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hw/iommu: enable iommu with -device 

Use the standard '-device intel-iommu' to create the IOMMU device.
The legacy '-machine,iommu=on' can still be used.

Signed-off-by: Marcel Apfelbaum <marcel@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
This commit is contained in:
Marcel Apfelbaum 2016-06-27 18:38:34 +03:00 committed by Michael S. Tsirkin
parent bf8d492405
commit 621d983a1f
3 changed files with 17 additions and 17 deletions
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16
hw/i386/intel_iommu.c
View File

@ -25,6 +25,7 @@
#include "intel_iommu_internal.h"
#include "hw/pci/pci.h"
#include "hw/pci/pci_bus.h"
#include "hw/i386/pc.h"
/*#define DEBUG_INTEL_IOMMU*/
#ifdef DEBUG_INTEL_IOMMU
@ -2026,8 +2027,20 @@ static void vtd_reset(DeviceState *dev)
vtd_init(s);
}
static AddressSpace *vtd_host_dma_iommu(PCIBus *bus, void *opaque, int devfn)
{
IntelIOMMUState *s = opaque;
VTDAddressSpace *vtd_as;
assert(0 <= devfn && devfn <= VTD_PCI_DEVFN_MAX);
vtd_as = vtd_find_add_as(s, bus, devfn);
return &vtd_as->as;
}
static void vtd_realize(DeviceState *dev, Error **errp)
{
PCIBus *bus = PC_MACHINE(qdev_get_machine())->bus;
IntelIOMMUState *s = INTEL_IOMMU_DEVICE(dev);
VTD_DPRINTF(GENERAL, "");
@ -2041,6 +2054,8 @@ static void vtd_realize(DeviceState *dev, Error **errp)
s->vtd_as_by_busptr = g_hash_table_new_full(vtd_uint64_hash, vtd_uint64_equal,
g_free, g_free);
vtd_init(s);
sysbus_mmio_map(SYS_BUS_DEVICE(s), 0, Q35_HOST_BRIDGE_IOMMU_ADDR);
pci_setup_iommu(bus, vtd_host_dma_iommu, dev);
}
static void vtd_class_init(ObjectClass *klass, void *data)
@ -2051,6 +2066,7 @@ static void vtd_class_init(ObjectClass *klass, void *data)
dc->realize = vtd_realize;
dc->vmsd = &vtd_vmstate;
dc->props = vtd_properties;
dc->hotpluggable = false;
}
static const TypeInfo vtd_info = {

1
hw/i386/pc_q35.c
View File

@ -179,7 +179,6 @@ static void pc_q35_init(MachineState *machine)
qdev_init_nofail(DEVICE(q35_host));
phb = PCI_HOST_BRIDGE(q35_host);
host_bus = phb->bus;
pcms->bus = phb->bus;
/* create ISA bus */
lpc = pci_create_simple_multifunction(host_bus, PCI_DEVFN(ICH9_LPC_DEV,
ICH9_LPC_FUNC), true,

17
hw/pci-host/q35.c
View File

@ -52,6 +52,7 @@ static void q35_host_realize(DeviceState *dev, Error **errp)
pci->bus = pci_bus_new(DEVICE(s), "pcie.0",
s->mch.pci_address_space, s->mch.address_space_io,
0, TYPE_PCIE_BUS);
PC_MACHINE(qdev_get_machine())->bus = pci->bus;
qdev_set_parent_bus(DEVICE(&s->mch), BUS(pci->bus));
qdev_init_nofail(DEVICE(&s->mch));
}
@ -446,28 +447,12 @@ static void mch_reset(DeviceState *qdev)
mch_update(mch);
}
static AddressSpace *q35_host_dma_iommu(PCIBus *bus, void *opaque, int devfn)
{
IntelIOMMUState *s = opaque;
VTDAddressSpace *vtd_as;
assert(0 <= devfn && devfn <= VTD_PCI_DEVFN_MAX);
vtd_as = vtd_find_add_as(s, bus, devfn);
return &vtd_as->as;
}
static void mch_init_dmar(MCHPCIState *mch)
{
PCIBus *pci_bus = PCI_BUS(qdev_get_parent_bus(DEVICE(mch)));
mch->iommu = INTEL_IOMMU_DEVICE(qdev_create(NULL, TYPE_INTEL_IOMMU_DEVICE));
object_property_add_child(OBJECT(mch), "intel-iommu",
OBJECT(mch->iommu), NULL);
qdev_init_nofail(DEVICE(mch->iommu));
sysbus_mmio_map(SYS_BUS_DEVICE(mch->iommu), 0, Q35_HOST_BRIDGE_IOMMU_ADDR);
pci_setup_iommu(pci_bus, q35_host_dma_iommu, mch->iommu);
}
static void mch_realize(PCIDevice *d, Error **errp)