diff options
| author | Wanpeng Li <[email protected]> | 2017-12-12 17:33:04 -0800 |
|---|---|---|
| committer | Radim Krčmář <[email protected]> | 2018-01-16 16:34:13 +0100 |
| commit | f38a7b75267f1fb240a8178cbcb16d66dd37aac8 (patch) | |
| tree | 6dd7bcbd99a7021e78b065e60b7b46f26d1571ad /tools/perf/scripts/python/call-graph-from-sql.py | |
| parent | c2ba05ccfde2f069a66c0462e5b5ef8a517dcc9c (diff) | |
KVM: X86: support paravirtualized help for TLB shootdowns
When running on a virtual machine, IPIs are expensive when the target
CPU is sleeping. Thus, it is nice to be able to avoid them for TLB
shootdowns. KVM can just do the flush via INVVPID on the guest's behalf
the next time the CPU is scheduled.
Cc: Paolo Bonzini <[email protected]>
Cc: Radim Krčmář <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Signed-off-by: Wanpeng Li <[email protected]>
[Use "&" to test the bit instead of "==". - Paolo]
Signed-off-by: Paolo Bonzini <[email protected]>
Signed-off-by: Radim Krčmář <[email protected]>
Diffstat (limited to 'tools/perf/scripts/python/call-graph-from-sql.py')
0 files changed, 0 insertions, 0 deletions