linux-stable

mirror of https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git synced 2025-01-09 14:43:16 +00:00

History

Christoph Hellwig 4fe87e818e dma-mapping: move pgprot_decrypted out of dma_pgprot

pgprot_decrypted is used by AMD SME systems to allow access to memory
that was set to not encrypted using set_memory_decrypted.  That only
happens for dma-direct memory as the IOMMU solves the addressing
challenges for the encryption bit using its own remapping.

Move the pgprot_decrypted call out of dma_pgprot which is also used
by the IOMMU mappings and into dma-direct so that it is only used with
memory that was set decrypted.

Fixes: f5ff79fddf0e ("dma-mapping: remove CONFIG_DMA_REMAP")
Reported-by: Alex Xu (Hello71) <alex_y_xu@yahoo.ca>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Tested-by: Alex Xu (Hello71) <alex_y_xu@yahoo.ca>

2022-04-01 06:46:51 +02:00

coherent.c

dma-mapping: use 'bitmap_zalloc()' when applicable

2021-10-27 08:20:09 +02:00

contiguous.c

cma: factor out minimum alignment requirement

2022-03-22 15:57:05 -07:00

debug.c

dma-debug: fix return value of __setup handlers

2022-03-03 14:01:45 +03:00

debug.h

dma-debug: teach add_dma_entry() about DMA_ATTR_SKIP_CPU_SYNC