From 3b6fff198c2ae3ca87ee8c9103d52ac9e8f40dd5 Mon Sep 17 00:00:00 2001
From: Uri Lublin <uril@qumranet.com>
Date: Tue, 30 Oct 2007 10:42:09 +0200
Subject: [PATCH] KVM: Make mark_page_dirty() work for aliased pages too.
Recommended by Izik Eidus.
Signed-off-by: Uri Lublin <uril@qumranet.com>
Signed-off-by: Avi Kivity <avi@qumranet.com>
---
drivers/kvm/kvm_main.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/kvm/kvm_main.c b/drivers/kvm/kvm_main.c
index 2025cdfb4593..cac66d505f57 100644
--- a/drivers/kvm/kvm_main.c
+++ b/drivers/kvm/kvm_main.c
@@ -796,11 +796,11 @@ int kvm_clear_guest(struct kvm *kvm, gpa_t gpa, unsigned long len)
}
EXPORT_SYMBOL_GPL(kvm_clear_guest);
-/* WARNING: Does not work on aliased pages. */
void mark_page_dirty(struct kvm *kvm, gfn_t gfn)
{
struct kvm_memory_slot *memslot;
+ gfn = unalias_gfn(kvm, gfn);
memslot = __gfn_to_memslot(kvm, gfn);
if (memslot && memslot->dirty_bitmap) {
unsigned long rel_gfn = gfn - memslot->base_gfn;
--
2.20.1