@@ -227,7 +227,7 @@ static void build_extop_package(GArray *package, uint8_t op)
build_prepend_byte(package, 0x5B); /* ExtOpPrefix */
}
-static void build_append_int_noprefix(GArray *table, uint64_t value, int size)
+void build_append_int_noprefix(GArray *table, uint64_t value, int size)
{
int i;
@@ -52,6 +52,7 @@
#include "hw/pci/pci_bus.h"
#include "hw/pci-host/q35.h"
#include "hw/i386/intel_iommu.h"
+#include "hw/i386/amd_iommu.h"
#include "hw/timer/hpet.h"
#include "hw/acpi/aml-build.h"
@@ -59,6 +60,8 @@
#include "qapi/qmp/qint.h"
#include "qom/qom-qobject.h"
+#include "hw/boards.h"
+
/* These are used to size the ACPI tables for -M pc-i440fx-1.7 and
* -M pc-i440fx-2.0. Even if the actual amount of AML generated grows
* a little bit, there should be plenty of free space since the DSDT
@@ -2598,6 +2601,77 @@ build_dmar_q35(GArray *table_data, GArray *linker)
"DMAR", table_data->len - dmar_start, 1, NULL, NULL);
}
+static void
+build_amd_iommu(GArray *table_data, GArray *linker)
+{
+ int iommu_start = table_data->len;
+ bool iommu_ambig;
+
+ /* IVRS definition - table header has an extra 2-byte field */
+ acpi_data_push(table_data, (sizeof(AcpiTableHeader)));
+ /* common virtualization information */
+ build_append_int_noprefix(table_data, AMD_IOMMU_HOST_ADDRESS_WIDTH << 8, 4);
+ /* reserved */
+ build_append_int_noprefix(table_data, 0, 8);
+
+ AMDVIState *s = (AMDVIState *)object_resolve_path_type("",
+ TYPE_AMD_IOMMU_DEVICE, &iommu_ambig);
+
+ /* IVDB definition - type 10h */
+ if (!iommu_ambig) {
+ /* IVHD definition - type 10h */
+ build_append_int_noprefix(table_data, 0x10, 1);
+ /* virtualization flags */
+ build_append_int_noprefix(table_data, (IVHD_HT_TUNEN |
+ IVHD_PPRSUP | IVHD_IOTLBSUP | IVHD_PREFSUP), 1);
+ /* ivhd length */
+ build_append_int_noprefix(table_data, 0x20, 2);
+ /* iommu device id */
+ build_append_int_noprefix(table_data, PCI_DEVICE_ID_RD890_IOMMU, 2);
+ /* offset of capability registers */
+ build_append_int_noprefix(table_data, s->capab_offset, 2);
+ /* mmio base register */
+ build_append_int_noprefix(table_data, s->mmio.addr, 8);
+ /* pci segment */
+ build_append_int_noprefix(table_data, 0, 2);
+ /* interrupt numbers */
+ build_append_int_noprefix(table_data, 0, 2);
+ /* feature reporting */
+ build_append_int_noprefix(table_data, (IVHD_EFR_GTSUP |
+ IVHD_EFR_HATS | IVHD_EFR_GATS), 4);
+ /* Add device flags here
+ * These are 4-byte device entries currently reporting the range of
+ * devices 00h - ffffh; all devices
+ * Device setting affecting all devices should be made here
+ *
+ * Refer to
+ * (http://developer.amd.com/wordpress/media/2012/10/488821.pdf)
+ * Table 95
+ */
+ /* start of device range, 4-byte entries */
+ build_append_int_noprefix(table_data, 0x00000003, 4);
+ /* end of device range */
+ build_append_int_noprefix(table_data, 0x00ffff04, 4);
+ }
+
+ build_header(linker, table_data, (void *)(table_data->data + iommu_start),
+ "IVRS", table_data->len - iommu_start, 1, NULL, NULL);
+}
+
+static IommuType has_iommu(void)
+{
+ bool ambiguous;
+
+ if (object_resolve_path_type("", TYPE_AMD_IOMMU_DEVICE, &ambiguous)
+ && !ambiguous)
+ return TYPE_AMD;
+ else if (object_resolve_path_type("", TYPE_INTEL_IOMMU_DEVICE, &ambiguous)
+ && !ambiguous)
+ return TYPE_INTEL;
+ else
+ return TYPE_NONE;
+}
+
static GArray *
build_rsdp(GArray *rsdp_table, GArray *linker, unsigned rsdt)
{
@@ -2656,16 +2730,6 @@ static bool acpi_get_mcfg(AcpiMcfgInfo *mcfg)
return true;
}
-static bool acpi_has_iommu(void)
-{
- bool ambiguous;
- Object *intel_iommu;
-
- intel_iommu = object_resolve_path_type("", TYPE_INTEL_IOMMU_DEVICE,
- &ambiguous);
- return intel_iommu && !ambiguous;
-}
-
static
void acpi_build(AcpiBuildTables *tables, MachineState *machine)
{
@@ -2678,6 +2742,7 @@ void acpi_build(AcpiBuildTables *tables, MachineState *machine)
AcpiMcfgInfo mcfg;
PcPciInfo pci;
uint8_t *u;
+ IommuType IOMMUType = has_iommu();
size_t aml_len = 0;
GArray *tables_blob = tables->table_data;
AcpiSlicOem slic_oem = { .id = NULL, .table_id = NULL };
@@ -2743,7 +2808,13 @@ void acpi_build(AcpiBuildTables *tables, MachineState *machine)
acpi_add_table(table_offsets, tables_blob);
build_mcfg_q35(tables_blob, tables->linker, &mcfg);
}
- if (acpi_has_iommu()) {
+
+ if (IOMMUType == TYPE_AMD) {
+ acpi_add_table(table_offsets, tables_blob);
+ build_amd_iommu(tables_blob, tables->linker);
+ }
+
+ if (IOMMUType == TYPE_INTEL) {
acpi_add_table(table_offsets, tables_blob);
build_dmar_q35(tables_blob, tables->linker);
}
@@ -570,4 +570,17 @@ typedef struct AcpiDmarHardwareUnit AcpiDmarHardwareUnit;
/* Masks for Flags field above */
#define ACPI_DMAR_INCLUDE_PCI_ALL 1
+/* IVRS constants */
+#define AMD_IOMMU_HOST_ADDRESS_WIDTH 40UL
+
+/* flags in the IVHD headers */
+#define IVHD_HT_TUNEN (1UL << 0) /* recommended setting for HtTunEn */
+#define IVHD_IOTLBSUP (1UL << 4) /* remote IOTLB support */
+#define IVHD_PREFSUP (1UL << 6) /* page prefetch support */
+#define IVHD_PPRSUP (1UL << 7) /* peripheral page service support */
+
+#define IVHD_EFR_HATS 48 /* host address translation size */
+#define IVHD_EFR_GATS 48 /* guest address translation size */
+#define IVHD_EFR_GTSUP (1UL << 2) /* guest translation support */
+
#endif
@@ -355,6 +355,7 @@ Aml *aml_derefof(Aml *arg);
Aml *aml_sizeof(Aml *arg);
Aml *aml_concatenate(Aml *source1, Aml *source2, Aml *target);
+void build_append_int_noprefix(GArray *table, uint64_t value, int size);
void
build_header(GArray *linker, GArray *table_data,
AcpiTableHeader *h, const char *sig, int len, uint8_t rev,
@@ -61,6 +61,12 @@ typedef struct {
CPUArchId cpus[0];
} CPUArchIdList;
+typedef enum IommuType {
+ TYPE_AMD,
+ TYPE_INTEL,
+ TYPE_NONE
+} IommuType;
+
/**
* MachineClass:
* @get_hotplug_handler: this function is called during bus-less
Add IVRS table for AMD IOMMU. Generate IVRS or DMAR depending on emulated IOMMU. Signed-off-by: David Kiarie <davidkiarie4@gmail.com> --- hw/acpi/aml-build.c | 2 +- hw/i386/acpi-build.c | 93 +++++++++++++++++++++++++++++++++++++++------ include/hw/acpi/acpi-defs.h | 13 +++++++ include/hw/acpi/aml-build.h | 1 + include/hw/boards.h | 6 +++ 5 files changed, 103 insertions(+), 12 deletions(-)