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[Qemu-devel] [PULL v5 34/57] intel_iommu: support all masks in interrupt
From: |
Michael S. Tsirkin |
Subject: |
[Qemu-devel] [PULL v5 34/57] intel_iommu: support all masks in interrupt entry cache invalidation |
Date: |
Thu, 21 Jul 2016 20:53:54 +0300 |
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>
Reviewed-by: Michael S. Tsirkin <address@hidden>
Signed-off-by: Michael S. Tsirkin <address@hidden>
---
hw/i386/intel_iommu_internal.h | 1 +
hw/i386/intel_iommu.c | 2 +-
2 files changed, 2 insertions(+), 1 deletion(-)
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 */
diff --git a/hw/i386/intel_iommu.c b/hw/i386/intel_iommu.c
index 5a97548..df2678b 100644
--- a/hw/i386/intel_iommu.c
+++ b/hw/i386/intel_iommu.c
@@ -2362,7 +2362,7 @@ 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);
--
MST
- [Qemu-devel] [PULL v5 24/57] ioapic: introduce ioapic_entry_parse() helper, (continued)
- [Qemu-devel] [PULL v5 24/57] ioapic: introduce ioapic_entry_parse() helper, Michael S. Tsirkin, 2016/07/21
- [Qemu-devel] [PULL v5 25/57] intel_iommu: add support for split irqchip, Michael S. Tsirkin, 2016/07/21
- [Qemu-devel] [PULL v5 26/57] x86-iommu: introduce IEC notifiers, Michael S. Tsirkin, 2016/07/21
- [Qemu-devel] [PULL v5 27/57] ioapic: register IOMMU IEC notifier for ioapic, Michael S. Tsirkin, 2016/07/21
- [Qemu-devel] [PULL v5 28/57] intel_iommu: Add support for Extended Interrupt Mode, Michael S. Tsirkin, 2016/07/21
- [Qemu-devel] [PULL v5 29/57] intel_iommu: add SID validation for IR, Michael S. Tsirkin, 2016/07/21
- [Qemu-devel] [PULL v5 30/57] kvm-irqchip: simplify kvm_irqchip_add_msi_route, Michael S. Tsirkin, 2016/07/21
- [Qemu-devel] [PULL v5 32/57] kvm-irqchip: x86: add msi route notify fn, Michael S. Tsirkin, 2016/07/21
- [Qemu-devel] [PULL v5 31/57] kvm-irqchip: i386: add hook for add/remove virq, Michael S. Tsirkin, 2016/07/21
- [Qemu-devel] [PULL v5 33/57] kvm-irqchip: do explicit commit when update irq, Michael S. Tsirkin, 2016/07/21
- [Qemu-devel] [PULL v5 34/57] intel_iommu: support all masks in interrupt entry cache invalidation,
Michael S. Tsirkin <=
- [Qemu-devel] [PULL v5 35/57] kvm-all: add trace events for kvm irqchip ops, Michael S. Tsirkin, 2016/07/21
- [Qemu-devel] [PULL v5 36/57] intel_iommu: disallow kernel-irqchip=on with IR, Michael S. Tsirkin, 2016/07/21
- [Qemu-devel] [PULL v5 37/57] virtio: Add typedef for handle_output, Michael S. Tsirkin, 2016/07/21
- [Qemu-devel] [PULL v5 38/57] virtio: Introduce virtio_add_queue_aio, Michael S. Tsirkin, 2016/07/21
- [Qemu-devel] [PULL v5 39/57] virtio-blk: Call virtio_add_queue_aio, Michael S. Tsirkin, 2016/07/21
- [Qemu-devel] [PULL v5 40/57] virtio-scsi: Call virtio_add_queue_aio, Michael S. Tsirkin, 2016/07/21
- [Qemu-devel] [PULL v5 41/57] Revert "mirror: Workaround for unexpected iohandler events during completion", Michael S. Tsirkin, 2016/07/21
- [Qemu-devel] [PULL v5 42/57] virtio-scsi: Replace HandleOutput typedef, Michael S. Tsirkin, 2016/07/21
- [Qemu-devel] [PULL v5 43/57] virtio-net: Remove old migration version support, Michael S. Tsirkin, 2016/07/21
- [Qemu-devel] [PULL v5 44/57] virtio-serial: Remove old migration version support, Michael S. Tsirkin, 2016/07/21