[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
[Qemu-devel] [PATCH v5 9/9] x86_iommu/amd: Enable Guest virtual APIC sup
From: |
Singh, Brijesh |
Subject: |
[Qemu-devel] [PATCH v5 9/9] x86_iommu/amd: Enable Guest virtual APIC support |
Date: |
Mon, 1 Oct 2018 19:44:45 +0000 |
Now that amd-iommu support interrupt remapping, enable the GASup in IVRS
table and GASup in extended feature register to indicate that IOMMU
support guest virtual APIC mode. GASup provides option to guest OS to
make use of 128-bit IRTE.
Note that the GAMSup is set to zero to indicate that amd-iommu does not
support guest virtual APIC mode (aka AVIC) which would be used for the
nested VMs.
See Table 21 from IOMMU spec for interrupt virtualization controls
Signed-off-by: Brijesh Singh <address@hidden>
Reviewed-by: Peter Xu <address@hidden>
Cc: Peter Xu <address@hidden>
Cc: "Michael S. Tsirkin" <address@hidden>
Cc: Paolo Bonzini <address@hidden>
Cc: Richard Henderson <address@hidden>
Cc: Eduardo Habkost <address@hidden>
Cc: Marcel Apfelbaum <address@hidden>
Cc: Tom Lendacky <address@hidden>
Cc: Suravee Suthikulpanit <address@hidden>
---
hw/i386/acpi-build.c | 3 ++-
hw/i386/amd_iommu.h | 2 +-
2 files changed, 3 insertions(+), 2 deletions(-)
diff --git a/hw/i386/acpi-build.c b/hw/i386/acpi-build.c
index 1ef396d..236a20e 100644
--- a/hw/i386/acpi-build.c
+++ b/hw/i386/acpi-build.c
@@ -2518,7 +2518,8 @@ build_amd_iommu(GArray *table_data, BIOSLinker *linker)
build_append_int_noprefix(table_data,
(48UL << 30) | /* HATS */
(48UL << 28) | /* GATS */
- (1UL << 2), /* GTSup */
+ (1UL << 2) | /* GTSup */
+ (1UL << 6), /* GASup */
4);
/*
* Type 1 device entry reporting all devices
diff --git a/hw/i386/amd_iommu.h b/hw/i386/amd_iommu.h
index 8061e9c..687fcd8 100644
--- a/hw/i386/amd_iommu.h
+++ b/hw/i386/amd_iommu.h
@@ -176,7 +176,7 @@
/* extended feature support */
#define AMDVI_EXT_FEATURES (AMDVI_FEATURE_PREFETCH | AMDVI_FEATURE_PPR | \
AMDVI_FEATURE_IA | AMDVI_FEATURE_GT | AMDVI_FEATURE_HE | \
- AMDVI_GATS_MODE | AMDVI_HATS_MODE)
+ AMDVI_GATS_MODE | AMDVI_HATS_MODE | AMDVI_FEATURE_GA)
/* capabilities header */
#define AMDVI_CAPAB_FEATURES (AMDVI_CAPAB_FLAT_EXT | \
--
2.7.4
- [Qemu-devel] [PATCH v5 0/9] x86_iommu/amd: add interrupt remap support, Singh, Brijesh, 2018/10/01
- [Qemu-devel] [PATCH v5 7/9] i386: acpi: add IVHD device entry for IOAPIC, Singh, Brijesh, 2018/10/01
- [Qemu-devel] [PATCH v5 5/9] x86_iommu/amd: Prepare for interrupt remap support, Singh, Brijesh, 2018/10/01
- [Qemu-devel] [PATCH v5 4/9] x86_iommu/amd: make the address space naming consistent with intel-iommu, Singh, Brijesh, 2018/10/01
- [Qemu-devel] [PATCH v5 2/9] x86_iommu: move vtd_generate_msi_message in common file, Singh, Brijesh, 2018/10/01
- [Qemu-devel] [PATCH v5 9/9] x86_iommu/amd: Enable Guest virtual APIC support,
Singh, Brijesh <=
- [Qemu-devel] [PATCH v5 1/9] x86_iommu: move the kernel-irqchip check in common code, Singh, Brijesh, 2018/10/01
- [Qemu-devel] [PATCH v5 3/9] x86_iommu/amd: remove V=1 check from amdvi_validate_dte(), Singh, Brijesh, 2018/10/01
- [Qemu-devel] [PATCH v5 6/9] x86_iommu/amd: Add interrupt remap support when VAPIC is not enabled, Singh, Brijesh, 2018/10/01
- Re: [Qemu-devel] [PATCH v5 0/9] x86_iommu/amd: add interrupt remap support, Singh, Brijesh, 2018/10/19