hw/arm/virt: Add an SMMU_IO_LEN macro

This is useful as the subsequent support for new SMMUv3 dev will also
use the same.

Signed-off-by: Nicolin Chen <nicolinc@nvidia.com>
Reviewed-by: Donald Dutile <ddutile@redhat.com>
Reviewed-by: Eric Auger <eric.auger@redhat.com>
Tested-by: Nathan Chen <nathanc@nvidia.com>
Reviewed-by: Jonathan Cameron <jonathan.cameron@huawei.com>
Tested-by: Eric Auger <eric.auger@redhat.com>
Tested-by: Nicolin Chen <nicolinc@nvidia.com>
Signed-off-by: Shameer Kolothum <shameerali.kolothum.thodi@huawei.com>
Signed-off-by: Shameer Kolothum <skolothumtho@nvidia.com>
Reviewed-by: Nicolin Chen <nicolinc@nvidia.com>
Message-id: 20250829082543.7680-6-skolothumtho@nvidia.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

diff --git a/hw/arm/virt.c b/hw/arm/virt.c
index bebe2d8cea9555fb6dd3669002f48b07d4de2817..64b4dcf6071d142bbbd6ddae65343ff7c047fe16 100644 (file)
--- a/hw/arm/virt.c
+++ b/hw/arm/virt.c
@@ -151,6 +151,9 @@ static void arm_virt_compat_set(MachineClass *mc)
 #define LEGACY_RAMLIMIT_GB 255
 #define LEGACY_RAMLIMIT_BYTES (LEGACY_RAMLIMIT_GB * GiB)
 
+/* MMIO region size for SMMUv3 */
+#define SMMU_IO_LEN 0x20000
+
 /* Addresses and sizes of our components.
  * 0..128MB is space for a flash device so we can run bootrom code such as UEFI.
  * 128MB..256MB is used for miscellaneous device I/O.
@@ -182,7 +185,7 @@ static const MemMapEntry base_memmap[] = {
     [VIRT_FW_CFG] =             { 0x09020000, 0x00000018 },
     [VIRT_GPIO] =               { 0x09030000, 0x00001000 },
     [VIRT_UART1] =              { 0x09040000, 0x00001000 },
-    [VIRT_SMMU] =               { 0x09050000, 0x00020000 },
+    [VIRT_SMMU] =               { 0x09050000, SMMU_IO_LEN },
     [VIRT_PCDIMM_ACPI] =        { 0x09070000, MEMORY_HOTPLUG_IO_LEN },
     [VIRT_ACPI_GED] =           { 0x09080000, ACPI_GED_EVT_SEL_LEN },
     [VIRT_NVDIMM_ACPI] =        { 0x09090000, NVDIMM_ACPI_IO_LEN},