[Qemu-devel] [PATCH v2 1/7] Don't report "Microsoft" as the vendor ID signature.

[Vadim Rozenfeld]

According to "Requirements for Implementing the Microsoft Hypervisor
Interface" (http://msdn.microsoft.com/library/windows/hardware/hh975392)
page 4, conformant hypervisors are not required to report the vendor id
signature. Guest use this information for reporting and diagnostic
purposes only.

Signed-off-by: Vadim Rozenfeld <address@hidden>
---
 target-i386/kvm.c | 7 ++-----
 1 file changed, 2 insertions(+), 5 deletions(-)

diff --git a/target-i386/kvm.c b/target-i386/kvm.c
index 7522e98..db1583a 100644
--- a/target-i386/kvm.c
+++ b/target-i386/kvm.c
@@ -463,11 +463,8 @@ int kvm_arch_init_vcpu(CPUState *cs)
     /* Paravirtualization CPUIDs */
     c = &cpuid_data.entries[cpuid_i++];
     c->function = KVM_CPUID_SIGNATURE;
-    if (!hyperv_enabled(cpu)) {
-        memcpy(signature, "KVMKVMKVM\0\0\0", 12);
-        c->eax = 0;
-    } else {
-        memcpy(signature, "Microsoft Hv", 12);
+    memcpy(signature, "KVMKVMKVM\0\0\0", 12);
+    if (hyperv_enabled(cpu)) {
         c->eax = HYPERV_CPUID_MIN;
     }
     c->ebx = signature[0];
-- 
1.8.1.4