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Commit a5040830 authored by Liu Yi L's avatar Liu Yi L Committed by Greg Kroah-Hartman
Browse files

iommu/vt-d: Enforce PASID devTLB field mask 



[ Upstream commit 5f77d6ca5ca74e4b4a5e2e010f7ff50c45dea326 ]

Set proper masks to avoid invalid input spillover to reserved bits.

Signed-off-by: default avatarLiu Yi L <yi.l.liu@intel.com>
Signed-off-by: default avatarJacob Pan <jacob.jun.pan@linux.intel.com>
Signed-off-by: default avatarLu Baolu <baolu.lu@linux.intel.com>
Reviewed-by: default avatarEric Auger <eric.auger@redhat.com>
Link: https://lore.kernel.org/r/20200724014925.15523-2-baolu.lu@linux.intel.com


Signed-off-by: default avatarJoerg Roedel <jroedel@suse.de>
Signed-off-by: default avatarSasha Levin <sashal@kernel.org>
parent b9b2092a

include/linux/intel-iommu.h

+2 −2
Original line number Diff line number Diff line
@@ -308,8 +308,8 @@ enum { 


#define QI_DEV_EIOTLB_ADDR(a)	((u64)(a) & VTD_PAGE_MASK)

#define QI_DEV_EIOTLB_SIZE	(((u64)1) << 11)

#define QI_DEV_EIOTLB_GLOB(g)	((u64)g)

#define QI_DEV_EIOTLB_PASID(p)	(((u64)p) << 32)

#define QI_DEV_EIOTLB_GLOB(g)	((u64)(g) & 0x1)

#define QI_DEV_EIOTLB_PASID(p)	((u64)((p) & 0xfffff) << 32)

#define QI_DEV_EIOTLB_SID(sid)	((u64)((sid) & 0xffff) << 16)

#define QI_DEV_EIOTLB_QDEP(qd)	((u64)((qd) & 0x1f) << 4)

#define QI_DEV_EIOTLB_PFSID(pfsid) (((u64)(pfsid & 0xf) << 12) | \