@@ -2527,6 +2527,7 @@ build_dmar_q35(GArray *table_data, BIOSLinker *linker)
AcpiTableDmar *dmar;
AcpiDmarHardwareUnit *drhd;
+ AcpiDmarRootPortATS *atsr;
uint8_t dmar_flags = 0;
X86IOMMUState *iommu = x86_iommu_get_default();
AcpiDmarDeviceScope *scope = NULL;
@@ -2559,6 +2560,14 @@ build_dmar_q35(GArray *table_data, BIOSLinker *linker)
scope->bus = Q35_PSEUDO_BUS_PLATFORM;
scope->path[0] = cpu_to_le16(Q35_PSEUDO_DEVFN_IOAPIC);
+ if (iommu->dt_supported) {
+ atsr = acpi_data_push(table_data, sizeof(*atsr));
+ atsr->type = cpu_to_le16(ACPI_DMAR_TYPE_ATSR);
+ atsr->length = cpu_to_le16(sizeof(*atsr));
+ atsr->flags = ACPI_DMAR_ATSR_ALL_PORTS;
+ atsr->pci_segment = cpu_to_le16(0);
+ }
+
build_header(linker, table_data, (void *)(table_data->data + dmar_start),
"DMAR", table_data->len - dmar_start, 1, NULL, NULL);
}
@@ -608,5 +608,6 @@ typedef struct AcpiDmarRootPortATS AcpiDmarRootPortATS;
/* Masks for Flags field above */
#define ACPI_DMAR_INCLUDE_PCI_ALL 1
+#define ACPI_DMAR_ATSR_ALL_PORTS 1
#endif