The patch titled
KVM: MMU: Add missing dirty bit
has been removed from the -mm tree. Its filename was
kvm-mmu-add-missing-dirty-bit.patch
This patch was dropped because it was merged into mainline or a subsystem tree
------------------------------------------------------
Subject: KVM: MMU: Add missing dirty bit
From: Avi Kivity <avi@xxxxxxxxxxxx>
If we emulate a write, we fail to set the dirty bit on the guest pte, leading
the guest to believe the page is clean, and thus lose data. Bad.
Fix by setting the guest pte dirty bit under such conditions.
Signed-off-by: Avi Kivity <avi@xxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxx>
---
drivers/kvm/paging_tmpl.h | 1 +
1 file changed, 1 insertion(+)
diff -puN drivers/kvm/paging_tmpl.h~kvm-mmu-add-missing-dirty-bit drivers/kvm/paging_tmpl.h
--- a/drivers/kvm/paging_tmpl.h~kvm-mmu-add-missing-dirty-bit
+++ a/drivers/kvm/paging_tmpl.h
@@ -317,6 +317,7 @@ static int FNAME(fix_write_pf)(struct kv
} else if (kvm_mmu_lookup_page(vcpu, gfn)) {
pgprintk("%s: found shadow page for %lx, marking ro\n",
__FUNCTION__, gfn);
+ *guest_ent |= PT_DIRTY_MASK;
*write_pt = 1;
return 0;
}
_
Patches currently in -mm which might be from avi@xxxxxxxxxxxx are
-
To unsubscribe from this list: send the line "unsubscribe mm-commits" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
