tree 13cec1f9eebcc01928381105cb628e09e195ad0b
parent 982c25658c066fbbeb42e44a6a8fcd59ae008837
author Marcelo Tosatti <mtosatti@redhat.com> 1287764297 -0200
committer Avi Kivity <avi@redhat.com> 1294824219 +0200

KVM: MMU: flush TLBs on writable -> read-only spte overwrite

This can happen in the following scenario:

vcpu0			vcpu1
read fault
gup(.write=0)
			gup(.write=1)
			reuse swap cache, no COW
			set writable spte
			use writable spte
set read-only spte

Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Signed-off-by: Avi Kivity <avi@redhat.com>