| commit | 78d5f0f500e6ba8f6cfd0673475ff4d941d705a2 | [log] [tgz] |
|---|---|---|
| author | Nadav Amit <nadav.amit@gmail.com> | Thu Apr 08 23:00:41 2010 +0300 |
| committer | David Woodhouse <David.Woodhouse@intel.com> | Fri Apr 09 15:54:41 2010 +0100 |
| tree | d992607aba2b178a251d52d4e2ac6f9c62709c10 | |
| parent | 82653633b6161cdecc011d15bc9df1c7489bd9a2 [diff] |
intel-iommu: Avoid global flushes with caching mode. While it may be efficient on real hardware, emulation of global invalidations is very expensive as all shadow entries must be examined. This patch changes the behaviour when caching mode is enabled (which is the case when IOMMU emulation takes place). In this case, page specific invalidation is used instead. Signed-off-by: Nadav Amit <nadav.amit@gmail.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>