Displaying 1 result from an estimated 1 matches for "remove_all_map".
2009 Oct 23
0
[PATCH] Shadow dirty-VRAM: avoid multiple remove_all_mappings calls.
sh_remove_all_mappings() will walk roughly half of the shadow L1 tables
for each MFN it''s called with; calling it for every MFN in a guest''s
framebuffer can be _very_ expensive, especially with the shadow lock
held across the whole operation. Avoid that by just blowing away all
the shadows.
Signe...