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[Qemu-devel] [PATCH v2 4/4] intel_iommu: Remove the caching-mode check d
From: |
Peter Xu |
Subject: |
[Qemu-devel] [PATCH v2 4/4] intel_iommu: Remove the caching-mode check during flag change |
Date: |
Mon, 16 Sep 2019 15:58:39 +0800 |
That's never a good place to stop QEMU process... Since now we have
both the machine done sanity check and also the hotplug handler, we
can safely remove this to avoid that.
Signed-off-by: Peter Xu <address@hidden>
---
hw/i386/intel_iommu.c | 4 ----
1 file changed, 4 deletions(-)
diff --git a/hw/i386/intel_iommu.c b/hw/i386/intel_iommu.c
index 17fc309b3d..070816c355 100644
--- a/hw/i386/intel_iommu.c
+++ b/hw/i386/intel_iommu.c
@@ -2935,10 +2935,6 @@ static void
vtd_iommu_notify_flag_changed(IOMMUMemoryRegion *iommu,
VTDAddressSpace *vtd_as = container_of(iommu, VTDAddressSpace, iommu);
IntelIOMMUState *s = vtd_as->iommu_state;
- if (!s->caching_mode && new & IOMMU_NOTIFIER_MAP) {
- vtd_panic_require_caching_mode();
- }
-
/* Update per-address-space notifier flags */
vtd_as->notifier_flags = new;
--
2.21.0