diff options
| author |   Linus Torvalds <torvalds@linux-foundation.org> | 2020-03-31 11:51:05 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2020-03-31 11:51:05 -0700 |
| commit | d9d76778927dc953c553b83ab52287dfbd15ac6a (patch) | |
| tree | c37938c2f3834b72fc7d1ee790774d5d82054986 /kernel | |
| parent | Merge branch 'x86-misc-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip (diff) | |
| parent | x86/mm: Remove the now redundant N_MEMORY check (diff) | |
| download | linux-dev-d9d76778927dc953c553b83ab52287dfbd15ac6a.tar.xz linux-dev-d9d76778927dc953c553b83ab52287dfbd15ac6a.zip | |
Merge branch 'x86-mm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 mm updates from Ingo Molnar:
"A handful of changes:
- two memory encryption related fixes
- don't display the kernel's virtual memory layout plaintext on
32-bit kernels either
- two simplifications"
* 'x86-mm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/mm: Remove the now redundant N_MEMORY check
dma-mapping: Fix dma_pgprot() for unencrypted coherent pages
x86: Don't let pgprot_modify() change the page encryption bit
x86/mm/kmmio: Use this_cpu_ptr() instead get_cpu_var() for kmmio_ctx
x86/mm/init/32: Stop printing the virtual memory layout
Diffstat (limited to 'kernel')
| -rw-r--r-- | kernel/dma/mapping.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/kernel/dma/mapping.c b/kernel/dma/mapping.c index 12ff766ec1fa..98e3d873792e 100644 --- a/kernel/dma/mapping.c +++ b/kernel/dma/mapping.c @@ -154,6 +154,8 @@ EXPORT_SYMBOL(dma_get_sgtable_attrs); */ pgprot_t dma_pgprot(struct device *dev, pgprot_t prot, unsigned long attrs) { + if (force_dma_unencrypted(dev)) + prot = pgprot_decrypted(prot); if (dev_is_dma_coherent(dev) || (IS_ENABLED(CONFIG_DMA_NONCOHERENT_CACHE_SYNC) && (attrs & DMA_ATTR_NON_CONSISTENT))) |