Re: [Qemu-devel] [PATCH for-2.6] target-i386: KVM loves Hyper-V!

["Denis V. Lunev" <den@openvz.org>]

On 04/01/2016 11:18 AM, Paolo Bonzini wrote:
> Microsoft loves Linux, and Red Hat loves .NET.  Since we can put whatever
> we want in the Hyper-V vendor signature, let's show some love too!
>
> Cc: Andreas Färber <afaerber@suse.de>
> Cc: Alex Williamson <alex.williamson@redhat.com>
> Cc: Denis V. Lunev <den@openvz.org>
> Cc: Eduardo Habkost <ehabkost@redhat.com>
> Cc: Roman Kagan <rkagan@virtuozzo.com>
> Cc: KY Srinivasan <kys@microsoft.com>
> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
> ---
>   target-i386/kvm.c | 2 +-
>   1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/target-i386/kvm.c b/target-i386/kvm.c
> index 799fdfa..1968f04 100644
> --- a/target-i386/kvm.c
> +++ b/target-i386/kvm.c
> @@ -592,7 +592,7 @@ int kvm_arch_init_vcpu(CPUState *cs)
>           c = &cpuid_data.entries[cpuid_i++];
>           c->function = HYPERV_CPUID_VENDOR_AND_MAX_FUNCTIONS;
>           if (!cpu->hyperv_vendor_id) {
> -            memcpy(signature, "Microsoft Hv", 12);
> +            memcpy(signature, "KVM<3HyperV!", 12);
>           } else {
>               size_t len = strlen(cpu->hyperv_vendor_id);
>   
potentially this could be dangerous. This could break
hypervisor detection code. I'll check this today and
reply.

But you have made my day. Thank you for April 1.