Suravee Suthikulpanit 6d39bdee23 iommu/amd: Enforce 4k mapping for certain IOMMU data structures ... AMD IOMMU requires 4k-aligned pages for the event log, the PPR log, and the completion wait write-back regions. However, when allocating the pages, they could be part of large mapping (e.g. 2M) page. This causes #PF due to the SNP RMP hardware enforces the check based on the page level for these data structures. So, fix by calling set_memory_4k() on the allocated pages. Fixes: c69d89aff3 ("iommu/amd: Use 4K page for completion wait write-back semaphore") Signed-off-by: Suravee Suthikulpanit <suravee.suthikulpanit@amd.com> Cc: Brijesh Singh <brijesh.singh@amd.com> Link: https://lore.kernel.org/r/20201105145832.3065-1-suravee.suthikulpanit@amd.com Signed-off-by: Will Deacon <will@kernel.org>		2020-11-23 12:52:04 +00:00
..
amd_iommu.h	IOMMU Updates for Linux v5.10	2020-10-14 12:08:34 -07:00
amd_iommu_types.h	iommu/amd: Increase interrupt remapping table limit to 512 entries	2020-11-03 14:21:10 +01:00
debugfs.c
init.c	iommu/amd: Enforce 4k mapping for certain IOMMU data structures	2020-11-23 12:52:04 +00:00
iommu.c	dma-mapping updates for 5.10	2020-10-15 14:43:29 -07:00
iommu_v2.c	drm, iommu: Change type of pasid to u32	2020-09-17 19:21:16 +02:00
Kconfig	iommu/amd: Use cmpxchg_double() when updating 128-bit IRTE	2020-09-04 11:53:18 +02:00
Makefile	iommu/amd: Move Kconfig and Makefile bits down into amd directory	2020-07-29 14:15:36 +02:00
quirks.c