[3/6] hw/arm/virt-acpi-build: Add VIOT table for virtio-iommu

Commit Message

Jean-Philippe Brucker Aug. 10, 2021, 8:45 a.m. UTC

When a virtio-iommu is instantiated, describe it using the ACPI VIOT
table.

Signed-off-by: Jean-Philippe Brucker <[e-mail]>
---
 hw/arm/virt-acpi-build.c | 7 +++++++
 hw/arm/Kconfig           | 1 +
 2 files changed, 8 insertions(+)

Patch

diff --git a/hw/arm/virt-acpi-build.c b/hw/arm/virt-acpi-build.c
index 037cc1fd82..e2fa677d80 100644
--- a/hw/arm/virt-acpi-build.c
+++ b/hw/arm/virt-acpi-build.c
@@ -55,6 +55,7 @@ 
 #include "kvm_arm.h"
 #include "migration/vmstate.h"
 #include "hw/acpi/ghes.h"
+#include "hw/acpi/viot.h"
 
 #define ARM_SPI_BASE 32
 
@@ -849,6 +850,12 @@  void virt_acpi_build(VirtMachineState *vms, AcpiBuildTables *tables)
     }
 #endif
 
+    if (vms->iommu == VIRT_IOMMU_VIRTIO) {
+        acpi_add_table(table_offsets, tables_blob);
+        build_viot(tables_blob, tables->linker, vms->virtio_iommu_bdf,
+                   vms->oem_id, vms->oem_table_id);
+    }
+
     /* XSDT is pointed to by RSDP */
     xsdt = tables_blob->len;
     build_xsdt(tables_blob, tables->linker, table_offsets, vms->oem_id,
diff --git a/hw/arm/Kconfig b/hw/arm/Kconfig
index 4ba0aca067..7da0422446 100644
--- a/hw/arm/Kconfig
+++ b/hw/arm/Kconfig
@@ -29,6 +29,7 @@  config ARM_VIRT
     select ACPI_HW_REDUCED
     select ACPI_NVDIMM
     select ACPI_APEI
+    select ACPI_VIOT
 
 config CHEETAH
     bool