From 121eee97a7802acda8b78436cc53196e9885549f Mon Sep 17 00:00:00 2001 From: Avi Kivity Date: Tue, 13 Jul 2010 14:27:05 +0300 Subject: [PATCH] KVM: MMU: Use __set_spte to link shadow pages To avoid split accesses to 64 bit sptes on i386, use __set_spte() to link shadow pages together. (not technically required since shadow pages are __GFP_KERNEL, so upper 32 bits are always clear) Reviewed-by: Xiao Guangrong Signed-off-by: Avi Kivity Signed-off-by: Marcelo Tosatti --- arch/x86/kvm/mmu.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c index df3a7a79cce3..5a6019a534a3 100644 --- a/arch/x86/kvm/mmu.c +++ b/arch/x86/kvm/mmu.c @@ -1489,7 +1489,7 @@ static void link_shadow_page(u64 *sptep, struct kvm_mmu_page *sp) spte = __pa(sp->spt) | PT_PRESENT_MASK | PT_ACCESSED_MASK | PT_WRITABLE_MASK | PT_USER_MASK; - *sptep = spte; + __set_spte(sptep, spte); } static void kvm_mmu_page_unlink_children(struct kvm *kvm, -- 2.39.5