From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-13.6 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 0CA01C2D0E4 for ; Thu, 19 Nov 2020 10:33:59 +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 6E9B822202 for ; Thu, 19 Nov 2020 10:33:58 +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="A6TlGmXM" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 6E9B822202 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+qemu-devel=archiver.kernel.org@nongnu.org Received: from localhost ([::1]:36670 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1kfhGG-0002MP-SA for qemu-devel@archiver.kernel.org; Thu, 19 Nov 2020 05:33:56 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]:50940) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kfhEt-0000rJ-Go for qemu-devel@nongnu.org; Thu, 19 Nov 2020 05:32:31 -0500 Received: from us-smtp-delivery-124.mimecast.com ([63.128.21.124]:36316) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_CBC_SHA1:256) (Exim 4.90_1) (envelope-from ) id 1kfhEr-0007XD-6s for qemu-devel@nongnu.org; Thu, 19 Nov 2020 05:32:31 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1605781948; 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=67+5A7Lw/CKiVeQEGb5PuiunFj9yz7T8LGeU84HjuIk=; b=A6TlGmXMZWZ3XTiQwOh1vV8pBhV1QJwPLWK3wnjGs5hIyHLlg/4aHFvnaD66W0qFcZsZxM VQ4kjnSRfGQ84kQvX8CADvf/H99unP4ttQmP+nWeI3tKY9DQFOa57f0s8GD8MFLH0tkeO4 RPgLNsfc0ncW+1VsLOHqEEPIGY0/Y48= 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-108-H-pt5ftIPV2Gwl-RbwCcqA-1; Thu, 19 Nov 2020 05:32:26 -0500 X-MC-Unique: H-pt5ftIPV2Gwl-RbwCcqA-1 Received: from smtp.corp.redhat.com (int-mx03.intmail.prod.int.phx2.redhat.com [10.5.11.13]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id A71FF18957E9 for ; Thu, 19 Nov 2020 10:32:25 +0000 (UTC) Received: from vitty.brq.redhat.com (unknown [10.40.193.186]) by smtp.corp.redhat.com (Postfix) with ESMTP id 52D8360854; Thu, 19 Nov 2020 10:32:24 +0000 (UTC) From: Vitaly Kuznetsov To: qemu-devel@nongnu.org Subject: [PATCH 1/5] i386: move hyperv_vendor_id initialization to x86_cpu_realizefn() Date: Thu, 19 Nov 2020 11:32:17 +0100 Message-Id: <20201119103221.1665171-2-vkuznets@redhat.com> In-Reply-To: <20201119103221.1665171-1-vkuznets@redhat.com> References: <20201119103221.1665171-1-vkuznets@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.13 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=vkuznets@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Transfer-Encoding: 8bit Content-Type: text/plain; charset="US-ASCII" 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 = 2020/11/18 23:36:20 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_H4=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+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" As a preparation to expanding Hyper-V CPU features early, move hyperv_vendor_id initialization to x86_cpu_realizefn(). Introduce x86_cpu_hyperv_realize() to not not pollute x86_cpu_realizefn() itself. Signed-off-by: Vitaly Kuznetsov --- target/i386/cpu.c | 23 ++++++++++++++++++++++- target/i386/cpu.h | 3 ++- target/i386/kvm.c | 25 ++++++++++--------------- 3 files changed, 34 insertions(+), 17 deletions(-) diff --git a/target/i386/cpu.c b/target/i386/cpu.c index 5a8c96072e41..2a6885753378 100644 --- a/target/i386/cpu.c +++ b/target/i386/cpu.c @@ -6509,6 +6509,25 @@ static void x86_cpu_filter_features(X86CPU *cpu, bool verbose) } } +static void x86_cpu_hyperv_realize(X86CPU *cpu) +{ + size_t len; + + /* Hyper-V vendor id */ + if (!cpu->hyperv_vendor) { + memcpy(cpu->hyperv_vendor_id, "Microsoft Hv", 12); + } else { + len = strlen(cpu->hyperv_vendor); + + if (len > 12) { + warn_report("hv-vendor-id truncated to 12 characters"); + len = 12; + } + memset(cpu->hyperv_vendor_id, 0, 12); + memcpy(cpu->hyperv_vendor_id, cpu->hyperv_vendor, len); + } +} + static void x86_cpu_realizefn(DeviceState *dev, Error **errp) { CPUState *cs = CPU(dev); @@ -6680,6 +6699,8 @@ static void x86_cpu_realizefn(DeviceState *dev, Error **errp) env->cache_info_amd.l3_cache = &legacy_l3_cache; } + /* Process Hyper-V enlightenments */ + x86_cpu_hyperv_realize(cpu); cpu_exec_realizefn(cs, &local_err); if (local_err != NULL) { @@ -7198,7 +7219,7 @@ static Property x86_cpu_properties[] = { DEFINE_PROP_UINT32("min-xlevel2", X86CPU, env.cpuid_min_xlevel2, 0), DEFINE_PROP_UINT64("ucode-rev", X86CPU, ucode_rev, 0), DEFINE_PROP_BOOL("full-cpuid-auto-level", X86CPU, full_cpuid_auto_level, true), - DEFINE_PROP_STRING("hv-vendor-id", X86CPU, hyperv_vendor_id), + DEFINE_PROP_STRING("hv-vendor-id", X86CPU, hyperv_vendor), DEFINE_PROP_BOOL("cpuid-0xb", X86CPU, enable_cpuid_0xb, true), DEFINE_PROP_BOOL("lmce", X86CPU, enable_lmce, false), DEFINE_PROP_BOOL("l3-cache", X86CPU, enable_l3_cache, true), diff --git a/target/i386/cpu.h b/target/i386/cpu.h index 88e8586f8fb4..be640bf45c29 100644 --- a/target/i386/cpu.h +++ b/target/i386/cpu.h @@ -1655,11 +1655,12 @@ struct X86CPU { uint64_t ucode_rev; uint32_t hyperv_spinlock_attempts; - char *hyperv_vendor_id; + char *hyperv_vendor; bool hyperv_synic_kvm_only; uint64_t hyperv_features; bool hyperv_passthrough; OnOffAuto hyperv_no_nonarch_cs; + uint32_t hyperv_vendor_id[3]; bool check_cpuid; bool enforce_cpuid; diff --git a/target/i386/kvm.c b/target/i386/kvm.c index a2934dda027c..788a2cf2ec51 100644 --- a/target/i386/kvm.c +++ b/target/i386/kvm.c @@ -1205,6 +1205,13 @@ static int hyperv_handle_properties(CPUState *cs, memcpy(cpuid_ent, &cpuid->entries[0], cpuid->nent * sizeof(cpuid->entries[0])); + c = cpuid_find_entry(cpuid, HV_CPUID_VENDOR_AND_MAX_FUNCTIONS, 0); + if (c) { + cpu->hyperv_vendor_id[0] = c->ebx; + cpu->hyperv_vendor_id[1] = c->ecx; + cpu->hyperv_vendor_id[2] = c->edx; + } + c = cpuid_find_entry(cpuid, HV_CPUID_FEATURES, 0); if (c) { env->features[FEAT_HYPERV_EAX] = c->eax; @@ -1279,23 +1286,11 @@ static int hyperv_handle_properties(CPUState *cs, c = &cpuid_ent[cpuid_i++]; c->function = HV_CPUID_VENDOR_AND_MAX_FUNCTIONS; - if (!cpu->hyperv_vendor_id) { - memcpy(signature, "Microsoft Hv", 12); - } else { - size_t len = strlen(cpu->hyperv_vendor_id); - - if (len > 12) { - error_report("hv-vendor-id truncated to 12 characters"); - len = 12; - } - memset(signature, 0, 12); - memcpy(signature, cpu->hyperv_vendor_id, len); - } c->eax = hyperv_feat_enabled(cpu, HYPERV_FEAT_EVMCS) ? HV_CPUID_NESTED_FEATURES : HV_CPUID_IMPLEMENT_LIMITS; - c->ebx = signature[0]; - c->ecx = signature[1]; - c->edx = signature[2]; + c->ebx = cpu->hyperv_vendor_id[0]; + c->ecx = cpu->hyperv_vendor_id[1]; + c->edx = cpu->hyperv_vendor_id[2]; c = &cpuid_ent[cpuid_i++]; c->function = HV_CPUID_INTERFACE; -- 2.26.2