On 2016-02-17 20:09, David Kiarie wrote: > Add IVRS table for AMD IO MMU. Also reverve MMIO > region for IO MMU via ACPI > > Signed-off-by: David Kiarie <davidkiar...@gmail.com> > --- > hw/i386/acpi-build.c | 98 > ++++++++++++++++++++++++++++++++++++++++----- > include/hw/acpi/acpi-defs.h | 55 +++++++++++++++++++++++++ > 2 files changed, 142 insertions(+), 11 deletions(-) > > diff --git a/hw/i386/acpi-build.c b/hw/i386/acpi-build.c > index 739cfa3..b8cd091 100644 > --- a/hw/i386/acpi-build.c > +++ b/hw/i386/acpi-build.c > @@ -51,6 +51,7 @@ > #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" > @@ -121,6 +122,12 @@ typedef struct AcpiBuildPciBusHotplugState { > bool pcihp_bridge_en; > } AcpiBuildPciBusHotplugState; > > +typedef enum iommu_type { > + TYPE_AMD, > + TYPE_INTEL, > + TYPE_NONE > +} iommu_type; > + > static > int acpi_add_cpu_info(Object *o, void *opaque) > { > @@ -2423,6 +2430,78 @@ build_dmar_q35(GArray *table_data, GArray *linker) > } > > static void > +build_amd_iommu(GArray *table_data, GArray *linker) > +{ > + int iommu_start = table_data->len; > + bool iommu_ambig; > + > + AcpiAMDIOMMUIVRS *ivrs; > + AcpiAMDIOMMUHardwareUnit *iommu; > + > + /* IVRS definition */ > + ivrs = acpi_data_push(table_data, sizeof(*ivrs)); > + ivrs->revision = cpu_to_le16(ACPI_IOMMU_IVRS_TYPE); > + ivrs->length = cpu_to_le16((sizeof(*ivrs) + sizeof(*iommu))); > + ivrs->v_common_info = cpu_to_le64(AMD_IOMMU_HOST_ADDRESS_WIDTH << 8); > + > + AMDIOMMUState *s = (AMDIOMMUState *)object_resolve_path_type("", > + TYPE_AMD_IOMMU_DEVICE, &iommu_ambig); > + > + /* IVDB definition - type 10h */ > + iommu = acpi_data_push(table_data, sizeof(*iommu)); > + if (!iommu_ambig) { > + iommu->type = cpu_to_le16(0x10); > + /* IVHD flags */ > + iommu->flags = cpu_to_le16(iommu->flags); > + iommu->flags = cpu_to_le16(IVHD_HT_TUNEN | IVHD_PPRSUP | > IVHD_IOTLBSUP > + | IVHD_PREFSUP); > + iommu->length = cpu_to_le16(sizeof(*iommu)); > + iommu->device_id = cpu_to_le16(PCI_DEVICE_ID_RD890_IOMMU); > + iommu->capability_offset = cpu_to_le16(s->capab_offset); > + iommu->mmio_base = cpu_to_le64(s->mmio.addr); > + iommu->pci_segment = 0; > + iommu->interrupt_info = 0; > + /* EFR features */ > + iommu->efr_register = cpu_to_le64(IVHD_EFR_GTSUP | IVHD_EFR_HATS > + | IVHD_EFR_GATS); > + iommu->efr_register = cpu_to_le64(iommu->efr_register); > + /* device entries */ > + memset(iommu->dev_entries, 0, 20); > + /* Add device flags here > + * This is 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) > + * 5.2.2.1 > + */ > + iommu->dev_entries[12] = 3; > + iommu->dev_entries[16] = 4; > + iommu->dev_entries[17] = 0xff; > + iommu->dev_entries[18] = 0xff; > + } > + > + build_header(linker, table_data, (void *)(table_data->data + > iommu_start), > + "IVRS", table_data->len - iommu_start, 1, NULL);
Requires rebasing over master (to append another NULL here). Jan
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