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[Qemu-devel] [PATCH 04/13] intel_iommu: set IR bit for ECAP register
From: |
Peter Xu |
Subject: |
[Qemu-devel] [PATCH 04/13] intel_iommu: set IR bit for ECAP register |
Date: |
Fri, 19 Feb 2016 11:30:09 +0800 |
Enable IR in IOMMU Extended Capability register.
Signed-off-by: Peter Xu <address@hidden>
---
hw/i386/intel_iommu.c | 4 ++++
hw/i386/intel_iommu_internal.h | 2 ++
2 files changed, 6 insertions(+)
diff --git a/hw/i386/intel_iommu.c b/hw/i386/intel_iommu.c
index 4b0558e..79585d2 100644
--- a/hw/i386/intel_iommu.c
+++ b/hw/i386/intel_iommu.c
@@ -1961,6 +1961,10 @@ static void vtd_init(IntelIOMMUState *s)
VTD_CAP_SAGAW | VTD_CAP_MAMV | VTD_CAP_PSI | VTD_CAP_SLLPS;
s->ecap = VTD_ECAP_QI | VTD_ECAP_IRO;
+ if (s->intr_supported) {
+ s->ecap |= VTD_ECAP_IR;
+ }
+
vtd_reset_context_cache(s);
vtd_reset_iotlb(s);
diff --git a/hw/i386/intel_iommu_internal.h b/hw/i386/intel_iommu_internal.h
index b648e69..5b98a11 100644
--- a/hw/i386/intel_iommu_internal.h
+++ b/hw/i386/intel_iommu_internal.h
@@ -176,6 +176,8 @@
/* (offset >> 4) << 8 */
#define VTD_ECAP_IRO (DMAR_IOTLB_REG_OFFSET << 4)
#define VTD_ECAP_QI (1ULL << 1)
+/* Interrupt Remapping support */
+#define VTD_ECAP_IR (1ULL << 3)
/* CAP_REG */
/* (offset >> 4) << 24 */
--
2.4.3
[Qemu-devel] [PATCH 06/13] intel_iommu: define interrupt remap table addr register, Peter Xu, 2016/02/18
[Qemu-devel] [PATCH 07/13] intel_iommu: handle interrupt remap enable, Peter Xu, 2016/02/18
[Qemu-devel] [PATCH 08/13] intel_iommu: define several structs for IOMMU IR, Peter Xu, 2016/02/18
[Qemu-devel] [PATCH 09/13] intel_iommu: provide helper function vtd_get_iommu, Peter Xu, 2016/02/18