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[Qemu-devel] [PATCH v12 25/27] intel_iommu: support all masks in interru
From: |
Peter Xu |
Subject: |
[Qemu-devel] [PATCH v12 25/27] intel_iommu: support all masks in interrupt entry cache invalidation |
Date: |
Thu, 14 Jul 2016 13:56:34 +0800 |
From: Radim Krčmář <address@hidden>
Linux guests do not gracefully handle cases when the invalidation mask
they wanted is not supported, probably because real hardware always
allowed all.
We can just say that all 16 masks are supported, because both
ioapic_iec_notifier and kvm_update_msi_routes_all invalidate all caches.
Signed-off-by: Radim Krčmář <address@hidden>
---
hw/i386/intel_iommu.c | 2 +-
hw/i386/intel_iommu_internal.h | 1 +
2 files changed, 2 insertions(+), 1 deletion(-)
diff --git a/hw/i386/intel_iommu.c b/hw/i386/intel_iommu.c
index d7d30a7..00e6682 100644
--- a/hw/i386/intel_iommu.c
+++ b/hw/i386/intel_iommu.c
@@ -2364,7 +2364,7 @@ static void vtd_init(IntelIOMMUState *s)
s->ecap = VTD_ECAP_QI | VTD_ECAP_IRO;
if (x86_iommu->intr_supported) {
- s->ecap |= VTD_ECAP_IR | VTD_ECAP_EIM;
+ s->ecap |= VTD_ECAP_IR | VTD_ECAP_EIM | VTD_ECAP_MHMV;
}
vtd_reset_context_cache(s);
diff --git a/hw/i386/intel_iommu_internal.h b/hw/i386/intel_iommu_internal.h
index 72b0114..0829a50 100644
--- a/hw/i386/intel_iommu_internal.h
+++ b/hw/i386/intel_iommu_internal.h
@@ -186,6 +186,7 @@
/* Interrupt Remapping support */
#define VTD_ECAP_IR (1ULL << 3)
#define VTD_ECAP_EIM (1ULL << 4)
+#define VTD_ECAP_MHMV (15ULL << 20)
/* CAP_REG */
/* (offset >> 4) << 24 */
--
2.4.11
- [Qemu-devel] [PATCH v12 15/27] ioapic: introduce ioapic_entry_parse() helper, (continued)
- [Qemu-devel] [PATCH v12 15/27] ioapic: introduce ioapic_entry_parse() helper, Peter Xu, 2016/07/14
- [Qemu-devel] [PATCH v12 16/27] intel_iommu: add support for split irqchip, Peter Xu, 2016/07/14
- [Qemu-devel] [PATCH v12 17/27] x86-iommu: introduce IEC notifiers, Peter Xu, 2016/07/14
- [Qemu-devel] [PATCH v12 18/27] ioapic: register IOMMU IEC notifier for ioapic, Peter Xu, 2016/07/14
- [Qemu-devel] [PATCH v12 19/27] intel_iommu: Add support for Extended Interrupt Mode, Peter Xu, 2016/07/14
- [Qemu-devel] [PATCH v12 20/27] intel_iommu: add SID validation for IR, Peter Xu, 2016/07/14
- [Qemu-devel] [PATCH v12 21/27] kvm-irqchip: simplify kvm_irqchip_add_msi_route, Peter Xu, 2016/07/14
- [Qemu-devel] [PATCH v12 22/27] kvm-irqchip: i386: add hook for add/remove virq, Peter Xu, 2016/07/14
- [Qemu-devel] [PATCH v12 23/27] kvm-irqchip: x86: add msi route notify fn, Peter Xu, 2016/07/14
- [Qemu-devel] [PATCH v12 24/27] kvm-irqchip: do explicit commit when update irq, Peter Xu, 2016/07/14
- [Qemu-devel] [PATCH v12 25/27] intel_iommu: support all masks in interrupt entry cache invalidation,
Peter Xu <=
- [Qemu-devel] [PATCH v12 26/27] kvm-all: add trace events for kvm irqchip ops, Peter Xu, 2016/07/14
- [Qemu-devel] [PATCH v12 27/27] intel_iommu: disallow kernel-irqchip=on with IR, Peter Xu, 2016/07/14