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| author |   Alex Shi <alex.shi@intel.com> | 2012-06-28 09:02:20 +0800 |
|---|---|---|
| committer |   H. Peter Anvin <hpa@zytor.com> | 2012-06-27 19:29:10 -0700 |
| commit | 3df3212f9722c7e45c723b9ea231a04ba4dbc47c (patch) | |
| tree | cb93a81efb12b91813ed69e86bc5be24ca31de9d /mm | |
| parent | x86/tlb: add tlb_flushall_shift for specific CPU (diff) | |
| download | linux-dev-3df3212f9722c7e45c723b9ea231a04ba4dbc47c.tar.xz linux-dev-3df3212f9722c7e45c723b9ea231a04ba4dbc47c.zip | |
x86/tlb: add tlb_flushall_shift knob into debugfs
kernel will replace cr3 rewrite with invlpg when
tlb_flush_entries <= active_tlb_entries / 2^tlb_flushall_factor
if tlb_flushall_factor is -1, kernel won't do this replacement.
User can modify its value according to specific CPU/applications.
Thanks for Borislav providing the help message of
CONFIG_DEBUG_TLBFLUSH.
Signed-off-by: Alex Shi <alex.shi@intel.com>
Link: http://lkml.kernel.org/r/1340845344-27557-6-git-send-email-alex.shi@intel.com
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Diffstat (limited to 'mm')
0 files changed, 0 insertions, 0 deletions