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KVM: MMU: bail out pagewalk on kvm_read_guest error
authorMarcelo Tosatti <mtosatti@redhat.com>
Thu, 14 Jan 2010 19:41:27 +0000 (17:41 -0200)
committerGreg Kroah-Hartman <gregkh@suse.de>
Thu, 28 Jan 2010 23:02:45 +0000 (15:02 -0800)
commit493821093f18655d39f16e31264c00b022640701
treea98937171fcb17813c95413d284936f97029e336tree | snapshot
parent59cf8545b9b307b15441f07dec587b7774484789commit | diff
KVM: MMU: bail out pagewalk on kvm_read_guest error

commit a6085fbaf65ab09bfb5ec8d902d6d21680fe1895 upstream.

Exit the guest pagetable walk loop if reading gpte failed. Otherwise its
possible to enter an endless loop processing the previous present pte.

Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
arch/x86/kvm/paging_tmpl.h diff | blob | history
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