CPUID claims that extended monitor/mwait features are available but the
mwait helper instantly raises a GPF if they are used. Thus do not announce
that the extension are available.
Signed-off-by: Adam Lackorzynski <a...@os.inf.tu-dresden.de>
---
target-i386/cpuid.c | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/target-i386/cpuid.c b/target-i386/cpuid.c
index 5382a28..28275a6 100644
--- a/target-i386/cpuid.c
+++ b/target-i386/cpuid.c
@@ -1104,7 +1104,7 @@ void cpu_x86_cpuid(CPUX86State *env, uint32_t index,
uint32_t count,
/* mwait info: needed for Core compatibility */
*eax = 0; /* Smallest monitor-line size in bytes */
*ebx = 0; /* Largest monitor-line size in bytes */
- *ecx = CPUID_MWAIT_EMX | CPUID_MWAIT_IBE;
+ *ecx = 0; /* Supported extensions */
*edx = 0;
break;
case 6:
--
1.7.4.1
