kernel-fxtec-pro1x/arch/x86/kvm
Marcelo Tosatti 6c475352e8 KVM: MMU: avoid creation of unreachable pages in the shadow
It is possible for a shadow page to have a parent link
pointing to a freed page. When zapping a high level table,
kvm_mmu_page_unlink_children fails to remove the parent_pte link.
For that to happen, the child must be unreachable via the shadow
tree, which can happen in shadow_walk_entry if the guest pte was
modified in between walk() and fetch(). Remove the parent pte
reference in such case.

Possible cause for oops in bug #2217430.

Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
2008-11-26 12:34:27 +02:00
..
i8254.c
i8254.h
i8259.c
irq.c
irq.h
Kconfig
kvm_cache_regs.h
kvm_svm.h
lapic.c
lapic.h
Makefile
mmu.c
mmu.h
paging_tmpl.h KVM: MMU: avoid creation of unreachable pages in the shadow 2008-11-26 12:34:27 +02:00
svm.c
svm.h
tss.h
vmx.c
vmx.h
x86.c
x86.h
x86_emulate.c