From patchwork Fri Dec 21 14:03:21 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Vitaly Kuznetsov X-Patchwork-Id: 10740489 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 3BD9B1399 for ; Fri, 21 Dec 2018 14:04:41 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 20B64287BF for ; Fri, 21 Dec 2018 14:04:41 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 14C47287C8; Fri, 21 Dec 2018 14:04:41 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-7.9 required=2.0 tests=BAYES_00,MAILING_LIST_MULTI, RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from lists.gnu.org (lists.gnu.org [208.118.235.17]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id A1682287BF for ; Fri, 21 Dec 2018 14:04:40 +0000 (UTC) Received: from localhost ([::1]:45908 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1gaLPr-0002yk-16 for patchwork-qemu-devel@patchwork.kernel.org; Fri, 21 Dec 2018 09:04:39 -0500 Received: from eggs.gnu.org ([2001:4830:134:3::10]:42303) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1gaLOn-0002SC-7Q for qemu-devel@nongnu.org; Fri, 21 Dec 2018 09:03:33 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1gaLOj-0007ma-7Y for qemu-devel@nongnu.org; Fri, 21 Dec 2018 09:03:33 -0500 Received: from mx1.redhat.com ([209.132.183.28]:42216) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1gaLOj-0007l3-1G for qemu-devel@nongnu.org; Fri, 21 Dec 2018 09:03:29 -0500 Received: from smtp.corp.redhat.com (int-mx08.intmail.prod.int.phx2.redhat.com [10.5.11.23]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id 3C2533DBD2; Fri, 21 Dec 2018 14:03:26 +0000 (UTC) Received: from vitty.brq.redhat.com (unknown [10.43.2.155]) by smtp.corp.redhat.com (Postfix) with ESMTP id A8D8F2C25C; Fri, 21 Dec 2018 14:03:22 +0000 (UTC) From: Vitaly Kuznetsov To: qemu-devel@nongnu.org Date: Fri, 21 Dec 2018 15:03:21 +0100 Message-Id: <20181221140321.7750-1-vkuznets@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.84 on 10.5.11.23 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.30]); Fri, 21 Dec 2018 14:03:26 +0000 (UTC) X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] [fuzzy] X-Received-From: 209.132.183.28 Subject: [Qemu-devel] [PATCH RFC] i386: Enable NPT and NRIPSAVE for Epyc CPUs X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Paolo Bonzini , Marcelo Tosatti , =?utf-8?b?UmFkaW0gS3LEjW3DocWZ?= , Eduardo Habkost , Richard Henderson Errors-To: qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Sender: "Qemu-devel" X-Virus-Scanned: ClamAV using ClamSMTP Epyc CPUs support NPT and NRIPSAVE features and KVM exposes these when present. Add them to EPYC and EPYC-IBPB cpu models. Signed-off-by: Vitaly Kuznetsov --- - RFC part: I'm not sure when these features first appeared, we may want to modify some Opteron_* models too. --- target/i386/cpu.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/target/i386/cpu.c b/target/i386/cpu.c index 677a3bd5fb..0a10fbeccc 100644 --- a/target/i386/cpu.c +++ b/target/i386/cpu.c @@ -2843,6 +2843,8 @@ static X86CPUDefinition builtin_x86_defs[] = { CPUID_XSAVE_XGETBV1, .features[FEAT_6_EAX] = CPUID_6_EAX_ARAT, + .features[FEAT_SVM] = + CPUID_SVM_NPT | CPUID_SVM_NRIPSAVE, .xlevel = 0x8000001E, .model_id = "AMD EPYC Processor", .cache_info = &epyc_cache_info, @@ -2891,6 +2893,8 @@ static X86CPUDefinition builtin_x86_defs[] = { CPUID_XSAVE_XGETBV1, .features[FEAT_6_EAX] = CPUID_6_EAX_ARAT, + .features[FEAT_SVM] = + CPUID_SVM_NPT | CPUID_SVM_NRIPSAVE, .xlevel = 0x8000001E, .model_id = "AMD EPYC Processor (with IBPB)", .cache_info = &epyc_cache_info,