Displaying 1 result from an estimated 1 matches for "hvm_pcid_en".
2011 Nov 24
0
[PATCH 6/6] X86: implement PCID/INVPCID for hvm
...vm/hvm.c
--- a/xen/arch/x86/hvm/hvm.c Tue Nov 22 02:47:51 2011 +0800
+++ b/xen/arch/x86/hvm/hvm.c Tue Nov 22 16:15:19 2011 +0800
@@ -1549,6 +1549,13 @@ int hvm_set_cr0(unsigned long value)
}
else if ( !(value & X86_CR0_PG) && (old_value & X86_CR0_PG) )
{
+ if ( hvm_pcid_enabled(v) )
+ {
+ HVM_DBG_LOG(DBG_LEVEL_1, "Guest attempts to clear CR0.PG "
+ "while CR4.PCIDE=1");
+ goto gpf;
+ }
+
/* When CR0.PG is cleared, LMA is cleared immediately. */
if ( hvm_long_mode_enabled(...