target/sh4: Restrict SoftMMU mmu_index() to TCG

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-ID: <20250401080938.32278-20-philmd@linaro.org>

target/s390x: Restrict SoftMMU mmu_index() to TCG

Convert CPUClass::mmu_index() to TCGCPUOps::mmu_index(),
restricting s390x_cpu_mmu_index() to TCG #ifdef.

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-ID: <20250401080938.32278-19-philmd@linaro.org>

target/rx: Restrict SoftMMU mmu_index() to TCG

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-ID: <20250401080938.32278-18-philmd@linaro.org>

target/riscv: Restrict SoftMMU mmu_index() to TCG

Move riscv_cpu_mmu_index() to the TCG-specific file,
convert CPUClass::mmu_index() to TCGCPUOps::mmu_index().

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-ID: <20250401080938.32278-17-philmd@linaro.org>

target/ppc: Restrict SoftMMU mmu_index() to TCG

Convert CPUClass::mmu_index() to TCGCPUOps::mmu_index(),
restricting ppc_cpu_mmu_index() to TCG #ifdef.

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-ID: <20250401080938.32278-16-philmd@linaro.org>

target/openrisc: Restrict SoftMMU mmu_index() to TCG

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-ID: <20250401080938.32278-15-philmd@linaro.org>

target/mips: Restrict SoftMMU mmu_index() to TCG

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-ID: <20250401080938.32278-14-philmd@linaro.org>

target/microblaze: Restrict SoftMMU mmu_index() to TCG

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-ID: <20250401080938.32278-13-philmd@linaro.org>

target/m68k: Restrict SoftMMU mmu_index() to TCG

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-ID: <20250401080938.32278-12-philmd@linaro.org>

target/loongarch: Restrict SoftMMU mmu_index() to TCG

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-ID: <20250401080938.32278-11-philmd@linaro.org>

target/i386: Restrict SoftMMU mmu_index() to TCG

Move x86_cpu_mmu_index() to tcg-cpu.c, convert
CPUClass::mmu_index() to TCGCPUOps::mmu_index().

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-ID: <20250401080938.32278-10-philmd@linaro.org>

target/i386: Restrict cpu_mmu_index_kernel() to TCG

Move cpu_mmu_index_kernel() to seg_helper.c.

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-ID: <20250401080938.32278-9-philmd@linaro.org>

target/i386: Remove unused cpu_(ldub, stb)_kernel macros

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-ID: <20250401080938.32278-8-philmd@linaro.org>

target/hppa: Restrict SoftMMU mmu_index() to TCG

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-ID: <20250401080938.32278-7-philmd@linaro.org>

target/avr: Restrict SoftMMU mmu_index() to TCG

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-ID: <20250401080938.32278-6-philmd@linaro.org>

target/arm: Restrict SoftMMU mmu_index() to TCG

Move arm_cpu_mmu_index() within CONFIG_TCG #ifdef'ry,
convert CPUClass::mmu_index() to TCGCPUOps::mmu_index().

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-ID: <20250401080938.32278-5-philmd@linaro.org>

target/alpha: Restrict SoftMMU mmu_index() to TCG

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-ID: <20250401080938.32278-4-philmd@linaro.org>

accel/tcg: Introduce TCGCPUOps::mmu_index() callback

We'll move CPUClass::mmu_index() to TCGCPUOps::mmu_index().

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-ID: <20250401080938.32278-3-philmd@linaro.org>

hw/core/cpu: Update CPUClass::mmu_index docstring

Since commits 32a8ea12fab..90b7022e698 (target: "Split out
TARGET_env_mmu_index"), target's memory_rw_debug() callbacks
use the target's TARGET_env_mmu_index(), not the generic
CPUClass::mmu_index() callback. Update the documentation.

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-ID: <20250401080938.32278-2-philmd@linaro.org>

target/rx: Fix copy/paste typo (riscv -> rx)

Rename riscv_cpu_mmu_index() -> rx_cpu_mmu_index().

Fixes: ef5cc166da1 ("target/rx: Populate CPUClass.mmu_index")
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-ID: <20250401072052.25892-1-philmd@linaro.org>

accel/tcg: Remove cpu-all.h, exec-all.h from tb-internal.h

Not used by tb-internal.h, but add an include for
target_page.h in tb-maint.c.

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

accel/tcg: Remove page_protect

Merge the user-only page_protect function with the user-only
implementation of tb_lock_page0.  This avoids pulling
page-protection.h into tb-internal.h.

Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

accel/tcg: Move get_page_addr_code* declarations

Move the declarations from exec/exec-all.h to the
private accel/tcg/internal-common.h.

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

include/exec: Move tb_{,set_}page_addr[01] to translation-block.h

Move the accessor functions for TranslationBlock
into the header related to the structure.

Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

include/exec: Move TLB_MMIO, TLB_DISCARD_WRITE to slow flags

Recover two bits from the inline flags.

Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

accel/tcg: Rebuild full flags in tlb_reset_dirty_range_locked

Undo the split between inline and slow flags before masking.

Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

accel/tcg: Pass CPUTLBEntryFull to tlb_reset_dirty_range_locked

While we're renaming things, don't modify addr; save it for
reuse in the qatomic_set.  Compute the host address into a
new local variable.

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

accel/tcg: Fix argument types of tlb_reset_dirty

The arguments to tlb_reset_dirty are host pointers.
The conversion from ram_addr_t was done in the sole
caller, tlb_reset_dirty_range_all.

Fixes: e554861766d ("exec: prepare for splitting")
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

exec/cpu-all: extract tlb flags defines to exec/tlb-flags.h

Signed-off-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-ID: <20250320223002.2915728-3-pierrick.bouvier@linaro.org>

meson: Only allow CONFIG_USER_ONLY from certain source sets

Poison CONFIG_USER_ONLY and CONFIG_SOFTMMU unless
the compilation unit is in specific_ss, libuser_ss,
or libsystem_ss.  This is intended to prevent files
being incorrectly added to common_ss.

Remove #ifndef CONFIG_USER_ONLY / #error / #endif blocks.
All they do is trigger the poison error.

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

target/riscv: Remove ifndef CONFIG_USER_ONLY from cpu_cfg.h

While RISCVCPUConfig.satp_mode is unused for user-only,
this header is used from disas/riscv.h, whose users are
only built once.  The savings of 4 bytes isn't worth it.

Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

include/qemu: Remove ifndef CONFIG_USER_ONLY from accel.h

While setup_post and has_memory will not be used for
CONFIG_USER_ONLY, let the struct have constant layout.

Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

include/system: Remove ifndef CONFIG_USER_ONLY in qtest.h

This is include/system, so CONFIG_USER_ONLY will never be true.

Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

include/exec: Protect icount_enabled from poisoned symbols

Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

include/exec: Split out icount.h

Split icount stuff from system/cpu-timers.h.
There are 17 files which only require icount.h, 7 that only
require cpu-timers.h, and 7 that require both.

Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

include/hw/s390x: Remove ifndef CONFIG_USER_ONLY in css.h

We were hiding a number of declarations from user-only,
although it hurts nothing to allow them.

Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

include/hw/intc: Remove ifndef CONFIG_USER_ONLY from armv7m_nvic.h

We were hiding a number of declarations from user-only,
although it hurts nothing to allow them.  The inlines
for user-only are unused.

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

include/hw/core: Drop ifndef CONFIG_USER_ONLY from cpu.h

We were hiding a number of declarations from user-only,
although it hurts nothing to allow them.

Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

include/exec: Drop ifndef CONFIG_USER_ONLY from cpu-common.h

We were hiding a number of declarations from user-only,
although it hurts nothing to allow them.

Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

plugins: Move api.c, core.c to libuser_ss, libsystem_ss

Headers used by these files require CONFIG_USER_ONLY.

Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

system: Move most files to libsystem_ss

Some of the headers used require CONFIG_USER_ONLY.
Do not move vl.c, because it has other include dependencies
that are present in system_ss.

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

hw/core: Move unconditional files to libsystem_ss, libuser_ss

Many of the headers used by these require CONFIG_USER_ONLY.

Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

include/exec: Split out watchpoint.h

Relatively few objects in qemu care about watchpoints, so split
out to a new header.  Removes an instance of CONFIG_USER_ONLY
from hw/core/cpu.h.

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

semihosting: Assert is_user in user-only semihosting_enabled

Suggested-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

semihosting: Move user-only implementation out-of-line

Avoid testing CONFIG_USER_ONLY in semihost.h.
The only function that's required is semihosting_enabled.

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

target/xtensa: Restrict semihosting tests to system mode

We do not set CONFIG_SEMIHOSTING in
configs/targets/xtensa*-linux-user.mak.

Do not raise SIGILL for user-only unconditionally.

Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

target/mips: Restrict semihosting tests to system mode

We do not set CONFIG_SEMIHOSTING in
configs/targets/mips*-linux-user.mak.

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

accel/tcg: Use libuser_ss and libsystem_ss

While some of these files are built exactly once, due
to being in only libuser_ss or libsystem_ss, some of
the includes that they depend on require CONFIG_USER_ONLY.
So make use of the common infrastructure to allow that.

Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

gdbstub: Move syscalls.c out of common_ss

Copy to libuser_ss and libsystem_ss.
This file uses semihosting/semihost.h, which has separate
implementations with and without CONFIG_USER_ONLY.

Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

meson: Introduce top-level libuser_ss and libsystem_ss

We already have two subdirectories for which we need
to build files twice, for user vs system modes.
Move this handling to the top level.

This cannot be combined with user_ss or system_ss,
because the formulation has not been extended to support
configuration symbols.

Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

exec: Restrict memory-internal.h to system/

Only file units within the system/ directory need access to
"memory-internal.h". Restrict its scope by moving it there.

The comment from commit 9d70618c684 ("memory-internal.h:
Remove obsolete claim that header is obsolete") is now obsolete,
remove it.

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: David Hildenbrand <david@redhat.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-ID: <20250317161329.40300-3-philmd@linaro.org>

accel/tcg: Remove unnecesary inclusion of memory-internal.h in cputlb.c

At some point cputlb.c stopped depending on the
"exec/memory-internal.h" header. Clean that now.

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Reviewed-by: David Hildenbrand <david@redhat.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-ID: <20250317161329.40300-2-philmd@linaro.org>

include/system: Move exec/ramblock.h to system/ramblock.h

Convert the existing includes with sed.

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

include/system: Move exec/ram_addr.h to system/ram_addr.h

Convert the existing includes with sed.

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

include/system: Move exec/ioport.h to system/ioport.h

Convert the existing includes with sed.

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

include/system: Move exec/address-spaces.h to system/address-spaces.h

Convert the existing includes with sed.

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

include/system: Move exec/memory.h to system/memory.h

Convert the existing includes with

  sed -i ,exec/memory.h,system/memory.h,g

Move the include within cpu-all.h into a !CONFIG_USER_ONLY block.

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

include/exec: Split out mmap-lock.h

Split out mmap_lock, et al from page-protection.h
to a new header.

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

accel/tcg: Remove mmap_lock/unlock from watchpoint.c

The mmap_lock is user-only, whereas watchpoint.c
is only compiled for system mode.

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

accel/tcg: Implement translator_ld*_end

Add a new family of translator load functions which take
an absolute endianness value in the form of MO_BE/MO_LE.
Expand the other translator_ld* functions on top of this.
Remove exec/tswap.h from translator.c.

Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

accel/tcg: Use cpu_ld*_code_mmu in translator.c

Cache the mmu index in DisasContextBase.
Perform the read on host endianness, which lets us
share code with the translator_ld fast path.

Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

accel/tcg: Perform aligned atomic reads in translator_ld

Perform aligned atomic reads in translator_ld, if possible.
According to

https://lore.kernel.org/qemu-devel/20240607101403.1109-1-jim.shu@sifive.com/

this is required for RISC-V Ziccif.

Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

include/exec: Inline *_code memory operations

These need to be per-target for 'abi_ptr' and endianness.
These expand inline to the *_mmu api with a lookup of the
target's cpu_mmu_index() and ra == 0.

Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

include/exec: Inline *_data memory operations

These need to be per-target for 'abi_ptr'.  Expand inline to
the *_data_ra api with ra == 0.

Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

include/exec: Inline *_data_ra memory operations

These need to be per-target for 'abi_ptr'.  Expand inline to
the *_mmuidx_ra api with a lookup of the target's cpu_mmu_index().

Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

include/exec: Inline *_mmuidx_ra memory operations

These need to be per-target for 'abi_ptr'.  Expand inline to
the *_mmu api with trivial massaging of the arguments.

Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

include/exec: Split out accel/tcg/cpu-mmu-index.h

The implementation of cpu_mmu_index was split between cpu-common.h
and cpu-all.h, depending on CONFIG_USER_ONLY.  We already have the
plumbing common to user and system mode.  Using MMU_USER_IDX
requires the cpu.h for a specific target, and so is restricted to
when we're compiling per-target.

Include the new header only where needed.

Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

include/exec: Split out cpu-ldst-common.h

Split out the *_mmu api, which no longer uses
target specific argument types.

Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

include/exec: Use vaddr for *_mmu guest memory access routines

Use vaddr only for the newest api, because it has the least
number of uses and therefore is the easiest to audit.

Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

accel/tcg: Fix cpu_ld*_code_mmu for user mode

These routines are buggy in multiple ways:
  - Use of target-endian loads, then a bswap that
    depends on the host endiannness.
  - A non-unwinding code load must set_helper_retaddr 1,
    which is magic within adjust_signal_pc.
  - cpu_ldq_code_mmu used MMU_DATA_LOAD

The bugs are hidden because all current uses of cpu_ld*_code_mmu
are from system mode.

Fixes: 2899062614a ("accel/tcg: Add cpu_ld*_code_mmu")
Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

accel/tcg: Build plugin-gen.c once

We assert that env immediately follows CPUState in cpu-all.h.
Change the offsetof expressions to be based on CPUState instead
of ArchCPU.

Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

accel/tcg: Build user-exec-stub.c once

CONFIG_USER_ONLY == !CONFIG_SYSTEM_ONLY.
Therefore it's cleaner to just add to user_ss.

Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

system/ioport: make compilation unit common

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-ID: <20250317183417.285700-19-pierrick.bouvier@linaro.org>

system/memory: make compilation unit common

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-ID: <20250317183417.285700-18-pierrick.bouvier@linaro.org>

include/exec/memory: move devend functions to memory-internal.h

Only system/physmem.c and system/memory.c use those functions, so we can
move then to internal header.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-ID: <20250317183417.285700-17-pierrick.bouvier@linaro.org>

include/exec/memory: extract devend_big_endian from devend_memop

we'll use it in system/memory.c.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-ID: <20250317183417.285700-16-pierrick.bouvier@linaro.org>

system/physmem: compilation unit is now common to all targets

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-ID: <20250317183417.285700-15-pierrick.bouvier@linaro.org>

system/xen: remove inline stubs

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-ID: <20250317183417.285700-14-pierrick.bouvier@linaro.org>

hw/xen: add stubs for various functions

Those symbols are used by system/physmem.c, and are called only if
xen_enabled() (which happens only if CONFIG_XEN is set and xen is
available).

So we can crash the stubs in case those are called, as they are linked
only when CONFIG_XEN is not set.

Acked-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Anthony PERARD <anthony.perard@vates.tech>
Signed-off-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-ID: <20250317183417.285700-13-pierrick.bouvier@linaro.org>

exec/ram_addr: call xen_hvm_modified_memory only if xen is enabled

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-ID: <20250317183417.285700-12-pierrick.bouvier@linaro.org>

system/kvm: make kvm_flush_coalesced_mmio_buffer() accessible for common code

This function is used by system/physmem.c will be turn into common code
in next commit.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-ID: <20250317183417.285700-11-pierrick.bouvier@linaro.org>

exec/ram_addr: remove dependency on cpu.h

Needed so compilation units including it can be common.

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-ID: <20250317183417.285700-10-pierrick.bouvier@linaro.org>

exec/memory-internal: remove dependency on cpu.h

Needed so compilation units including it can be common.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-ID: <20250317183417.285700-9-pierrick.bouvier@linaro.org>

exec/exec-all: remove dependency on cpu.h

Previous commit changed files relying transitively on it.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-ID: <20250317183417.285700-8-pierrick.bouvier@linaro.org>

codebase: prepare to remove cpu.h from exec/exec-all.h

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-ID: <20250317183417.285700-7-pierrick.bouvier@linaro.org>

exec/memory.h: make devend_memop "target defines" agnostic

Will allow to make system/memory.c common later.

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-ID: <20250317183417.285700-6-pierrick.bouvier@linaro.org>

exec/memory_ldst_phys: extract memory_ldst_phys declarations from cpu-all.h

They are now accessible through exec/memory.h instead, and we make sure
all variants are available for common or target dependent code.

Move stl_phys_notdirty function as well.
Cached endianness agnostic version rely on st/ld*_p, which is available
through tswap.h.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-ID: <20250317183417.285700-5-pierrick.bouvier@linaro.org>

exec/memory_ldst: extract memory_ldst declarations from cpu-all.h

They are now accessible through exec/memory.h instead, and we make sure
all variants are available for common or target dependent code.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-ID: <20250317183417.285700-4-pierrick.bouvier@linaro.org>

exec/tswap: implement {ld,st}.*_p as functions instead of macros

Defining functions allows to use them from common code, by not depending
on TARGET_BIG_ENDIAN.
Remove previous macros from exec/cpu-all.h.
By moving them out of cpu-all.h, we'll be able to break dependency on
cpu.h for memory related functions coming in next commits.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-ID: <20250317183417.285700-3-pierrick.bouvier@linaro.org>

exec/tswap: target code can use TARGET_BIG_ENDIAN instead of target_words_bigendian()

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-ID: <20250317183417.285700-2-pierrick.bouvier@linaro.org>

Merge tag 'pull-avr-20250422' of https://gitlab.com/rth7680/qemu into staging

target/avr: Fix buffer read in avr_print_insn
target/avr: Improve decode of LDS, STS
target/avr: Move cpu register accesses into system memory
target/avr: Increase TARGET_PAGE_BITS to 10

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# gpg:                issuer "richard.henderson@linaro.org"
# gpg: Good signature from "Richard Henderson <richard.henderson@linaro.org>" [full]
# Primary key fingerprint: 7A48 1E78 868B 4DB6 A85A  05C0 64DF 38E8 AF7E 215F

* tag 'pull-avr-20250422' of https://gitlab.com/rth7680/qemu:
  target/avr: Increase TARGET_PAGE_BITS to 10
  hw/avr: Prepare for TARGET_PAGE_SIZE > 256
  target/avr: Use do_stb in avr_cpu_do_interrupt
  target/avr: Use cpu_stb_mmuidx_ra in helper_fullwr
  target/avr: Remove NUMBER_OF_IO_REGISTERS
  target/avr: Move cpu register accesses into system memory
  target/avr: Add defines for i/o port registers
  target/avr: Remove OFFSET_CPU_REGISTERS
  target/avr: Improve decode of LDS, STS

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>

Merge tag 'pull-request-2025-04-23' of https://gitlab.com/thuth/qemu into staging

* Remove the obsolete s390-ccw-virtio-2.9 machine type
* Prepare the dump-skeys QMP command for the universal binary project
* Add compat machine types for 10.1
* Convert the remaining Avocado tests to the functional framework
* Some more small fixes for the functional tests

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# gpg:                issuer "thuth@redhat.com"
# gpg: Good signature from "Thomas Huth <th.huth@gmx.de>" [full]
# gpg:                 aka "Thomas Huth <thuth@redhat.com>" [full]
# gpg:                 aka "Thomas Huth <huth@tuxfamily.org>" [full]
# gpg:                 aka "Thomas Huth <th.huth@posteo.de>" [unknown]
# Primary key fingerprint: 27B8 8847 EEE0 2501 18F3  EAB9 2ED9 D774 FE70 2DB5

* tag 'pull-request-2025-04-23' of https://gitlab.com/thuth/qemu: (29 commits)
  MAINTAINERS: Add functional tests that are not covered yet
  tests/functional: Remove unnecessary import statements
  tests/functional: Remove semicolons at the end of lines
  Remove the remainders of the Avocado tests
  docs/devel/testing: Dissolve the ci-definitions.rst.inc file
  gitlab-ci: Update QEMU_JOB_AVOCADO and QEMU_CI_AVOCADO_TESTING
  tests/functional: Convert the SMMU test to the functional framework
  tests/functional: Use the tuxrun kernel for the aarch64 replay test
  tests/functional: Use the tuxrun kernel for the x86 replay test
  tests/avocado: Remove the boot_linux.py tests
  tests/functional: Convert the 64-bit big endian Wheezy mips test
  tests/functional: Convert the 64-bit little endian Wheezy mips test
  tests/functional: Convert the 32-bit little endian Wheezy mips test
  tests/functional: Convert the 32-bit big endian Wheezy mips test
  tests/avocado: Remove the LinuxKernelTest class
  tests/functional: Convert the i386 replay avocado test
  tests/functional: Convert reverse_debugging tests to the functional framework
  tests/functional: Move the check for the parameters from avocado to functional
  gitlab-ci: Remove the avocado tests from the CI pipelines
  tests/functional/test_vnc: skip test if no crypto backend available
  ...

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>

Merge tag 'for-upstream' of https://gitlab.com/bonzini/qemu into staging

* target/i386: Fix model number of Zhaoxin YongFeng vCPU template
* target/i386: Reset parked vCPUs together with the online ones
* scsi: add conversion from ENODEV to sense
* target/i386: tweaks to flag handling
* target/i386: tweaks to SHLD/SHRD code generation
* target/i386: remove some global temporaries from TCG
* target/i386: pull emulator outside target/i386/hvf
* host/i386: consolidate getting host CPU vendor
* rust/hpet: preparation for migration support
* rust/pl011: bring over more commits from C version

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# gpg: Signature made Wed 23 Apr 2025 05:40:00 EDT
# gpg:                using RSA key F13338574B662389866C7682BFFBD25F78C7AE83
# gpg:                issuer "pbonzini@redhat.com"
# gpg: Good signature from "Paolo Bonzini <bonzini@gnu.org>" [full]
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* tag 'for-upstream' of https://gitlab.com/bonzini/qemu: (34 commits)
  rust/hw/char/pl011: Extract DR write logic into separate function
  rust/hw/char/pl011: Extract extract DR read logic into separate function
  rust/vmstate_test: Fix typo in test_vmstate_macro_array_of_pointer_wrapped()
  rust/hpet: Fix a clippy error
  rust/hpet: convert HPETTimer index to u8 type
  rust/hpet: convert num_timers to u8 type
  i386/cpu: Consolidate the helper to get Host's vendor
  target/i386/emulate: remove flags_mask
  MAINTAINERS: add an entry for the x86 instruction emulator
  target/i386: move x86 instruction emulator out of hvf
  target/i386/emulate: add a panic.h
  target/i386: add a directory for x86 instruction emulator
  target/i386/hvf: rename some include guards
  target/i386/hvf: drop unused headers
  target/i386: rename lazy flags field and its type
  target/i386/hvf: provide and use simulate_{wrmsr, rdmsr} in emul_ops
  target/i386/hvf: provide and use write_mem in emul_ops
  target/i386/hvf: use emul_ops->read_mem in x86_emu.c
  target/i386: rename hvf_mmio_buf to emu_mmio_buf
  target/i386/hvf: provide and use handle_io in emul_ops
  ...

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>

Merge tag 'ipmi-for-qemu-10.0' of https://github.com/cminyard/qemu into staging

Some minor fixes for various things

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# gpg: Good signature from "Corey Minyard <cminyard@mvista.com>" [unknown]
# gpg:                 aka "Corey Minyard <corey@minyard.net>" [unknown]
# gpg:                 aka "Corey Minyard <minyard@mvista.com>" [unknown]
# gpg:                 aka "Corey Minyard <minyard@acm.org>" [unknown]
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* tag 'ipmi-for-qemu-10.0' of https://github.com/cminyard/qemu:
  ipmi/bmc-sim: add error handling for 'Set BMC Global Enables' command
  ipmi/bmc-sim: implement watchdog dont log flag
  ipmi/bmc-sim: Add 'Get Channel Info' command
  ipmi: add fwinfo to pci ipmi devices
  ipmi/pci-ipmi-bt: Rename copy-paste variables
  hw/ipmi: Move vmsd registration to device class

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>

rust/hw/char/pl011: Extract DR write logic into separate function

- Split `write()` DR case into `write_data_register()`

Signed-off-by: Rakesh Jeyasingh <rakeshjb010@gmail.com>
Link: https://lore.kernel.org/r/20250407181327.171563-3-rakeshjb010@gmail.com
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

rust/hw/char/pl011: Extract extract DR read logic into separate function

- Split `read()` DR case into `read_data_register()`

Signed-off-by: Rakesh Jeyasingh <rakeshjb010@gmail.com>
Link: https://lore.kernel.org/r/20250407181327.171563-2-rakeshjb010@gmail.com
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

rust/vmstate_test: Fix typo in test_vmstate_macro_array_of_pointer_wrapped()

test_vmstate_macro_array_of_pointer_wrapped() tests the 3rd element, so
fix the index.

Signed-off-by: Zhao Liu <zhao1.liu@intel.com>
Link: https://lore.kernel.org/r/20250414144943.1112885-5-zhao1.liu@intel.com
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

rust/hpet: Fix a clippy error

Carge clippy complained about:

error: casts from `u8` to `u32` can be expressed infallibly using `From`

So use `From` to convert `u8` to `u32`.

Signed-off-by: Zhao Liu <zhao1.liu@intel.com>
Link: https://lore.kernel.org/r/20250414144943.1112885-10-zhao1.liu@intel.com
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

rust/hpet: convert HPETTimer index to u8 type

The C version of HPET uses the uint8_t type for timer index ("tn"), and
usize type in Rust version will break migration between the C and Rust
versions.

So convert HPETTimer index' type to u8 (consistent with the C version of
HPET) to make it friendly for vmstate support.

Signed-off-by: Zhao Liu <zhao1.liu@intel.com>
Link: https://lore.kernel.org/r/20250414144943.1112885-8-zhao1.liu@intel.com
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

rust/hpet: convert num_timers to u8 type

The C version of HPET uses the uint8_t type for num_timers, and usize
type in Rust version will break migration between the C and Rust
versions.

So convert num_timers' type to u8 (consistent with the C version of
HPET) to make it friendly for vmstate support.

Note the commit 7bda68e8e2b0 ("qdev, rust/hpet: fix type of HPET
'timers property") supports the usize type property, but the uint8
property has to be re-supported now.

Signed-off-by: Zhao Liu <zhao1.liu@intel.com>
Link: https://lore.kernel.org/r/20250414144943.1112885-7-zhao1.liu@intel.com
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>