KVM: MMU: prefetch ptes when intercepted guest #PF

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Support prefetch ptes when intercept guest #PF, avoid to #PF by later
access

If we meet any failure in the prefetch path, we will exit it and
not try other ptes to avoid become heavy path

Signed-off-by: Xiao Guangrong <xiaoguangrong@cn.fujitsu.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>

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Xiao Guangrong 2010-08-22 19:12:48 +08:00 • committed by Avi Kivity

parent 48987781eb

commit 957ed9effd

2 changed files with 175 additions and 1 deletions

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104

arch/x86/kvm/mmu.c

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72

arch/x86/kvm/paging_tmpl.h

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