From mboxrd@z Thu Jan 1 00:00:00 1970 From: Don Slutz Subject: [PATCH v3 06/17] target-i386: Use Hypervisor level in -machine pc,accel=kvm. Date: Mon, 17 Sep 2012 10:00:56 -0400 Message-ID: <1347890467-9728-7-git-send-email-Don@CloudSwitch.com> References: <1346354435-21685-1-git-send-email-Don@CloudSwitch.com> Mime-Version: 1.0 Content-Type: text/plain Cc: Don Slutz To: , , , , , , , , Return-path: Received: from hub021-nj-8.exch021.serverdata.net ([206.225.164.233]:23797 "EHLO hub021-nj-8.exch021.serverdata.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755501Ab2IQOBo (ORCPT ); Mon, 17 Sep 2012 10:01:44 -0400 In-Reply-To: <1346354435-21685-1-git-send-email-Don@CloudSwitch.com> Sender: kvm-owner@vger.kernel.org List-ID: Also known as Paravirtualization level. 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 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 QEMU knows this is KVM_CPUID_SIGNATURE (0x40000000). Signed-off-by: Don Slutz --- target-i386/kvm.c | 4 ++-- 1 files changed, 2 insertions(+), 2 deletions(-) diff --git a/target-i386/kvm.c b/target-i386/kvm.c index 895d848..bf27793 100644 --- a/target-i386/kvm.c +++ b/target-i386/kvm.c @@ -389,12 +389,12 @@ int kvm_arch_init_vcpu(CPUX86State *env) c = &cpuid_data.entries[cpuid_i++]; memset(c, 0, sizeof(*c)); c->function = KVM_CPUID_SIGNATURE; - if (!hyperv_enabled()) { + if (env->cpuid_hv_level == 0) { memcpy(signature, "KVMKVMKVM\0\0\0", 12); c->eax = 0; } else { memcpy(signature, "Microsoft Hv", 12); - c->eax = HYPERV_CPUID_MIN; + c->eax = env->cpuid_hv_level; } c->ebx = signature[0]; c->ecx = signature[1]; -- 1.7.1