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| author | Joerg Roedel <joerg.roedel@amd.com> | 2009-06-09 17:52:27 +0200 |
|---|---|---|
| committer | Joerg Roedel <joerg.roedel@amd.com> | 2009-06-15 15:20:40 +0200 |
| commit | 0975904276552c8e201dad0ad31152ba8a21505a (patch) | |
| tree | c7db491abe7dcb001c46ad30341475755f5b07ca /arch/x86/kernel/amd_iommu_init.c | |
| parent | 92db1e6af747faa129e236d68386af26a0efc12b (diff) | |
| download | blackbird-op-linux-0975904276552c8e201dad0ad31152ba8a21505a.tar.gz blackbird-op-linux-0975904276552c8e201dad0ad31152ba8a21505a.zip | |
amd-iommu: disable IOMMU hardware on shutdown
When the IOMMU stays enabled the BIOS may not be able to finish the
machine shutdown properly. So disable the hardware on shutdown.
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
Diffstat (limited to 'arch/x86/kernel/amd_iommu_init.c')
| -rw-r--r-- | arch/x86/kernel/amd_iommu_init.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/arch/x86/kernel/amd_iommu_init.c b/arch/x86/kernel/amd_iommu_init.c index 238989ec077d..575ca46211bb 100644 --- a/arch/x86/kernel/amd_iommu_init.c +++ b/arch/x86/kernel/amd_iommu_init.c @@ -1273,6 +1273,11 @@ free: goto out; } +void amd_iommu_shutdown(void) +{ + disable_iommus(); +} + /**************************************************************************** * * Early detect code. This code runs at IOMMU detection time in the DMA |
