Part of "target-i386: Add way to expose VMWare CPUID"
At this stage it is used to set the cpu object's hypervisor features
to the default for Microsoft's Hypervisor ("Hv#1").
Also known as kvm festures or Hypervisor vendor-neutral interface
identification.
This is the EAX value for 0x40000001.
QEMU knows this is KVM_CPUID_FEATURES (0x40000001) in some builds.
This is based on:
Microsoft Hypervisor CPUID Leaves:
http://msdn.microsoft.com/en-us/library/windows/hardware/ff542428%28v=vs.85%29.aspx
Signed-off-by: Don Slutz <[email protected]>
---
target-i386/cpu.c | 2 ++
target-i386/cpu.h | 1 +
2 files changed, 3 insertions(+), 0 deletions(-)
diff --git a/target-i386/cpu.c b/target-i386/cpu.c
index 958be81..f058add 100644
--- a/target-i386/cpu.c
+++ b/target-i386/cpu.c
@@ -1259,6 +1259,8 @@ static void x86_set_hyperv(Object *obj, Error **errp)
"hypervisor-level", errp);
object_property_set_str(obj, CPUID_HV_VENDOR_HYPERV,
"hypervisor-vendor", errp);
+ object_property_set_int(obj, CPUID_HV_FEATURES_HYPERV,
+ "hypervisor-features", errp);
}
static void x86_get_hv_spinlocks(Object *obj, Visitor *v, void *opaque,
diff --git a/target-i386/cpu.h b/target-i386/cpu.h
index f2045d6..9a34c7b 100644
--- a/target-i386/cpu.h
+++ b/target-i386/cpu.h
@@ -492,6 +492,7 @@
* Microsoft hypervisors. Is related to HYPERV_CPUID_MIN. */
#define CPUID_HV_LEVEL_HYPERV_CPUID_MIN 0x40000005
#define CPUID_HV_VENDOR_HYPERV "Microsoft Hv"
+#define CPUID_HV_FEATURES_HYPERV 0x31237648 /* "Hv#1" */
#define CPUID_MWAIT_IBE (1 << 1) /* Interrupts can exit capability */
#define CPUID_MWAIT_EMX (1 << 0) /* enumeration supported */
--
1.7.1
--
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