From patchwork Sun Jun 18 21:51:10 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Paolo Bonzini X-Patchwork-Id: 1796278 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@legolas.ozlabs.org Authentication-Results: legolas.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=nongnu.org (client-ip=209.51.188.17; helo=lists.gnu.org; envelope-from=qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org; receiver=) Authentication-Results: legolas.ozlabs.org; dkim=pass (1024-bit key; unprotected) header.d=redhat.com header.i=@redhat.com header.a=rsa-sha256 header.s=mimecast20190719 header.b=A8MF29ts; dkim-atps=neutral Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-ECDSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by legolas.ozlabs.org (Postfix) with ESMTPS id 4QkmpG3pk1z20XZ for ; Mon, 19 Jun 2023 07:52:22 +1000 (AEST) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1qB0J0-0002ob-F3; Sun, 18 Jun 2023 17:51:30 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1qB0Iz-0002oQ-1z for qemu-devel@nongnu.org; Sun, 18 Jun 2023 17:51:29 -0400 Received: from us-smtp-delivery-124.mimecast.com ([170.10.129.124]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1qB0Ix-0006W0-Lg for qemu-devel@nongnu.org; Sun, 18 Jun 2023 17:51:28 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1687125087; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=oP1MubZhPu+IU33FcEr2ztQqoz4mfwTSrVTYTsYuNNs=; b=A8MF29tsrJ6M6CMVVTBGZWAhrN7FZKCd7N1LLchoDuvg9vPFPL7CFZStTVLqFoU/Iutxtw +fxcWwQOjqhF/jD3SvTqGWIdlXjJFiHzbjEzrdeeSxBBlDeT7CGn96b0Zbv3ImfiHfCPCA UgzFllhVUI7SJrVMMe15KdyWvbPCSA0= Received: from mail-ej1-f72.google.com (mail-ej1-f72.google.com [209.85.218.72]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-631-FhUMu_dyO8e5ehSL9sQWDA-1; Sun, 18 Jun 2023 17:51:25 -0400 X-MC-Unique: FhUMu_dyO8e5ehSL9sQWDA-1 Received: by mail-ej1-f72.google.com with SMTP id a640c23a62f3a-982180ac15cso221774266b.2 for ; Sun, 18 Jun 2023 14:51:25 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1687125084; x=1689717084; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=oP1MubZhPu+IU33FcEr2ztQqoz4mfwTSrVTYTsYuNNs=; b=iDCHfn5RCSWgIAbJ44UenFhWuiZlXBfNDqQySss6iH6SLYOiiCFeINHY9s5GrV+yea VFacV7Fzfm2KB0fH1lokQomnYbSzkIk5AxvJHXrDn8DhTRAGSba1Rwi2hnd13KNk9Na4 MRMcpGASn0M9WJh8v88hdyg16+txc9DgLEtYn5muURJt3bl9bs3PcUxZSaf6/mgqL2Y2 PSByo08EkuCz3jqdJMJimRAcX3kOx0Ppt4ZC4lZP/UQ+k1dfXEOVDh7gN+39BIygVoEG bS0jn85LOD+f5BWt9gnXrOA29yCUbjR5bgOrmApg9GEMS5vxAYsFs40GL3t64fqBL1HG 8EMw== X-Gm-Message-State: AC+VfDz4ZIA/i6QFXsrgkafVv9BIztxQiBoKKg+pbmcChWTmDfnIYze/ tEpq4T8ukRC51O1V4QHVYgpdR5ga/uAnKwMQ3yUtRyUgayeuESBC1JTHAlluPA/mWIvuvlhnvW8 tzHxT8ohi+r2Ee2t9fMVevg4g8Q6BOcD3728gbuUoMhxVFtG4aPBaRc06v4dDdEMTDu+q/S+npW XVmw== X-Received: by 2002:a17:906:4fd1:b0:97e:bfb5:9344 with SMTP id i17-20020a1709064fd100b0097ebfb59344mr8101420ejw.8.1687125084182; Sun, 18 Jun 2023 14:51:24 -0700 (PDT) X-Google-Smtp-Source: ACHHUZ58mReNFLcDeC9eAWSLPHTwHBBQqMVOlCUfOIejmHXhHcoYVMiV13lImxlsatBWNgpzsCmmjQ== X-Received: by 2002:a17:906:4fd1:b0:97e:bfb5:9344 with SMTP id i17-20020a1709064fd100b0097ebfb59344mr8101411ejw.8.1687125083935; Sun, 18 Jun 2023 14:51:23 -0700 (PDT) Received: from [192.168.60.219] (server.hotelpassage.eu. [88.146.207.194]) by smtp.gmail.com with ESMTPSA id gv19-20020a170906f11300b00988a0765e29sm692949ejb.104.2023.06.18.14.51.23 for (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 18 Jun 2023 14:51:23 -0700 (PDT) From: Paolo Bonzini To: qemu-devel@nongnu.org Subject: [PATCH 3/7] target/i386: TCG supports RDSEED Date: Sun, 18 Jun 2023 23:51:10 +0200 Message-Id: <20230618215114.107337-4-pbonzini@redhat.com> X-Mailer: git-send-email 2.40.1 In-Reply-To: <20230618215114.107337-1-pbonzini@redhat.com> References: <20230618215114.107337-1-pbonzini@redhat.com> MIME-Version: 1.0 Received-SPF: pass client-ip=170.10.129.124; envelope-from=pbonzini@redhat.com; helo=us-smtp-delivery-124.mimecast.com 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, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 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 TCG implements RDSEED, and in fact uses qcrypto_random_bytes which is secure enough to match hardware behavior. Expose it to guests. Signed-off-by: Paolo Bonzini --- target/i386/cpu.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) diff --git a/target/i386/cpu.c b/target/i386/cpu.c index ff3dcd02dcb..fc4246223d4 100644 --- a/target/i386/cpu.c +++ b/target/i386/cpu.c @@ -657,11 +657,10 @@ void x86_cpu_vendor_words2str(char *dst, uint32_t vendor1, CPUID_7_0_EBX_BMI1 | CPUID_7_0_EBX_BMI2 | CPUID_7_0_EBX_ADX | \ CPUID_7_0_EBX_PCOMMIT | CPUID_7_0_EBX_CLFLUSHOPT | \ CPUID_7_0_EBX_CLWB | CPUID_7_0_EBX_MPX | CPUID_7_0_EBX_FSGSBASE | \ - CPUID_7_0_EBX_ERMS | CPUID_7_0_EBX_AVX2) + CPUID_7_0_EBX_ERMS | CPUID_7_0_EBX_AVX2 | CPUID_7_0_EBX_RDSEED) /* missing: CPUID_7_0_EBX_HLE - CPUID_7_0_EBX_INVPCID, CPUID_7_0_EBX_RTM, - CPUID_7_0_EBX_RDSEED */ + CPUID_7_0_EBX_INVPCID, CPUID_7_0_EBX_RTM */ #define TCG_7_0_ECX_FEATURES (CPUID_7_0_ECX_UMIP | CPUID_7_0_ECX_PKU | \ /* CPUID_7_0_ECX_OSPKE is dynamic */ \ CPUID_7_0_ECX_LA57 | CPUID_7_0_ECX_PKS | CPUID_7_0_ECX_VAES)