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 <pet...@redhat.com>
---
 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


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