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KVM: MMU: clear apfs if page state is changed
authorXiao Guangrong <xiaoguangrong@cn.fujitsu.com>
Fri, 12 Nov 2010 06:47:01 +0000 (14:47 +0800)
committerAvi Kivity <avi@redhat.com>
Wed, 12 Jan 2011 09:29:12 +0000 (11:29 +0200)
commitc2ad0f6696dde0af6aeade070b889bafd18ebf2d
tree7c8ad1d7cd4d5ab21a71dfe23f0bdf9a0b98caf3tree | snapshot
parent01359a534dda7b347e4e380ed355caed2de915aacommit | diff
KVM: MMU: clear apfs if page state is changed

If CR0.PG is changed, the page fault cann't be avoid when the prefault address
is accessed later

And it also fix a bug: it can retry a page enabled #PF in page disabled context
if mmu is shadow page

This idear is from Gleb Natapov

Signed-off-by: Xiao Guangrong <xiaoguangrong@cn.fujitsu.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
arch/x86/kvm/x86.c diff | blob | history
Linux Kernel Source Tree.