diff options
| author | Junaid Shahid <[email protected]> | 2019-11-04 20:26:00 +0100 |
|---|---|---|
| committer | Thomas Gleixner <[email protected]> | 2019-11-04 20:26:00 +0100 |
| commit | 1aa9b9572b10529c2e64e2b8f44025d86e124308 (patch) | |
| tree | 8986b81fe6ccb070a657d3f37b1963a790890c21 /tools/perf/scripts/python/Perf-Trace-Util | |
| parent | c57c80467f90e5504c8df9ad3555d2c78800bf94 (diff) | |
kvm: x86: mmu: Recovery of shattered NX large pages
The page table pages corresponding to broken down large pages are zapped in
FIFO order, so that the large page can potentially be recovered, if it is
not longer being used for execution. This removes the performance penalty
for walking deeper EPT page tables.
By default, one large page will last about one hour once the guest
reaches a steady state.
Signed-off-by: Junaid Shahid <[email protected]>
Signed-off-by: Paolo Bonzini <[email protected]>
Signed-off-by: Thomas Gleixner <[email protected]>
Diffstat (limited to 'tools/perf/scripts/python/Perf-Trace-Util')
0 files changed, 0 insertions, 0 deletions