From: Dor Laor <[EMAIL PROTECTED]>

Every write access to guest pages should be tracked.

Signed-off-by: Dor Laor <[EMAIL PROTECTED]>
Signed-off-by: Izik Eidus <[EMAIL PROTECTED]>
Signed-off-by: Avi Kivity <[EMAIL PROTECTED]>

diff --git a/drivers/kvm/kvm_main.c b/drivers/kvm/kvm_main.c
index 559aa34..4446ded 100644
--- a/drivers/kvm/kvm_main.c
+++ b/drivers/kvm/kvm_main.c
@@ -706,6 +706,7 @@ int kvm_clear_guest_page(struct kvm *kvm, gfn_t gfn, int 
offset, int len)
 
        kunmap_atomic(page_virt, KM_USER0);
        kvm_release_page(page);
+       mark_page_dirty(kvm, gfn);
        return 0;
 }
 EXPORT_SYMBOL_GPL(kvm_clear_guest_page);

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