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| author | Chris Wright <chrisw@sous-sol.org> | 2009-06-15 15:53:45 +0200 |
|---|---|---|
| committer | Joerg Roedel <joerg.roedel@amd.com> | 2009-06-15 15:53:45 +0200 |
| commit | a8c485bb6857811807d42f9fd1fde2f5f89cc5c9 (patch) | |
| tree | a87f877258454e5d48a39162d895a0fada250a36 /arch/x86/kernel/setup.c | |
| parent | 42a49f965a8d24ed92af04f5b564d63f17fd9c56 (diff) | |
amd-iommu: disable cmd buffer and evt logging before reprogramming iommu
The IOMMU spec states that IOMMU behavior may be undefined when the
IOMMU registers are rewritten while command or event buffer is enabled.
Disable them in IOMMU disable path.
Signed-off-by: Chris Wright <chrisw@sous-sol.org>
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
Diffstat (limited to 'arch/x86/kernel/setup.c')
0 files changed, 0 insertions, 0 deletions