From patchwork Thu Jun 17 07:18:14 2010 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sheng Yang X-Patchwork-Id: 55977 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Received: from lists.gnu.org (lists.gnu.org [199.232.76.165]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client did not present a certificate) by ozlabs.org (Postfix) with ESMTPS id EB6AFB7D43 for ; Thu, 17 Jun 2010 17:19:47 +1000 (EST) Received: from localhost ([127.0.0.1]:38559 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1OP9O4-0002o7-Gx for incoming@patchwork.ozlabs.org; Thu, 17 Jun 2010 03:19:44 -0400 Received: from [140.186.70.92] (port=48621 helo=eggs.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1OP9MX-0002km-Ik for qemu-devel@nongnu.org; Thu, 17 Jun 2010 03:18:10 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.69) (envelope-from ) id 1OP9MV-0003qp-QA for qemu-devel@nongnu.org; Thu, 17 Jun 2010 03:18:09 -0400 Received: from mga09.intel.com ([134.134.136.24]:17615) by eggs.gnu.org with esmtp (Exim 4.69) (envelope-from ) id 1OP9MV-0003q8-FG for qemu-devel@nongnu.org; Thu, 17 Jun 2010 03:18:07 -0400 Received: from orsmga002.jf.intel.com ([10.7.209.21]) by orsmga102.jf.intel.com with ESMTP; 17 Jun 2010 00:18:00 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="4.53,430,1272870000"; d="scan'208";a="527705336" Received: from syang10-desktop.sh.intel.com (HELO syang10-desktop) ([10.239.36.189]) by orsmga002.jf.intel.com with ESMTP; 17 Jun 2010 00:18:01 -0700 Received: from yasker by syang10-desktop with local (Exim 4.71) (envelope-from ) id 1OP9Mg-0007Zy-CE; Thu, 17 Jun 2010 15:18:18 +0800 From: Sheng Yang To: Marcelo Tosatti , Avi Kivity Date: Thu, 17 Jun 2010 15:18:14 +0800 Message-Id: <1276759096-29104-3-git-send-email-sheng@linux.intel.com> X-Mailer: git-send-email 1.7.0.4 In-Reply-To: <1276759096-29104-1-git-send-email-sheng@linux.intel.com> References: <1276759096-29104-1-git-send-email-sheng@linux.intel.com> X-detected-operating-system: by eggs.gnu.org: Genre and OS details not recognized. Cc: Jan Kiszka , Sheng Yang , kvm@vger.kernel.org, qemu-devel@nongnu.org Subject: [Qemu-devel] [PATCH 2/4] qemu: Enable XSAVE related CPUID X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: qemu-devel.nongnu.org List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org We can support it in KVM now. The 0xd leaf is queried from KVM. Signed-off-by: Sheng Yang --- target-i386/cpuid.c | 21 +++++++++++++++++++++ 1 files changed, 21 insertions(+), 0 deletions(-) diff --git a/target-i386/cpuid.c b/target-i386/cpuid.c index 99d1f44..ab6536b 100644 --- a/target-i386/cpuid.c +++ b/target-i386/cpuid.c @@ -1067,6 +1067,27 @@ void cpu_x86_cpuid(CPUX86State *env, uint32_t index, uint32_t count, *ecx = 0; *edx = 0; break; + case 0xD: + /* Processor Extended State */ + if (!(env->cpuid_ext_features & CPUID_EXT_XSAVE)) { + *eax = 0; + *ebx = 0; + *ecx = 0; + *edx = 0; + break; + } + if (kvm_enabled()) { + *eax = kvm_arch_get_supported_cpuid(env, 0xd, count, R_EAX); + *ebx = kvm_arch_get_supported_cpuid(env, 0xd, count, R_EBX); + *ecx = kvm_arch_get_supported_cpuid(env, 0xd, count, R_ECX); + *edx = kvm_arch_get_supported_cpuid(env, 0xd, count, R_EDX); + } else { + *eax = 0; + *ebx = 0; + *ecx = 0; + *edx = 0; + } + break; case 0x80000000: *eax = env->cpuid_xlevel; *ebx = env->cpuid_vendor1;