diff options
| author | Gary R Hook <gary.hook@amd.com> | 2017-01-27 15:28:45 -0600 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2017-02-03 17:45:45 +0800 |
| commit | 500c0106e638e08c2c661c305ed57d6b67e10908 (patch) | |
| tree | 8fcb8de6b8ee55537f6866bd2bf3ba128f22a803 /tools/testing/selftests/vm/hugepage-shm.c | |
| parent | f5f7bebc91ab378dea5aad5277c4d283e46472d9 (diff) | |
crypto: ccp - Fix DMA operations when IOMMU is enabled
An I/O page fault occurs when the IOMMU is enabled on a
system that supports the v5 CCP. DMA operations use a
Request ID value that does not match what is expected by
the IOMMU, resulting in the I/O page fault. Setting the
Request ID value to 0 corrects this issue.
Cc: <stable@vger.kernel.org>
Signed-off-by: Gary R Hook <gary.hook@amd.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'tools/testing/selftests/vm/hugepage-shm.c')
0 files changed, 0 insertions, 0 deletions