[PATCH 03/11] KVM: MMU: Set shadow pte atomically in mmu_pte_write_zap_pte()

Avi Kivity
2007-10-21T11:08:04Z

From: Izik Eidus <izike-atKUWr5tajBWk0Htik3J/w@public.gmane.org>

Setting shadow page table entry should be set atomicly using set_shadow_pte().

Signed-off-by: Izik Eidus <izike-atKUWr5tajBWk0Htik3J/w@public.gmane.org>
Signed-off-by: Avi Kivity <avi-atKUWr5tajBWk0Htik3J/w@public.gmane.org>
---
drivers/kvm/mmu.c | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/drivers/kvm/mmu.c b/drivers/kvm/mmu.c
index 6d84d30..7171618 100644
--- a/drivers/kvm/mmu.c
+++ b/drivers/kvm/mmu.c
@@ -1088,7 +1088,7 @@ static void mmu_pte_write_zap_pte(struct kvm_vcpu *vcpu,
mmu_page_remove_parent_pte(child, spte);
}
}
- *spte = 0;
+ set_shadow_pte(spte, 0);
kvm_flush_remote_tlbs(vcpu->kvm);