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=-26.6 required=3.0 tests=BAYES_00,DKIMWL_WL_MED, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER,INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, USER_AGENT_GIT,USER_IN_DEF_DKIM_WL autolearn=unavailable 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 6FB3EC433E6 for ; Sat, 9 Jan 2021 00:50:00 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 456C723AC4 for ; Sat, 9 Jan 2021 00:50:00 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726982AbhAIAtk (ORCPT ); Fri, 8 Jan 2021 19:49:40 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:40178 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726819AbhAIAtg (ORCPT ); Fri, 8 Jan 2021 19:49:36 -0500 Received: from mail-yb1-xb49.google.com (mail-yb1-xb49.google.com [IPv6:2607:f8b0:4864:20::b49]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 6914CC0617A0 for ; Fri, 8 Jan 2021 16:47:58 -0800 (PST) Received: by mail-yb1-xb49.google.com with SMTP id l8so17284794ybj.16 for ; Fri, 08 Jan 2021 16:47:58 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20161025; h=sender:reply-to:date:in-reply-to:message-id:mime-version:references :subject:from:to:cc; bh=wNuz2MXteWLoYNC08f6B+I2//IVLsJEJ/GyZH+0v0jU=; b=OPcuUIG+0PBDu5E5I2V6/6DWcHof9ko8dH84q87ij20/D1XroEw7Epfd4H+uCKnPta PfzhoikXGyMmVPx0RGK5bgaClU7qR8xW5bLHuu68SOkeGw26rkfS4S9i+SIIqK660zQq m/dsPJqxWSCAVb6SyyysLorqWdOu9ZlZHXwXFtm6RDX25cSf0UmQG7+WzEu6lgLlGZvf ewOAr2Xlb++ezYaVmhXyVi3bOqQHrqXZFomrlW3UCOMJKMeavyedMk95nPKPR3j2EVzN eDrfAk6eIhBUX5Njn61PiL99MCr38RlX2A8azdvg9Y1ezpyIH9uwRLMBrma/YutwaH3i AzOw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:sender:reply-to:date:in-reply-to:message-id :mime-version:references:subject:from:to:cc; bh=wNuz2MXteWLoYNC08f6B+I2//IVLsJEJ/GyZH+0v0jU=; b=Ij5NlCh2G1wQlkcSUaz/GhFpXioaGlt+E4uBEjRQ+ydMAxXK/5BR62xM6ce8GoF7z/ FH3KyhBtvyoTV/9qEZ0gbCjzpRftpiD8kdiF7gdqB5S7gbJyH/3S9QK9pTkIXCW8CJCj Hu17jQK/K4/E18076utd408lioKNa2NsPvWhcmcX2m17XqCAmy7hauoZZUWRKVHAAkVG DsQXFIzbYRXzJEhtecvVaZy1kkDM8++3OAae/G1eSuJgxcHRd0c0PIKxzmpaOwkjy0UC lPDYQvM0lccZZFVjqQ0i/wLCrqLIqdHMMbdVGz1JxaoBjB+rnbKAnwJ8ZZpn5Q9QB0bc LsVA== X-Gm-Message-State: AOAM533/qXGX9kNvhAyupkS3Qib4UA5xNa+7p7DWbvqxirJSFOFK8n7f ux9T9NUBmOWMlm6zRJJr9UmzNtGaT78= X-Google-Smtp-Source: ABdhPJwLb6+N1nSXsCxoI5Fb6X4bdbTQ5A7peRNyMkYnd5Ubl1hltrhpMuXjprYk22tnvJ2xiSOJ80a8U6U= Sender: "seanjc via sendgmr" X-Received: from seanjc798194.pdx.corp.google.com ([2620:15c:f:10:1ea0:b8ff:fe73:50f5]) (user=seanjc job=sendgmr) by 2002:a25:5582:: with SMTP id j124mr9345524ybb.309.1610153277629; Fri, 08 Jan 2021 16:47:57 -0800 (PST) Reply-To: Sean Christopherson Date: Fri, 8 Jan 2021 16:47:10 -0800 In-Reply-To: <20210109004714.1341275-1-seanjc@google.com> Message-Id: <20210109004714.1341275-10-seanjc@google.com> Mime-Version: 1.0 References: <20210109004714.1341275-1-seanjc@google.com> X-Mailer: git-send-email 2.30.0.284.gd98b1dd5eaa7-goog Subject: [PATCH 09/13] KVM: SVM: Explicitly check max SEV ASID during sev_hardware_setup() From: Sean Christopherson To: Paolo Bonzini , Dave Hansen , Andy Lutomirski , Peter Zijlstra Cc: Sean Christopherson , Vitaly Kuznetsov , Wanpeng Li , Jim Mattson , Joerg Roedel , kvm@vger.kernel.org, linux-kernel@vger.kernel.org, Tom Lendacky , Borislav Petkov , Brijesh Singh Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Query max_sev_asid directly after setting it instead of bouncing through its wrapper, svm_sev_enabled(). Using the wrapper is unnecessary obfuscation. No functional change intended. Signed-off-by: Sean Christopherson --- arch/x86/kvm/svm/sev.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/arch/x86/kvm/svm/sev.c b/arch/x86/kvm/svm/sev.c index a024edabaca5..3d25d24bcb48 100644 --- a/arch/x86/kvm/svm/sev.c +++ b/arch/x86/kvm/svm/sev.c @@ -1272,8 +1272,7 @@ void __init sev_hardware_setup(void) /* Maximum number of encrypted guests supported simultaneously */ max_sev_asid = ecx; - - if (!svm_sev_enabled()) + if (!max_sev_asid) goto out; /* Minimum ASID value that should be used for SEV guest */ -- 2.30.0.284.gd98b1dd5eaa7-goog