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| author | Feng Wu <feng.wu@intel.com> | 2015-10-15 10:19:11 +0800 |
|---|---|---|
| committer | Joerg Roedel <jroedel@suse.de> | 2015-10-15 16:21:55 +0200 |
| commit | 344cb4e0b6f3a0dbef0643eacb4946338eb228c0 (patch) | |
| tree | 2141ccf81ee92feef6f2073009df3523607cd847 /Documentation/isdn | |
| parent | dfddb969edf021f21a45fc6fd019db4f99d12308 (diff) | |
| download | linux-stable-344cb4e0b6f3a0dbef0643eacb4946338eb228c0.tar.gz linux-stable-344cb4e0b6f3a0dbef0643eacb4946338eb228c0.tar.bz2 linux-stable-344cb4e0b6f3a0dbef0643eacb4946338eb228c0.zip | |
iommu/vt-d: Use cmpxchg16b to update posted format IRTE atomically
If IRTE is in posted format, the 'pda' field goes across the 64-bit
boundary, we need use cmpxchg16b to atomically update it. We only
expose posted-interrupt when X86_FEATURE_CX16 is supported and use
to update it atomically.
Signed-off-by: Feng Wu <feng.wu@intel.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Diffstat (limited to 'Documentation/isdn')
0 files changed, 0 insertions, 0 deletions