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[Qemu-devel] [PULL v2 33/55] intel_iommu: support all masks in interrupt
From: |
Michael S. Tsirkin |
Subject: |
[Qemu-devel] [PULL v2 33/55] intel_iommu: support all masks in interrupt entry cache invalidation |
Date: |
Tue, 19 Jul 2016 20:53:46 +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 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);
--
MST
- [Qemu-devel] [PULL v2 23/55] ioapic: introduce ioapic_entry_parse() helper, (continued)
- [Qemu-devel] [PULL v2 23/55] ioapic: introduce ioapic_entry_parse() helper, Michael S. Tsirkin, 2016/07/19
- [Qemu-devel] [PULL v2 24/55] intel_iommu: add support for split irqchip, Michael S. Tsirkin, 2016/07/19
- [Qemu-devel] [PULL v2 25/55] x86-iommu: introduce IEC notifiers, Michael S. Tsirkin, 2016/07/19
- [Qemu-devel] [PULL v2 26/55] ioapic: register IOMMU IEC notifier for ioapic, Michael S. Tsirkin, 2016/07/19
- [Qemu-devel] [PULL v2 27/55] intel_iommu: Add support for Extended Interrupt Mode, Michael S. Tsirkin, 2016/07/19
- [Qemu-devel] [PULL v2 28/55] intel_iommu: add SID validation for IR, Michael S. Tsirkin, 2016/07/19
- [Qemu-devel] [PULL v2 29/55] kvm-irqchip: simplify kvm_irqchip_add_msi_route, Michael S. Tsirkin, 2016/07/19
- [Qemu-devel] [PULL v2 30/55] kvm-irqchip: i386: add hook for add/remove virq, Michael S. Tsirkin, 2016/07/19
- [Qemu-devel] [PULL v2 31/55] kvm-irqchip: x86: add msi route notify fn, Michael S. Tsirkin, 2016/07/19
- [Qemu-devel] [PULL v2 32/55] kvm-irqchip: do explicit commit when update irq, Michael S. Tsirkin, 2016/07/19
- [Qemu-devel] [PULL v2 33/55] intel_iommu: support all masks in interrupt entry cache invalidation,
Michael S. Tsirkin <=
- [Qemu-devel] [PULL v2 34/55] kvm-all: add trace events for kvm irqchip ops, Michael S. Tsirkin, 2016/07/19
- [Qemu-devel] [PULL v2 35/55] intel_iommu: disallow kernel-irqchip=on with IR, Michael S. Tsirkin, 2016/07/19
- [Qemu-devel] [PULL v2 36/55] virtio: Add typedef for handle_output, Michael S. Tsirkin, 2016/07/19
- [Qemu-devel] [PULL v2 37/55] virtio: Introduce virtio_add_queue_aio, Michael S. Tsirkin, 2016/07/19
- [Qemu-devel] [PULL v2 38/55] virtio-blk: Call virtio_add_queue_aio, Michael S. Tsirkin, 2016/07/19
- [Qemu-devel] [PULL v2 39/55] virtio-scsi: Call virtio_add_queue_aio, Michael S. Tsirkin, 2016/07/19
- [Qemu-devel] [PULL v2 40/55] Revert "mirror: Workaround for unexpected iohandler events during completion", Michael S. Tsirkin, 2016/07/19
- [Qemu-devel] [PULL v2 41/55] virtio-scsi: Replace HandleOutput typedef, Michael S. Tsirkin, 2016/07/19
- [Qemu-devel] [PULL v2 42/55] virtio-net: Remove old migration version support, Michael S. Tsirkin, 2016/07/19
- [Qemu-devel] [PULL v2 43/55] virtio-serial: Remove old migration version support, Michael S. Tsirkin, 2016/07/19