commit d7258f7a250716231d23d5412dd6caf923936549
author Clément Mathieu--Drif <clement.mathieu--drif@eviden.com> Tue Jul 09 14:26:10 2024 +0000
committer Michael S. Tsirkin <mst@redhat.com> Sun Jul 21 14:45:53 2024 -0400
tree 708eb34e60b2be4819cb2b777898b9cf206704ff
parent 3a23554f91c01cf75705a36a5eed3ebef6636d41

intel_iommu: fix type of the mask field in VTDIOTLBPageInvInfo

Per the below code, it can overflow as am can be larger than 8 according
to the CH 6.5.2.3 IOTLB Invalidate. Use uint64_t to avoid overflows.

Fixes: b5a280c00840 ("intel-iommu: add IOTLB using hash table")
Signed-off-by: Clément Mathieu--Drif <clement.mathieu--drif@eviden.com>
Reviewed-by: Minwoo Im <minwoo.im@samsung.com>
Reviewed-by: Yi Liu <yi.l.liu@intel.com>
Message-Id: <20240709142557.317271-4-clement.mathieu--drif@eviden.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>

hw/i386/intel_iommu_internal.h

diff --git a/hw/i386/intel_iommu_internal.h b/hw/i386/intel_iommu_internal.h
index faea23e..5f32c36 100644
--- a/hw/i386/intel_iommu_internal.h
+++ b/hw/i386/intel_iommu_internal.h
@@ -436,7 +436,7 @@
     uint16_t domain_id;
     uint32_t pasid;
     uint64_t addr;
-    uint8_t mask;
+    uint64_t mask;
 };
 typedef struct VTDIOTLBPageInvInfo VTDIOTLBPageInvInfo;