[Xen-changelog] Use entry_get_paddr(l1e) to get the PFN

[Xen patchbot -unstable <patchbot-unstable@xxxxxxxxxxxxxxxxxxx>]

# HG changeset patch
# User kaf24@xxxxxxxxxxxxxxxxxxxx
# Node ID 832cb25d1f554b5d8d173bb6647e6a109a47173b
# Parent  b99098e3c2ed38c897242cb505fb1e171bb9435b
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>

diff -r b99098e3c2ed -r 832cb25d1f55 xen/include/asm-x86/shadow_64.h
--- a/xen/include/asm-x86/shadow_64.h   Thu Sep  1 09:04:06 2005
+++ b/xen/include/asm-x86/shadow_64.h   Thu Sep  1 09:07:10 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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