diff options
| author | Paolo Bonzini <pbonzini@redhat.com> | 2020-09-11 13:12:11 -0400 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2020-09-11 13:12:11 -0400 |
| commit | 1b67fd086dd7be076f190dfe4b52403d0cf58375 (patch) | |
| tree | b7ea623c62bd8b1a1310c5e9d24dbf155a9d04aa /kernel/dma/Kconfig | |
| parent | b5331379bc62611d1026173a09c73573384201d9 (diff) | |
| parent | 7b75cd5128421c673153efb1236705696a1a9812 (diff) | |
Merge tag 'kvmarm-fixes-5.9-1' of git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm into HEAD
KVM/arm64 fixes for Linux 5.9, take #1
- Multiple stolen time fixes, with a new capability to match x86
- Fix for hugetlbfs mappings when PUD and PMD are the same level
- Fix for hugetlbfs mappings when PTE mappings are enforced
(dirty logging, for example)
- Fix tracing output of 64bit values
Diffstat (limited to 'kernel/dma/Kconfig')
| -rw-r--r-- | kernel/dma/Kconfig | 8 |
1 files changed, 3 insertions, 5 deletions
diff --git a/kernel/dma/Kconfig b/kernel/dma/Kconfig index f4770fcfa62b..847a9d1fa634 100644 --- a/kernel/dma/Kconfig +++ b/kernel/dma/Kconfig @@ -1,5 +1,8 @@ # SPDX-License-Identifier: GPL-2.0-only +config NO_DMA + bool + config HAS_DMA bool depends on !NO_DMA @@ -186,11 +189,6 @@ config DMA_API_DEBUG drivers like double-freeing of DMA mappings or freeing mappings that were never allocated. - This also attempts to catch cases where a page owned by DMA is - accessed by the cpu in a way that could cause data corruption. For - example, this enables cow_user_page() to check that the source page is - not undergoing DMA. - This option causes a performance degradation. Use only if you want to debug device drivers and dma interactions. |