diff options
| author | Boris Ostrovsky <[email protected]> | 2019-12-05 01:30:51 +0000 |
|---|---|---|
| committer | Paolo Bonzini <[email protected]> | 2020-01-30 18:45:55 +0100 |
| commit | 917248144db5d7320655dbb41d3af0b8a0f3d589 (patch) | |
| tree | 4c865f9aeb61137847ce9d283bc33febded17714 /scripts/gcc-plugins/cyc_complexity_plugin.c | |
| parent | 1eff70a9abd46f175defafd29bc17ad456f398a7 (diff) | |
x86/kvm: Cache gfn to pfn translation
__kvm_map_gfn()'s call to gfn_to_pfn_memslot() is
* relatively expensive
* in certain cases (such as when done from atomic context) cannot be called
Stashing gfn-to-pfn mapping should help with both cases.
This is part of CVE-2019-3016.
Signed-off-by: Boris Ostrovsky <[email protected]>
Reviewed-by: Joao Martins <[email protected]>
Cc: [email protected]
Signed-off-by: Paolo Bonzini <[email protected]>
Diffstat (limited to 'scripts/gcc-plugins/cyc_complexity_plugin.c')
0 files changed, 0 insertions, 0 deletions