From 374cbac0333ddf5cf1c6637efaf7f3adcc67fd75 Mon Sep 17 00:00:00 2001 From: Avi Kivity Date: Fri, 5 Jan 2007 16:36:43 -0800 Subject: [PATCH] KVM: MMU: Write protect guest pages when a shadow is created for them When we cache a guest page table into a shadow page table, we need to prevent further access to that page by the guest, as that would render the cache incoherent. Signed-off-by: Avi Kivity Acked-by: Ingo Molnar Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/kvm/paging_tmpl.h | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers/kvm/paging_tmpl.h') diff --git a/drivers/kvm/paging_tmpl.h b/drivers/kvm/paging_tmpl.h index f7cce443ca6..cd71973c780 100644 --- a/drivers/kvm/paging_tmpl.h +++ b/drivers/kvm/paging_tmpl.h @@ -133,6 +133,7 @@ static void FNAME(walk_addr)(struct guest_walker *walker, walker->level - 1, table_gfn); } walker->ptep = ptep; + pgprintk("%s: pte %llx\n", __FUNCTION__, (u64)*ptep); } static void FNAME(release_walker)(struct guest_walker *walker) -- cgit v1.2.3