From patchwork Fri Sep 4 14:54:20 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Vitaly Kuznetsov X-Patchwork-Id: 11757679 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 76F80138E for ; Fri, 4 Sep 2020 14:59:45 +0000 (UTC) Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 4AA922073B for ; Fri, 4 Sep 2020 14:59:45 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="dpbD0Lid" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 4AA922073B Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=redhat.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Received: from localhost ([::1]:54190 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1kEDBo-0000Ft-GU for patchwork-qemu-devel@patchwork.kernel.org; Fri, 04 Sep 2020 10:59:44 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:41254) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kED8G-0000r9-FW for qemu-devel@nongnu.org; Fri, 04 Sep 2020 10:56:04 -0400 Received: from us-smtp-delivery-124.mimecast.com ([63.128.21.124]:52076) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_CBC_SHA1:256) (Exim 4.90_1) (envelope-from ) id 1kED8E-0007Dz-CI for qemu-devel@nongnu.org; Fri, 04 Sep 2020 10:56:04 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1599231361; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=EJaA8+NmorZsbhCkvkIm/fNDPNgoVlNN4owknRbS5ag=; b=dpbD0LidMfA/UAU6VeIJzftvO5ov37qDg6NFhJl5AUi1ke7wesIaoVZW56WoBkOe70OJdX y5cE/fEQcKDXEdrzKltMI2EOqz1Y17yPwZOHrd0jeT0clyW4JtOWkfrpBVZSmByexfGRmL bTcVuELJnt1xAokr+ZIu6F5ks+G+1b0= Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-333-287JcF02NjCQqC9zHO-A0g-1; Fri, 04 Sep 2020 10:54:55 -0400 X-MC-Unique: 287JcF02NjCQqC9zHO-A0g-1 Received: from smtp.corp.redhat.com (int-mx01.intmail.prod.int.phx2.redhat.com [10.5.11.11]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 4C4CD1017DC0 for ; Fri, 4 Sep 2020 14:54:54 +0000 (UTC) Received: from vitty.brq.redhat.com (unknown [10.40.194.104]) by smtp.corp.redhat.com (Postfix) with ESMTP id B45157A1F4; Fri, 4 Sep 2020 14:54:52 +0000 (UTC) From: Vitaly Kuznetsov To: qemu-devel@nongnu.org Subject: [PATCH RFC 11/22] i386: add reserved FEAT_HV_NESTED_EBX/ECX/EDX CPUID leaves Date: Fri, 4 Sep 2020 16:54:20 +0200 Message-Id: <20200904145431.196885-12-vkuznets@redhat.com> In-Reply-To: <20200904145431.196885-1-vkuznets@redhat.com> References: <20200904145431.196885-1-vkuznets@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.11 X-Mimecast-Spam-Score: 0.001 X-Mimecast-Originator: redhat.com Received-SPF: pass client-ip=63.128.21.124; envelope-from=vkuznets@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-detected-operating-system: by eggs.gnu.org: First seen = 2020/09/04 06:46:59 X-ACL-Warn: Detected OS = Linux 2.2.x-3.x [generic] [fuzzy] X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.001, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H5=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Paolo Bonzini , Marcelo Tosatti , Eduardo Habkost Errors-To: qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Sender: "Qemu-devel" As a preparation to expanding Hyper-V CPU features early, add reserved FEAT_HV_NESTED_EBX/ECX/EDX CPUID leaves. Signed-off-by: Vitaly Kuznetsov --- target/i386/cpu.c | 15 +++++++++++++++ target/i386/cpu.h | 3 +++ target/i386/kvm.c | 6 ++++++ 3 files changed, 24 insertions(+) diff --git a/target/i386/cpu.c b/target/i386/cpu.c index 3665f22093e9..479c4bbbf459 100644 --- a/target/i386/cpu.c +++ b/target/i386/cpu.c @@ -1035,6 +1035,21 @@ static FeatureWordInfo feature_word_info[FEATURE_WORDS] = { .type = CPUID_FEATURE_WORD, .cpuid = { .eax = 0x4000000A, .reg = R_EAX, }, }, + [FEAT_HV_NESTED_EBX] = { + .type = CPUID_FEATURE_WORD, + /* reserved */ + .cpuid = { .eax = 0x4000000A, .reg = R_EBX, }, + }, + [FEAT_HV_NESTED_ECX] = { + .type = CPUID_FEATURE_WORD, + /* reserved */ + .cpuid = { .eax = 0x4000000A, .reg = R_ECX, }, + }, + [FEAT_HV_NESTED_EDX] = { + .type = CPUID_FEATURE_WORD, + /* reserved */ + .cpuid = { .eax = 0x4000000A, .reg = R_EDX, }, + }, [FEAT_SVM] = { .type = CPUID_FEATURE_WORD, .feat_names = { diff --git a/target/i386/cpu.h b/target/i386/cpu.h index 0668fe74df4f..0aad60e0c707 100644 --- a/target/i386/cpu.h +++ b/target/i386/cpu.h @@ -527,6 +527,9 @@ typedef enum FeatureWord { FEAT_HV_RECOMM_ECX, /* CPUID[4000_0004].ECX */ FEAT_HV_RECOMM_EDX, /* CPUID[4000_0004].EDX */ FEAT_HV_NESTED_EAX, /* CPUID[4000_000A].EAX */ + FEAT_HV_NESTED_EBX, /* CPUID[4000_000A].EBX */ + FEAT_HV_NESTED_ECX, /* CPUID[4000_000A].ECX */ + FEAT_HV_NESTED_EDX, /* CPUID[4000_000A].EDX */ FEAT_SVM, /* CPUID[8000_000A].EDX */ FEAT_XSAVE, /* CPUID[EAX=0xd,ECX=1].EAX */ FEAT_6_EAX, /* CPUID[6].EAX */ diff --git a/target/i386/kvm.c b/target/i386/kvm.c index c18f221cd301..87b83a2aa2cb 100644 --- a/target/i386/kvm.c +++ b/target/i386/kvm.c @@ -1274,6 +1274,9 @@ static int hyperv_handle_properties(CPUState *cs, c = cpuid_find_entry(cpuid, HV_CPUID_NESTED_FEATURES, 0); if (c) { env->features[FEAT_HV_NESTED_EAX] = c->eax; + env->features[FEAT_HV_NESTED_EBX] = c->ebx; + env->features[FEAT_HV_NESTED_ECX] = c->ecx; + env->features[FEAT_HV_NESTED_EDX] = c->edx; } } @@ -1384,6 +1387,9 @@ static int hyperv_handle_properties(CPUState *cs, c = &cpuid_ent[cpuid_i++]; c->function = HV_CPUID_NESTED_FEATURES; c->eax = env->features[FEAT_HV_NESTED_EAX]; + c->ebx = env->features[FEAT_HV_NESTED_EBX]; + c->ecx = env->features[FEAT_HV_NESTED_ECX]; + c->edx = env->features[FEAT_HV_NESTED_EDX]; } r = cpuid_i;