From mboxrd@z Thu Jan 1 00:00:00 1970 From: Don Slutz Subject: [PATCH v3 03/17] target-i386: Add Hypervisor level. Date: Mon, 17 Sep 2012 10:00:53 -0400 Message-ID: <1347890467-9728-4-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]:16719 "EHLO hub021-nj-8.exch021.serverdata.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755501Ab2IQOBc (ORCPT ); Mon, 17 Sep 2012 10:01:32 -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 or maximim cpuid function present in this leaf. This is just the EAX value for 0x40000000. QEMU knows this is KVM_CPUID_SIGNATURE (0x40000000). This 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 has the value HYPERV_CPUID_MIN defined. Signed-off-by: Don Slutz --- target-i386/cpu.h | 2 ++ 1 files changed, 2 insertions(+), 0 deletions(-) diff --git a/target-i386/cpu.h b/target-i386/cpu.h index 5265c5a..05c0848 100644 --- a/target-i386/cpu.h +++ b/target-i386/cpu.h @@ -782,6 +782,8 @@ typedef struct CPUX86State { uint32_t cpuid_ext4_features; /* Flags from CPUID[EAX=7,ECX=0].EBX */ uint32_t cpuid_7_0_ebx; + /* Hypervisor CPUIDs */ + uint32_t cpuid_hv_level; /* MTRRs */ uint64_t mtrr_fixed[11]; -- 1.7.1