Hi,
MSR index is 32bit not 64bit. All other MSR indexes are defined
without the ULL suffix. Otherwise, you will get
[EMAIL PROTECTED] tmp]$ cat foo.c
typedef unsigned long long u64;
int is_disabled(void)
{
u64 vm_cr;
do { unsigned long l__,h__; __asm__ __volatile__("rdmsr" : "=a" (l__),
"=d" (h__) : "c" (0xc0010114ULL)); vm_cr = l__; vm_cr |=
((u64)h__<<32); } while(0);
if (vm_cr & (1 << 4))
return 1;
return 0;
}
[EMAIL PROTECTED] tmp]$ gcc -m32 -S foo.c
foo.c: In function â_disabledâfoo.c:7: error: impossible register
constraint in âmâoo.c:12: confused by earlier errors, bailing out
[EMAIL PROTECTED] tmp]$
on 32bit. This patch removes the ULL suffix in SVM MSR indexes.
H.J.
--- linux-2.6.21.i686/drivers/kvm/svm.h.msr 2007-06-28 22:42:12.000000000
-0700
+++ linux-2.6.21.i686/drivers/kvm/svm.h 2007-06-29 08:03:09.000000000 -0700
@@ -175,8 +175,8 @@ struct __attribute__ ((__packed__)) vmcb
#define SVM_CPUID_FUNC 0x8000000a
#define MSR_EFER_SVME_MASK (1ULL << 12)
-#define MSR_VM_CR 0xc0010114ULL
-#define MSR_VM_HSAVE_PA 0xc0010117ULL
+#define MSR_VM_CR 0xc0010114
+#define MSR_VM_HSAVE_PA 0xc0010117
#define SVM_VM_CR_SVM_DISABLE 4
-
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