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[Xen-devel] [PATCH][VT] Use entry_get_paddr(l1e) to get the PFN

To: Ian Pratt <Ian.Pratt@xxxxxxxxxxxx>, Keir Fraser <Keir.Fraser@xxxxxxxxxxxx>
Subject: [Xen-devel] [PATCH][VT] Use entry_get_paddr(l1e) to get the PFN
From: Arun Sharma <arun.sharma@xxxxxxxxx>
Date: Wed, 31 Aug 2005 15:24:55 -0700
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Use entry_get_paddr(l1e) to get the PFN

Otherwise software used bits might get in the way.

Signed-off-by: Arun Sharma <arun.sharma@xxxxxxxxx>

--- a/xen/include/asm-x86/shadow_64.h   Wed Aug 31 14:53:43 2005
+++ b/xen/include/asm-x86/shadow_64.h   Wed Aug 31 15:03:09 2005
@@ -450,7 +450,9 @@
         * If it's not external mode, then mfn should be machine physical.
-       mfn = __gpfn_to_mfn(d, (entry_get_value(gle) >> PAGE_SHIFT));
+       mfn = __gpfn_to_mfn(d, (entry_get_paddr(gle) >> PAGE_SHIFT));
+        if (mfn == -1)
+            return 1;
         lva = (pgentry_64_t *) phys_to_virt(
            mfn << PAGE_SHIFT);

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