From patchwork Mon Sep 24 14:32:12 2012 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Don Slutz X-Patchwork-Id: 186477 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Received: from lists.gnu.org (lists.gnu.org [208.118.235.17]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (Client did not present a certificate) by ozlabs.org (Postfix) with ESMTPS id 445552C0081 for ; Tue, 25 Sep 2012 01:53:58 +1000 (EST) Received: from localhost ([::1]:44698 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1TG9jb-0007wD-6U for incoming@patchwork.ozlabs.org; Mon, 24 Sep 2012 10:34:07 -0400 Received: from eggs.gnu.org ([208.118.235.92]:58557) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1TG9ih-0006LK-3Q for qemu-devel@nongnu.org; Mon, 24 Sep 2012 10:33:18 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1TG9iX-0000sH-E8 for qemu-devel@nongnu.org; Mon, 24 Sep 2012 10:33:11 -0400 Received: from hub021-nj-6.exch021.serverdata.net ([206.225.164.222]:3875) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1TG9iX-0000s7-AG for qemu-devel@nongnu.org; Mon, 24 Sep 2012 10:33:01 -0400 Received: from localhost.localdomain (131.239.15.22) by east.exch021.serverdata.net (10.240.4.93) with Microsoft SMTP Server (TLS) id 14.2.309.2; Mon, 24 Sep 2012 07:33:02 -0700 From: Don Slutz To: , , , , , , , , Date: Mon, 24 Sep 2012 10:32:12 -0400 Message-ID: <1348497138-2516-11-git-send-email-Don@CloudSwitch.com> X-Mailer: git-send-email 1.7.1 In-Reply-To: <1348497138-2516-1-git-send-email-Don@CloudSwitch.com> References: <1348497138-2516-1-git-send-email-Don@CloudSwitch.com> MIME-Version: 1.0 X-detected-operating-system: by eggs.gnu.org: Windows 2000 SP2+, XP SP1+ (seldom 98) X-Received-From: 206.225.164.222 Cc: Don Slutz Subject: [Qemu-devel] [PATCH v6 10/16] target-i386: Use Hypervisor vendor in -machine pc, accel=tcg. X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org 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 --- target-i386/cpu.c | 8 ++++---- 1 files changed, 4 insertions(+), 4 deletions(-) diff --git a/target-i386/cpu.c b/target-i386/cpu.c index 964877f..a929b64 100644 --- a/target-i386/cpu.c +++ b/target-i386/cpu.c @@ -1695,7 +1695,7 @@ void cpu_x86_cpuid(CPUX86State *env, uint32_t index, uint32_t count, } } } else if (index & 0x40000000) { - if (env->cpuid_hv_level_set) { + if (env->cpuid_hv_level_set || env->cpuid_hv_vendor_set) { uint32_t real_level = env->cpuid_hv_level; /* Handle Hypervisor CPUIDs */ @@ -1849,9 +1849,9 @@ 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;