Chris Wilson 29aaebbca4 iommu/vt-d: Handle 36bit addressing for x86-32 ... Beware that the address size for x86-32 may exceed unsigned long. [ 0.368971] UBSAN: shift-out-of-bounds in drivers/iommu/intel/iommu.c:128:14 [ 0.369055] shift exponent 36 is too large for 32-bit type 'long unsigned int' If we don't handle the wide addresses, the pages are mismapped and the device read/writes go astray, detected as DMAR faults and leading to device failure. The behaviour changed (from working to broken) in commit fa954e6831 ("iommu/vt-d: Delegate the dma domain to upper layer"), but the error looks older. Fixes: fa954e6831 ("iommu/vt-d: Delegate the dma domain to upper layer") Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Acked-by: Lu Baolu <baolu.lu@linux.intel.com> Cc: James Sewart <jamessewart@arista.com> Cc: Lu Baolu <baolu.lu@linux.intel.com> Cc: Joerg Roedel <jroedel@suse.de> Cc: <stable@vger.kernel.org> # v5.3+ Link: https://lore.kernel.org/r/20200822160209.28512-1-chris@chris-wilson.co.uk Signed-off-by: Joerg Roedel <jroedel@suse.de>		2020-09-04 12:14:28 +02:00
..
Kconfig	IOMMU Updates for Linux v5.9	2020-08-11 14:13:24 -07:00
Makefile	…
debugfs.c	…
dmar.c	…
iommu.c	iommu/vt-d: Handle 36bit addressing for x86-32	2020-09-04 12:14:28 +02:00
irq_remapping.c	iommu/vt-d: Serialize IOMMU GCMD register modifications	2020-09-04 11:39:21 +02:00
pasid.c	…
pasid.h	…
svm.c	Merge branch 'akpm' (patches from Andrew)	2020-08-12 11:24:12 -07:00
trace.c	…