L: qemu-arm@nongnu.org
S: Maintained
F: hw/arm/stm32l4x5_soc.c
+F: hw/char/stm32l4x5_usart.c
F: hw/misc/stm32l4x5_exti.c
F: hw/misc/stm32l4x5_syscfg.c
F: hw/misc/stm32l4x5_rcc.c
``resettable_reset()``. These functions take two parameters: a pointer to the
object to reset and a reset type.
-Several types of reset will be supported. For now only cold reset is defined;
-others may be added later. The Resettable interface handles reset types with an
-enum:
+The Resettable interface handles reset types with an enum ``ResetType``:
``RESET_TYPE_COLD``
Cold reset is supported by every resettable object. In QEMU, it means we reset
from what is a real hardware cold reset. It differs from other resets (like
warm or bus resets) which may keep certain parts untouched.
+``RESET_TYPE_SNAPSHOT_LOAD``
+ This is called for a reset which is being done to put the system into a
+ clean state prior to loading a snapshot. (This corresponds to a reset
+ with ``SHUTDOWN_CAUSE_SNAPSHOT_LOAD``.) Almost all devices should treat
+ this the same as ``RESET_TYPE_COLD``. The main exception is devices which
+ have some non-deterministic state they want to reinitialize to a different
+ value on each cold reset, such as RNG seed information, and which they
+ must not reinitialize on a snapshot-load reset.
+
+Devices which implement reset methods must treat any unknown ``ResetType``
+as equivalent to ``RESET_TYPE_COLD``; this will reduce the amount of
+existing code we need to change if we add more types in future.
+
Calling ``resettable_reset()`` is equivalent to calling
``resettable_assert_reset()`` then ``resettable_release_reset()``. It is
possible to interleave multiple calls to these three functions. There may
mydev->var = 0;
}
- static void mydev_reset_hold(Object *obj)
+ static void mydev_reset_hold(Object *obj, ResetType type)
{
MyDevClass *myclass = MYDEV_GET_CLASS(obj);
MyDevState *mydev = MYDEV(obj);
/* call parent class hold phase */
if (myclass->parent_phases.hold) {
- myclass->parent_phases.hold(obj);
+ myclass->parent_phases.hold(obj, type);
}
/* set an IO */
qemu_set_irq(mydev->irq, 1);
}
- static void mydev_reset_exit(Object *obj)
+ static void mydev_reset_exit(Object *obj, ResetType type)
{
MyDevClass *myclass = MYDEV_GET_CLASS(obj);
MyDevState *mydev = MYDEV(obj);
/* call parent class exit phase */
if (myclass->parent_phases.exit) {
- myclass->parent_phases.exit(obj);
+ myclass->parent_phases.exit(obj, type);
}
/* clear an IO */
qemu_set_irq(mydev->irq, 0);
- STM32L4x5 SYSCFG (System configuration controller)
- STM32L4x5 RCC (Reset and clock control)
- STM32L4x5 GPIOs (General-purpose I/Os)
+- STM32L4x5 USARTs, UARTs and LPUART (Serial ports)
Missing devices
"""""""""""""""
The B-L475E-IOT01A does *not* support the following devices:
-- Serial ports (UART)
- Analog to Digital Converter (ADC)
- SPI controller
- Timer controller (TIMER)
- FEAT_MTE (Memory Tagging Extension)
- FEAT_MTE2 (Memory Tagging Extension)
- FEAT_MTE3 (MTE Asymmetric Fault Handling)
+- FEAT_NMI (Non-maskable Interrupt)
- FEAT_NV (Nested Virtualization)
- FEAT_NV2 (Enhanced nested virtualization support)
- FEAT_PACIMP (Pointer authentication - IMPLEMENTATION DEFINED algorithm)
npcm7xx_adc_reset(s);
}
-static void npcm7xx_adc_hold_reset(Object *obj)
+static void npcm7xx_adc_hold_reset(Object *obj, ResetType type)
{
NPCM7xxADCState *s = NPCM7XX_ADC(obj);
select STM32L4X5_SYSCFG
select STM32L4X5_RCC
select STM32L4X5_GPIO
+ select STM32L4X5_USART
config XLNX_ZYNQMP_ARM
bool
return 0;
}
-static void pxa2xx_pic_reset_hold(Object *obj)
+static void pxa2xx_pic_reset_hold(Object *obj, ResetType type)
{
PXA2xxPICState *s = PXA2XX_PIC(obj);
}
}
-static void smmu_base_reset_hold(Object *obj)
+static void smmu_base_reset_hold(Object *obj, ResetType type)
{
SMMUState *s = ARM_SMMU(obj);
}
}
-static void smmu_reset_hold(Object *obj)
+static void smmu_reset_hold(Object *obj, ResetType type)
{
SMMUv3State *s = ARM_SMMUV3(obj);
SMMUv3Class *c = ARM_SMMUV3_GET_CLASS(s);
if (c->parent_phases.hold) {
- c->parent_phases.hold(obj);
+ c->parent_phases.hold(obj, type);
}
smmuv3_init_regs(s);
s->dcgc[0] = 1;
}
-static void stellaris_sys_reset_hold(Object *obj)
+static void stellaris_sys_reset_hold(Object *obj, ResetType type)
{
ssys_state *s = STELLARIS_SYS(obj);
ssys_calculate_system_clock(s, true);
}
-static void stellaris_sys_reset_exit(Object *obj)
+static void stellaris_sys_reset_exit(Object *obj, ResetType type)
{
}
i2c_end_transfer(s->bus);
}
-static void stellaris_i2c_reset_hold(Object *obj)
+static void stellaris_i2c_reset_hold(Object *obj, ResetType type)
{
stellaris_i2c_state *s = STELLARIS_I2C(obj);
s->mcr = 0;
}
-static void stellaris_i2c_reset_exit(Object *obj)
+static void stellaris_i2c_reset_exit(Object *obj, ResetType type)
{
stellaris_i2c_state *s = STELLARIS_I2C(obj);
}
}
-static void stellaris_adc_reset_hold(Object *obj)
+static void stellaris_adc_reset_hold(Object *obj, ResetType type)
{
StellarisADCState *s = STELLARIS_ADC(obj);
int n;
#include "sysemu/sysemu.h"
#include "hw/or-irq.h"
#include "hw/arm/stm32l4x5_soc.h"
+#include "hw/char/stm32l4x5_usart.h"
#include "hw/gpio/stm32l4x5_gpio.h"
#include "hw/qdev-clock.h"
#include "hw/misc/unimp.h"
{ 0x48001C00, 0x0000000F, 0x00000000, 0x00000000 },
};
+static const hwaddr usart_addr[] = {
+ 0x40013800, /* "USART1", 0x400 */
+ 0x40004400, /* "USART2", 0x400 */
+ 0x40004800, /* "USART3", 0x400 */
+};
+static const hwaddr uart_addr[] = {
+ 0x40004C00, /* "UART4" , 0x400 */
+ 0x40005000 /* "UART5" , 0x400 */
+};
+
+#define LPUART_BASE_ADDRESS 0x40008000
+
+static const int usart_irq[] = { 37, 38, 39 };
+static const int uart_irq[] = { 52, 53 };
+#define LPUART_IRQ 70
+
static void stm32l4x5_soc_initfn(Object *obj)
{
Stm32l4x5SocState *s = STM32L4X5_SOC(obj);
g_autofree char *name = g_strdup_printf("gpio%c", 'a' + i);
object_initialize_child(obj, name, &s->gpio[i], TYPE_STM32L4X5_GPIO);
}
+
+ for (int i = 0; i < STM_NUM_USARTS; i++) {
+ object_initialize_child(obj, "usart[*]", &s->usart[i],
+ TYPE_STM32L4X5_USART);
+ }
+
+ for (int i = 0; i < STM_NUM_UARTS; i++) {
+ object_initialize_child(obj, "uart[*]", &s->uart[i],
+ TYPE_STM32L4X5_UART);
+ }
+ object_initialize_child(obj, "lpuart1", &s->lpuart,
+ TYPE_STM32L4X5_LPUART);
}
static void stm32l4x5_soc_realize(DeviceState *dev_soc, Error **errp)
sysbus_mmio_map(busdev, 0, RCC_BASE_ADDRESS);
sysbus_connect_irq(busdev, 0, qdev_get_gpio_in(armv7m, RCC_IRQ));
+ /* USART devices */
+ for (int i = 0; i < STM_NUM_USARTS; i++) {
+ g_autofree char *name = g_strdup_printf("usart%d-out", i + 1);
+ dev = DEVICE(&(s->usart[i]));
+ qdev_prop_set_chr(dev, "chardev", serial_hd(i));
+ qdev_connect_clock_in(dev, "clk",
+ qdev_get_clock_out(DEVICE(&(s->rcc)), name));
+ busdev = SYS_BUS_DEVICE(dev);
+ if (!sysbus_realize(busdev, errp)) {
+ return;
+ }
+ sysbus_mmio_map(busdev, 0, usart_addr[i]);
+ sysbus_connect_irq(busdev, 0, qdev_get_gpio_in(armv7m, usart_irq[i]));
+ }
+
+ /*
+ * TODO: Connect the USARTs, UARTs and LPUART to the EXTI once the EXTI
+ * can handle other gpio-in than the gpios. (e.g. Direct Lines for the
+ * usarts)
+ */
+
+ /* UART devices */
+ for (int i = 0; i < STM_NUM_UARTS; i++) {
+ g_autofree char *name = g_strdup_printf("uart%d-out", STM_NUM_USARTS + i + 1);
+ dev = DEVICE(&(s->uart[i]));
+ qdev_prop_set_chr(dev, "chardev", serial_hd(STM_NUM_USARTS + i));
+ qdev_connect_clock_in(dev, "clk",
+ qdev_get_clock_out(DEVICE(&(s->rcc)), name));
+ busdev = SYS_BUS_DEVICE(dev);
+ if (!sysbus_realize(busdev, errp)) {
+ return;
+ }
+ sysbus_mmio_map(busdev, 0, uart_addr[i]);
+ sysbus_connect_irq(busdev, 0, qdev_get_gpio_in(armv7m, uart_irq[i]));
+ }
+
+ /* LPUART device*/
+ dev = DEVICE(&(s->lpuart));
+ qdev_prop_set_chr(dev, "chardev", serial_hd(STM_NUM_USARTS + STM_NUM_UARTS));
+ qdev_connect_clock_in(dev, "clk",
+ qdev_get_clock_out(DEVICE(&(s->rcc)), "lpuart1-out"));
+ busdev = SYS_BUS_DEVICE(dev);
+ if (!sysbus_realize(busdev, errp)) {
+ return;
+ }
+ sysbus_mmio_map(busdev, 0, LPUART_BASE_ADDRESS);
+ sysbus_connect_irq(busdev, 0, qdev_get_gpio_in(armv7m, LPUART_IRQ));
+
/* APB1 BUS */
create_unimplemented_device("TIM2", 0x40000000, 0x400);
create_unimplemented_device("TIM3", 0x40000400, 0x400);
create_unimplemented_device("SPI2", 0x40003800, 0x400);
create_unimplemented_device("SPI3", 0x40003C00, 0x400);
/* RESERVED: 0x40004000, 0x400 */
- create_unimplemented_device("USART2", 0x40004400, 0x400);
- create_unimplemented_device("USART3", 0x40004800, 0x400);
- create_unimplemented_device("UART4", 0x40004C00, 0x400);
- create_unimplemented_device("UART5", 0x40005000, 0x400);
create_unimplemented_device("I2C1", 0x40005400, 0x400);
create_unimplemented_device("I2C2", 0x40005800, 0x400);
create_unimplemented_device("I2C3", 0x40005C00, 0x400);
create_unimplemented_device("DAC1", 0x40007400, 0x400);
create_unimplemented_device("OPAMP", 0x40007800, 0x400);
create_unimplemented_device("LPTIM1", 0x40007C00, 0x400);
- create_unimplemented_device("LPUART1", 0x40008000, 0x400);
/* RESERVED: 0x40008400, 0x400 */
create_unimplemented_device("SWPMI1", 0x40008800, 0x400);
/* RESERVED: 0x40008C00, 0x800 */
create_unimplemented_device("TIM1", 0x40012C00, 0x400);
create_unimplemented_device("SPI1", 0x40013000, 0x400);
create_unimplemented_device("TIM8", 0x40013400, 0x400);
- create_unimplemented_device("USART1", 0x40013800, 0x400);
/* RESERVED: 0x40013C00, 0x400 */
create_unimplemented_device("TIM15", 0x40014000, 0x400);
create_unimplemented_device("TIM16", 0x40014400, 0x400);
vms->msi_controller = VIRT_MSI_CTRL_GICV2M;
}
+/*
+ * If the CPU has FEAT_NMI, then turn on the NMI support in the GICv3 too.
+ * It's permitted to have a configuration with NMI in the CPU (and thus the
+ * GICv3 CPU interface) but not in the distributor/redistributors, but it's
+ * not very useful.
+ */
+static bool gicv3_nmi_present(VirtMachineState *vms)
+{
+ ARMCPU *cpu = ARM_CPU(qemu_get_cpu(0));
+
+ return tcg_enabled() && cpu_isar_feature(aa64_nmi, cpu) &&
+ (vms->gic_version != VIRT_GIC_VERSION_2);
+}
+
static void create_gic(VirtMachineState *vms, MemoryRegion *mem)
{
MachineState *ms = MACHINE(vms);
vms->virt);
}
}
+
+ if (gicv3_nmi_present(vms)) {
+ qdev_prop_set_bit(vms->gic, "has-nmi", true);
+ }
+
gicbusdev = SYS_BUS_DEVICE(vms->gic);
sysbus_realize_and_unref(gicbusdev, &error_fatal);
sysbus_mmio_map(gicbusdev, 0, vms->memmap[VIRT_GIC_DIST].base);
/* Wire the outputs from each CPU's generic timer and the GICv3
* maintenance interrupt signal to the appropriate GIC PPI inputs,
- * and the GIC's IRQ/FIQ/VIRQ/VFIQ interrupt outputs to the CPU's inputs.
+ * and the GIC's IRQ/FIQ/VIRQ/VFIQ/NMI/VINMI interrupt outputs to the
+ * CPU's inputs.
*/
for (i = 0; i < smp_cpus; i++) {
DeviceState *cpudev = DEVICE(qemu_get_cpu(i));
qdev_get_gpio_in(cpudev, ARM_CPU_VIRQ));
sysbus_connect_irq(gicbusdev, i + 3 * smp_cpus,
qdev_get_gpio_in(cpudev, ARM_CPU_VFIQ));
+
+ if (vms->gic_version != VIRT_GIC_VERSION_2) {
+ sysbus_connect_irq(gicbusdev, i + 4 * smp_cpus,
+ qdev_get_gpio_in(cpudev, ARM_CPU_NMI));
+ sysbus_connect_irq(gicbusdev, i + 5 * smp_cpus,
+ qdev_get_gpio_in(cpudev, ARM_CPU_VINMI));
+ }
}
fdt_add_gic_node(vms);
g_free(name);
}
-static void asc_reset_hold(Object *obj)
+static void asc_reset_hold(Object *obj, ResetType type)
{
ASCState *s = ASC(obj);
config STM32F2XX_USART
bool
+config STM32L4X5_USART
+ bool
+
config CMSDK_APB_UART
bool
s->r[R_TTRIG] = 0x00000020;
}
-static void cadence_uart_reset_hold(Object *obj)
+static void cadence_uart_reset_hold(Object *obj, ResetType type)
{
CadenceUARTState *s = CADENCE_UART(obj);
system_ss.add(when: 'CONFIG_SIFIVE_UART', if_true: files('sifive_uart.c'))
system_ss.add(when: 'CONFIG_SH_SCI', if_true: files('sh_serial.c'))
system_ss.add(when: 'CONFIG_STM32F2XX_USART', if_true: files('stm32f2xx_usart.c'))
+system_ss.add(when: 'CONFIG_STM32L4X5_USART', if_true: files('stm32l4x5_usart.c'))
system_ss.add(when: 'CONFIG_MCHP_PFSOC_MMUART', if_true: files('mchp_pfsoc_mmuart.c'))
system_ss.add(when: 'CONFIG_HTIF', if_true: files('riscv_htif.c'))
system_ss.add(when: 'CONFIG_GOLDFISH_TTY', if_true: files('goldfish_tty.c'))
s->rx_fifo_len = 0;
}
-static void sifive_uart_reset_hold(Object *obj)
+static void sifive_uart_reset_hold(Object *obj, ResetType type)
{
SiFiveUARTState *s = SIFIVE_UART(obj);
qemu_irq_lower(s->irq);
--- /dev/null
+/*
+ * STM32L4X5 USART (Universal Synchronous Asynchronous Receiver Transmitter)
+ *
+ * Copyright (c) 2023 Arnaud Minier <arnaud.minier@telecom-paris.fr>
+ * Copyright (c) 2023 Inès Varhol <ines.varhol@telecom-paris.fr>
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ *
+ * This work is licensed under the terms of the GNU GPL, version 2 or later.
+ * See the COPYING file in the top-level directory.
+ *
+ * The STM32L4X5 USART is heavily inspired by the stm32f2xx_usart
+ * by Alistair Francis.
+ * The reference used is the STMicroElectronics RM0351 Reference manual
+ * for STM32L4x5 and STM32L4x6 advanced Arm ® -based 32-bit MCUs.
+ */
+
+#include "qemu/osdep.h"
+#include "qemu/log.h"
+#include "qemu/module.h"
+#include "qapi/error.h"
+#include "chardev/char-fe.h"
+#include "chardev/char-serial.h"
+#include "migration/vmstate.h"
+#include "hw/char/stm32l4x5_usart.h"
+#include "hw/clock.h"
+#include "hw/irq.h"
+#include "hw/qdev-clock.h"
+#include "hw/qdev-properties.h"
+#include "hw/qdev-properties-system.h"
+#include "hw/registerfields.h"
+#include "trace.h"
+
+
+REG32(CR1, 0x00)
+ FIELD(CR1, M1, 28, 1) /* Word length (part 2, see M0) */
+ FIELD(CR1, EOBIE, 27, 1) /* End of Block interrupt enable */
+ FIELD(CR1, RTOIE, 26, 1) /* Receiver timeout interrupt enable */
+ FIELD(CR1, DEAT, 21, 5) /* Driver Enable assertion time */
+ FIELD(CR1, DEDT, 16, 5) /* Driver Enable de-assertion time */
+ FIELD(CR1, OVER8, 15, 1) /* Oversampling mode */
+ FIELD(CR1, CMIE, 14, 1) /* Character match interrupt enable */
+ FIELD(CR1, MME, 13, 1) /* Mute mode enable */
+ FIELD(CR1, M0, 12, 1) /* Word length (part 1, see M1) */
+ FIELD(CR1, WAKE, 11, 1) /* Receiver wakeup method */
+ FIELD(CR1, PCE, 10, 1) /* Parity control enable */
+ FIELD(CR1, PS, 9, 1) /* Parity selection */
+ FIELD(CR1, PEIE, 8, 1) /* PE interrupt enable */
+ FIELD(CR1, TXEIE, 7, 1) /* TXE interrupt enable */
+ FIELD(CR1, TCIE, 6, 1) /* Transmission complete interrupt enable */
+ FIELD(CR1, RXNEIE, 5, 1) /* RXNE interrupt enable */
+ FIELD(CR1, IDLEIE, 4, 1) /* IDLE interrupt enable */
+ FIELD(CR1, TE, 3, 1) /* Transmitter enable */
+ FIELD(CR1, RE, 2, 1) /* Receiver enable */
+ FIELD(CR1, UESM, 1, 1) /* USART enable in Stop mode */
+ FIELD(CR1, UE, 0, 1) /* USART enable */
+REG32(CR2, 0x04)
+ FIELD(CR2, ADD_1, 28, 4) /* ADD[7:4] */
+ FIELD(CR2, ADD_0, 24, 1) /* ADD[3:0] */
+ FIELD(CR2, RTOEN, 23, 1) /* Receiver timeout enable */
+ FIELD(CR2, ABRMOD, 21, 2) /* Auto baud rate mode */
+ FIELD(CR2, ABREN, 20, 1) /* Auto baud rate enable */
+ FIELD(CR2, MSBFIRST, 19, 1) /* Most significant bit first */
+ FIELD(CR2, DATAINV, 18, 1) /* Binary data inversion */
+ FIELD(CR2, TXINV, 17, 1) /* TX pin active level inversion */
+ FIELD(CR2, RXINV, 16, 1) /* RX pin active level inversion */
+ FIELD(CR2, SWAP, 15, 1) /* Swap RX/TX pins */
+ FIELD(CR2, LINEN, 14, 1) /* LIN mode enable */
+ FIELD(CR2, STOP, 12, 2) /* STOP bits */
+ FIELD(CR2, CLKEN, 11, 1) /* Clock enable */
+ FIELD(CR2, CPOL, 10, 1) /* Clock polarity */
+ FIELD(CR2, CPHA, 9, 1) /* Clock phase */
+ FIELD(CR2, LBCL, 8, 1) /* Last bit clock pulse */
+ FIELD(CR2, LBDIE, 6, 1) /* LIN break detection interrupt enable */
+ FIELD(CR2, LBDL, 5, 1) /* LIN break detection length */
+ FIELD(CR2, ADDM7, 4, 1) /* 7-bit / 4-bit Address Detection */
+
+REG32(CR3, 0x08)
+ /* TCBGTIE only on STM32L496xx/4A6xx devices */
+ FIELD(CR3, UCESM, 23, 1) /* USART Clock Enable in Stop Mode */
+ FIELD(CR3, WUFIE, 22, 1) /* Wakeup from Stop mode interrupt enable */
+ FIELD(CR3, WUS, 20, 2) /* Wakeup from Stop mode interrupt flag selection */
+ FIELD(CR3, SCARCNT, 17, 3) /* Smartcard auto-retry count */
+ FIELD(CR3, DEP, 15, 1) /* Driver enable polarity selection */
+ FIELD(CR3, DEM, 14, 1) /* Driver enable mode */
+ FIELD(CR3, DDRE, 13, 1) /* DMA Disable on Reception Error */
+ FIELD(CR3, OVRDIS, 12, 1) /* Overrun Disable */
+ FIELD(CR3, ONEBIT, 11, 1) /* One sample bit method enable */
+ FIELD(CR3, CTSIE, 10, 1) /* CTS interrupt enable */
+ FIELD(CR3, CTSE, 9, 1) /* CTS enable */
+ FIELD(CR3, RTSE, 8, 1) /* RTS enable */
+ FIELD(CR3, DMAT, 7, 1) /* DMA enable transmitter */
+ FIELD(CR3, DMAR, 6, 1) /* DMA enable receiver */
+ FIELD(CR3, SCEN, 5, 1) /* Smartcard mode enable */
+ FIELD(CR3, NACK, 4, 1) /* Smartcard NACK enable */
+ FIELD(CR3, HDSEL, 3, 1) /* Half-duplex selection */
+ FIELD(CR3, IRLP, 2, 1) /* IrDA low-power */
+ FIELD(CR3, IREN, 1, 1) /* IrDA mode enable */
+ FIELD(CR3, EIE, 0, 1) /* Error interrupt enable */
+REG32(BRR, 0x0C)
+ FIELD(BRR, BRR, 0, 16)
+REG32(GTPR, 0x10)
+ FIELD(GTPR, GT, 8, 8) /* Guard time value */
+ FIELD(GTPR, PSC, 0, 8) /* Prescaler value */
+REG32(RTOR, 0x14)
+ FIELD(RTOR, BLEN, 24, 8) /* Block Length */
+ FIELD(RTOR, RTO, 0, 24) /* Receiver timeout value */
+REG32(RQR, 0x18)
+ FIELD(RQR, TXFRQ, 4, 1) /* Transmit data flush request */
+ FIELD(RQR, RXFRQ, 3, 1) /* Receive data flush request */
+ FIELD(RQR, MMRQ, 2, 1) /* Mute mode request */
+ FIELD(RQR, SBKRQ, 1, 1) /* Send break request */
+ FIELD(RQR, ABBRRQ, 0, 1) /* Auto baud rate request */
+REG32(ISR, 0x1C)
+ /* TCBGT only for STM32L475xx/476xx/486xx devices */
+ FIELD(ISR, REACK, 22, 1) /* Receive enable acknowledge flag */
+ FIELD(ISR, TEACK, 21, 1) /* Transmit enable acknowledge flag */
+ FIELD(ISR, WUF, 20, 1) /* Wakeup from Stop mode flag */
+ FIELD(ISR, RWU, 19, 1) /* Receiver wakeup from Mute mode */
+ FIELD(ISR, SBKF, 18, 1) /* Send break flag */
+ FIELD(ISR, CMF, 17, 1) /* Character match flag */
+ FIELD(ISR, BUSY, 16, 1) /* Busy flag */
+ FIELD(ISR, ABRF, 15, 1) /* Auto Baud rate flag */
+ FIELD(ISR, ABRE, 14, 1) /* Auto Baud rate error */
+ FIELD(ISR, EOBF, 12, 1) /* End of block flag */
+ FIELD(ISR, RTOF, 11, 1) /* Receiver timeout */
+ FIELD(ISR, CTS, 10, 1) /* CTS flag */
+ FIELD(ISR, CTSIF, 9, 1) /* CTS interrupt flag */
+ FIELD(ISR, LBDF, 8, 1) /* LIN break detection flag */
+ FIELD(ISR, TXE, 7, 1) /* Transmit data register empty */
+ FIELD(ISR, TC, 6, 1) /* Transmission complete */
+ FIELD(ISR, RXNE, 5, 1) /* Read data register not empty */
+ FIELD(ISR, IDLE, 4, 1) /* Idle line detected */
+ FIELD(ISR, ORE, 3, 1) /* Overrun error */
+ FIELD(ISR, NF, 2, 1) /* START bit Noise detection flag */
+ FIELD(ISR, FE, 1, 1) /* Framing Error */
+ FIELD(ISR, PE, 0, 1) /* Parity Error */
+REG32(ICR, 0x20)
+ FIELD(ICR, WUCF, 20, 1) /* Wakeup from Stop mode clear flag */
+ FIELD(ICR, CMCF, 17, 1) /* Character match clear flag */
+ FIELD(ICR, EOBCF, 12, 1) /* End of block clear flag */
+ FIELD(ICR, RTOCF, 11, 1) /* Receiver timeout clear flag */
+ FIELD(ICR, CTSCF, 9, 1) /* CTS clear flag */
+ FIELD(ICR, LBDCF, 8, 1) /* LIN break detection clear flag */
+ /* TCBGTCF only on STM32L496xx/4A6xx devices */
+ FIELD(ICR, TCCF, 6, 1) /* Transmission complete clear flag */
+ FIELD(ICR, IDLECF, 4, 1) /* Idle line detected clear flag */
+ FIELD(ICR, ORECF, 3, 1) /* Overrun error clear flag */
+ FIELD(ICR, NCF, 2, 1) /* Noise detected clear flag */
+ FIELD(ICR, FECF, 1, 1) /* Framing error clear flag */
+ FIELD(ICR, PECF, 0, 1) /* Parity error clear flag */
+REG32(RDR, 0x24)
+ FIELD(RDR, RDR, 0, 9)
+REG32(TDR, 0x28)
+ FIELD(TDR, TDR, 0, 9)
+
+static void stm32l4x5_update_irq(Stm32l4x5UsartBaseState *s)
+{
+ if (((s->isr & R_ISR_WUF_MASK) && (s->cr3 & R_CR3_WUFIE_MASK)) ||
+ ((s->isr & R_ISR_CMF_MASK) && (s->cr1 & R_CR1_CMIE_MASK)) ||
+ ((s->isr & R_ISR_ABRF_MASK) && (s->cr1 & R_CR1_RXNEIE_MASK)) ||
+ ((s->isr & R_ISR_EOBF_MASK) && (s->cr1 & R_CR1_EOBIE_MASK)) ||
+ ((s->isr & R_ISR_RTOF_MASK) && (s->cr1 & R_CR1_RTOIE_MASK)) ||
+ ((s->isr & R_ISR_CTSIF_MASK) && (s->cr3 & R_CR3_CTSIE_MASK)) ||
+ ((s->isr & R_ISR_LBDF_MASK) && (s->cr2 & R_CR2_LBDIE_MASK)) ||
+ ((s->isr & R_ISR_TXE_MASK) && (s->cr1 & R_CR1_TXEIE_MASK)) ||
+ ((s->isr & R_ISR_TC_MASK) && (s->cr1 & R_CR1_TCIE_MASK)) ||
+ ((s->isr & R_ISR_RXNE_MASK) && (s->cr1 & R_CR1_RXNEIE_MASK)) ||
+ ((s->isr & R_ISR_IDLE_MASK) && (s->cr1 & R_CR1_IDLEIE_MASK)) ||
+ ((s->isr & R_ISR_ORE_MASK) &&
+ ((s->cr1 & R_CR1_RXNEIE_MASK) || (s->cr3 & R_CR3_EIE_MASK))) ||
+ /* TODO: Handle NF ? */
+ ((s->isr & R_ISR_FE_MASK) && (s->cr3 & R_CR3_EIE_MASK)) ||
+ ((s->isr & R_ISR_PE_MASK) && (s->cr1 & R_CR1_PEIE_MASK))) {
+ qemu_irq_raise(s->irq);
+ trace_stm32l4x5_usart_irq_raised(s->isr);
+ } else {
+ qemu_irq_lower(s->irq);
+ trace_stm32l4x5_usart_irq_lowered();
+ }
+}
+
+static int stm32l4x5_usart_base_can_receive(void *opaque)
+{
+ Stm32l4x5UsartBaseState *s = opaque;
+
+ if (!(s->isr & R_ISR_RXNE_MASK)) {
+ return 1;
+ }
+
+ return 0;
+}
+
+static void stm32l4x5_usart_base_receive(void *opaque, const uint8_t *buf,
+ int size)
+{
+ Stm32l4x5UsartBaseState *s = opaque;
+
+ if (!((s->cr1 & R_CR1_UE_MASK) && (s->cr1 & R_CR1_RE_MASK))) {
+ trace_stm32l4x5_usart_receiver_not_enabled(
+ FIELD_EX32(s->cr1, CR1, UE), FIELD_EX32(s->cr1, CR1, RE));
+ return;
+ }
+
+ /* Check if overrun detection is enabled and if there is an overrun */
+ if (!(s->cr3 & R_CR3_OVRDIS_MASK) && (s->isr & R_ISR_RXNE_MASK)) {
+ /*
+ * A character has been received while
+ * the previous has not been read = Overrun.
+ */
+ s->isr |= R_ISR_ORE_MASK;
+ trace_stm32l4x5_usart_overrun_detected(s->rdr, *buf);
+ } else {
+ /* No overrun */
+ s->rdr = *buf;
+ s->isr |= R_ISR_RXNE_MASK;
+ trace_stm32l4x5_usart_rx(s->rdr);
+ }
+
+ stm32l4x5_update_irq(s);
+}
+
+/*
+ * Try to send tx data, and arrange to be called back later if
+ * we can't (ie the char backend is busy/blocking).
+ */
+static gboolean usart_transmit(void *do_not_use, GIOCondition cond,
+ void *opaque)
+{
+ Stm32l4x5UsartBaseState *s = STM32L4X5_USART_BASE(opaque);
+ int ret;
+ /* TODO: Handle 9 bits transmission */
+ uint8_t ch = s->tdr;
+
+ s->watch_tag = 0;
+
+ if (!(s->cr1 & R_CR1_TE_MASK) || (s->isr & R_ISR_TXE_MASK)) {
+ return G_SOURCE_REMOVE;
+ }
+
+ ret = qemu_chr_fe_write(&s->chr, &ch, 1);
+ if (ret <= 0) {
+ s->watch_tag = qemu_chr_fe_add_watch(&s->chr, G_IO_OUT | G_IO_HUP,
+ usart_transmit, s);
+ if (!s->watch_tag) {
+ /*
+ * Most common reason to be here is "no chardev backend":
+ * just insta-drain the buffer, so the serial output
+ * goes into a void, rather than blocking the guest.
+ */
+ goto buffer_drained;
+ }
+ /* Transmit pending */
+ trace_stm32l4x5_usart_tx_pending();
+ return G_SOURCE_REMOVE;
+ }
+
+buffer_drained:
+ /* Character successfully sent */
+ trace_stm32l4x5_usart_tx(ch);
+ s->isr |= R_ISR_TC_MASK | R_ISR_TXE_MASK;
+ stm32l4x5_update_irq(s);
+ return G_SOURCE_REMOVE;
+}
+
+static void usart_cancel_transmit(Stm32l4x5UsartBaseState *s)
+{
+ if (s->watch_tag) {
+ g_source_remove(s->watch_tag);
+ s->watch_tag = 0;
+ }
+}
+
+static void stm32l4x5_update_params(Stm32l4x5UsartBaseState *s)
+{
+ int speed, parity, data_bits, stop_bits;
+ uint32_t value, usart_div;
+ QEMUSerialSetParams ssp;
+
+ /* Select the parity type */
+ if (s->cr1 & R_CR1_PCE_MASK) {
+ if (s->cr1 & R_CR1_PS_MASK) {
+ parity = 'O';
+ } else {
+ parity = 'E';
+ }
+ } else {
+ parity = 'N';
+ }
+
+ /* Select the number of stop bits */
+ switch (FIELD_EX32(s->cr2, CR2, STOP)) {
+ case 0:
+ stop_bits = 1;
+ break;
+ case 2:
+ stop_bits = 2;
+ break;
+ default:
+ qemu_log_mask(LOG_UNIMP,
+ "UNIMPLEMENTED: fractionnal stop bits; CR2[13:12] = %u",
+ FIELD_EX32(s->cr2, CR2, STOP));
+ return;
+ }
+
+ /* Select the length of the word */
+ switch ((FIELD_EX32(s->cr1, CR1, M1) << 1) | FIELD_EX32(s->cr1, CR1, M0)) {
+ case 0:
+ data_bits = 8;
+ break;
+ case 1:
+ data_bits = 9;
+ break;
+ case 2:
+ data_bits = 7;
+ break;
+ default:
+ qemu_log_mask(LOG_GUEST_ERROR,
+ "UNDEFINED: invalid word length, CR1.M = 0b11");
+ return;
+ }
+
+ /* Select the baud rate */
+ value = FIELD_EX32(s->brr, BRR, BRR);
+ if (value < 16) {
+ qemu_log_mask(LOG_GUEST_ERROR,
+ "UNDEFINED: BRR less than 16: %u", value);
+ return;
+ }
+
+ if (FIELD_EX32(s->cr1, CR1, OVER8) == 0) {
+ /*
+ * Oversampling by 16
+ * BRR = USARTDIV
+ */
+ usart_div = value;
+ } else {
+ /*
+ * Oversampling by 8
+ * - BRR[2:0] = USARTDIV[3:0] shifted 1 bit to the right.
+ * - BRR[3] must be kept cleared.
+ * - BRR[15:4] = USARTDIV[15:4]
+ * - The frequency is multiplied by 2
+ */
+ usart_div = ((value & 0xFFF0) | ((value & 0x0007) << 1)) / 2;
+ }
+
+ speed = clock_get_hz(s->clk) / usart_div;
+
+ ssp.speed = speed;
+ ssp.parity = parity;
+ ssp.data_bits = data_bits;
+ ssp.stop_bits = stop_bits;
+
+ qemu_chr_fe_ioctl(&s->chr, CHR_IOCTL_SERIAL_SET_PARAMS, &ssp);
+
+ trace_stm32l4x5_usart_update_params(speed, parity, data_bits, stop_bits);
+}
+
+static void stm32l4x5_usart_base_reset_hold(Object *obj, ResetType type)
+{
+ Stm32l4x5UsartBaseState *s = STM32L4X5_USART_BASE(obj);
+
+ s->cr1 = 0x00000000;
+ s->cr2 = 0x00000000;
+ s->cr3 = 0x00000000;
+ s->brr = 0x00000000;
+ s->gtpr = 0x00000000;
+ s->rtor = 0x00000000;
+ s->isr = 0x020000C0;
+ s->rdr = 0x00000000;
+ s->tdr = 0x00000000;
+
+ usart_cancel_transmit(s);
+ stm32l4x5_update_irq(s);
+}
+
+static void usart_update_rqr(Stm32l4x5UsartBaseState *s, uint32_t value)
+{
+ /* TXFRQ */
+ /* Reset RXNE flag */
+ if (value & R_RQR_RXFRQ_MASK) {
+ s->isr &= ~R_ISR_RXNE_MASK;
+ }
+ /* MMRQ */
+ /* SBKRQ */
+ /* ABRRQ */
+ stm32l4x5_update_irq(s);
+}
+
+static uint64_t stm32l4x5_usart_base_read(void *opaque, hwaddr addr,
+ unsigned int size)
+{
+ Stm32l4x5UsartBaseState *s = opaque;
+ uint64_t retvalue = 0;
+
+ switch (addr) {
+ case A_CR1:
+ retvalue = s->cr1;
+ break;
+ case A_CR2:
+ retvalue = s->cr2;
+ break;
+ case A_CR3:
+ retvalue = s->cr3;
+ break;
+ case A_BRR:
+ retvalue = FIELD_EX32(s->brr, BRR, BRR);
+ break;
+ case A_GTPR:
+ retvalue = s->gtpr;
+ break;
+ case A_RTOR:
+ retvalue = s->rtor;
+ break;
+ case A_RQR:
+ /* RQR is a write only register */
+ retvalue = 0x00000000;
+ break;
+ case A_ISR:
+ retvalue = s->isr;
+ break;
+ case A_ICR:
+ /* ICR is a clear register */
+ retvalue = 0x00000000;
+ break;
+ case A_RDR:
+ retvalue = FIELD_EX32(s->rdr, RDR, RDR);
+ /* Reset RXNE flag */
+ s->isr &= ~R_ISR_RXNE_MASK;
+ stm32l4x5_update_irq(s);
+ break;
+ case A_TDR:
+ retvalue = FIELD_EX32(s->tdr, TDR, TDR);
+ break;
+ default:
+ qemu_log_mask(LOG_GUEST_ERROR,
+ "%s: Bad offset 0x%"HWADDR_PRIx"\n", __func__, addr);
+ break;
+ }
+
+ trace_stm32l4x5_usart_read(addr, retvalue);
+
+ return retvalue;
+}
+
+static void stm32l4x5_usart_base_write(void *opaque, hwaddr addr,
+ uint64_t val64, unsigned int size)
+{
+ Stm32l4x5UsartBaseState *s = opaque;
+ const uint32_t value = val64;
+
+ trace_stm32l4x5_usart_write(addr, value);
+
+ switch (addr) {
+ case A_CR1:
+ s->cr1 = value;
+ stm32l4x5_update_params(s);
+ stm32l4x5_update_irq(s);
+ return;
+ case A_CR2:
+ s->cr2 = value;
+ stm32l4x5_update_params(s);
+ return;
+ case A_CR3:
+ s->cr3 = value;
+ return;
+ case A_BRR:
+ s->brr = value;
+ stm32l4x5_update_params(s);
+ return;
+ case A_GTPR:
+ s->gtpr = value;
+ return;
+ case A_RTOR:
+ s->rtor = value;
+ return;
+ case A_RQR:
+ usart_update_rqr(s, value);
+ return;
+ case A_ISR:
+ qemu_log_mask(LOG_GUEST_ERROR,
+ "%s: ISR is read only !\n", __func__);
+ return;
+ case A_ICR:
+ /* Clear the status flags */
+ s->isr &= ~value;
+ stm32l4x5_update_irq(s);
+ return;
+ case A_RDR:
+ qemu_log_mask(LOG_GUEST_ERROR,
+ "%s: RDR is read only !\n", __func__);
+ return;
+ case A_TDR:
+ s->tdr = value;
+ s->isr &= ~R_ISR_TXE_MASK;
+ usart_transmit(NULL, G_IO_OUT, s);
+ return;
+ default:
+ qemu_log_mask(LOG_GUEST_ERROR,
+ "%s: Bad offset 0x%"HWADDR_PRIx"\n", __func__, addr);
+ }
+}
+
+static const MemoryRegionOps stm32l4x5_usart_base_ops = {
+ .read = stm32l4x5_usart_base_read,
+ .write = stm32l4x5_usart_base_write,
+ .endianness = DEVICE_NATIVE_ENDIAN,
+ .valid = {
+ .max_access_size = 4,
+ .min_access_size = 4,
+ .unaligned = false
+ },
+ .impl = {
+ .max_access_size = 4,
+ .min_access_size = 4,
+ .unaligned = false
+ },
+};
+
+static Property stm32l4x5_usart_base_properties[] = {
+ DEFINE_PROP_CHR("chardev", Stm32l4x5UsartBaseState, chr),
+ DEFINE_PROP_END_OF_LIST(),
+};
+
+static void stm32l4x5_usart_base_init(Object *obj)
+{
+ Stm32l4x5UsartBaseState *s = STM32L4X5_USART_BASE(obj);
+
+ sysbus_init_irq(SYS_BUS_DEVICE(obj), &s->irq);
+
+ memory_region_init_io(&s->mmio, obj, &stm32l4x5_usart_base_ops, s,
+ TYPE_STM32L4X5_USART_BASE, 0x400);
+ sysbus_init_mmio(SYS_BUS_DEVICE(obj), &s->mmio);
+
+ s->clk = qdev_init_clock_in(DEVICE(s), "clk", NULL, s, 0);
+}
+
+static int stm32l4x5_usart_base_post_load(void *opaque, int version_id)
+{
+ Stm32l4x5UsartBaseState *s = (Stm32l4x5UsartBaseState *)opaque;
+
+ stm32l4x5_update_params(s);
+ return 0;
+}
+
+static const VMStateDescription vmstate_stm32l4x5_usart_base = {
+ .name = TYPE_STM32L4X5_USART_BASE,
+ .version_id = 1,
+ .minimum_version_id = 1,
+ .post_load = stm32l4x5_usart_base_post_load,
+ .fields = (VMStateField[]) {
+ VMSTATE_UINT32(cr1, Stm32l4x5UsartBaseState),
+ VMSTATE_UINT32(cr2, Stm32l4x5UsartBaseState),
+ VMSTATE_UINT32(cr3, Stm32l4x5UsartBaseState),
+ VMSTATE_UINT32(brr, Stm32l4x5UsartBaseState),
+ VMSTATE_UINT32(gtpr, Stm32l4x5UsartBaseState),
+ VMSTATE_UINT32(rtor, Stm32l4x5UsartBaseState),
+ VMSTATE_UINT32(isr, Stm32l4x5UsartBaseState),
+ VMSTATE_UINT32(rdr, Stm32l4x5UsartBaseState),
+ VMSTATE_UINT32(tdr, Stm32l4x5UsartBaseState),
+ VMSTATE_CLOCK(clk, Stm32l4x5UsartBaseState),
+ VMSTATE_END_OF_LIST()
+ }
+};
+
+
+static void stm32l4x5_usart_base_realize(DeviceState *dev, Error **errp)
+{
+ ERRP_GUARD();
+ Stm32l4x5UsartBaseState *s = STM32L4X5_USART_BASE(dev);
+ if (!clock_has_source(s->clk)) {
+ error_setg(errp, "USART clock must be wired up by SoC code");
+ return;
+ }
+
+ qemu_chr_fe_set_handlers(&s->chr, stm32l4x5_usart_base_can_receive,
+ stm32l4x5_usart_base_receive, NULL, NULL,
+ s, NULL, true);
+}
+
+static void stm32l4x5_usart_base_class_init(ObjectClass *klass, void *data)
+{
+ DeviceClass *dc = DEVICE_CLASS(klass);
+ ResettableClass *rc = RESETTABLE_CLASS(klass);
+
+ rc->phases.hold = stm32l4x5_usart_base_reset_hold;
+ device_class_set_props(dc, stm32l4x5_usart_base_properties);
+ dc->realize = stm32l4x5_usart_base_realize;
+ dc->vmsd = &vmstate_stm32l4x5_usart_base;
+}
+
+static void stm32l4x5_usart_class_init(ObjectClass *oc, void *data)
+{
+ Stm32l4x5UsartBaseClass *subc = STM32L4X5_USART_BASE_CLASS(oc);
+
+ subc->type = STM32L4x5_USART;
+}
+
+static void stm32l4x5_uart_class_init(ObjectClass *oc, void *data)
+{
+ Stm32l4x5UsartBaseClass *subc = STM32L4X5_USART_BASE_CLASS(oc);
+
+ subc->type = STM32L4x5_UART;
+}
+
+static void stm32l4x5_lpuart_class_init(ObjectClass *oc, void *data)
+{
+ Stm32l4x5UsartBaseClass *subc = STM32L4X5_USART_BASE_CLASS(oc);
+
+ subc->type = STM32L4x5_LPUART;
+}
+
+static const TypeInfo stm32l4x5_usart_types[] = {
+ {
+ .name = TYPE_STM32L4X5_USART_BASE,
+ .parent = TYPE_SYS_BUS_DEVICE,
+ .instance_size = sizeof(Stm32l4x5UsartBaseState),
+ .instance_init = stm32l4x5_usart_base_init,
+ .class_init = stm32l4x5_usart_base_class_init,
+ .abstract = true,
+ }, {
+ .name = TYPE_STM32L4X5_USART,
+ .parent = TYPE_STM32L4X5_USART_BASE,
+ .class_init = stm32l4x5_usart_class_init,
+ }, {
+ .name = TYPE_STM32L4X5_UART,
+ .parent = TYPE_STM32L4X5_USART_BASE,
+ .class_init = stm32l4x5_uart_class_init,
+ }, {
+ .name = TYPE_STM32L4X5_LPUART,
+ .parent = TYPE_STM32L4X5_USART_BASE,
+ .class_init = stm32l4x5_lpuart_class_init,
+ }
+};
+
+DEFINE_TYPES(stm32l4x5_usart_types)
sh_serial_read(char *id, unsigned size, uint64_t offs, uint64_t val) " %s size %d offs 0x%02" PRIx64 " -> 0x%02" PRIx64
sh_serial_write(char *id, unsigned size, uint64_t offs, uint64_t val) "%s size %d offs 0x%02" PRIx64 " <- 0x%02" PRIx64
+# stm32l4x5_usart.c
+stm32l4x5_usart_read(uint64_t addr, uint32_t data) "USART: Read <0x%" PRIx64 "> -> 0x%" PRIx32 ""
+stm32l4x5_usart_write(uint64_t addr, uint32_t data) "USART: Write <0x%" PRIx64 "> <- 0x%" PRIx32 ""
+stm32l4x5_usart_rx(uint8_t c) "USART: got character 0x%x from backend"
+stm32l4x5_usart_tx(uint8_t c) "USART: character 0x%x sent to backend"
+stm32l4x5_usart_tx_pending(void) "USART: character send to backend pending"
+stm32l4x5_usart_irq_raised(uint32_t reg) "USART: IRQ raised: 0x%08"PRIx32
+stm32l4x5_usart_irq_lowered(void) "USART: IRQ lowered"
+stm32l4x5_usart_overrun_detected(uint8_t current, uint8_t received) "USART: Overrun detected, RDR='0x%x', received 0x%x"
+stm32l4x5_usart_receiver_not_enabled(uint8_t ue_bit, uint8_t re_bit) "USART: Receiver not enabled, UE=0x%x, RE=0x%x"
+stm32l4x5_usart_update_params(int speed, uint8_t parity, int data, int stop) "USART: speed: %d, parity: %c, data bits: %d, stop bits: %d"
+
# xen_console.c
xen_console_connect(unsigned int idx, unsigned int ring_ref, unsigned int port, unsigned int limit) "idx %u ring_ref %u port %u limit %u"
xen_console_disconnect(unsigned int idx) "idx %u"
trace_cpu_reset(cpu->cpu_index);
}
-static void cpu_common_reset_hold(Object *obj)
+static void cpu_common_reset_hold(Object *obj, ResetType type)
{
CPUState *cpu = CPU(obj);
CPUClass *cc = CPU_GET_CLASS(cpu);
rc->phases.enter(OBJECT(dev), RESET_TYPE_COLD);
}
if (rc->phases.hold) {
- rc->phases.hold(OBJECT(dev));
+ rc->phases.hold(OBJECT(dev), RESET_TYPE_COLD);
}
if (rc->phases.exit) {
- rc->phases.exit(OBJECT(dev));
+ rc->phases.exit(OBJECT(dev), RESET_TYPE_COLD);
}
}
return root_reset_container;
}
-/*
- * Reason why the currently in-progress qemu_devices_reset() was called.
- * If we made at least SHUTDOWN_CAUSE_SNAPSHOT_LOAD have a corresponding
- * ResetType we could perhaps avoid the need for this global.
- */
-static ShutdownCause device_reset_reason;
-
/*
* This is an Object which implements Resettable simply to call the
* callback function in the hold phase.
return &lr->reset_state;
}
-static void legacy_reset_hold(Object *obj)
+static void legacy_reset_hold(Object *obj, ResetType type)
{
LegacyReset *lr = LEGACY_RESET(obj);
- if (device_reset_reason == SHUTDOWN_CAUSE_SNAPSHOT_LOAD &&
- lr->skip_on_snapshot_load) {
+ if (type == RESET_TYPE_SNAPSHOT_LOAD && lr->skip_on_snapshot_load) {
return;
}
lr->func(lr->opaque);
void qemu_devices_reset(ShutdownCause reason)
{
- device_reset_reason = reason;
+ ResetType type = (reason == SHUTDOWN_CAUSE_SNAPSHOT_LOAD) ?
+ RESET_TYPE_SNAPSHOT_LOAD : RESET_TYPE_COLD;
/* Reset the simulation */
- resettable_reset(OBJECT(get_root_reset_container()), RESET_TYPE_COLD);
+ resettable_reset(OBJECT(get_root_reset_container()), type);
}
void resettable_assert_reset(Object *obj, ResetType type)
{
- /* TODO: change this assert when adding support for other reset types */
- assert(type == RESET_TYPE_COLD);
trace_resettable_reset_assert_begin(obj, type);
assert(!enter_phase_in_progress);
void resettable_release_reset(Object *obj, ResetType type)
{
- /* TODO: change this assert when adding support for other reset types */
- assert(type == RESET_TYPE_COLD);
trace_resettable_reset_release_begin(obj, type);
assert(!enter_phase_in_progress);
trace_resettable_transitional_function(obj, obj_typename);
tr_func(obj);
} else if (rc->phases.hold) {
- rc->phases.hold(obj);
+ rc->phases.hold(obj, type);
}
}
trace_resettable_phase_hold_end(obj, obj_typename, s->count);
if (--s->count == 0) {
trace_resettable_phase_exit_exec(obj, obj_typename, !!rc->phases.exit);
if (rc->phases.exit && !resettable_get_tr_func(rc, obj)) {
- rc->phases.exit(obj);
+ rc->phases.exit(obj, type);
}
}
s->exit_phase_in_progress = false;
}
}
-static void virtio_vga_base_reset_hold(Object *obj)
+static void virtio_vga_base_reset_hold(Object *obj, ResetType type)
{
VirtIOVGABaseClass *klass = VIRTIO_VGA_BASE_GET_CLASS(obj);
VirtIOVGABase *vvga = VIRTIO_VGA_BASE(obj);
/* reset virtio-gpu */
if (klass->parent_phases.hold) {
- klass->parent_phases.hold(obj);
+ klass->parent_phases.hold(obj, type);
}
/* reset vga */
dma->enabled_count += level - ch->enable;
if (level)
- dma->ch_enable_mask |= 1 << ch->num;
+ dma->ch_enable_mask |= (uint64_t)1 << ch->num;
else
- dma->ch_enable_mask &= ~(1 << ch->num);
+ dma->ch_enable_mask &= ~((uint64_t)1 << ch->num);
if (level != ch->enable) {
soc_dma_ch_freq_update(dma);
s->regs[NPCM7XX_GPIO_ODSC] = s->reset_odsc;
}
-static void npcm7xx_gpio_hold_reset(Object *obj)
+static void npcm7xx_gpio_hold_reset(Object *obj, ResetType type)
{
NPCM7xxGPIOState *s = NPCM7XX_GPIO(obj);
s->amsel = 0;
}
-static void pl061_hold_reset(Object *obj)
+static void pl061_hold_reset(Object *obj, ResetType type)
{
PL061State *s = PL061(obj);
int i, level;
return extract32(s->otyper, pin, 1) == 0;
}
-static void stm32l4x5_gpio_reset_hold(Object *obj)
+static void stm32l4x5_gpio_reset_hold(Object *obj, ResetType type)
{
Stm32l4x5GpioState *s = STM32L4X5_GPIO(obj);
qemu_mutex_destroy(&vmbus->rx_queue_lock);
}
-static void vmbus_reset_hold(Object *obj)
+static void vmbus_reset_hold(Object *obj, ResetType type)
{
vmbus_deinit(VMBUS(obj));
}
return s->cntr & TWI_CNTR_INT_EN;
}
-static void allwinner_i2c_reset_hold(Object *obj)
+static void allwinner_i2c_reset_hold(Object *obj, ResetType type)
{
AWI2CState *s = AW_I2C(obj);
break;
case TWI_SRST_REG:
if (((value & TWI_SRST_MASK) == 0) && (s->srst & TWI_SRST_MASK)) {
- /* Perform reset */
- allwinner_i2c_reset_hold(OBJECT(s));
+ device_cold_reset(DEVICE(s));
}
s->srst = value & TWI_SRST_MASK;
break;
s->rx_cur = 0;
}
-static void npcm7xx_smbus_hold_reset(Object *obj)
+static void npcm7xx_smbus_hold_reset(Object *obj, ResetType type)
{
NPCM7xxSMBusState *s = NPCM7XX_SMBUS(obj);
}
};
-static void adb_bus_reset_hold(Object *obj)
+static void adb_bus_reset_hold(Object *obj, ResetType type)
{
ADBBusState *adb_bus = ADB_BUS(obj);
}
}
-static void ps2_reset_hold(Object *obj)
+static void ps2_reset_hold(Object *obj, ResetType type)
{
PS2State *s = PS2_DEVICE(obj);
ps2_reset_queue(s);
}
-static void ps2_reset_exit(Object *obj)
+static void ps2_reset_exit(Object *obj, ResetType type)
{
PS2State *s = PS2_DEVICE(obj);
q->cwptr = ccount ? (q->rptr + ccount) & (PS2_BUFFER_SIZE - 1) : -1;
}
-static void ps2_kbd_reset_hold(Object *obj)
+static void ps2_kbd_reset_hold(Object *obj, ResetType type)
{
PS2DeviceClass *ps2dc = PS2_DEVICE_GET_CLASS(obj);
PS2KbdState *s = PS2_KBD_DEVICE(obj);
trace_ps2_kbd_reset(s);
if (ps2dc->parent_phases.hold) {
- ps2dc->parent_phases.hold(obj);
+ ps2dc->parent_phases.hold(obj, type);
}
s->scan_enabled = 1;
s->modifiers = 0;
}
-static void ps2_mouse_reset_hold(Object *obj)
+static void ps2_mouse_reset_hold(Object *obj, ResetType type)
{
PS2DeviceClass *ps2dc = PS2_DEVICE_GET_CLASS(obj);
PS2MouseState *s = PS2_MOUSE_DEVICE(obj);
trace_ps2_mouse_reset(s);
if (ps2dc->parent_phases.hold) {
- ps2dc->parent_phases.hold(obj);
+ ps2dc->parent_phases.hold(obj, type);
}
s->mouse_status = 0;
}
}
-static void arm_gic_common_reset_hold(Object *obj)
+static void arm_gic_common_reset_hold(Object *obj, ResetType type)
{
GICState *s = ARM_GIC_COMMON(obj);
int i, j;
}
}
-static void kvm_arm_gic_reset_hold(Object *obj)
+static void kvm_arm_gic_reset_hold(Object *obj, ResetType type)
{
GICState *s = ARM_GIC_COMMON(obj);
KVMARMGICClass *kgc = KVM_ARM_GIC_GET_CLASS(s);
if (kgc->parent_phases.hold) {
- kgc->parent_phases.hold(obj);
+ kgc->parent_phases.hold(obj, type);
}
if (kvm_arm_gic_can_save_restore(s)) {
#include "hw/intc/arm_gicv3.h"
#include "gicv3_internal.h"
-static bool irqbetter(GICv3CPUState *cs, int irq, uint8_t prio)
+static bool irqbetter(GICv3CPUState *cs, int irq, uint8_t prio, bool nmi)
{
/* Return true if this IRQ at this priority should take
* precedence over the current recorded highest priority
* is the same as this one (a property which the calling code
* relies on).
*/
- if (prio < cs->hppi.prio) {
- return true;
+ if (prio != cs->hppi.prio) {
+ return prio < cs->hppi.prio;
+ }
+
+ /*
+ * The same priority IRQ with non-maskable property should signal to
+ * the CPU as it have the priority higher than the labelled 0x80 or 0x00.
+ */
+ if (nmi != cs->hppi.nmi) {
+ return nmi;
}
+
/* If multiple pending interrupts have the same priority then it is an
* IMPDEF choice which of them to signal to the CPU. We choose to
* signal the one with the lowest interrupt number.
*/
- if (prio == cs->hppi.prio && irq <= cs->hppi.irq) {
+ if (irq <= cs->hppi.irq) {
return true;
}
return false;
return pend;
}
+static bool gicv3_get_priority(GICv3CPUState *cs, bool is_redist, int irq,
+ uint8_t *prio)
+{
+ uint32_t nmi = 0x0;
+
+ if (is_redist) {
+ nmi = extract32(cs->gicr_inmir0, irq, 1);
+ } else {
+ nmi = *gic_bmp_ptr32(cs->gic->nmi, irq);
+ nmi = nmi & (1 << (irq & 0x1f));
+ }
+
+ if (nmi) {
+ /* DS = 0 & Non-secure NMI */
+ if (!(cs->gic->gicd_ctlr & GICD_CTLR_DS) &&
+ ((is_redist && extract32(cs->gicr_igroupr0, irq, 1)) ||
+ (!is_redist && gicv3_gicd_group_test(cs->gic, irq)))) {
+ *prio = 0x80;
+ } else {
+ *prio = 0x0;
+ }
+
+ return true;
+ }
+
+ if (is_redist) {
+ *prio = cs->gicr_ipriorityr[irq];
+ } else {
+ *prio = cs->gic->gicd_ipriority[irq];
+ }
+
+ return false;
+}
+
/* Update the interrupt status after state in a redistributor
* or CPU interface has changed, but don't tell the CPU i/f.
*/
uint8_t prio;
int i;
uint32_t pend;
+ bool nmi = false;
/* Find out which redistributor interrupts are eligible to be
* signaled to the CPU interface.
if (!(pend & (1 << i))) {
continue;
}
- prio = cs->gicr_ipriorityr[i];
- if (irqbetter(cs, i, prio)) {
+ nmi = gicv3_get_priority(cs, true, i, &prio);
+ if (irqbetter(cs, i, prio, nmi)) {
cs->hppi.irq = i;
cs->hppi.prio = prio;
+ cs->hppi.nmi = nmi;
seenbetter = true;
}
}
if ((cs->gicr_ctlr & GICR_CTLR_ENABLE_LPIS) && cs->gic->lpi_enable &&
(cs->gic->gicd_ctlr & GICD_CTLR_EN_GRP1NS) &&
(cs->hpplpi.prio != 0xff)) {
- if (irqbetter(cs, cs->hpplpi.irq, cs->hpplpi.prio)) {
+ if (irqbetter(cs, cs->hpplpi.irq, cs->hpplpi.prio, cs->hpplpi.nmi)) {
cs->hppi.irq = cs->hpplpi.irq;
cs->hppi.prio = cs->hpplpi.prio;
+ cs->hppi.nmi = cs->hpplpi.nmi;
cs->hppi.grp = cs->hpplpi.grp;
seenbetter = true;
}
int i;
uint8_t prio;
uint32_t pend = 0;
+ bool nmi = false;
assert(start >= GIC_INTERNAL);
assert(len > 0);
*/
continue;
}
- prio = s->gicd_ipriority[i];
- if (irqbetter(cs, i, prio)) {
+ nmi = gicv3_get_priority(cs, false, i, &prio);
+ if (irqbetter(cs, i, prio, nmi)) {
cs->hppi.irq = i;
cs->hppi.prio = prio;
+ cs->hppi.nmi = nmi;
cs->seenbetter = true;
}
}
for (i = 0; i < s->num_cpu; i++) {
s->cpu[i].hppi.prio = 0xff;
+ s->cpu[i].hppi.nmi = false;
}
/* Note that we can guarantee that these functions will not
}
};
+static bool gicv3_cpu_nmi_needed(void *opaque)
+{
+ GICv3CPUState *cs = opaque;
+
+ return cs->gic->nmi_support;
+}
+
+static const VMStateDescription vmstate_gicv3_cpu_nmi = {
+ .name = "arm_gicv3_cpu/nmi",
+ .version_id = 1,
+ .minimum_version_id = 1,
+ .needed = gicv3_cpu_nmi_needed,
+ .fields = (const VMStateField[]) {
+ VMSTATE_UINT32(gicr_inmir0, GICv3CPUState),
+ VMSTATE_END_OF_LIST()
+ }
+};
+
static const VMStateDescription vmstate_gicv3_cpu = {
.name = "arm_gicv3_cpu",
.version_id = 1,
&vmstate_gicv3_cpu_virt,
&vmstate_gicv3_cpu_sre_el1,
&vmstate_gicv3_gicv4,
+ &vmstate_gicv3_cpu_nmi,
NULL
}
};
}
};
+static bool gicv3_nmi_needed(void *opaque)
+{
+ GICv3State *cs = opaque;
+
+ return cs->nmi_support;
+}
+
+const VMStateDescription vmstate_gicv3_gicd_nmi = {
+ .name = "arm_gicv3/gicd_nmi",
+ .version_id = 1,
+ .minimum_version_id = 1,
+ .needed = gicv3_nmi_needed,
+ .fields = (const VMStateField[]) {
+ VMSTATE_UINT32_ARRAY(nmi, GICv3State, GICV3_BMP_SIZE),
+ VMSTATE_END_OF_LIST()
+ }
+};
+
static const VMStateDescription vmstate_gicv3 = {
.name = "arm_gicv3",
.version_id = 1,
},
.subsections = (const VMStateDescription * const []) {
&vmstate_gicv3_gicd_no_migration_shift_bug,
+ &vmstate_gicv3_gicd_nmi,
NULL
}
};
for (i = 0; i < s->num_cpu; i++) {
sysbus_init_irq(sbd, &s->cpu[i].parent_vfiq);
}
+ for (i = 0; i < s->num_cpu; i++) {
+ sysbus_init_irq(sbd, &s->cpu[i].parent_nmi);
+ }
+ for (i = 0; i < s->num_cpu; i++) {
+ sysbus_init_irq(sbd, &s->cpu[i].parent_vnmi);
+ }
memory_region_init_io(&s->iomem_dist, OBJECT(s), ops, s,
"gicv3_dist", 0x10000);
g_free(s->redist_region_count);
}
-static void arm_gicv3_common_reset_hold(Object *obj)
+static void arm_gicv3_common_reset_hold(Object *obj, ResetType type)
{
GICv3State *s = ARM_GICV3_COMMON(obj);
int i;
memset(cs->gicr_ipriorityr, 0, sizeof(cs->gicr_ipriorityr));
cs->hppi.prio = 0xff;
+ cs->hppi.nmi = false;
cs->hpplpi.prio = 0xff;
+ cs->hpplpi.nmi = false;
cs->hppvlpi.prio = 0xff;
+ cs->hppvlpi.nmi = false;
/* State in the CPU interface must *not* be reset here, because it
* is part of the CPU's reset domain, not the GIC device's.
DEFINE_PROP_UINT32("num-irq", GICv3State, num_irq, 32),
DEFINE_PROP_UINT32("revision", GICv3State, revision, 3),
DEFINE_PROP_BOOL("has-lpi", GICv3State, lpi_enable, 0),
+ DEFINE_PROP_BOOL("has-nmi", GICv3State, nmi_support, 0),
DEFINE_PROP_BOOL("has-security-extensions", GICv3State, security_extn, 0),
/*
* Compatibility property: force 8 bits of physical priority, even
#include "hw/irq.h"
#include "cpu.h"
#include "target/arm/cpregs.h"
+#include "target/arm/cpu-features.h"
#include "sysemu/tcg.h"
#include "sysemu/qtest.h"
int i;
int aprmax = ich_num_aprs(cs);
+ if (cs->ich_apr[GICV3_G1NS][0] & ICV_AP1R_EL1_NMI) {
+ return 0x0;
+ }
+
for (i = 0; i < aprmax; i++) {
uint32_t apr = cs->ich_apr[GICV3_G0][i] |
cs->ich_apr[GICV3_G1NS][i];
* correct behaviour.
*/
int prio = 0xff;
+ bool nmi = false;
if (!(cs->ich_vmcr_el2 & (ICH_VMCR_EL2_VENG0 | ICH_VMCR_EL2_VENG1))) {
/* Both groups disabled, definitely nothing to do */
for (i = 0; i < cs->num_list_regs; i++) {
uint64_t lr = cs->ich_lr_el2[i];
+ bool thisnmi;
int thisprio;
if (ich_lr_state(lr) != ICH_LR_EL2_STATE_PENDING) {
}
}
+ thisnmi = lr & ICH_LR_EL2_NMI;
thisprio = ich_lr_prio(lr);
- if (thisprio < prio) {
+ if ((thisprio < prio) || ((thisprio == prio) && (thisnmi & (!nmi)))) {
prio = thisprio;
+ nmi = thisnmi;
idx = i;
}
}
* equivalent of these checks.
*/
int grp;
+ bool is_nmi;
uint32_t mask, prio, rprio, vpmr;
if (!(cs->ich_hcr_el2 & ICH_HCR_EL2_EN)) {
*/
prio = ich_lr_prio(lr);
+ is_nmi = lr & ICH_LR_EL2_NMI;
vpmr = extract64(cs->ich_vmcr_el2, ICH_VMCR_EL2_VPMR_SHIFT,
ICH_VMCR_EL2_VPMR_LENGTH);
- if (prio >= vpmr) {
+ if (!is_nmi && prio >= vpmr) {
/* Priority mask masks this interrupt */
return false;
}
return true;
}
+ if ((prio & mask) == (rprio & mask) && is_nmi &&
+ !(cs->ich_apr[GICV3_G1NS][0] & ICV_AP1R_EL1_NMI)) {
+ return true;
+ }
+
return false;
}
int idx;
int irqlevel = 0;
int fiqlevel = 0;
+ int nmilevel = 0;
idx = hppvi_index(cs);
trace_gicv3_cpuif_virt_update(gicv3_redist_affid(cs), idx,
uint64_t lr = cs->ich_lr_el2[idx];
if (icv_hppi_can_preempt(cs, lr)) {
- /* Virtual interrupts are simple: G0 are always FIQ, and G1 IRQ */
+ /*
+ * Virtual interrupts are simple: G0 are always FIQ, and G1 are
+ * IRQ or NMI which depends on the ICH_LR<n>_EL2.NMI to have
+ * non-maskable property.
+ */
if (lr & ICH_LR_EL2_GROUP) {
- irqlevel = 1;
+ if (lr & ICH_LR_EL2_NMI) {
+ nmilevel = 1;
+ } else {
+ irqlevel = 1;
+ }
} else {
fiqlevel = 1;
}
trace_gicv3_cpuif_virt_set_irqs(gicv3_redist_affid(cs), fiqlevel, irqlevel);
qemu_set_irq(cs->parent_vfiq, fiqlevel);
qemu_set_irq(cs->parent_virq, irqlevel);
+ qemu_set_irq(cs->parent_vnmi, nmilevel);
}
static void gicv3_cpuif_virt_update(GICv3CPUState *cs)
trace_gicv3_icv_ap_write(ri->crm & 1, regno, gicv3_redist_affid(cs), value);
- cs->ich_apr[grp][regno] = value & 0xFFFFFFFFU;
+ if (cs->nmi_support) {
+ cs->ich_apr[grp][regno] = value & (0xFFFFFFFFU | ICV_AP1R_EL1_NMI);
+ } else {
+ cs->ich_apr[grp][regno] = value & 0xFFFFFFFFU;
+ }
gicv3_cpuif_virt_irq_fiq_update(cs);
return;
static uint64_t icv_rpr_read(CPUARMState *env, const ARMCPRegInfo *ri)
{
GICv3CPUState *cs = icc_cs_from_env(env);
- int prio = ich_highest_active_virt_prio(cs);
+ uint64_t prio = ich_highest_active_virt_prio(cs);
+
+ if (cs->ich_apr[GICV3_G1NS][0] & ICV_AP1R_EL1_NMI) {
+ prio |= ICV_RPR_EL1_NMI;
+ }
trace_gicv3_icv_rpr_read(gicv3_redist_affid(cs), prio);
return prio;
*/
uint32_t mask = icv_gprio_mask(cs, grp);
int prio = ich_lr_prio(cs->ich_lr_el2[idx]) & mask;
+ bool nmi = cs->ich_lr_el2[idx] & ICH_LR_EL2_NMI;
int aprbit = prio >> (8 - cs->vprebits);
int regno = aprbit / 32;
int regbit = aprbit % 32;
cs->ich_lr_el2[idx] &= ~ICH_LR_EL2_STATE_PENDING_BIT;
cs->ich_lr_el2[idx] |= ICH_LR_EL2_STATE_ACTIVE_BIT;
- cs->ich_apr[grp][regno] |= (1 << regbit);
+
+ if (nmi) {
+ cs->ich_apr[grp][regno] |= ICV_AP1R_EL1_NMI;
+ } else {
+ cs->ich_apr[grp][regno] |= (1 << regbit);
+ }
}
static void icv_activate_vlpi(GICv3CPUState *cs)
int grp = ri->crm == 8 ? GICV3_G0 : GICV3_G1NS;
int idx = hppvi_index(cs);
uint64_t intid = INTID_SPURIOUS;
+ int el = arm_current_el(env);
if (idx == HPPVI_INDEX_VLPI) {
if (cs->hppvlpi.grp == grp && icv_hppvlpi_can_preempt(cs)) {
} else if (idx >= 0) {
uint64_t lr = cs->ich_lr_el2[idx];
int thisgrp = (lr & ICH_LR_EL2_GROUP) ? GICV3_G1NS : GICV3_G0;
+ bool nmi = env->cp15.sctlr_el[el] & SCTLR_NMI && lr & ICH_LR_EL2_NMI;
if (thisgrp == grp && icv_hppi_can_preempt(cs, lr)) {
intid = ich_lr_vintid(lr);
if (!gicv3_intid_is_special(intid)) {
- icv_activate_irq(cs, idx, grp);
+ if (!nmi) {
+ icv_activate_irq(cs, idx, grp);
+ } else {
+ intid = INTID_NMI;
+ }
} else {
/* Interrupt goes from Pending to Invalid */
cs->ich_lr_el2[idx] &= ~ICH_LR_EL2_STATE_PENDING_BIT;
return intid;
}
+static uint64_t icv_nmiar1_read(CPUARMState *env, const ARMCPRegInfo *ri)
+{
+ GICv3CPUState *cs = icc_cs_from_env(env);
+ int idx = hppvi_index(cs);
+ uint64_t intid = INTID_SPURIOUS;
+
+ if (idx >= 0 && idx != HPPVI_INDEX_VLPI) {
+ uint64_t lr = cs->ich_lr_el2[idx];
+ int thisgrp = (lr & ICH_LR_EL2_GROUP) ? GICV3_G1NS : GICV3_G0;
+
+ if ((thisgrp == GICV3_G1NS) && icv_hppi_can_preempt(cs, lr)) {
+ intid = ich_lr_vintid(lr);
+ if (!gicv3_intid_is_special(intid)) {
+ if (lr & ICH_LR_EL2_NMI) {
+ icv_activate_irq(cs, idx, GICV3_G1NS);
+ } else {
+ intid = INTID_SPURIOUS;
+ }
+ } else {
+ /* Interrupt goes from Pending to Invalid */
+ cs->ich_lr_el2[idx] &= ~ICH_LR_EL2_STATE_PENDING_BIT;
+ /*
+ * We will now return the (bogus) ID from the list register,
+ * as per the pseudocode.
+ */
+ }
+ }
+ }
+
+ trace_gicv3_icv_nmiar1_read(gicv3_redist_affid(cs), intid);
+
+ gicv3_cpuif_virt_update(cs);
+
+ return intid;
+}
+
static uint32_t icc_fullprio_mask(GICv3CPUState *cs)
{
/*
*/
int i;
+ if (cs->nmi_support) {
+ /*
+ * If an NMI is active this takes precedence over anything else
+ * for priority purposes; the NMI bit is only in the AP1R0 bit.
+ * We return here the effective priority of the NMI, which is
+ * either 0x0 or 0x80. Callers will need to check NMI again for
+ * purposes of either setting the RPR register bits or for
+ * prioritization of NMI vs non-NMI.
+ */
+ if (cs->icc_apr[GICV3_G1][0] & ICC_AP1R_EL1_NMI) {
+ return 0;
+ }
+ if (cs->icc_apr[GICV3_G1NS][0] & ICC_AP1R_EL1_NMI) {
+ return (cs->gic->gicd_ctlr & GICD_CTLR_DS) ? 0 : 0x80;
+ }
+ }
+
for (i = 0; i < icc_num_aprs(cs); i++) {
uint32_t apr = cs->icc_apr[GICV3_G0][i] |
cs->icc_apr[GICV3_G1][i] | cs->icc_apr[GICV3_G1NS][i];
*/
int rprio;
uint32_t mask;
+ ARMCPU *cpu = ARM_CPU(cs->cpu);
+ CPUARMState *env = &cpu->env;
if (icc_no_enabled_hppi(cs)) {
return false;
}
- if (cs->hppi.prio >= cs->icc_pmr_el1) {
+ if (cs->hppi.nmi) {
+ if (!(cs->gic->gicd_ctlr & GICD_CTLR_DS) &&
+ cs->hppi.grp == GICV3_G1NS) {
+ if (cs->icc_pmr_el1 < 0x80) {
+ return false;
+ }
+ if (arm_is_secure(env) && cs->icc_pmr_el1 == 0x80) {
+ return false;
+ }
+ }
+ } else if (cs->hppi.prio >= cs->icc_pmr_el1) {
/* Priority mask masks this interrupt */
return false;
}
return true;
}
+ if (cs->hppi.nmi && (cs->hppi.prio & mask) == (rprio & mask)) {
+ if (!(cs->icc_apr[cs->hppi.grp][0] & ICC_AP1R_EL1_NMI)) {
+ return true;
+ }
+ }
+
return false;
}
/* Tell the CPU about its highest priority pending interrupt */
int irqlevel = 0;
int fiqlevel = 0;
+ int nmilevel = 0;
ARMCPU *cpu = ARM_CPU(cs->cpu);
CPUARMState *env = &cpu->env;
if (isfiq) {
fiqlevel = 1;
+ } else if (cs->hppi.nmi) {
+ nmilevel = 1;
} else {
irqlevel = 1;
}
qemu_set_irq(cs->parent_fiq, fiqlevel);
qemu_set_irq(cs->parent_irq, irqlevel);
+ qemu_set_irq(cs->parent_nmi, nmilevel);
}
static uint64_t icc_pmr_read(CPUARMState *env, const ARMCPRegInfo *ri)
int aprbit = prio >> (8 - cs->prebits);
int regno = aprbit / 32;
int regbit = aprbit % 32;
+ bool nmi = cs->hppi.nmi;
- cs->icc_apr[cs->hppi.grp][regno] |= (1 << regbit);
+ if (nmi) {
+ cs->icc_apr[cs->hppi.grp][regno] |= ICC_AP1R_EL1_NMI;
+ } else {
+ cs->icc_apr[cs->hppi.grp][regno] |= (1 << regbit);
+ }
if (irq < GIC_INTERNAL) {
cs->gicr_iactiver0 = deposit32(cs->gicr_iactiver0, irq, 1, 1);
static uint64_t icc_iar1_read(CPUARMState *env, const ARMCPRegInfo *ri)
{
GICv3CPUState *cs = icc_cs_from_env(env);
+ int el = arm_current_el(env);
uint64_t intid;
if (icv_access(env, HCR_IMO)) {
}
if (!gicv3_intid_is_special(intid)) {
- icc_activate_irq(cs, intid);
+ if (cs->hppi.nmi && env->cp15.sctlr_el[el] & SCTLR_NMI) {
+ intid = INTID_NMI;
+ } else {
+ icc_activate_irq(cs, intid);
+ }
}
trace_gicv3_icc_iar1_read(gicv3_redist_affid(cs), intid);
return intid;
}
+static uint64_t icc_nmiar1_read(CPUARMState *env, const ARMCPRegInfo *ri)
+{
+ GICv3CPUState *cs = icc_cs_from_env(env);
+ uint64_t intid;
+
+ if (icv_access(env, HCR_IMO)) {
+ return icv_nmiar1_read(env, ri);
+ }
+
+ if (!icc_hppi_can_preempt(cs)) {
+ intid = INTID_SPURIOUS;
+ } else {
+ intid = icc_hppir1_value(cs, env);
+ }
+
+ if (!gicv3_intid_is_special(intid)) {
+ if (!cs->hppi.nmi) {
+ intid = INTID_SPURIOUS;
+ } else {
+ icc_activate_irq(cs, intid);
+ }
+ }
+
+ trace_gicv3_icc_nmiar1_read(gicv3_redist_affid(cs), intid);
+ return intid;
+}
+
static void icc_drop_prio(GICv3CPUState *cs, int grp)
{
/* Drop the priority of the currently active interrupt in
if (!*papr) {
continue;
}
+
+ if (i == 0 && cs->nmi_support && (*papr & ICC_AP1R_EL1_NMI)) {
+ *papr &= (~ICC_AP1R_EL1_NMI);
+ break;
+ }
+
/* Clear the lowest set bit */
*papr &= *papr - 1;
break;
*/
int i;
+ if (cs->nmi_support) {
+ if (cs->icc_apr[GICV3_G1][0] & ICC_AP1R_EL1_NMI) {
+ return GICV3_G1;
+ }
+ if (cs->icc_apr[GICV3_G1NS][0] & ICC_AP1R_EL1_NMI) {
+ return GICV3_G1NS;
+ }
+ }
+
for (i = 0; i < ARRAY_SIZE(cs->icc_apr[0]); i++) {
int g0ctz = ctz32(cs->icc_apr[GICV3_G0][i]);
int g1ctz = ctz32(cs->icc_apr[GICV3_G1][i]);
ICH_HCR_EL2_EOICOUNT_LENGTH, eoicount + 1);
}
-static int icv_drop_prio(GICv3CPUState *cs)
+static int icv_drop_prio(GICv3CPUState *cs, bool *nmi)
{
/* Drop the priority of the currently active virtual interrupt
* (favouring group 0 if there is a set active bit at
continue;
}
+ if (i == 0 && cs->nmi_support && (*papr1 & ICV_AP1R_EL1_NMI)) {
+ *papr1 &= (~ICV_AP1R_EL1_NMI);
+ *nmi = true;
+ return 0xff;
+ }
+
/* We can't just use the bit-twiddling hack icc_drop_prio() does
* because we need to return the bit number we cleared so
* it can be compared against the list register's priority field.
int irq = value & 0xffffff;
int grp = ri->crm == 8 ? GICV3_G0 : GICV3_G1NS;
int idx, dropprio;
+ bool nmi = false;
trace_gicv3_icv_eoir_write(ri->crm == 8 ? 0 : 1,
gicv3_redist_affid(cs), value);
* error checks" (because that lets us avoid scanning the AP
* registers twice).
*/
- dropprio = icv_drop_prio(cs);
- if (dropprio == 0xff) {
+ dropprio = icv_drop_prio(cs, &nmi);
+ if (dropprio == 0xff && !nmi) {
/* No active interrupt. It is CONSTRAINED UNPREDICTABLE
* whether the list registers are checked in this
* situation; we choose not to.
uint64_t lr = cs->ich_lr_el2[idx];
int thisgrp = (lr & ICH_LR_EL2_GROUP) ? GICV3_G1NS : GICV3_G0;
int lr_gprio = ich_lr_prio(lr) & icv_gprio_mask(cs, grp);
+ bool thisnmi = lr & ICH_LR_EL2_NMI;
- if (thisgrp == grp && lr_gprio == dropprio) {
+ if (thisgrp == grp && (lr_gprio == dropprio || (thisnmi & nmi))) {
if (!icv_eoi_split(env, cs) || irq >= GICV3_LPI_INTID_START) {
/*
* Priority drop and deactivate not split: deactivate irq now.
return;
}
- cs->icc_apr[grp][regno] = value & 0xFFFFFFFFU;
+ if (cs->nmi_support) {
+ cs->icc_apr[grp][regno] = value & (0xFFFFFFFFU | ICC_AP1R_EL1_NMI);
+ } else {
+ cs->icc_apr[grp][regno] = value & 0xFFFFFFFFU;
+ }
gicv3_cpuif_update(cs);
}
static uint64_t icc_rpr_read(CPUARMState *env, const ARMCPRegInfo *ri)
{
GICv3CPUState *cs = icc_cs_from_env(env);
- int prio;
+ uint64_t prio;
if (icv_access(env, HCR_FMO | HCR_IMO)) {
return icv_rpr_read(env, ri);
}
}
+ if (cs->nmi_support) {
+ /* NMI info is reported in the high bits of RPR */
+ if (arm_feature(env, ARM_FEATURE_EL3) && !arm_is_secure(env)) {
+ if (cs->icc_apr[GICV3_G1NS][0] & ICC_AP1R_EL1_NMI) {
+ prio |= ICC_RPR_EL1_NMI;
+ }
+ } else {
+ if (cs->icc_apr[GICV3_G1NS][0] & ICC_AP1R_EL1_NMI) {
+ prio |= ICC_RPR_EL1_NSNMI;
+ }
+ if (cs->icc_apr[GICV3_G1][0] & ICC_AP1R_EL1_NMI) {
+ prio |= ICC_RPR_EL1_NMI;
+ }
+ }
+ }
+
trace_gicv3_icc_rpr_read(gicv3_redist_affid(cs), prio);
return prio;
}
},
};
+static const ARMCPRegInfo gicv3_cpuif_gicv3_nmi_reginfo[] = {
+ { .name = "ICC_NMIAR1_EL1", .state = ARM_CP_STATE_BOTH,
+ .opc0 = 3, .opc1 = 0, .crn = 12, .crm = 9, .opc2 = 5,
+ .type = ARM_CP_IO | ARM_CP_NO_RAW,
+ .access = PL1_R, .accessfn = gicv3_irq_access,
+ .readfn = icc_nmiar1_read,
+ },
+};
+
static uint64_t ich_ap_read(CPUARMState *env, const ARMCPRegInfo *ri)
{
GICv3CPUState *cs = icc_cs_from_env(env);
trace_gicv3_ich_ap_write(ri->crm & 1, regno, gicv3_redist_affid(cs), value);
- cs->ich_apr[grp][regno] = value & 0xFFFFFFFFU;
+ if (cs->nmi_support) {
+ cs->ich_apr[grp][regno] = value & (0xFFFFFFFFU | ICV_AP1R_EL1_NMI);
+ } else {
+ cs->ich_apr[grp][regno] = value & 0xFFFFFFFFU;
+ }
gicv3_cpuif_virt_irq_fiq_update(cs);
}
8 - cs->vpribits, 0);
}
+ /* Enforce RES0 bit in NMI field when FEAT_GICv3_NMI is not implemented */
+ if (!cs->nmi_support) {
+ value &= ~ICH_LR_EL2_NMI;
+ }
+
cs->ich_lr_el2[regno] = value;
gicv3_cpuif_virt_update(cs);
}
*/
define_arm_cp_regs(cpu, gicv3_cpuif_reginfo);
+ /*
+ * If the CPU implements FEAT_NMI and FEAT_GICv3 it must also
+ * implement FEAT_GICv3_NMI, which is the CPU interface part
+ * of NMI support. This is distinct from whether the GIC proper
+ * (redistributors and distributor) have NMI support. In QEMU
+ * that is a property of the GIC device in s->nmi_support;
+ * cs->nmi_support indicates the CPU interface's support.
+ */
+ if (cpu_isar_feature(aa64_nmi, cpu)) {
+ cs->nmi_support = true;
+ define_arm_cp_regs(cpu, gicv3_cpuif_gicv3_nmi_reginfo);
+ }
+
/*
* The CPU implementation specifies the number of supported
* bits of physical priority. For backwards compatibility
return extract32(s->gicd_nsacr[irq / 16], (irq % 16) * 2, 2);
}
+static void gicd_write_bitmap_reg(GICv3State *s, MemTxAttrs attrs,
+ uint32_t *bmp, maskfn *maskfn,
+ int offset, uint32_t val)
+{
+ /*
+ * Helper routine to implement writing to a "set" register
+ * (GICD_INMIR, etc).
+ * Semantics implemented here:
+ * RAZ/WI for SGIs, PPIs, unimplemented IRQs
+ * Bits corresponding to Group 0 or Secure Group 1 interrupts RAZ/WI.
+ * offset should be the offset in bytes of the register from the start
+ * of its group.
+ */
+ int irq = offset * 8;
+
+ if (irq < GIC_INTERNAL || irq >= s->num_irq) {
+ return;
+ }
+ val &= mask_group_and_nsacr(s, attrs, maskfn, irq);
+ *gic_bmp_ptr32(bmp, irq) = val;
+ gicv3_update(s, irq, 32);
+}
+
static void gicd_write_set_bitmap_reg(GICv3State *s, MemTxAttrs attrs,
uint32_t *bmp,
maskfn *maskfn,
* by GICD_TYPER.IDbits)
* MBIS == 0 (message-based SPIs not supported)
* SecurityExtn == 1 if security extns supported
+ * NMI = 1 if Non-maskable interrupt property is supported
* CPUNumber == 0 since for us ARE is always 1
* ITLinesNumber == (((max SPI IntID + 1) / 32) - 1)
*/
bool dvis = s->revision >= 4;
*data = (1 << 25) | (1 << 24) | (dvis << 18) | (sec_extn << 10) |
+ (s->nmi_support << GICD_TYPER_NMI_SHIFT) |
(s->lpi_enable << GICD_TYPER_LPIS_SHIFT) |
(0xf << 19) | itlinesnumber;
return true;
/* RAZ/WI since affinity routing is always enabled */
*data = 0;
return true;
+ case GICD_INMIR ... GICD_INMIR + 0x7f:
+ *data = (!s->nmi_support) ? 0 :
+ gicd_read_bitmap_reg(s, attrs, s->nmi, NULL,
+ offset - GICD_INMIR);
+ return true;
case GICD_IROUTER ... GICD_IROUTER + 0x1fdf:
{
uint64_t r;
case GICD_SPENDSGIR ... GICD_SPENDSGIR + 0xf:
/* RAZ/WI since affinity routing is always enabled */
return true;
+ case GICD_INMIR ... GICD_INMIR + 0x7f:
+ if (s->nmi_support) {
+ gicd_write_bitmap_reg(s, attrs, s->nmi, NULL,
+ offset - GICD_INMIR, value);
+ }
+ return true;
case GICD_IROUTER ... GICD_IROUTER + 0x1fdf:
{
uint64_t r;
}
}
-static void gicv3_its_reset_hold(Object *obj)
+static void gicv3_its_reset_hold(Object *obj, ResetType type)
{
GICv3ITSState *s = ARM_GICV3_ITS_COMMON(obj);
GICv3ITSClass *c = ARM_GICV3_ITS_GET_CLASS(s);
if (c->parent_phases.hold) {
- c->parent_phases.hold(obj);
+ c->parent_phases.hold(obj, type);
}
/* Quiescent bit reset to 1 */
msi_nonbroken = true;
}
-static void gicv3_its_common_reset_hold(Object *obj)
+static void gicv3_its_common_reset_hold(Object *obj, ResetType type)
{
GICv3ITSState *s = ARM_GICV3_ITS_COMMON(obj);
GITS_CTLR, &s->ctlr, true, &error_abort);
}
-static void kvm_arm_its_reset_hold(Object *obj)
+static void kvm_arm_its_reset_hold(Object *obj, ResetType type)
{
GICv3ITSState *s = ARM_GICV3_ITS_COMMON(obj);
KVMARMITSClass *c = KVM_ARM_ITS_GET_CLASS(s);
int i;
if (c->parent_phases.hold) {
- c->parent_phases.hold(obj);
+ c->parent_phases.hold(obj, type);
}
if (kvm_device_check_attr(s->dev_fd, KVM_DEV_ARM_VGIC_GRP_CTRL,
c->icc_ctlr_el1[GICV3_S] = c->icc_ctlr_el1[GICV3_NS];
}
-static void kvm_arm_gicv3_reset_hold(Object *obj)
+static void kvm_arm_gicv3_reset_hold(Object *obj, ResetType type)
{
GICv3State *s = ARM_GICV3_COMMON(obj);
KVMARMGICv3Class *kgc = KVM_ARM_GICV3_GET_CLASS(s);
DPRINTF("Reset\n");
if (kgc->parent_phases.hold) {
- kgc->parent_phases.hold(obj);
+ kgc->parent_phases.hold(obj, type);
}
if (s->migration_blocker) {
return;
}
+ if (s->nmi_support) {
+ error_setg(errp, "NMI is not supported with the in-kernel GIC");
+ return;
+ }
+
gicv3_init_irqs_and_mmio(s, kvm_arm_gicv3_set_irq, NULL);
for (i = 0; i < s->num_cpu; i++) {
return extract32(cs->gicr_nsacr, irq * 2, 2);
}
+static void gicr_write_bitmap_reg(GICv3CPUState *cs, MemTxAttrs attrs,
+ uint32_t *reg, uint32_t val)
+{
+ /* Helper routine to implement writing to a "set" register */
+ val &= mask_group(cs, attrs);
+ *reg = val;
+ gicv3_redist_update(cs);
+}
+
static void gicr_write_set_bitmap_reg(GICv3CPUState *cs, MemTxAttrs attrs,
uint32_t *reg, uint32_t val)
{
((prio == hpp->prio) && (irq <= hpp->irq))) {
hpp->irq = irq;
hpp->prio = prio;
+ hpp->nmi = false;
/* LPIs and vLPIs are always non-secure Grp1 interrupts */
hpp->grp = GICV3_G1NS;
}
int i, bit;
hpp->prio = 0xff;
+ hpp->nmi = false;
for (i = GICV3_LPI_INTID_START / 8; i < pendt_size / 8; i++) {
address_space_read(as, ptbase + i, MEMTXATTRS_UNSPECIFIED, &pend, 1);
if (!FIELD_EX64(cs->gicr_vpendbaser, GICR_VPENDBASER, VALID)) {
cs->hppvlpi.prio = 0xff;
+ cs->hppvlpi.nmi = false;
return;
}
*data = value;
return MEMTX_OK;
}
+ case GICR_INMIR0:
+ *data = cs->gic->nmi_support ?
+ gicr_read_bitmap_reg(cs, attrs, cs->gicr_inmir0) : 0;
+ return MEMTX_OK;
case GICR_ICFGR0:
case GICR_ICFGR1:
{
gicv3_redist_update(cs);
return MEMTX_OK;
}
+ case GICR_INMIR0:
+ if (cs->gic->nmi_support) {
+ gicr_write_bitmap_reg(cs, attrs, &cs->gicr_inmir0, value);
+ }
+ return MEMTX_OK;
+
case GICR_ICFGR0:
/* Register is all RAZ/WI or RAO/WI bits */
return MEMTX_OK;
#define GICD_SGIR 0x0F00
#define GICD_CPENDSGIR 0x0F10
#define GICD_SPENDSGIR 0x0F20
+#define GICD_INMIR 0x0F80
+#define GICD_INMIRnE 0x3B00
#define GICD_IROUTER 0x6000
#define GICD_IDREGS 0xFFD0
#define GICD_CTLR_E1NWF (1U << 7)
#define GICD_CTLR_RWP (1U << 31)
+#define GICD_TYPER_NMI_SHIFT 9
#define GICD_TYPER_LPIS_SHIFT 17
/* 16 bits EventId */
#define GICR_ICFGR1 (GICR_SGI_OFFSET + 0x0C04)
#define GICR_IGRPMODR0 (GICR_SGI_OFFSET + 0x0D00)
#define GICR_NSACR (GICR_SGI_OFFSET + 0x0E00)
+#define GICR_INMIR0 (GICR_SGI_OFFSET + 0x0F80)
/* VLPI redistributor registers, offsets from VLPI_base */
#define GICR_VPROPBASER (GICR_VLPI_OFFSET + 0x70)
#define ICC_CTLR_EL3_A3V (1U << 15)
#define ICC_CTLR_EL3_NDS (1U << 17)
+#define ICC_AP1R_EL1_NMI (1ULL << 63)
+#define ICC_RPR_EL1_NSNMI (1ULL << 62)
+#define ICC_RPR_EL1_NMI (1ULL << 63)
+
#define ICH_VMCR_EL2_VENG0_SHIFT 0
#define ICH_VMCR_EL2_VENG0 (1U << ICH_VMCR_EL2_VENG0_SHIFT)
#define ICH_VMCR_EL2_VENG1_SHIFT 1
#define ICH_LR_EL2_PRIORITY_SHIFT 48
#define ICH_LR_EL2_PRIORITY_LENGTH 8
#define ICH_LR_EL2_PRIORITY_MASK (0xffULL << ICH_LR_EL2_PRIORITY_SHIFT)
+#define ICH_LR_EL2_NMI (1ULL << 59)
#define ICH_LR_EL2_GROUP (1ULL << 60)
#define ICH_LR_EL2_HW (1ULL << 61)
#define ICH_LR_EL2_STATE_SHIFT 62
#define ICH_VTR_EL2_PREBITS_SHIFT 26
#define ICH_VTR_EL2_PRIBITS_SHIFT 29
+#define ICV_AP1R_EL1_NMI (1ULL << 63)
+#define ICV_RPR_EL1_NMI (1ULL << 63)
+
/* ITS Registers */
FIELD(GITS_BASER, SIZE, 0, 8)
/* Special interrupt IDs */
#define INTID_SECURE 1020
#define INTID_NONSECURE 1021
+#define INTID_NMI 1022
#define INTID_SPURIOUS 1023
/* Functions internal to the emulated GICv3 */
gicv3_icc_generate_sgi(uint32_t cpuid, int irq, int irm, uint32_t aff, uint32_t targetlist) "GICv3 CPU i/f 0x%x generating SGI %d IRM %d target affinity 0x%xxx targetlist 0x%x"
gicv3_icc_iar0_read(uint32_t cpu, uint64_t val) "GICv3 ICC_IAR0 read cpu 0x%x value 0x%" PRIx64
gicv3_icc_iar1_read(uint32_t cpu, uint64_t val) "GICv3 ICC_IAR1 read cpu 0x%x value 0x%" PRIx64
+gicv3_icc_nmiar1_read(uint32_t cpu, uint64_t val) "GICv3 ICC_NMIAR1 read cpu 0x%x value 0x%" PRIx64
gicv3_icc_eoir_write(int grp, uint32_t cpu, uint64_t val) "GICv3 ICC_EOIR%d write cpu 0x%x value 0x%" PRIx64
gicv3_icc_hppir0_read(uint32_t cpu, uint64_t val) "GICv3 ICC_HPPIR0 read cpu 0x%x value 0x%" PRIx64
gicv3_icc_hppir1_read(uint32_t cpu, uint64_t val) "GICv3 ICC_HPPIR1 read cpu 0x%x value 0x%" PRIx64
gicv3_icv_hppir_read(int grp, uint32_t cpu, uint64_t val) "GICv3 ICV_HPPIR%d read cpu 0x%x value 0x%" PRIx64
gicv3_icv_dir_write(uint32_t cpu, uint64_t val) "GICv3 ICV_DIR write cpu 0x%x value 0x%" PRIx64
gicv3_icv_iar_read(int grp, uint32_t cpu, uint64_t val) "GICv3 ICV_IAR%d read cpu 0x%x value 0x%" PRIx64
+gicv3_icv_nmiar1_read(uint32_t cpu, uint64_t val) "GICv3 ICV_NMIAR1 read cpu 0x%x value 0x%" PRIx64
gicv3_icv_eoir_write(int grp, uint32_t cpu, uint64_t val) "GICv3 ICV_EOIR%d write cpu 0x%x value 0x%" PRIx64
gicv3_cpuif_virt_update(uint32_t cpuid, int idx, int hppvlpi, int grp, int prio) "GICv3 CPU i/f 0x%x virt HPPI update LR index %d HPPVLPI %d grp %d prio %d"
gicv3_cpuif_virt_set_irqs(uint32_t cpuid, int fiqlevel, int irqlevel) "GICv3 CPU i/f 0x%x virt HPPI update: setting FIQ %d IRQ %d"
irq->saved_priority = 0xff;
}
-static void ics_reset_hold(Object *obj)
+static void ics_reset_hold(Object *obj, ResetType type)
{
ICSState *ics = ICS(obj);
g_autofree uint8_t *flags = g_malloc(ics->nr_irqs);
GLUE_set_irq(s, GLUE_IRQ_IN_NMI, 0);
}
-static void glue_reset_hold(Object *obj)
+static void glue_reset_hold(Object *obj, ResetType type)
{
GLUEState *s = GLUE(obj);
sysbus_init_mmio(sbd, &s->mem_regs);
}
-static void djmemc_reset_hold(Object *obj)
+static void djmemc_reset_hold(Object *obj, ResetType type)
{
DJMEMCState *s = DJMEMC(obj);
.endianness = DEVICE_BIG_ENDIAN,
};
-static void iosb_reset_hold(Object *obj)
+static void iosb_reset_hold(Object *obj, ResetType type)
{
IOSBState *s = IOSB(obj);
}
/* VIA 1 */
-static void mos6522_q800_via1_reset_hold(Object *obj)
+static void mos6522_q800_via1_reset_hold(Object *obj, ResetType type)
{
MOS6522Q800VIA1State *v1s = MOS6522_Q800_VIA1(obj);
MOS6522State *ms = MOS6522(v1s);
ADBBusState *adb_bus = &v1s->adb_bus;
if (mdc->parent_phases.hold) {
- mdc->parent_phases.hold(obj);
+ mdc->parent_phases.hold(obj, type);
}
ms->timers[0].frequency = VIA_TIMER_FREQ;
}
}
-static void mos6522_q800_via2_reset_hold(Object *obj)
+static void mos6522_q800_via2_reset_hold(Object *obj, ResetType type)
{
MOS6522State *ms = MOS6522(obj);
MOS6522DeviceClass *mdc = MOS6522_GET_CLASS(ms);
if (mdc->parent_phases.hold) {
- mdc->parent_phases.hold(obj);
+ mdc->parent_phases.hold(obj, type);
}
ms->timers[0].frequency = VIA_TIMER_FREQ;
cuda_update(cs);
}
-static void mos6522_cuda_reset_hold(Object *obj)
+static void mos6522_cuda_reset_hold(Object *obj, ResetType type)
{
MOS6522State *ms = MOS6522(obj);
MOS6522DeviceClass *mdc = MOS6522_GET_CLASS(ms);
if (mdc->parent_phases.hold) {
- mdc->parent_phases.hold(obj);
+ mdc->parent_phases.hold(obj, type);
}
ms->timers[0].frequency = CUDA_TIMER_FREQ;
pmu_update(ps);
}
-static void mos6522_pmu_reset_hold(Object *obj)
+static void mos6522_pmu_reset_hold(Object *obj, ResetType type)
{
MOS6522State *ms = MOS6522(obj);
MOS6522PMUState *mps = container_of(ms, MOS6522PMUState, parent_obj);
MOS6522DeviceClass *mdc = MOS6522_GET_CLASS(ms);
if (mdc->parent_phases.hold) {
- mdc->parent_phases.hold(obj);
+ mdc->parent_phases.hold(obj, type);
}
ms->timers[0].frequency = VIA_TIMER_FREQ;
}
};
-static void mos6522_reset_hold(Object *obj)
+static void mos6522_reset_hold(Object *obj, ResetType type)
{
MOS6522State *s = MOS6522(obj);
QEMU_BUILD_BUG_ON(sizeof(s->regs) != sizeof(cold_reset_values));
- switch (type) {
- case RESET_TYPE_COLD:
- memcpy(s->regs, cold_reset_values, sizeof(cold_reset_values));
- s->ref_ns = qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL);
- npcm7xx_clk_update_all_clocks(s);
- return;
- }
-
+ memcpy(s->regs, cold_reset_values, sizeof(cold_reset_values));
+ s->ref_ns = qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL);
+ npcm7xx_clk_update_all_clocks(s);
/*
* A small number of registers need to be reset on a core domain reset,
* but no such reset type exists yet.
*/
- qemu_log_mask(LOG_UNIMP, "%s: reset type %d not implemented.",
- __func__, type);
}
static void npcm7xx_clk_init_clock_hierarchy(NPCM7xxCLKState *s)
QEMU_BUILD_BUG_ON(sizeof(s->regs) != sizeof(cold_reset_values));
- switch (type) {
- case RESET_TYPE_COLD:
- memcpy(s->regs, cold_reset_values, sizeof(s->regs));
- s->regs[NPCM7XX_GCR_PWRON] = s->reset_pwron;
- s->regs[NPCM7XX_GCR_MDLR] = s->reset_mdlr;
- s->regs[NPCM7XX_GCR_INTCR3] = s->reset_intcr3;
- break;
- }
+ memcpy(s->regs, cold_reset_values, sizeof(s->regs));
+ s->regs[NPCM7XX_GCR_PWRON] = s->reset_pwron;
+ s->regs[NPCM7XX_GCR_MDLR] = s->reset_mdlr;
+ s->regs[NPCM7XX_GCR_INTCR3] = s->reset_intcr3;
}
static void npcm7xx_gcr_realize(DeviceState *dev, Error **errp)
npcm7xx_mft_reset(s);
}
-static void npcm7xx_mft_hold_reset(Object *obj)
+static void npcm7xx_mft_hold_reset(Object *obj, ResetType type)
{
NPCM7xxMFTState *s = NPCM7XX_MFT(obj);
s->piir = 0x00000000;
}
-static void npcm7xx_pwm_hold_reset(Object *obj)
+static void npcm7xx_pwm_hold_reset(Object *obj, ResetType type)
{
NPCM7xxPWMState *s = NPCM7XX_PWM(obj);
int i;
return valid_mask(bank) & ~exti_romask[bank];
}
-static void stm32l4x5_exti_reset_hold(Object *obj)
+static void stm32l4x5_exti_reset_hold(Object *obj, ResetType type)
{
Stm32l4x5ExtiState *s = STM32L4X5_EXTI(obj);
set_clock_mux_init_info(s, s->id);
}
-static void clock_mux_reset_hold(Object *obj)
+static void clock_mux_reset_hold(Object *obj, ResetType type)
{
RccClockMuxState *s = RCC_CLOCK_MUX(obj);
clock_mux_update(s, true);
}
-static void clock_mux_reset_exit(Object *obj)
+static void clock_mux_reset_exit(Object *obj, ResetType type)
{
RccClockMuxState *s = RCC_CLOCK_MUX(obj);
clock_mux_update(s, false);
set_pll_init_info(s, s->id);
}
-static void pll_reset_hold(Object *obj)
+static void pll_reset_hold(Object *obj, ResetType type)
{
RccPllState *s = RCC_PLL(obj);
pll_update(s, true);
}
-static void pll_reset_exit(Object *obj)
+static void pll_reset_exit(Object *obj, ResetType type)
{
RccPllState *s = RCC_PLL(obj);
pll_update(s, false);
rcc_update_irq(s);
}
-static void stm32l4x5_rcc_reset_hold(Object *obj)
+static void stm32l4x5_rcc_reset_hold(Object *obj, ResetType type)
{
Stm32l4x5RccState *s = STM32L4X5_RCC(obj);
s->cr = 0x00000063;
#define NUM_LINES_PER_EXTICR_REG 4
-static void stm32l4x5_syscfg_hold_reset(Object *obj)
+static void stm32l4x5_syscfg_hold_reset(Object *obj, ResetType type)
{
Stm32l4x5SyscfgState *s = STM32L4X5_SYSCFG(obj);
}
}
-static void cframe_reg_reset_hold(Object *obj)
+static void cframe_reg_reset_hold(Object *obj, ResetType type)
{
XlnxVersalCFrameReg *s = XLNX_VERSAL_CFRAME_REG(obj);
}
}
-static void crl_reset_hold(Object *obj)
+static void crl_reset_hold(Object *obj, ResetType type)
{
XlnxVersalCRL *s = XLNX_VERSAL_CRL(obj);
}
}
-static void xlnx_versal_pmc_iou_slcr_reset_hold(Object *obj)
+static void xlnx_versal_pmc_iou_slcr_reset_hold(Object *obj, ResetType type)
{
XlnxVersalPmcIouSlcr *s = XILINX_VERSAL_PMC_IOU_SLCR(obj);
s->prng = NULL;
}
-static void trng_reset_hold(Object *obj)
+static void trng_reset_hold(Object *obj, ResetType type)
{
trng_reset(XLNX_VERSAL_TRNG(obj));
}
ARRAY_FIELD_DP32(s->regs, XRAM_IMP, SIZE, s->cfg.encoded_size);
}
-static void xram_ctrl_reset_hold(Object *obj)
+static void xram_ctrl_reset_hold(Object *obj, ResetType type)
{
XlnxXramCtrl *s = XLNX_XRAM_CTRL(obj);
s->cpu_in_wfi = 0;
}
-static void zynqmp_apu_reset_hold(Object *obj)
+static void zynqmp_apu_reset_hold(Object *obj, ResetType type)
{
XlnxZynqMPAPUCtrl *s = XLNX_ZYNQMP_APU_CTRL(obj);
}
}
-static void crf_reset_hold(Object *obj)
+static void crf_reset_hold(Object *obj, ResetType type)
{
XlnxZynqMPCRF *s = XLNX_ZYNQMP_CRF(obj);
ir_update_irq(s);
s->regs[R_DDRIOB + 12] = 0x00000021;
}
-static void zynq_slcr_reset_hold(Object *obj)
+static void zynq_slcr_reset_hold(Object *obj, ResetType type)
{
ZynqSLCRState *s = ZYNQ_SLCR(obj);
zynq_slcr_propagate_clocks(s);
}
-static void zynq_slcr_reset_exit(Object *obj)
+static void zynq_slcr_reset_exit(Object *obj, ResetType type)
{
ZynqSLCRState *s = ZYNQ_SLCR(obj);
ptimer_transaction_commit(s->can_timer);
}
-static void xlnx_zynqmp_can_reset_hold(Object *obj)
+static void xlnx_zynqmp_can_reset_hold(Object *obj, ResetType type)
{
XlnxZynqMPCANState *s = XLNX_ZYNQMP_CAN(obj);
unsigned int i;
return chkflag(VET);
}
-static void e1000_reset_hold(Object *obj)
+static void e1000_reset_hold(Object *obj, ResetType type)
{
E1000State *d = E1000(obj);
E1000BaseClass *edc = E1000_GET_CLASS(d);
msi_uninit(pci_dev);
}
-static void e1000e_qdev_reset_hold(Object *obj)
+static void e1000e_qdev_reset_hold(Object *obj, ResetType type)
{
E1000EState *s = E1000E(obj);
msi_uninit(pci_dev);
}
-static void igb_qdev_reset_hold(Object *obj)
+static void igb_qdev_reset_hold(Object *obj, ResetType type)
{
IGBState *s = IGB(obj);
pcie_ari_init(dev, 0x150);
}
-static void igbvf_qdev_reset_hold(Object *obj)
+static void igbvf_qdev_reset_hold(Object *obj, ResetType type)
{
PCIDevice *vf = PCI_DEVICE(obj);
}
};
-static void bbram_ctrl_reset_hold(Object *obj)
+static void bbram_ctrl_reset_hold(Object *obj, ResetType type)
{
XlnxBBRam *s = XLNX_BBRAM(obj);
unsigned int i;
register_reset(reg);
}
-static void efuse_ctrl_reset_hold(Object *obj)
+static void efuse_ctrl_reset_hold(Object *obj, ResetType type)
{
XlnxVersalEFuseCtrl *s = XLNX_VERSAL_EFUSE_CTRL(obj);
unsigned int i;
register_reset(reg);
}
-static void zynqmp_efuse_reset_hold(Object *obj)
+static void zynqmp_efuse_reset_hold(Object *obj, ResetType type)
{
XlnxZynqMPEFuse *s = XLNX_ZYNQMP_EFUSE(obj);
unsigned int i;
component_bar);
}
-static void cxl_rp_reset_hold(Object *obj)
+static void cxl_rp_reset_hold(Object *obj, ResetType type)
{
PCIERootPortClass *rpc = PCIE_ROOT_PORT_GET_CLASS(obj);
CXLRootPort *crp = CXL_ROOT_PORT(obj);
if (rpc->parent_phases.hold) {
- rpc->parent_phases.hold(obj);
+ rpc->parent_phases.hold(obj, type);
}
latch_registers(crp);
pcie_aer_root_write_config(d, address, val, len, root_cmd);
}
-static void rp_reset_hold(Object *obj)
+static void rp_reset_hold(Object *obj, ResetType type)
{
PCIDevice *d = PCI_DEVICE(obj);
DeviceState *qdev = DEVICE(obj);
}
}
-static void bonito_reset_hold(Object *obj)
+static void bonito_reset_hold(Object *obj, ResetType type)
{
PCIBonitoState *s = PCI_BONITO(obj);
uint32_t val = 0;
dc->user_creatable = true;
}
-static void pnv_phb_root_port_reset_hold(Object *obj)
+static void pnv_phb_root_port_reset_hold(Object *obj, ResetType type)
{
PCIERootPortClass *rpc = PCIE_ROOT_PORT_GET_CLASS(obj);
PnvPHBRootPort *phb_rp = PNV_PHB_ROOT_PORT(obj);
uint8_t *conf = d->config;
if (rpc->parent_phases.hold) {
- rpc->parent_phases.hold(obj);
+ rpc->parent_phases.hold(obj, type);
}
if (phb_rp->version == 3) {
}
}
-static void phb3_msi_reset_hold(Object *obj)
+static void phb3_msi_reset_hold(Object *obj, ResetType type)
{
Phb3MsiState *msi = PHB3_MSI(obj);
ICSStateClass *icsc = ICS_GET_CLASS(obj);
if (icsc->parent_phases.hold) {
- icsc->parent_phases.hold(obj);
+ icsc->parent_phases.hold(obj, type);
}
memset(msi->rba, 0, sizeof(msi->rba));
static char *pcibus_get_dev_path(DeviceState *dev);
static char *pcibus_get_fw_dev_path(DeviceState *dev);
-static void pcibus_reset_hold(Object *obj);
+static void pcibus_reset_hold(Object *obj, ResetType type);
static bool pcie_has_upstream_port(PCIDevice *dev);
static Property pci_props[] = {
* Called via bus_cold_reset on RST# assert, after the devices
* have been reset device_cold_reset-ed already.
*/
-static void pcibus_reset_hold(Object *obj)
+static void pcibus_reset_hold(Object *obj, ResetType type)
{
PCIBus *bus = PCI_BUS(obj);
int i;
}
}
-static void rtc_reset_hold(Object *obj)
+static void rtc_reset_hold(Object *obj, ResetType type)
{
MC146818RtcState *s = MC146818_RTC(obj);
qdev_unrealize(dev);
}
-static void virtual_css_bus_reset_hold(Object *obj)
+static void virtual_css_bus_reset_hold(Object *obj, ResetType type)
{
/* This should actually be modelled via the generic css */
css_reset();
static const uint8_t adm1266_ic_device_rev[] = {0x08, 0x01, 0x08, 0x07, 0x0,
0x0, 0x07, 0x41, 0x30};
-static void adm1266_exit_reset(Object *obj)
+static void adm1266_exit_reset(Object *obj, ResetType type)
{
ADM1266State *s = ADM1266(obj);
PMBusDevice *pmdev = PMBUS_DEVICE(obj);
return pmbus_direct_mode2data(c, value);
}
-static void adm1272_exit_reset(Object *obj)
+static void adm1272_exit_reset(Object *obj, ResetType type)
{
ADM1272State *s = ADM1272(obj);
PMBusDevice *pmdev = PMBUS_DEVICE(obj);
break;
case ADM1272_MFR_POWER_CYCLE:
- adm1272_exit_reset((Object *)s);
+ device_cold_reset(DEVICE(s));
break;
case ADM1272_HYSTERESIS_LOW:
pmbus_check_limits(pmdev);
}
-static void isl_pmbus_vr_exit_reset(Object *obj)
+static void isl_pmbus_vr_exit_reset(Object *obj, ResetType type)
{
PMBusDevice *pmdev = PMBUS_DEVICE(obj);
}
/* The raa228000 uses different direct mode coefficients from most isl devices */
-static void raa228000_exit_reset(Object *obj)
+static void raa228000_exit_reset(Object *obj, ResetType type)
{
PMBusDevice *pmdev = PMBUS_DEVICE(obj);
- isl_pmbus_vr_exit_reset(obj);
+ isl_pmbus_vr_exit_reset(obj, type);
pmdev->pages[0].read_iout = 0;
pmdev->pages[0].read_pout = 0;
pmdev->pages[0].read_temperature_3 = 0;
}
-static void isl69259_exit_reset(Object *obj)
+static void isl69259_exit_reset(Object *obj, ResetType type)
{
ISLState *s = ISL69260(obj);
static const uint8_t ic_device_id[] = {0x04, 0x00, 0x81, 0xD2, 0x49, 0x3c};
g_assert(sizeof(ic_device_id) <= sizeof(s->ic_device_id));
- isl_pmbus_vr_exit_reset(obj);
+ isl_pmbus_vr_exit_reset(obj, type);
s->ic_device_id_len = sizeof(ic_device_id);
memcpy(s->ic_device_id, ic_device_id, sizeof(ic_device_id));
return 0;
}
-static void max31785_exit_reset(Object *obj)
+static void max31785_exit_reset(Object *obj, ResetType type)
{
PMBusDevice *pmdev = PMBUS_DEVICE(obj);
MAX31785State *s = MAX31785(obj);
return s;
}
-static void max34451_exit_reset(Object *obj)
+static void max34451_exit_reset(Object *obj, ResetType type)
{
PMBusDevice *pmdev = PMBUS_DEVICE(obj);
MAX34451State *s = MAX34451(obj);
s->regs[NPCM7XX_FIU_CFG] = 0x0000000b;
}
-static void npcm7xx_fiu_hold_reset(Object *obj)
+static void npcm7xx_fiu_hold_reset(Object *obj, ResetType type)
{
NPCM7xxFIUState *s = NPCM7XX_FIU(obj);
int i;
t->rw_intr_mask = 0;
}
-static void etraxfs_timer_reset_hold(Object *obj)
+static void etraxfs_timer_reset_hold(Object *obj, ResetType type)
{
ETRAXTimerState *t = ETRAX_TIMER(obj);
}
}
-static void npcm7xx_timer_hold_reset(Object *obj)
+static void npcm7xx_timer_hold_reset(Object *obj, ResetType type)
{
NPCM7xxTimerCtrlState *s = NPCM7XX_TIMER(obj);
int i;
}
}
-static void dwc2_reset_hold(Object *obj)
+static void dwc2_reset_hold(Object *obj, ResetType type)
{
DWC2Class *c = DWC2_USB_GET_CLASS(obj);
DWC2State *s = DWC2_USB(obj);
trace_usb_dwc2_reset_hold();
if (c->parent_phases.hold) {
- c->parent_phases.hold(obj);
+ c->parent_phases.hold(obj, type);
}
dwc2_update_irq(s);
}
-static void dwc2_reset_exit(Object *obj)
+static void dwc2_reset_exit(Object *obj, ResetType type)
{
DWC2Class *c = DWC2_USB_GET_CLASS(obj);
DWC2State *s = DWC2_USB(obj);
trace_usb_dwc2_reset_exit();
if (c->parent_phases.exit) {
- c->parent_phases.exit(obj);
+ c->parent_phases.exit(obj, type);
}
s->hprt0 = HPRT0_PWR;
}
}
-static void usb2_ctrl_regs_reset_hold(Object *obj)
+static void usb2_ctrl_regs_reset_hold(Object *obj, ResetType type)
{
VersalUsb2CtrlRegs *s = XILINX_VERSAL_USB2_CTRL_REGS(obj);
}
}
-static void virtio_pci_bus_reset_hold(Object *obj)
+static void virtio_pci_bus_reset_hold(Object *obj, ResetType type)
{
PCIDevice *dev = PCI_DEVICE(obj);
DeviceState *qdev = DEVICE(obj);
#include "hw/misc/stm32l4x5_exti.h"
#include "hw/misc/stm32l4x5_rcc.h"
#include "hw/gpio/stm32l4x5_gpio.h"
+#include "hw/char/stm32l4x5_usart.h"
#include "qom/object.h"
#define TYPE_STM32L4X5_SOC "stm32l4x5-soc"
#define NUM_EXTI_OR_GATES 4
+#define STM_NUM_USARTS 3
+#define STM_NUM_UARTS 2
+
struct Stm32l4x5SocState {
SysBusDevice parent_obj;
Stm32l4x5SyscfgState syscfg;
Stm32l4x5RccState rcc;
Stm32l4x5GpioState gpio[NUM_GPIOS];
+ Stm32l4x5UsartBaseState usart[STM_NUM_USARTS];
+ Stm32l4x5UsartBaseState uart[STM_NUM_UARTS];
+ Stm32l4x5UsartBaseState lpuart;
MemoryRegion sram1;
MemoryRegion sram2;
--- /dev/null
+/*
+ * STM32L4X5 USART (Universal Synchronous Asynchronous Receiver Transmitter)
+ *
+ * Copyright (c) 2023 Arnaud Minier <arnaud.minier@telecom-paris.fr>
+ * Copyright (c) 2023 Inès Varhol <ines.varhol@telecom-paris.fr>
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ *
+ * This work is licensed under the terms of the GNU GPL, version 2 or later.
+ * See the COPYING file in the top-level directory.
+ *
+ * The STM32L4X5 USART is heavily inspired by the stm32f2xx_usart
+ * by Alistair Francis.
+ * The reference used is the STMicroElectronics RM0351 Reference manual
+ * for STM32L4x5 and STM32L4x6 advanced Arm ® -based 32-bit MCUs.
+ */
+
+#ifndef HW_STM32L4X5_USART_H
+#define HW_STM32L4X5_USART_H
+
+#include "hw/sysbus.h"
+#include "chardev/char-fe.h"
+#include "qom/object.h"
+
+#define TYPE_STM32L4X5_USART_BASE "stm32l4x5-usart-base"
+#define TYPE_STM32L4X5_USART "stm32l4x5-usart"
+#define TYPE_STM32L4X5_UART "stm32l4x5-uart"
+#define TYPE_STM32L4X5_LPUART "stm32l4x5-lpuart"
+OBJECT_DECLARE_TYPE(Stm32l4x5UsartBaseState, Stm32l4x5UsartBaseClass,
+ STM32L4X5_USART_BASE)
+
+typedef enum {
+ STM32L4x5_USART,
+ STM32L4x5_UART,
+ STM32L4x5_LPUART,
+} Stm32l4x5UsartType;
+
+struct Stm32l4x5UsartBaseState {
+ SysBusDevice parent_obj;
+
+ MemoryRegion mmio;
+
+ uint32_t cr1;
+ uint32_t cr2;
+ uint32_t cr3;
+ uint32_t brr;
+ uint32_t gtpr;
+ uint32_t rtor;
+ /* rqr is write-only */
+ uint32_t isr;
+ /* icr is a clear register */
+ uint32_t rdr;
+ uint32_t tdr;
+
+ Clock *clk;
+ CharBackend chr;
+ qemu_irq irq;
+ guint watch_tag;
+};
+
+struct Stm32l4x5UsartBaseClass {
+ SysBusDeviceClass parent_class;
+
+ Stm32l4x5UsartType type;
+};
+
+#endif /* HW_STM32L4X5_USART_H */
qemu_irq parent_fiq[GIC_NCPU];
qemu_irq parent_virq[GIC_NCPU];
qemu_irq parent_vfiq[GIC_NCPU];
+ qemu_irq parent_nmi[GIC_NCPU];
+ qemu_irq parent_vnmi[GIC_NCPU];
qemu_irq maintenance_irq[GIC_NCPU];
/* GICD_CTLR; for a GIC with the security extensions the NS banked version
int irq;
uint8_t prio;
int grp;
+ bool nmi;
} PendingIrq;
struct GICv3CPUState {
qemu_irq parent_fiq;
qemu_irq parent_virq;
qemu_irq parent_vfiq;
+ qemu_irq parent_nmi;
+ qemu_irq parent_vnmi;
/* Redistributor */
uint32_t level; /* Current IRQ level */
uint32_t gicr_ienabler0;
uint32_t gicr_ipendr0;
uint32_t gicr_iactiver0;
+ uint32_t gicr_inmir0;
uint32_t edge_trigger; /* ICFGR0 and ICFGR1 even bits */
uint32_t gicr_igrpmodr0;
uint32_t gicr_nsacr;
/* This is temporary working state, to avoid a malloc in gicv3_update() */
bool seenbetter;
+
+ /*
+ * Whether the CPU interface has NMI support (FEAT_GICv3_NMI). The
+ * CPU interface may support NMIs even when the GIC proper (what the
+ * spec calls the IRI; the redistributors and distributor) does not.
+ */
+ bool nmi_support;
};
/*
uint32_t num_irq;
uint32_t revision;
bool lpi_enable;
+ bool nmi_support;
bool security_extn;
bool force_8bit_prio;
bool irq_reset_nonsecure;
GIC_DECLARE_BITMAP(active); /* GICD_ISACTIVER */
GIC_DECLARE_BITMAP(level); /* Current level */
GIC_DECLARE_BITMAP(edge_trigger); /* GICD_ICFGR even bits */
+ GIC_DECLARE_BITMAP(nmi); /* GICD_INMIR */
uint8_t gicd_ipriority[GICV3_MAXIRQ];
uint64_t gicd_irouter[GICV3_MAXIRQ];
/* Cached information: pointer to the cpu i/f for the CPUs specified
GICV3_BITMAP_ACCESSORS(active)
GICV3_BITMAP_ACCESSORS(level)
GICV3_BITMAP_ACCESSORS(edge_trigger)
+GICV3_BITMAP_ACCESSORS(nmi)
#define TYPE_ARM_GICV3_COMMON "arm-gicv3-common"
typedef struct ARMGICv3CommonClass ARMGICv3CommonClass;
*/
typedef enum ResetType {
RESET_TYPE_COLD,
+ RESET_TYPE_SNAPSHOT_LOAD,
} ResetType;
/*
* the callback.
*/
typedef void (*ResettableEnterPhase)(Object *obj, ResetType type);
-typedef void (*ResettableHoldPhase)(Object *obj);
-typedef void (*ResettableExitPhase)(Object *obj);
+typedef void (*ResettableHoldPhase)(Object *obj, ResetType type);
+typedef void (*ResettableExitPhase)(Object *obj, ResetType type);
typedef ResettableState * (*ResettableGetState)(Object *obj);
typedef void (*ResettableTrFunction)(Object *obj);
typedef ResettableTrFunction (*ResettableGetTrFunction)(Object *obj);
#define FLAT_VERSION 0x00000004L
-#ifdef CONFIG_BINFMT_SHARED_FLAT
-#define MAX_SHARED_LIBS (4)
-#else
+/* QEMU doesn't support bflt shared libraries */
#define MAX_SHARED_LIBS (1)
-#endif
/*
* To make everything easier to port and manage cross platform
* JAN/99 -- coded full program relocation (gerg@snapgear.com)
*/
-/* ??? ZFLAT and shared library support is currently disabled. */
-
/****************************************************************************/
#include "qemu/osdep.h"
short loaded; /* Has this library been loaded? */
};
-#ifdef CONFIG_BINFMT_SHARED_FLAT
-static int load_flat_shared_library(int id, struct lib_info *p);
-#endif
-
struct linux_binprm;
/****************************************************************************/
unlock_user(buf, ptr, len);
return ret;
}
-/****************************************************************************/
-
-#ifdef CONFIG_BINFMT_ZFLAT
-
-#include <linux/zlib.h>
-
-#define LBUFSIZE 4000
-
-/* gzip flag byte */
-#define ASCII_FLAG 0x01 /* bit 0 set: file probably ASCII text */
-#define CONTINUATION 0x02 /* bit 1 set: continuation of multi-part gzip file */
-#define EXTRA_FIELD 0x04 /* bit 2 set: extra field present */
-#define ORIG_NAME 0x08 /* bit 3 set: original file name present */
-#define COMMENT 0x10 /* bit 4 set: file comment present */
-#define ENCRYPTED 0x20 /* bit 5 set: file is encrypted */
-#define RESERVED 0xC0 /* bit 6,7: reserved */
-
-static int decompress_exec(
- struct linux_binprm *bprm,
- unsigned long offset,
- char *dst,
- long len,
- int fd)
-{
- unsigned char *buf;
- z_stream strm;
- loff_t fpos;
- int ret, retval;
-
- DBG_FLT("decompress_exec(offset=%x,buf=%x,len=%x)\n",(int)offset, (int)dst, (int)len);
-
- memset(&strm, 0, sizeof(strm));
- strm.workspace = kmalloc(zlib_inflate_workspacesize(), GFP_KERNEL);
- if (strm.workspace == NULL) {
- DBG_FLT("binfmt_flat: no memory for decompress workspace\n");
- return -ENOMEM;
- }
- buf = kmalloc(LBUFSIZE, GFP_KERNEL);
- if (buf == NULL) {
- DBG_FLT("binfmt_flat: no memory for read buffer\n");
- retval = -ENOMEM;
- goto out_free;
- }
-
- /* Read in first chunk of data and parse gzip header. */
- fpos = offset;
- ret = bprm->file->f_op->read(bprm->file, buf, LBUFSIZE, &fpos);
-
- strm.next_in = buf;
- strm.avail_in = ret;
- strm.total_in = 0;
-
- retval = -ENOEXEC;
-
- /* Check minimum size -- gzip header */
- if (ret < 10) {
- DBG_FLT("binfmt_flat: file too small?\n");
- goto out_free_buf;
- }
-
- /* Check gzip magic number */
- if ((buf[0] != 037) || ((buf[1] != 0213) && (buf[1] != 0236))) {
- DBG_FLT("binfmt_flat: unknown compression magic?\n");
- goto out_free_buf;
- }
-
- /* Check gzip method */
- if (buf[2] != 8) {
- DBG_FLT("binfmt_flat: unknown compression method?\n");
- goto out_free_buf;
- }
- /* Check gzip flags */
- if ((buf[3] & ENCRYPTED) || (buf[3] & CONTINUATION) ||
- (buf[3] & RESERVED)) {
- DBG_FLT("binfmt_flat: unknown flags?\n");
- goto out_free_buf;
- }
-
- ret = 10;
- if (buf[3] & EXTRA_FIELD) {
- ret += 2 + buf[10] + (buf[11] << 8);
- if (unlikely(LBUFSIZE == ret)) {
- DBG_FLT("binfmt_flat: buffer overflow (EXTRA)?\n");
- goto out_free_buf;
- }
- }
- if (buf[3] & ORIG_NAME) {
- for (; ret < LBUFSIZE && (buf[ret] != 0); ret++)
- ;
- if (unlikely(LBUFSIZE == ret)) {
- DBG_FLT("binfmt_flat: buffer overflow (ORIG_NAME)?\n");
- goto out_free_buf;
- }
- }
- if (buf[3] & COMMENT) {
- for (; ret < LBUFSIZE && (buf[ret] != 0); ret++)
- ;
- if (unlikely(LBUFSIZE == ret)) {
- DBG_FLT("binfmt_flat: buffer overflow (COMMENT)?\n");
- goto out_free_buf;
- }
- }
-
- strm.next_in += ret;
- strm.avail_in -= ret;
-
- strm.next_out = dst;
- strm.avail_out = len;
- strm.total_out = 0;
-
- if (zlib_inflateInit2(&strm, -MAX_WBITS) != Z_OK) {
- DBG_FLT("binfmt_flat: zlib init failed?\n");
- goto out_free_buf;
- }
-
- while ((ret = zlib_inflate(&strm, Z_NO_FLUSH)) == Z_OK) {
- ret = bprm->file->f_op->read(bprm->file, buf, LBUFSIZE, &fpos);
- if (ret <= 0)
- break;
- if (is_error(ret)) {
- break;
- }
- len -= ret;
-
- strm.next_in = buf;
- strm.avail_in = ret;
- strm.total_in = 0;
- }
-
- if (ret < 0) {
- DBG_FLT("binfmt_flat: decompression failed (%d), %s\n",
- ret, strm.msg);
- goto out_zlib;
- }
-
- retval = 0;
-out_zlib:
- zlib_inflateEnd(&strm);
-out_free_buf:
- kfree(buf);
-out_free:
- kfree(strm.workspace);
-out:
- return retval;
-}
-
-#endif /* CONFIG_BINFMT_ZFLAT */
/****************************************************************************/
abi_ulong text_len;
abi_ulong start_code;
-#ifdef CONFIG_BINFMT_SHARED_FLAT
-#error needs checking
- if (r == 0)
- id = curid; /* Relocs of 0 are always self referring */
- else {
- id = (r >> 24) & 0xff; /* Find ID for this reloc */
- r &= 0x00ffffff; /* Trim ID off here */
- }
- if (id >= MAX_SHARED_LIBS) {
- fprintf(stderr, "BINFMT_FLAT: reference 0x%x to shared library %d\n",
- (unsigned) r, id);
- goto failed;
- }
- if (curid != id) {
- if (internalp) {
- fprintf(stderr, "BINFMT_FLAT: reloc address 0x%x not "
- "in same module (%d != %d)\n",
- (unsigned) r, curid, id);
- goto failed;
- } else if (!p[id].loaded && is_error(load_flat_shared_library(id, p))) {
- fprintf(stderr, "BINFMT_FLAT: failed to load library %d\n", id);
- goto failed;
- }
- /* Check versioning information (i.e. time stamps) */
- if (p[id].build_date && p[curid].build_date
- && p[curid].build_date < p[id].build_date) {
- fprintf(stderr, "BINFMT_FLAT: library %d is younger than %d\n",
- id, curid);
- goto failed;
- }
- }
-#else
id = 0;
-#endif
start_brk = p[id].start_brk;
start_data = p[id].start_data;
if (rev == OLD_FLAT_VERSION && flat_old_ram_flag(flags))
flags = FLAT_FLAG_RAM;
-#ifndef CONFIG_BINFMT_ZFLAT
if (flags & (FLAT_FLAG_GZIP|FLAT_FLAG_GZDATA)) {
- fprintf(stderr, "Support for ZFLAT executables is not enabled\n");
+ fprintf(stderr, "ZFLAT executables are not supported\n");
return -ENOEXEC;
}
-#endif
/*
* calculate the extra space we need to map in
(int)(data_len + bss_len + stack_len), (int)datapos);
fpos = ntohl(hdr->data_start);
-#ifdef CONFIG_BINFMT_ZFLAT
- if (flags & FLAT_FLAG_GZDATA) {
- result = decompress_exec(bprm, fpos, (char *) datapos,
- data_len + (relocs * sizeof(abi_ulong)))
- } else
-#endif
- {
- result = target_pread(bprm->src.fd, datapos,
- data_len + (relocs * sizeof(abi_ulong)),
- fpos);
- }
+ result = target_pread(bprm->src.fd, datapos,
+ data_len + (relocs * sizeof(abi_ulong)),
+ fpos);
if (result < 0) {
fprintf(stderr, "Unable to read data+bss\n");
return result;
datapos = realdatastart + indx_len;
reloc = (textpos + ntohl(hdr->reloc_start) + indx_len);
-#ifdef CONFIG_BINFMT_ZFLAT
-#error code needs checking
- /*
- * load it all in and treat it like a RAM load from now on
- */
- if (flags & FLAT_FLAG_GZIP) {
- result = decompress_exec(bprm, sizeof (struct flat_hdr),
- (((char *) textpos) + sizeof (struct flat_hdr)),
- (text_len + data_len + (relocs * sizeof(unsigned long))
- - sizeof (struct flat_hdr)),
- 0);
- memmove((void *) datapos, (void *) realdatastart,
- data_len + (relocs * sizeof(unsigned long)));
- } else if (flags & FLAT_FLAG_GZDATA) {
- fpos = 0;
- result = bprm->file->f_op->read(bprm->file,
- (char *) textpos, text_len, &fpos);
- if (!is_error(result)) {
- result = decompress_exec(bprm, text_len, (char *) datapos,
- data_len + (relocs * sizeof(unsigned long)), 0);
- }
- }
- else
-#endif
- {
- result = target_pread(bprm->src.fd, textpos,
- text_len, 0);
- if (result >= 0) {
- result = target_pread(bprm->src.fd, datapos,
- data_len + (relocs * sizeof(abi_ulong)),
- ntohl(hdr->data_start));
- }
+ result = target_pread(bprm->src.fd, textpos,
+ text_len, 0);
+ if (result >= 0) {
+ result = target_pread(bprm->src.fd, datapos,
+ data_len + (relocs * sizeof(abi_ulong)),
+ ntohl(hdr->data_start));
}
if (result < 0) {
fprintf(stderr, "Unable to read code+data+bss\n");
/****************************************************************************/
-#ifdef CONFIG_BINFMT_SHARED_FLAT
-
-/*
- * Load a shared library into memory. The library gets its own data
- * segment (including bss) but not argv/argc/environ.
- */
-
-static int load_flat_shared_library(int id, struct lib_info *libs)
-{
- struct linux_binprm bprm;
- int res;
- char buf[16];
-
- /* Create the file name */
- sprintf(buf, "/lib/lib%d.so", id);
-
- /* Open the file up */
- bprm.filename = buf;
- bprm.file = open_exec(bprm.filename);
- res = PTR_ERR(bprm.file);
- if (IS_ERR(bprm.file))
- return res;
-
- res = prepare_binprm(&bprm);
-
- if (!is_error(res)) {
- res = load_flat_file(&bprm, libs, id, NULL);
- }
- if (bprm.file) {
- allow_write_access(bprm.file);
- fput(bprm.file);
- bprm.file = NULL;
- }
- return(res);
-}
-
-#endif /* CONFIG_BINFMT_SHARED_FLAT */
-
int load_flt_binary(struct linux_binprm *bprm, struct image_info *info)
{
struct lib_info libinfo[MAX_SHARED_LIBS];
*/
start_addr = libinfo[0].entry;
-#ifdef CONFIG_BINFMT_SHARED_FLAT
-#error here
- for (i = MAX_SHARED_LIBS-1; i>0; i--) {
- if (libinfo[i].loaded) {
- /* Push previous first to call address */
- --sp;
- if (put_user_ual(start_addr, sp))
- return -EFAULT;
- start_addr = libinfo[i].entry;
- }
- }
-#endif
-
/* Stash our initial stack pointer into the mm structure */
info->start_code = libinfo[0].start_code;
info->end_code = libinfo[0].start_code + libinfo[0].text_len;
--- /dev/null
+// Convert device code using three-phase reset to add a ResetType
+// argument to implementations of ResettableHoldPhase and
+// ResettableEnterPhase methods.
+//
+// Copyright Linaro Ltd 2024
+// SPDX-License-Identifier: GPL-2.0-or-later
+//
+// for dir in include hw target; do \
+// spatch --macro-file scripts/cocci-macro-file.h \
+// --sp-file scripts/coccinelle/reset-type.cocci \
+// --keep-comments --smpl-spacing --in-place --include-headers \
+// --dir $dir; done
+//
+// This coccinelle script aims to produce a complete change that needs
+// no human interaction, so as well as the generic "update device
+// implementations of the hold and exit phase methods" it includes
+// the special-case transformations needed for the core code and for
+// one device model that does something a bit nonstandard. Those
+// special cases are at the end of the file.
+
+// Look for where we use a function as a ResettableHoldPhase method,
+// either by directly assigning it to phases.hold or by calling
+// resettable_class_set_parent_phases, and remember the function name.
+@ holdfn_assigned @
+identifier enterfn, holdfn, exitfn;
+identifier rc;
+expression e;
+@@
+ResettableClass *rc;
+...
+(
+ rc->phases.hold = holdfn;
+|
+ resettable_class_set_parent_phases(rc, enterfn, holdfn, exitfn, e);
+)
+
+// Look for the definition of the function we found in holdfn_assigned,
+// and add the new argument. If the function calls a hold function
+// itself (probably chaining to the parent class reset) then add the
+// new argument there too.
+@ holdfn_defined @
+identifier holdfn_assigned.holdfn;
+typedef Object;
+identifier obj;
+expression parent;
+@@
+-holdfn(Object *obj)
++holdfn(Object *obj, ResetType type)
+{
+ <...
+- parent.hold(obj)
++ parent.hold(obj, type)
+ ...>
+}
+
+// Similarly for ResettableExitPhase.
+@ exitfn_assigned @
+identifier enterfn, holdfn, exitfn;
+identifier rc;
+expression e;
+@@
+ResettableClass *rc;
+...
+(
+ rc->phases.exit = exitfn;
+|
+ resettable_class_set_parent_phases(rc, enterfn, holdfn, exitfn, e);
+)
+@ exitfn_defined @
+identifier exitfn_assigned.exitfn;
+typedef Object;
+identifier obj;
+expression parent;
+@@
+-exitfn(Object *obj)
++exitfn(Object *obj, ResetType type)
+{
+ <...
+- parent.exit(obj)
++ parent.exit(obj, type)
+ ...>
+}
+
+// SPECIAL CASES ONLY BELOW HERE
+// We use a python scripted constraint on the position of the match
+// to ensure that they only match in a particular function. See
+// https://public-inbox.org/git/alpine.DEB.2.21.1808240652370.2344@hadrien/
+// which recommends this as the way to do "match only in this function".
+
+// Special case: isl_pmbus_vr.c has some reset methods calling others directly
+@ isl_pmbus_vr @
+identifier obj;
+@@
+- isl_pmbus_vr_exit_reset(obj);
++ isl_pmbus_vr_exit_reset(obj, type);
+
+// Special case: device_phases_reset() needs to pass RESET_TYPE_COLD
+@ device_phases_reset_hold @
+expression obj;
+identifier rc;
+identifier phase;
+position p : script:python() { p[0].current_element == "device_phases_reset" };
+@@
+- rc->phases.phase(obj)@p
++ rc->phases.phase(obj, RESET_TYPE_COLD)
+
+// Special case: in resettable_phase_hold() and resettable_phase_exit()
+// we need to pass through the ResetType argument to the method being called
+@ resettable_phase_hold @
+expression obj;
+identifier rc;
+position p : script:python() { p[0].current_element == "resettable_phase_hold" };
+@@
+- rc->phases.hold(obj)@p
++ rc->phases.hold(obj, type)
+@ resettable_phase_exit @
+expression obj;
+identifier rc;
+position p : script:python() { p[0].current_element == "resettable_phase_exit" };
+@@
+- rc->phases.exit(obj)@p
++ rc->phases.exit(obj, type)
+// Special case: the typedefs for the methods need to declare the new argument
+@ phase_typedef_hold @
+identifier obj;
+@@
+- typedef void (*ResettableHoldPhase)(Object *obj);
++ typedef void (*ResettableHoldPhase)(Object *obj, ResetType type);
+@ phase_typedef_exit @
+identifier obj;
+@@
+- typedef void (*ResettableExitPhase)(Object *obj);
++ typedef void (*ResettableExitPhase)(Object *obj, ResetType type);
return FIELD_EX64(id->id_aa64pfr1, ID_AA64PFR1, SME) != 0;
}
+static inline bool isar_feature_aa64_nmi(const ARMISARegisters *id)
+{
+ return FIELD_EX64(id->id_aa64pfr1, ID_AA64PFR1, NMI) != 0;
+}
+
static inline bool isar_feature_aa64_tgran4_lpa2(const ARMISARegisters *id)
{
return FIELD_SEX64(id->id_aa64mmfr0, ID_AA64MMFR0, TGRAN4) >= 1;
#define ARM_CPU_TYPE_SUFFIX "-" TYPE_ARM_CPU
#define ARM_CPU_TYPE_NAME(name) (name ARM_CPU_TYPE_SUFFIX)
-/* Meanings of the ARMCPU object's four inbound GPIO lines */
+/* Meanings of the ARMCPU object's seven inbound GPIO lines */
#define ARM_CPU_IRQ 0
#define ARM_CPU_FIQ 1
#define ARM_CPU_VIRQ 2
#define ARM_CPU_VFIQ 3
+#define ARM_CPU_NMI 4
+#define ARM_CPU_VINMI 5
+#define ARM_CPU_VFNMI 6
/* For M profile, some registers are banked secure vs non-secure;
* these are represented as a 2-element array where the first element
}
#endif /* CONFIG_TCG */
+/*
+ * With SCTLR_ELx.NMI == 0, IRQ with Superpriority is masked identically with
+ * IRQ without Superpriority. Moreover, if the GIC is configured so that
+ * FEAT_GICv3_NMI is only set if FEAT_NMI is set, then we won't ever see
+ * CPU_INTERRUPT_*NMI anyway. So we might as well accept NMI here
+ * unconditionally.
+ */
static bool arm_cpu_has_work(CPUState *cs)
{
ARMCPU *cpu = ARM_CPU(cs);
return (cpu->power_state != PSCI_OFF)
&& cs->interrupt_request &
(CPU_INTERRUPT_FIQ | CPU_INTERRUPT_HARD
+ | CPU_INTERRUPT_NMI | CPU_INTERRUPT_VINMI | CPU_INTERRUPT_VFNMI
| CPU_INTERRUPT_VFIQ | CPU_INTERRUPT_VIRQ | CPU_INTERRUPT_VSERR
| CPU_INTERRUPT_EXITTB);
}
assert(oldvalue == newvalue);
}
-static void arm_cpu_reset_hold(Object *obj)
+static void arm_cpu_reset_hold(Object *obj, ResetType type)
{
CPUState *cs = CPU(obj);
ARMCPU *cpu = ARM_CPU(cs);
CPUARMState *env = &cpu->env;
if (acc->parent_phases.hold) {
- acc->parent_phases.hold(obj);
+ acc->parent_phases.hold(obj, type);
}
memset(env, 0, offsetof(CPUARMState, end_reset_fields));
CPUARMState *env = cpu_env(cs);
bool pstate_unmasked;
bool unmasked = false;
+ bool allIntMask = false;
/*
* Don't take exceptions if they target a lower EL.
return false;
}
+ if (cpu_isar_feature(aa64_nmi, env_archcpu(env)) &&
+ env->cp15.sctlr_el[target_el] & SCTLR_NMI && cur_el == target_el) {
+ allIntMask = env->pstate & PSTATE_ALLINT ||
+ ((env->cp15.sctlr_el[target_el] & SCTLR_SPINTMASK) &&
+ (env->pstate & PSTATE_SP));
+ }
+
switch (excp_idx) {
+ case EXCP_NMI:
+ pstate_unmasked = !allIntMask;
+ break;
+
+ case EXCP_VINMI:
+ if (!(hcr_el2 & HCR_IMO) || (hcr_el2 & HCR_TGE)) {
+ /* VINMIs are only taken when hypervized. */
+ return false;
+ }
+ return !allIntMask;
+ case EXCP_VFNMI:
+ if (!(hcr_el2 & HCR_FMO) || (hcr_el2 & HCR_TGE)) {
+ /* VFNMIs are only taken when hypervized. */
+ return false;
+ }
+ return !allIntMask;
case EXCP_FIQ:
- pstate_unmasked = !(env->daif & PSTATE_F);
+ pstate_unmasked = (!(env->daif & PSTATE_F)) && (!allIntMask);
break;
case EXCP_IRQ:
- pstate_unmasked = !(env->daif & PSTATE_I);
+ pstate_unmasked = (!(env->daif & PSTATE_I)) && (!allIntMask);
break;
case EXCP_VFIQ:
/* VFIQs are only taken when hypervized. */
return false;
}
- return !(env->daif & PSTATE_F);
+ return !(env->daif & PSTATE_F) && (!allIntMask);
case EXCP_VIRQ:
if (!(hcr_el2 & HCR_IMO) || (hcr_el2 & HCR_TGE)) {
/* VIRQs are only taken when hypervized. */
return false;
}
- return !(env->daif & PSTATE_I);
+ return !(env->daif & PSTATE_I) && (!allIntMask);
case EXCP_VSERR:
if (!(hcr_el2 & HCR_AMO) || (hcr_el2 & HCR_TGE)) {
/* VIRQs are only taken when hypervized. */
/* The prioritization of interrupts is IMPLEMENTATION DEFINED. */
+ if (cpu_isar_feature(aa64_nmi, env_archcpu(env)) &&
+ (arm_sctlr(env, cur_el) & SCTLR_NMI)) {
+ if (interrupt_request & CPU_INTERRUPT_NMI) {
+ excp_idx = EXCP_NMI;
+ target_el = arm_phys_excp_target_el(cs, excp_idx, cur_el, secure);
+ if (arm_excp_unmasked(cs, excp_idx, target_el,
+ cur_el, secure, hcr_el2)) {
+ goto found;
+ }
+ }
+ if (interrupt_request & CPU_INTERRUPT_VINMI) {
+ excp_idx = EXCP_VINMI;
+ target_el = 1;
+ if (arm_excp_unmasked(cs, excp_idx, target_el,
+ cur_el, secure, hcr_el2)) {
+ goto found;
+ }
+ }
+ if (interrupt_request & CPU_INTERRUPT_VFNMI) {
+ excp_idx = EXCP_VFNMI;
+ target_el = 1;
+ if (arm_excp_unmasked(cs, excp_idx, target_el,
+ cur_el, secure, hcr_el2)) {
+ goto found;
+ }
+ }
+ } else {
+ /*
+ * NMI disabled: interrupts with superpriority are handled
+ * as if they didn't have it
+ */
+ if (interrupt_request & CPU_INTERRUPT_NMI) {
+ interrupt_request |= CPU_INTERRUPT_HARD;
+ }
+ if (interrupt_request & CPU_INTERRUPT_VINMI) {
+ interrupt_request |= CPU_INTERRUPT_VIRQ;
+ }
+ if (interrupt_request & CPU_INTERRUPT_VFNMI) {
+ interrupt_request |= CPU_INTERRUPT_VFIQ;
+ }
+ }
+
if (interrupt_request & CPU_INTERRUPT_FIQ) {
excp_idx = EXCP_FIQ;
target_el = arm_phys_excp_target_el(cs, excp_idx, cur_el, secure);
CPUARMState *env = &cpu->env;
CPUState *cs = CPU(cpu);
- bool new_state = (env->cp15.hcr_el2 & HCR_VI) ||
+ bool new_state = ((arm_hcr_el2_eff(env) & HCR_VI) &&
+ !(arm_hcrx_el2_eff(env) & HCRX_VINMI)) ||
(env->irq_line_state & CPU_INTERRUPT_VIRQ);
if (new_state != ((cs->interrupt_request & CPU_INTERRUPT_VIRQ) != 0)) {
CPUARMState *env = &cpu->env;
CPUState *cs = CPU(cpu);
- bool new_state = (env->cp15.hcr_el2 & HCR_VF) ||
+ bool new_state = ((arm_hcr_el2_eff(env) & HCR_VF) &&
+ !(arm_hcrx_el2_eff(env) & HCRX_VFNMI)) ||
(env->irq_line_state & CPU_INTERRUPT_VFIQ);
if (new_state != ((cs->interrupt_request & CPU_INTERRUPT_VFIQ) != 0)) {
}
}
+void arm_cpu_update_vinmi(ARMCPU *cpu)
+{
+ /*
+ * Update the interrupt level for VINMI, which is the logical OR of
+ * the HCRX_EL2.VINMI bit and the input line level from the GIC.
+ */
+ CPUARMState *env = &cpu->env;
+ CPUState *cs = CPU(cpu);
+
+ bool new_state = ((arm_hcr_el2_eff(env) & HCR_VI) &&
+ (arm_hcrx_el2_eff(env) & HCRX_VINMI)) ||
+ (env->irq_line_state & CPU_INTERRUPT_VINMI);
+
+ if (new_state != ((cs->interrupt_request & CPU_INTERRUPT_VINMI) != 0)) {
+ if (new_state) {
+ cpu_interrupt(cs, CPU_INTERRUPT_VINMI);
+ } else {
+ cpu_reset_interrupt(cs, CPU_INTERRUPT_VINMI);
+ }
+ }
+}
+
+void arm_cpu_update_vfnmi(ARMCPU *cpu)
+{
+ /*
+ * Update the interrupt level for VFNMI, which is the HCRX_EL2.VFNMI bit.
+ */
+ CPUARMState *env = &cpu->env;
+ CPUState *cs = CPU(cpu);
+
+ bool new_state = (arm_hcr_el2_eff(env) & HCR_VF) &&
+ (arm_hcrx_el2_eff(env) & HCRX_VFNMI);
+
+ if (new_state != ((cs->interrupt_request & CPU_INTERRUPT_VFNMI) != 0)) {
+ if (new_state) {
+ cpu_interrupt(cs, CPU_INTERRUPT_VFNMI);
+ } else {
+ cpu_reset_interrupt(cs, CPU_INTERRUPT_VFNMI);
+ }
+ }
+}
+
void arm_cpu_update_vserr(ARMCPU *cpu)
{
/*
[ARM_CPU_IRQ] = CPU_INTERRUPT_HARD,
[ARM_CPU_FIQ] = CPU_INTERRUPT_FIQ,
[ARM_CPU_VIRQ] = CPU_INTERRUPT_VIRQ,
- [ARM_CPU_VFIQ] = CPU_INTERRUPT_VFIQ
+ [ARM_CPU_VFIQ] = CPU_INTERRUPT_VFIQ,
+ [ARM_CPU_NMI] = CPU_INTERRUPT_NMI,
+ [ARM_CPU_VINMI] = CPU_INTERRUPT_VINMI,
};
if (!arm_feature(env, ARM_FEATURE_EL2) &&
case ARM_CPU_VFIQ:
arm_cpu_update_vfiq(cpu);
break;
+ case ARM_CPU_VINMI:
+ arm_cpu_update_vinmi(cpu);
+ break;
case ARM_CPU_IRQ:
case ARM_CPU_FIQ:
+ case ARM_CPU_NMI:
if (level) {
cpu_interrupt(cs, mask[irq]);
} else {
#else
/* Our inbound IRQ and FIQ lines */
if (kvm_enabled()) {
- /* VIRQ and VFIQ are unused with KVM but we add them to maintain
- * the same interface as non-KVM CPUs.
+ /*
+ * VIRQ, VFIQ, NMI, VINMI are unused with KVM but we add
+ * them to maintain the same interface as non-KVM CPUs.
*/
- qdev_init_gpio_in(DEVICE(cpu), arm_cpu_kvm_set_irq, 4);
+ qdev_init_gpio_in(DEVICE(cpu), arm_cpu_kvm_set_irq, 6);
} else {
- qdev_init_gpio_in(DEVICE(cpu), arm_cpu_set_irq, 4);
+ qdev_init_gpio_in(DEVICE(cpu), arm_cpu_set_irq, 6);
}
qdev_init_gpio_out(DEVICE(cpu), cpu->gt_timer_outputs,
#define EXCP_DIVBYZERO 23 /* v7M DIVBYZERO UsageFault */
#define EXCP_VSERR 24
#define EXCP_GPC 25 /* v9 Granule Protection Check Fault */
+#define EXCP_NMI 26
+#define EXCP_VINMI 27
+#define EXCP_VFNMI 28
/* NB: add new EXCP_ defines to the array in arm_log_exception() too */
#define ARMV7M_EXCP_RESET 1
#define CPU_INTERRUPT_VIRQ CPU_INTERRUPT_TGT_EXT_2
#define CPU_INTERRUPT_VFIQ CPU_INTERRUPT_TGT_EXT_3
#define CPU_INTERRUPT_VSERR CPU_INTERRUPT_TGT_INT_0
+#define CPU_INTERRUPT_NMI CPU_INTERRUPT_TGT_EXT_4
+#define CPU_INTERRUPT_VINMI CPU_INTERRUPT_TGT_EXT_0
+#define CPU_INTERRUPT_VFNMI CPU_INTERRUPT_TGT_INT_1
/* The usual mapping for an AArch64 system register to its AArch32
* counterpart is for the 32 bit world to have access to the lower
#define CPSR_N (1U << 31)
#define CPSR_NZCV (CPSR_N | CPSR_Z | CPSR_C | CPSR_V)
#define CPSR_AIF (CPSR_A | CPSR_I | CPSR_F)
+#define ISR_FS (1U << 9)
+#define ISR_IS (1U << 10)
#define CPSR_IT (CPSR_IT_0_1 | CPSR_IT_2_7)
#define CACHED_CPSR_BITS (CPSR_T | CPSR_AIF | CPSR_GE | CPSR_IT | CPSR_Q \
#define PSTATE_D (1U << 9)
#define PSTATE_BTYPE (3U << 10)
#define PSTATE_SSBS (1U << 12)
+#define PSTATE_ALLINT (1U << 13)
#define PSTATE_IL (1U << 20)
#define PSTATE_SS (1U << 21)
#define PSTATE_PAN (1U << 22)
if (cs->interrupt_request & CPU_INTERRUPT_VIRQ) {
ret |= CPSR_I;
}
+ if (cs->interrupt_request & CPU_INTERRUPT_VINMI) {
+ ret |= ISR_IS;
+ ret |= CPSR_I;
+ }
} else {
if (cs->interrupt_request & CPU_INTERRUPT_HARD) {
ret |= CPSR_I;
}
+
+ if (cs->interrupt_request & CPU_INTERRUPT_NMI) {
+ ret |= ISR_IS;
+ ret |= CPSR_I;
+ }
}
if (hcr_el2 & HCR_FMO) {
if (cs->interrupt_request & CPU_INTERRUPT_VFIQ) {
ret |= CPSR_F;
}
+ if (cs->interrupt_request & CPU_INTERRUPT_VFNMI) {
+ ret |= ISR_FS;
+ ret |= CPSR_F;
+ }
} else {
if (cs->interrupt_request & CPU_INTERRUPT_FIQ) {
ret |= CPSR_F;
* and the state of the input lines from the GIC. (This requires
* that we have the BQL, which is done by marking the
* reginfo structs as ARM_CP_IO.)
- * Note that if a write to HCR pends a VIRQ or VFIQ it is never
- * possible for it to be taken immediately, because VIRQ and
- * VFIQ are masked unless running at EL0 or EL1, and HCR
- * can only be written at EL2.
+ * Note that if a write to HCR pends a VIRQ or VFIQ or VINMI or
+ * VFNMI, it is never possible for it to be taken immediately
+ * because VIRQ, VFIQ, VINMI and VFNMI are masked unless running
+ * at EL0 or EL1, and HCR can only be written at EL2.
*/
g_assert(bql_locked());
arm_cpu_update_virq(cpu);
arm_cpu_update_vfiq(cpu);
arm_cpu_update_vserr(cpu);
+ if (cpu_isar_feature(aa64_nmi, cpu)) {
+ arm_cpu_update_vinmi(cpu);
+ arm_cpu_update_vfnmi(cpu);
+ }
}
static void hcr_write(CPUARMState *env, const ARMCPRegInfo *ri, uint64_t value)
static void hcrx_write(CPUARMState *env, const ARMCPRegInfo *ri,
uint64_t value)
{
+ ARMCPU *cpu = env_archcpu(env);
uint64_t valid_mask = 0;
/* FEAT_MOPS adds MSCEn and MCE2 */
- if (cpu_isar_feature(aa64_mops, env_archcpu(env))) {
+ if (cpu_isar_feature(aa64_mops, cpu)) {
valid_mask |= HCRX_MSCEN | HCRX_MCE2;
}
+ /* FEAT_NMI adds TALLINT, VINMI and VFNMI */
+ if (cpu_isar_feature(aa64_nmi, cpu)) {
+ valid_mask |= HCRX_TALLINT | HCRX_VINMI | HCRX_VFNMI;
+ }
+
/* Clear RES0 bits. */
env->cp15.hcrx_el2 = value & valid_mask;
+
+ /*
+ * Updates to VINMI and VFNMI require us to update the status of
+ * virtual NMI, which are the logical OR of these bits
+ * and the state of the input lines from the GIC. (This requires
+ * that we have the BQL, which is done by marking the
+ * reginfo structs as ARM_CP_IO.)
+ * Note that if a write to HCRX pends a VINMI or VFNMI it is never
+ * possible for it to be taken immediately, because VINMI and
+ * VFNMI are masked unless running at EL0 or EL1, and HCRX
+ * can only be written at EL2.
+ */
+ if (cpu_isar_feature(aa64_nmi, cpu)) {
+ g_assert(bql_locked());
+ arm_cpu_update_vinmi(cpu);
+ arm_cpu_update_vfnmi(cpu);
+ }
}
static CPAccessResult access_hxen(CPUARMState *env, const ARMCPRegInfo *ri,
static const ARMCPRegInfo hcrx_el2_reginfo = {
.name = "HCRX_EL2", .state = ARM_CP_STATE_AA64,
+ .type = ARM_CP_IO,
.opc0 = 3, .opc1 = 4, .crn = 1, .crm = 2, .opc2 = 2,
.access = PL2_RW, .writefn = hcrx_write, .accessfn = access_hxen,
.nv2_redirect_offset = 0xa0,
.opc0 = 1, .opc1 = 6, .crn = 7, .crm = 14, .opc2 = 5,
.access = PL3_W, .type = ARM_CP_NOP },
};
+
+static void aa64_allint_write(CPUARMState *env, const ARMCPRegInfo *ri,
+ uint64_t value)
+{
+ env->pstate = (env->pstate & ~PSTATE_ALLINT) | (value & PSTATE_ALLINT);
+}
+
+static uint64_t aa64_allint_read(CPUARMState *env, const ARMCPRegInfo *ri)
+{
+ return env->pstate & PSTATE_ALLINT;
+}
+
+static CPAccessResult aa64_allint_access(CPUARMState *env,
+ const ARMCPRegInfo *ri, bool isread)
+{
+ if (!isread && arm_current_el(env) == 1 &&
+ (arm_hcrx_el2_eff(env) & HCRX_TALLINT)) {
+ return CP_ACCESS_TRAP_EL2;
+ }
+ return CP_ACCESS_OK;
+}
+
+static const ARMCPRegInfo nmi_reginfo[] = {
+ { .name = "ALLINT", .state = ARM_CP_STATE_AA64,
+ .opc0 = 3, .opc1 = 0, .opc2 = 0, .crn = 4, .crm = 3,
+ .type = ARM_CP_NO_RAW,
+ .access = PL1_RW, .accessfn = aa64_allint_access,
+ .fieldoffset = offsetof(CPUARMState, pstate),
+ .writefn = aa64_allint_write, .readfn = aa64_allint_read,
+ .resetfn = arm_cp_reset_ignore },
+};
#endif /* TARGET_AARCH64 */
static void define_pmu_regs(ARMCPU *cpu)
if (cpu_isar_feature(aa64_nv2, cpu)) {
define_arm_cp_regs(cpu, nv2_reginfo);
}
+
+ if (cpu_isar_feature(aa64_nmi, cpu)) {
+ define_arm_cp_regs(cpu, nmi_reginfo);
+ }
#endif
if (cpu_isar_feature(any_predinv, cpu)) {
hcr_el2 = arm_hcr_el2_eff(env);
switch (excp_idx) {
case EXCP_IRQ:
+ case EXCP_NMI:
scr = ((env->cp15.scr_el3 & SCR_IRQ) == SCR_IRQ);
hcr = hcr_el2 & HCR_IMO;
break;
[EXCP_DIVBYZERO] = "v7M DIVBYZERO UsageFault",
[EXCP_VSERR] = "Virtual SERR",
[EXCP_GPC] = "Granule Protection Check",
+ [EXCP_NMI] = "NMI",
+ [EXCP_VINMI] = "Virtual IRQ NMI",
+ [EXCP_VFNMI] = "Virtual FIQ NMI",
};
if (idx >= 0 && idx < ARRAY_SIZE(excnames)) {
break;
case EXCP_IRQ:
case EXCP_VIRQ:
+ case EXCP_NMI:
+ case EXCP_VINMI:
addr += 0x80;
break;
case EXCP_FIQ:
case EXCP_VFIQ:
+ case EXCP_VFNMI:
addr += 0x100;
break;
case EXCP_VSERR:
}
}
+ if (cpu_isar_feature(aa64_nmi, cpu)) {
+ if (!(env->cp15.sctlr_el[new_el] & SCTLR_SPINTMASK)) {
+ new_mode |= PSTATE_ALLINT;
+ } else {
+ new_mode &= ~PSTATE_ALLINT;
+ }
+ }
+
pstate_write(env, PSTATE_DAIF | new_mode);
env->aarch64 = true;
aarch64_restore_sp(env, new_el);
*/
void arm_cpu_update_vfiq(ARMCPU *cpu);
+/**
+ * arm_cpu_update_vinmi: Update CPU_INTERRUPT_VINMI bit in cs->interrupt_request
+ *
+ * Update the CPU_INTERRUPT_VINMI bit in cs->interrupt_request, following
+ * a change to either the input VNMI line from the GIC or the HCRX_EL2.VINMI.
+ * Must be called with the BQL held.
+ */
+void arm_cpu_update_vinmi(ARMCPU *cpu);
+
+/**
+ * arm_cpu_update_vfnmi: Update CPU_INTERRUPT_VFNMI bit in cs->interrupt_request
+ *
+ * Update the CPU_INTERRUPT_VFNMI bit in cs->interrupt_request, following
+ * a change to the HCRX_EL2.VFNMI.
+ * Must be called with the BQL held.
+ */
+void arm_cpu_update_vfnmi(ARMCPU *cpu);
+
/**
* arm_cpu_update_vserr: Update CPU_INTERRUPT_VSERR bit
*
if (isar_feature_aa64_mte(id)) {
valid |= PSTATE_TCO;
}
+ if (isar_feature_aa64_nmi(id)) {
+ valid |= PSTATE_ALLINT;
+ }
return valid;
}
MSR_i_TCO 1101 0101 0000 0 011 0100 .... 100 11111 @msr_i
MSR_i_DAIFSET 1101 0101 0000 0 011 0100 .... 110 11111 @msr_i
MSR_i_DAIFCLEAR 1101 0101 0000 0 011 0100 .... 111 11111 @msr_i
+MSR_i_ALLINT 1101 0101 0000 0 001 0100 000 imm:1 000 11111
MSR_i_SVCR 1101 0101 0000 0 011 0100 0 mask:2 imm:1 011 11111
# MRS, MSR (register), SYS, SYSL. These are all essentially the
t = FIELD_DP64(t, ID_AA64PFR1, RAS_FRAC, 0); /* FEAT_RASv1p1 + FEAT_DoubleFault */
t = FIELD_DP64(t, ID_AA64PFR1, SME, 1); /* FEAT_SME */
t = FIELD_DP64(t, ID_AA64PFR1, CSV2_FRAC, 0); /* FEAT_CSV2_2 */
+ t = FIELD_DP64(t, ID_AA64PFR1, NMI, 1); /* FEAT_NMI */
cpu->isar.id_aa64pfr1 = t;
t = cpu->isar.id_aa64mmfr0;
update_spsel(env, imm);
}
+void HELPER(msr_set_allint_el1)(CPUARMState *env)
+{
+ /* ALLINT update to PSTATE. */
+ if (arm_hcrx_el2_eff(env) & HCRX_TALLINT) {
+ raise_exception_ra(env, EXCP_UDEF,
+ syn_aa64_sysregtrap(0, 1, 0, 4, 1, 0x1f, 0), 2,
+ GETPC());
+ }
+
+ env->pstate |= PSTATE_ALLINT;
+}
+
static void daif_check(CPUARMState *env, uint32_t op,
uint32_t imm, uintptr_t ra)
{
*/
env->pstate |= PSTATE_IL;
env->pc = new_pc;
- spsr &= PSTATE_NZCV | PSTATE_DAIF;
- spsr |= pstate_read(env) & ~(PSTATE_NZCV | PSTATE_DAIF);
+ spsr &= PSTATE_NZCV | PSTATE_DAIF | PSTATE_ALLINT;
+ spsr |= pstate_read(env) & ~(PSTATE_NZCV | PSTATE_DAIF | PSTATE_ALLINT);
pstate_write(env, spsr);
if (!arm_singlestep_active(env)) {
env->pstate &= ~PSTATE_SS;
DEF_HELPER_2(msr_i_spsel, void, env, i32)
DEF_HELPER_2(msr_i_daifset, void, env, i32)
DEF_HELPER_2(msr_i_daifclear, void, env, i32)
+DEF_HELPER_1(msr_set_allint_el1, void, env)
DEF_HELPER_3(vfp_cmph_a64, i64, f16, f16, ptr)
DEF_HELPER_3(vfp_cmpeh_a64, i64, f16, f16, ptr)
DEF_HELPER_3(vfp_cmps_a64, i64, f32, f32, ptr)
return true;
}
+static bool trans_MSR_i_ALLINT(DisasContext *s, arg_i *a)
+{
+ if (!dc_isar_feature(aa64_nmi, s) || s->current_el == 0) {
+ return false;
+ }
+
+ if (a->imm == 0) {
+ clear_pstate_bits(PSTATE_ALLINT);
+ } else if (s->current_el > 1) {
+ set_pstate_bits(PSTATE_ALLINT);
+ } else {
+ gen_helper_msr_set_allint_el1(tcg_env);
+ }
+
+ /* Exit the cpu loop to re-evaluate pending IRQs. */
+ s->base.is_jmp = DISAS_UPDATE_EXIT;
+ return true;
+}
+
static bool trans_MSR_i_SVCR(DisasContext *s, arg_MSR_i_SVCR *a)
{
if (!dc_isar_feature(aa64_sme, s) || a->mask == 0) {
cpu_env(cs)->pc_w = data[0];
}
-static void avr_cpu_reset_hold(Object *obj)
+static void avr_cpu_reset_hold(Object *obj, ResetType type)
{
CPUState *cs = CPU(obj);
AVRCPU *cpu = AVR_CPU(cs);
CPUAVRState *env = &cpu->env;
if (mcc->parent_phases.hold) {
- mcc->parent_phases.hold(obj);
+ mcc->parent_phases.hold(obj, type);
}
env->pc_w = 0;
return !!(cpu_env(cs)->pregs[PR_CCS] & U_FLAG);
}
-static void cris_cpu_reset_hold(Object *obj)
+static void cris_cpu_reset_hold(Object *obj, ResetType type)
{
CPUState *cs = CPU(obj);
CRISCPUClass *ccc = CRIS_CPU_GET_CLASS(obj);
uint32_t vr;
if (ccc->parent_phases.hold) {
- ccc->parent_phases.hold(obj);
+ ccc->parent_phases.hold(obj, type);
}
vr = env->pregs[PR_VR];
cpu_env(cs)->gpr[HEX_REG_PC] = data[0];
}
-static void hexagon_cpu_reset_hold(Object *obj)
+static void hexagon_cpu_reset_hold(Object *obj, ResetType type)
{
CPUState *cs = CPU(obj);
HexagonCPUClass *mcc = HEXAGON_CPU_GET_CLASS(obj);
CPUHexagonState *env = cpu_env(cs);
if (mcc->parent_phases.hold) {
- mcc->parent_phases.hold(obj);
+ mcc->parent_phases.hold(obj, type);
}
set_default_nan_mode(1, &env->fp_status);
#endif
}
-static void x86_cpu_reset_hold(Object *obj)
+static void x86_cpu_reset_hold(Object *obj, ResetType type)
{
CPUState *cs = CPU(obj);
X86CPU *cpu = X86_CPU(cs);
int i;
if (xcc->parent_phases.hold) {
- xcc->parent_phases.hold(obj);
+ xcc->parent_phases.hold(obj, type);
}
memset(env, 0, offsetof(CPUX86State, end_reset_fields));
loongarch_la464_initfn(obj);
}
-static void loongarch_cpu_reset_hold(Object *obj)
+static void loongarch_cpu_reset_hold(Object *obj, ResetType type)
{
CPUState *cs = CPU(obj);
LoongArchCPUClass *lacc = LOONGARCH_CPU_GET_CLASS(obj);
CPULoongArchState *env = cpu_env(cs);
if (lacc->parent_phases.hold) {
- lacc->parent_phases.hold(obj);
+ lacc->parent_phases.hold(obj, type);
}
env->fcsr0_mask = FCSR0_M1 | FCSR0_M2 | FCSR0_M3;
env->features &= ~BIT_ULL(feature);
}
-static void m68k_cpu_reset_hold(Object *obj)
+static void m68k_cpu_reset_hold(Object *obj, ResetType type)
{
CPUState *cs = CPU(obj);
M68kCPUClass *mcc = M68K_CPU_GET_CLASS(obj);
int i;
if (mcc->parent_phases.hold) {
- mcc->parent_phases.hold(obj);
+ mcc->parent_phases.hold(obj, type);
}
memset(env, 0, offsetof(CPUM68KState, end_reset_fields));
}
#endif
-static void mb_cpu_reset_hold(Object *obj)
+static void mb_cpu_reset_hold(Object *obj, ResetType type)
{
CPUState *cs = CPU(obj);
MicroBlazeCPU *cpu = MICROBLAZE_CPU(cs);
CPUMBState *env = &cpu->env;
if (mcc->parent_phases.hold) {
- mcc->parent_phases.hold(obj);
+ mcc->parent_phases.hold(obj, type);
}
memset(env, 0, offsetof(CPUMBState, end_reset_fields));
#include "cpu-defs.c.inc"
-static void mips_cpu_reset_hold(Object *obj)
+static void mips_cpu_reset_hold(Object *obj, ResetType type)
{
CPUState *cs = CPU(obj);
MIPSCPU *cpu = MIPS_CPU(cs);
CPUMIPSState *env = &cpu->env;
if (mcc->parent_phases.hold) {
- mcc->parent_phases.hold(obj);
+ mcc->parent_phases.hold(obj, type);
}
memset(env, 0, offsetof(CPUMIPSState, end_reset_fields));
info->print_insn = print_insn_or1k;
}
-static void openrisc_cpu_reset_hold(Object *obj)
+static void openrisc_cpu_reset_hold(Object *obj, ResetType type)
{
CPUState *cs = CPU(obj);
OpenRISCCPU *cpu = OPENRISC_CPU(cs);
OpenRISCCPUClass *occ = OPENRISC_CPU_GET_CLASS(obj);
if (occ->parent_phases.hold) {
- occ->parent_phases.hold(obj);
+ occ->parent_phases.hold(obj, type);
}
memset(&cpu->env, 0, offsetof(CPUOpenRISCState, end_reset_fields));
return ppc_env_mmu_index(cpu_env(cs), ifetch);
}
-static void ppc_cpu_reset_hold(Object *obj)
+static void ppc_cpu_reset_hold(Object *obj, ResetType type)
{
CPUState *cs = CPU(obj);
PowerPCCPU *cpu = POWERPC_CPU(cs);
int i;
if (pcc->parent_phases.hold) {
- pcc->parent_phases.hold(obj);
+ pcc->parent_phases.hold(obj, type);
}
msr = (target_ulong)0;
return riscv_env_mmu_index(cpu_env(cs), ifetch);
}
-static void riscv_cpu_reset_hold(Object *obj)
+static void riscv_cpu_reset_hold(Object *obj, ResetType type)
{
#ifndef CONFIG_USER_ONLY
uint8_t iprio;
CPURISCVState *env = &cpu->env;
if (mcc->parent_phases.hold) {
- mcc->parent_phases.hold(obj);
+ mcc->parent_phases.hold(obj, type);
}
#ifndef CONFIG_USER_ONLY
env->misa_mxl = mcc->misa_mxl_max;
return 0;
}
-static void rx_cpu_reset_hold(Object *obj)
+static void rx_cpu_reset_hold(Object *obj, ResetType type)
{
CPUState *cs = CPU(obj);
RXCPUClass *rcc = RX_CPU_GET_CLASS(obj);
uint32_t *resetvec;
if (rcc->parent_phases.hold) {
- rcc->parent_phases.hold(obj);
+ rcc->parent_phases.hold(obj, type);
}
memset(env, 0, offsetof(CPURXState, end_reset_fields));
}
}
-static void superh_cpu_reset_hold(Object *obj)
+static void superh_cpu_reset_hold(Object *obj, ResetType type)
{
CPUState *cs = CPU(obj);
SuperHCPUClass *scc = SUPERH_CPU_GET_CLASS(obj);
CPUSH4State *env = cpu_env(cs);
if (scc->parent_phases.hold) {
- scc->parent_phases.hold(obj);
+ scc->parent_phases.hold(obj, type);
}
memset(env, 0, offsetof(CPUSH4State, end_reset_fields));
//#define DEBUG_FEATURES
-static void sparc_cpu_reset_hold(Object *obj)
+static void sparc_cpu_reset_hold(Object *obj, ResetType type)
{
CPUState *cs = CPU(obj);
SPARCCPUClass *scc = SPARC_CPU_GET_CLASS(obj);
CPUSPARCState *env = cpu_env(cs);
if (scc->parent_phases.hold) {
- scc->parent_phases.hold(obj);
+ scc->parent_phases.hold(obj, type);
}
memset(env, 0, offsetof(CPUSPARCState, end_reset_fields));
cpu_env(cs)->PC = data[0];
}
-static void tricore_cpu_reset_hold(Object *obj)
+static void tricore_cpu_reset_hold(Object *obj, ResetType type)
{
CPUState *cs = CPU(obj);
TriCoreCPUClass *tcc = TRICORE_CPU_GET_CLASS(obj);
if (tcc->parent_phases.hold) {
- tcc->parent_phases.hold(obj);
+ tcc->parent_phases.hold(obj, type);
}
cpu_state_reset(cpu_env(cs));
}
#endif
-static void xtensa_cpu_reset_hold(Object *obj)
+static void xtensa_cpu_reset_hold(Object *obj, ResetType type)
{
CPUState *cs = CPU(obj);
XtensaCPUClass *xcc = XTENSA_CPU_GET_CLASS(obj);
XTENSA_OPTION_DFP_COPROCESSOR);
if (xcc->parent_phases.hold) {
- xcc->parent_phases.hold(obj);
+ xcc->parent_phases.hold(obj, type);
}
env->pc = env->config->exception_vector[EXC_RESET0 + env->static_vectors];
'npcm7xx_pwm-test': 300,
'npcm7xx_watchdog_timer-test': 120,
'qom-test' : 900,
+ 'stm32l4x5_usart-test' : 600,
'test-hmp' : 240,
'pxe-test': 610,
'prom-env-test': 360,
['stm32l4x5_exti-test',
'stm32l4x5_syscfg-test',
'stm32l4x5_rcc-test',
- 'stm32l4x5_gpio-test']
+ 'stm32l4x5_gpio-test',
+ 'stm32l4x5_usart-test']
qtests_arm = \
(config_all_devices.has_key('CONFIG_MPS2') ? ['sse-timer-test'] : []) + \
--- /dev/null
+/*
+ * QTest testcase for STML4X5_USART
+ *
+ * Copyright (c) 2023 Arnaud Minier <arnaud.minier@telecom-paris.fr>
+ * Copyright (c) 2023 Inès Varhol <ines.varhol@telecom-paris.fr>
+ *
+ * This work is licensed under the terms of the GNU GPL, version 2 or later.
+ * See the COPYING file in the top-level directory.
+ */
+
+#include "qemu/osdep.h"
+#include "libqtest.h"
+#include "hw/misc/stm32l4x5_rcc_internals.h"
+#include "hw/registerfields.h"
+
+#define RCC_BASE_ADDR 0x40021000
+/* Use USART 1 ADDR, assume the others work the same */
+#define USART1_BASE_ADDR 0x40013800
+
+/* See stm32l4x5_usart for definitions */
+REG32(CR1, 0x00)
+ FIELD(CR1, M1, 28, 1)
+ FIELD(CR1, OVER8, 15, 1)
+ FIELD(CR1, M0, 12, 1)
+ FIELD(CR1, PCE, 10, 1)
+ FIELD(CR1, TXEIE, 7, 1)
+ FIELD(CR1, RXNEIE, 5, 1)
+ FIELD(CR1, TE, 3, 1)
+ FIELD(CR1, RE, 2, 1)
+ FIELD(CR1, UE, 0, 1)
+REG32(CR2, 0x04)
+REG32(CR3, 0x08)
+ FIELD(CR3, OVRDIS, 12, 1)
+REG32(BRR, 0x0C)
+REG32(GTPR, 0x10)
+REG32(RTOR, 0x14)
+REG32(RQR, 0x18)
+REG32(ISR, 0x1C)
+ FIELD(ISR, TXE, 7, 1)
+ FIELD(ISR, RXNE, 5, 1)
+ FIELD(ISR, ORE, 3, 1)
+REG32(ICR, 0x20)
+REG32(RDR, 0x24)
+REG32(TDR, 0x28)
+
+#define NVIC_ISPR1 0XE000E204
+#define NVIC_ICPR1 0xE000E284
+#define USART1_IRQ 37
+
+static bool check_nvic_pending(QTestState *qts, unsigned int n)
+{
+ /* No USART interrupts are less than 32 */
+ assert(n > 32);
+ n -= 32;
+ return qtest_readl(qts, NVIC_ISPR1) & (1 << n);
+}
+
+static bool clear_nvic_pending(QTestState *qts, unsigned int n)
+{
+ /* No USART interrupts are less than 32 */
+ assert(n > 32);
+ n -= 32;
+ qtest_writel(qts, NVIC_ICPR1, (1 << n));
+ return true;
+}
+
+/*
+ * Wait indefinitely for the flag to be updated.
+ * If this is run on a slow CI runner,
+ * the meson harness will timeout after 10 minutes for us.
+ */
+static bool usart_wait_for_flag(QTestState *qts, uint32_t event_addr,
+ uint32_t flag)
+{
+ while (true) {
+ if ((qtest_readl(qts, event_addr) & flag)) {
+ return true;
+ }
+ g_usleep(1000);
+ }
+
+ return false;
+}
+
+static void usart_receive_string(QTestState *qts, int sock_fd, const char *in,
+ char *out)
+{
+ int i, in_len = strlen(in);
+
+ g_assert_true(send(sock_fd, in, in_len, 0) == in_len);
+ for (i = 0; i < in_len; i++) {
+ g_assert_true(usart_wait_for_flag(qts,
+ USART1_BASE_ADDR + A_ISR, R_ISR_RXNE_MASK));
+ out[i] = qtest_readl(qts, USART1_BASE_ADDR + A_RDR);
+ }
+ out[i] = '\0';
+}
+
+static void usart_send_string(QTestState *qts, const char *in)
+{
+ int i, in_len = strlen(in);
+
+ for (i = 0; i < in_len; i++) {
+ qtest_writel(qts, USART1_BASE_ADDR + A_TDR, in[i]);
+ g_assert_true(usart_wait_for_flag(qts,
+ USART1_BASE_ADDR + A_ISR, R_ISR_TXE_MASK));
+ }
+}
+
+/* Init the RCC clocks to run at 80 MHz */
+static void init_clocks(QTestState *qts)
+{
+ uint32_t value;
+
+ /* MSIRANGE can be set only when MSI is OFF or READY */
+ qtest_writel(qts, (RCC_BASE_ADDR + A_CR), R_CR_MSION_MASK);
+
+ /* Clocking from MSI, in case MSI was not the default source */
+ qtest_writel(qts, (RCC_BASE_ADDR + A_CFGR), 0);
+
+ /*
+ * Update PLL and set MSI as the source clock.
+ * PLLM = 1 --> 000
+ * PLLN = 40 --> 40
+ * PPLLR = 2 --> 00
+ * PLLDIV = unused, PLLP = unused (SAI3), PLLQ = unused (48M1)
+ * SRC = MSI --> 01
+ */
+ qtest_writel(qts, (RCC_BASE_ADDR + A_PLLCFGR), R_PLLCFGR_PLLREN_MASK |
+ (40 << R_PLLCFGR_PLLN_SHIFT) |
+ (0b01 << R_PLLCFGR_PLLSRC_SHIFT));
+
+ /* PLL activation */
+
+ value = qtest_readl(qts, (RCC_BASE_ADDR + A_CR));
+ qtest_writel(qts, (RCC_BASE_ADDR + A_CR), value | R_CR_PLLON_MASK);
+
+ /* RCC_CFGR is OK by defaut */
+ qtest_writel(qts, (RCC_BASE_ADDR + A_CFGR), 0);
+
+ /* CCIPR : no periph clock by default */
+ qtest_writel(qts, (RCC_BASE_ADDR + A_CCIPR), 0);
+
+ /* Switches on the PLL clock source */
+ value = qtest_readl(qts, (RCC_BASE_ADDR + A_CFGR));
+ qtest_writel(qts, (RCC_BASE_ADDR + A_CFGR), (value & ~R_CFGR_SW_MASK) |
+ (0b11 << R_CFGR_SW_SHIFT));
+
+ /* Enable SYSCFG clock enabled */
+ qtest_writel(qts, (RCC_BASE_ADDR + A_APB2ENR), R_APB2ENR_SYSCFGEN_MASK);
+
+ /* Enable the IO port B clock (See p.252) */
+ qtest_writel(qts, (RCC_BASE_ADDR + A_AHB2ENR), R_AHB2ENR_GPIOBEN_MASK);
+
+ /* Enable the clock for USART1 (cf p.259) */
+ /* We rewrite SYSCFGEN to not disable it */
+ qtest_writel(qts, (RCC_BASE_ADDR + A_APB2ENR),
+ R_APB2ENR_SYSCFGEN_MASK | R_APB2ENR_USART1EN_MASK);
+
+ /* TODO: Enable usart via gpio */
+
+ /* Set PCLK as the clock for USART1(cf p.272) i.e. reset both bits */
+ qtest_writel(qts, (RCC_BASE_ADDR + A_CCIPR), 0);
+
+ /* Reset USART1 (see p.249) */
+ qtest_writel(qts, (RCC_BASE_ADDR + A_APB2RSTR), 1 << 14);
+ qtest_writel(qts, (RCC_BASE_ADDR + A_APB2RSTR), 0);
+}
+
+static void init_uart(QTestState *qts)
+{
+ uint32_t cr1;
+
+ init_clocks(qts);
+
+ /*
+ * For 115200 bauds, see p.1349.
+ * The clock has a frequency of 80Mhz,
+ * for 115200, we have to put a divider of 695 = 0x2B7.
+ */
+ qtest_writel(qts, (USART1_BASE_ADDR + A_BRR), 0x2B7);
+
+ /*
+ * Set the oversampling by 16,
+ * disable the parity control and
+ * set the word length to 8. (cf p.1377)
+ */
+ cr1 = qtest_readl(qts, (USART1_BASE_ADDR + A_CR1));
+ cr1 &= ~(R_CR1_M1_MASK | R_CR1_M0_MASK | R_CR1_OVER8_MASK | R_CR1_PCE_MASK);
+ qtest_writel(qts, (USART1_BASE_ADDR + A_CR1), cr1);
+
+ /* Enable the transmitter, the receiver and the USART. */
+ qtest_writel(qts, (USART1_BASE_ADDR + A_CR1),
+ R_CR1_UE_MASK | R_CR1_RE_MASK | R_CR1_TE_MASK);
+}
+
+static void test_write_read(void)
+{
+ QTestState *qts = qtest_init("-M b-l475e-iot01a");
+
+ /* Test that we can write and retrieve a value from the device */
+ qtest_writel(qts, USART1_BASE_ADDR + A_TDR, 0xFFFFFFFF);
+ const uint32_t tdr = qtest_readl(qts, USART1_BASE_ADDR + A_TDR);
+ g_assert_cmpuint(tdr, ==, 0x000001FF);
+}
+
+static void test_receive_char(void)
+{
+ int sock_fd;
+ uint32_t cr1;
+ QTestState *qts = qtest_init_with_serial("-M b-l475e-iot01a", &sock_fd);
+
+ init_uart(qts);
+
+ /* Try without initializing IRQ */
+ g_assert_true(send(sock_fd, "a", 1, 0) == 1);
+ usart_wait_for_flag(qts, USART1_BASE_ADDR + A_ISR, R_ISR_RXNE_MASK);
+ g_assert_cmphex(qtest_readl(qts, USART1_BASE_ADDR + A_RDR), ==, 'a');
+ g_assert_false(check_nvic_pending(qts, USART1_IRQ));
+
+ /* Now with the IRQ */
+ cr1 = qtest_readl(qts, (USART1_BASE_ADDR + A_CR1));
+ cr1 |= R_CR1_RXNEIE_MASK;
+ qtest_writel(qts, USART1_BASE_ADDR + A_CR1, cr1);
+ g_assert_true(send(sock_fd, "b", 1, 0) == 1);
+ usart_wait_for_flag(qts, USART1_BASE_ADDR + A_ISR, R_ISR_RXNE_MASK);
+ g_assert_cmphex(qtest_readl(qts, USART1_BASE_ADDR + A_RDR), ==, 'b');
+ g_assert_true(check_nvic_pending(qts, USART1_IRQ));
+ clear_nvic_pending(qts, USART1_IRQ);
+
+ close(sock_fd);
+
+ qtest_quit(qts);
+}
+
+static void test_send_char(void)
+{
+ int sock_fd;
+ char s[1];
+ uint32_t cr1;
+ QTestState *qts = qtest_init_with_serial("-M b-l475e-iot01a", &sock_fd);
+
+ init_uart(qts);
+
+ /* Try without initializing IRQ */
+ qtest_writel(qts, USART1_BASE_ADDR + A_TDR, 'c');
+ g_assert_true(recv(sock_fd, s, 1, 0) == 1);
+ g_assert_cmphex(s[0], ==, 'c');
+ g_assert_false(check_nvic_pending(qts, USART1_IRQ));
+
+ /* Now with the IRQ */
+ cr1 = qtest_readl(qts, (USART1_BASE_ADDR + A_CR1));
+ cr1 |= R_CR1_TXEIE_MASK;
+ qtest_writel(qts, USART1_BASE_ADDR + A_CR1, cr1);
+ qtest_writel(qts, USART1_BASE_ADDR + A_TDR, 'd');
+ g_assert_true(recv(sock_fd, s, 1, 0) == 1);
+ g_assert_cmphex(s[0], ==, 'd');
+ g_assert_true(check_nvic_pending(qts, USART1_IRQ));
+ clear_nvic_pending(qts, USART1_IRQ);
+
+ close(sock_fd);
+
+ qtest_quit(qts);
+}
+
+static void test_receive_str(void)
+{
+ int sock_fd;
+ char s[10];
+ QTestState *qts = qtest_init_with_serial("-M b-l475e-iot01a", &sock_fd);
+
+ init_uart(qts);
+
+ usart_receive_string(qts, sock_fd, "hello", s);
+ g_assert_true(memcmp(s, "hello", 5) == 0);
+
+ close(sock_fd);
+
+ qtest_quit(qts);
+}
+
+static void test_send_str(void)
+{
+ int sock_fd;
+ char s[10];
+ QTestState *qts = qtest_init_with_serial("-M b-l475e-iot01a", &sock_fd);
+
+ init_uart(qts);
+
+ usart_send_string(qts, "world");
+ g_assert_true(recv(sock_fd, s, 10, 0) == 5);
+ g_assert_true(memcmp(s, "world", 5) == 0);
+
+ close(sock_fd);
+
+ qtest_quit(qts);
+}
+
+int main(int argc, char **argv)
+{
+ int ret;
+
+ g_test_init(&argc, &argv, NULL);
+ g_test_set_nonfatal_assertions();
+
+ qtest_add_func("stm32l4x5/usart/write_read", test_write_read);
+ qtest_add_func("stm32l4x5/usart/receive_char", test_receive_char);
+ qtest_add_func("stm32l4x5/usart/send_char", test_send_char);
+ qtest_add_func("stm32l4x5/usart/receive_str", test_receive_str);
+ qtest_add_func("stm32l4x5/usart/send_str", test_send_str);
+ ret = g_test_run();
+
+ return ret;
+}
+
projects / thirdparty / qemu.git / commitdiff
