[Xen-devel] [PATCH][VT] No DISALLOW pte bit check for VMX domain

["Li, Chengyuan" <chengyuan.li@xxxxxxxxx>]

Hi,

VMX domain don't need DISALLOW pte bit checking.

Signed-off-by: Chengyuan Li <chengyuan.li@xxxxxxxxx>     

diff -r 51fa7e0bd968 xen/arch/x86/mm.c
--- a/xen/arch/x86/mm.c Sat Sep 10 03:34:52 2005
+++ b/xen/arch/x86/mm.c Mon Sep 12 13:48:10 2005
@@ -442,7 +442,7 @@
     if ( !(l1e_get_flags(l1e) & _PAGE_PRESENT) )
         return 1;

-    if ( unlikely(l1e_get_flags(l1e) & L1_DISALLOW_MASK) )
+    if ( !shadow_mode_refcounts(d) && unlikely(l1e_get_flags(l1e) &
L1_DISALLOW_MASK) )
     {
         MEM_LOG("Bad L1 flags %x", l1e_get_flags(l1e) &
L1_DISALLOW_MASK);
         return 0;

Thanks,
Chengyuan


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