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| author | Peter Xu <peterx@redhat.com> | 2016-11-29 13:43:40 +0800 |
|---|---|---|
| committer | Michael S. Tsirkin <mst@redhat.com> | 2016-11-30 04:20:57 +0200 |
| commit | 6cb99acc2808cc41e2d772a23e9cc564515535cc (patch) | |
| tree | 4f6d1196a42a6eb1d7c5688f1b6a08b9eb435b5f /hw/i386/intel_iommu.c | |
| parent | 5449c230fac9cd6a645fe8c85693444dad512b59 (diff) | |
| download | qemu-6cb99acc2808cc41e2d772a23e9cc564515535cc.zip qemu-6cb99acc2808cc41e2d772a23e9cc564515535cc.tar.gz qemu-6cb99acc2808cc41e2d772a23e9cc564515535cc.tar.bz2 | |
intel_iommu: fix incorrect device invalidate
"mask" needs to be inverted before use.
Signed-off-by: Peter Xu <peterx@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Diffstat (limited to 'hw/i386/intel_iommu.c')
| -rw-r--r-- | hw/i386/intel_iommu.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/hw/i386/intel_iommu.c b/hw/i386/intel_iommu.c index 1b706ad..5f3e351 100644 --- a/hw/i386/intel_iommu.c +++ b/hw/i386/intel_iommu.c @@ -988,6 +988,7 @@ static void vtd_context_device_invalidate(IntelIOMMUState *s, mask = 7; /* Mask bit 2:0 in the SID field */ break; } + mask = ~mask; VTD_DPRINTF(INV, "device-selective invalidation source 0x%"PRIx16 " mask %"PRIu16, source_id, mask); vtd_bus = vtd_find_as_from_bus_num(s, VTD_SID_TO_BUS(source_id)); |