KVM: Add a might_sleep() annotation to gfn_to_page()

This will help trap accesses to guest memory in atomic context. Signed-off-by: Avi Kivity <avi@qumranet.com>
git-mirror · Jan 30, 2008 · 6039522 · 6039522
1 parent e00c8cf
commit 6039522
Showing 1 changed file with 2 additions and 0 deletions.
diff --git a/drivers/kvm/kvm_main.c b/drivers/kvm/kvm_main.c
@@ -993,6 +993,8 @@ struct page *gfn_to_page(struct kvm *kvm, gfn_t gfn)
 	struct page *page[1];
 	int npages;
 
+	might_sleep();
+
 	gfn = unalias_gfn(kvm, gfn);
 	slot = __gfn_to_memslot(kvm, gfn);
 	if (!slot) {