Add AMD IO MMU emulation support to q35 chipset
Signed-off-by: David Kiarie <davidkiar...@gmail.com>
---
hw/pci-host/piix.c | 1 +
hw/pci-host/q35.c | 14 ++++++++++++--
include/hw/i386/intel_iommu.h | 1 +
3 files changed, 14 insertions(+), 2 deletions(-)
diff --git a/hw/pci-host/piix.c b/hw/pci-host/piix.c
index 3832ed6..6aad34c 100644
--- a/hw/pci-host/piix.c
+++ b/hw/pci-host/piix.c
@@ -36,6 +36,7 @@
#include "hw/i386/ioapic.h"
#include "qapi/visitor.h"
#include "qemu/error-report.h"
+#include "hw/i386/amd_iommu.h"
/*
* I440FX chipset data sheet.
diff --git a/hw/pci-host/q35.c b/hw/pci-host/q35.c
index 42b421e..7284bdd 100644
--- a/hw/pci-host/q35.c
+++ b/hw/pci-host/q35.c
@@ -31,6 +31,7 @@
#include "hw/hw.h"
#include "hw/pci-host/q35.h"
#include "qapi/visitor.h"
+#include "hw/i386/amd_iommu.h"
/****************************************************************************
* Q35 host
@@ -506,9 +507,18 @@ static void mch_realize(PCIDevice *d, Error **errp)
mch->pci_address_space, &mch->pam_regions[i+1],
PAM_EXPAN_BASE + i * PAM_EXPAN_SIZE, PAM_EXPAN_SIZE);
}
- /* Intel IOMMU (VT-d) */
- if (object_property_get_bool(qdev_get_machine(), "iommu", NULL)) {
+
+ if (g_strcmp0(MACHINE(qdev_get_machine())->iommu, INTEL_IOMMU_STR) == 0) {
+ /* Intel IOMMU (VT-d) */
mch_init_dmar(mch);
+ } else if (g_strcmp0(MACHINE(qdev_get_machine())->iommu, AMD_IOMMU_STR)
+ == 0) {
+ AMDIOMMUState *iommu_state;
+ PCIDevice *iommu;
+ PCIBus *bus = PCI_BUS(qdev_get_parent_bus(DEVICE(mch)));
+ iommu = pci_create_simple(bus, 0x20, TYPE_AMD_IOMMU_DEVICE);
+ iommu_state = AMD_IOMMU_DEVICE(iommu);
+ pci_setup_iommu(bus, bridge_host_amd_iommu, iommu_state);
}
}
diff --git a/include/hw/i386/intel_iommu.h b/include/hw/i386/intel_iommu.h
index 5dbadb7..0b32bd6 100644
--- a/include/hw/i386/intel_iommu.h
+++ b/include/hw/i386/intel_iommu.h
@@ -27,6 +27,7 @@
#define TYPE_INTEL_IOMMU_DEVICE "intel-iommu"
#define INTEL_IOMMU_DEVICE(obj) \
OBJECT_CHECK(IntelIOMMUState, (obj), TYPE_INTEL_IOMMU_DEVICE)
+#define INTEL_IOMMU_STR "intel"
/* DMAR Hardware Unit Definition address (IOMMU unit) */
#define Q35_HOST_BRIDGE_IOMMU_ADDR 0xfed90000ULL
--
2.1.4
