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| author | Nadav Amit <nadav.amit@gmail.com> | 2010-04-01 12:24:40 +0200 |
|---|---|---|
| committer | David Woodhouse <David.Woodhouse@intel.com> | 2010-04-09 16:39:21 +0200 |
| commit | 82653633b6161cdecc011d15bc9df1c7489bd9a2 (patch) | |
| tree | 788049fff6372963e8685fda8badc4d82246464a /drivers/usb | |
| parent | intel-iommu mistakenly uses offset_pfn when caching mode is enabled (diff) | |
| download | linux-82653633b6161cdecc011d15bc9df1c7489bd9a2.tar.xz linux-82653633b6161cdecc011d15bc9df1c7489bd9a2.zip | |
intel-iommu: Use correct domain ID when caching mode is enabled
In caching-mode mappings of pages (changes from non-present to present)
require invalidation.
Currently, this IOTLB flush is performed with domain ID of zero.
This is not according to the VT-d spec and causes big problems for
emulating software.
This patch uses the correct domain ID in IOTLB flushes.
Device IOTLB invalidation is performed only on present to non-present
changes. This decision is now based on explicit parameter instead of
zero domain-ID.
Signed-off-by: Nadav Amit <nadav.amit@gmail.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Diffstat (limited to 'drivers/usb')
0 files changed, 0 insertions, 0 deletions