Part of "target-i386: Add way to expose VMWare CPUID" Also known as Paravirtualization vendor. This change is based on: Microsoft Hypervisor CPUID Leaves: http://msdn.microsoft.com/en-us/library/windows/hardware/ff542428%28v=vs.85%29.aspx Linux kernel change starts with: http://fixunix.com/kernel/538707-use-cpuid-communicate-hypervisor.html Also: http://lkml.indiana.edu/hypermail/linux/kernel/1205.0/00100.html This is where the 0 is the same as 0x40000001 is defined. VMware documention on CPUIDs (Mechanisms to determine if software is running in a VMware virtual machine): http://kb.vmware.com/selfservice/microsites/search.do?language=en_US&cmd=displayKC&externalId=1009458 Signed-off-by: Don Slutz <Don@xxxxxxxxxxxxxxx> --- target-i386/cpu.c | 11 ++++++----- 1 files changed, 6 insertions(+), 5 deletions(-) diff --git a/target-i386/cpu.c b/target-i386/cpu.c index 5b33b95..49e5db3 100644 --- a/target-i386/cpu.c +++ b/target-i386/cpu.c @@ -1769,8 +1769,9 @@ void cpu_x86_cpuid(CPUX86State *env, uint32_t index, uint32_t count, } } else if (index & 0x40000000) { /* test if maximum index reached - * but only if Hypervisor level is set */ - if (env->cpuid_hv_level_set) { + * but only if Hypervisor level is set or + * if Hypervisor vendor is set */ + if (env->cpuid_hv_level_set || env->cpuid_hv_vendor_set) { uint32_t real_level = env->cpuid_hv_level; /* Handle Hypervisor CPUIDs. @@ -1925,9 +1926,9 @@ void cpu_x86_cpuid(CPUX86State *env, uint32_t index, uint32_t count, break; case 0x40000000: *eax = env->cpuid_hv_level; - *ebx = 0; - *ecx = 0; - *edx = 0; + *ebx = env->cpuid_hv_vendor1; + *ecx = env->cpuid_hv_vendor2; + *edx = env->cpuid_hv_vendor3; break; case 0x40000001: *eax = env->cpuid_kvm_features; -- 1.7.1 -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
