Commit 3b6fff19 authored by Uri Lublin's avatar Uri Lublin Committed by Avi Kivity
Browse files

KVM: Make mark_page_dirty() work for aliased pages too. 



Recommended by Izik Eidus.

Signed-off-by: default avatarUri Lublin <uril@qumranet.com>
Signed-off-by: default avatarAvi Kivity <avi@qumranet.com>
parent 9f1ef3f8

drivers/kvm/kvm_main.c

+1 −1
Original line number Diff line number Diff line
@@ -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;