From: Gianluca Guida <gianluca.guida@eu.citrix.com>
To: "xen-devel@lists.xensource.com" <xen-devel@lists.xensource.com>
Subject: [PATCH] shadow: fix audit mode.
Date: Tue, 28 Apr 2009 15:46:53 +0100 [thread overview]
Message-ID: <49F716DD.3020807@eu.citrix.com> (raw)
[-- Attachment #1: Type: text/plain, Size: 132 bytes --]
Splintered L1s can have the dirty bit clean because of vram tracking.
Signed-off-by: Gianluca Guida <gianluca.guida@eu.citrix.com>
[-- Attachment #2: fix-audit.patch --]
[-- Type: text/x-diff, Size: 737 bytes --]
diff -r 9fdcd3ab84b7 xen/arch/x86/mm/shadow/multi.c
--- a/xen/arch/x86/mm/shadow/multi.c Mon Apr 27 15:40:09 2009 +0100
+++ b/xen/arch/x86/mm/shadow/multi.c Tue Apr 28 15:45:21 2009 +0100
@@ -4987,6 +4987,9 @@ int sh_audit_fl1_table(struct vcpu *v, m
f &= ~(_PAGE_AVAIL0|_PAGE_AVAIL1|_PAGE_AVAIL2);
if ( !(f == 0
|| f == (_PAGE_PRESENT|_PAGE_USER|_PAGE_RW|
+ _PAGE_ACCESSED)
+ || f == (_PAGE_PRESENT|_PAGE_USER|_PAGE_ACCESSED)
+ || f == (_PAGE_PRESENT|_PAGE_USER|_PAGE_RW|
_PAGE_ACCESSED|_PAGE_DIRTY)
|| f == (_PAGE_PRESENT|_PAGE_USER|_PAGE_ACCESSED|_PAGE_DIRTY)
|| sh_l1e_is_magic(*sl1e)) )
[-- Attachment #3: Type: text/plain, Size: 138 bytes --]
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