A following patch will add a new MMIO region for nested SMMU instances.

This macro will be repeatedly used to set offsets and MMIO sizes in both
virt and virt-acpi-build.

Signed-off-by: Nicolin Chen <nicolinc@nvidia.com>
---
 hw/arm/virt.c         | 2 +-
 include/hw/arm/virt.h | 3 +++
 2 files changed, 4 insertions(+), 1 deletion(-)

diff --git a/hw/arm/virt.c b/hw/arm/virt.c
index be3d8b0ce6..ef59c79ca3 100644
--- a/hw/arm/virt.c
+++ b/hw/arm/virt.c
@@ -170,7 +170,7 @@ static const MemMapEntry base_memmap[] = {
     [VIRT_FW_CFG] =             { 0x09020000, 0x00000018 },
     [VIRT_GPIO] =               { 0x09030000, 0x00001000 },
     [VIRT_SECURE_UART] =        { 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},
diff --git a/include/hw/arm/virt.h b/include/hw/arm/virt.h
index e0c07527c4..b35c4f62d7 100644
--- a/include/hw/arm/virt.h
+++ b/include/hw/arm/virt.h
@@ -48,6 +48,9 @@
 /* See Linux kernel arch/arm64/include/asm/pvclock-abi.h */
 #define PVTIME_SIZE_PER_CPU 64
 
+/* MMIO region size for SMMUv3 */
+#define SMMU_IO_LEN         (0x20000)
+
 enum {
     VIRT_FLASH,
     VIRT_MEM,
-- 
2.43.0