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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 5AF8CC43334 for ; Thu, 9 Jun 2022 13:56:18 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1343629AbiFIN4O (ORCPT ); Thu, 9 Jun 2022 09:56:14 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:46998 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S245505AbiFINzx (ORCPT ); Thu, 9 Jun 2022 09:55:53 -0400 Received: from mail-pf1-x42e.google.com (mail-pf1-x42e.google.com [IPv6:2607:f8b0:4864:20::42e]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id B8991344DE for ; Thu, 9 Jun 2022 06:55:51 -0700 (PDT) Received: by mail-pf1-x42e.google.com with SMTP id c196so21171454pfb.1 for ; Thu, 09 Jun 2022 06:55:51 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20210112; h=date:from:to:cc:subject:message-id:references:mime-version :content-disposition:in-reply-to; bh=2tLHzK+mawqr5s4YQ6aG7zolZuEOi6xg/YnpIdOHgKA=; b=NyQLoPCJ3Fw1Rd/RGxC+T32bhwep+nu9XPymI+sdFXniE5ncki+AyZjF1fI9FAvhg4 Sd5BckuKevSoBcFbK6aZaFh8Kzat3G+uSAqRhBR4WBWpOOcVKlaExzWaHMw367fik5B9 3QbcbwmyQOcwBpBwlGFrgxkQD4/1mx7ahCEJDokNSmGRdu6VIgTBZXbkPU8DcwkwnDT9 qZudTLrtNMJP2US4cdNk6i+6HSIexRMbVZADyrgdK3UyFHn7roMgdruLGog8dPIjB/9u LSbl7vBuXu11RixFHrtp9Q82e7uJJt36zylh1BLV6lJuO5LLowub7Yiy0TwWHwrAbVPs 188A== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:date:from:to:cc:subject:message-id:references :mime-version:content-disposition:in-reply-to; bh=2tLHzK+mawqr5s4YQ6aG7zolZuEOi6xg/YnpIdOHgKA=; b=yWDU7PIQsE+XVBYEOLswtTfHpEX50EqlvF9NylZ/ShKRAgTQ9cH/bDRATAdaO3hDF7 yKqH4hhi0QG71c6X0oyMvyWTqu/ESyZsMGv5YAJsj4/Iaqqx6vhRRpt1XAWTWuLtqJ7T AbKZ/GEB+7H7e7GobAUjHDWA41yhFFYqtoNi1BS952x8N4G/gTfrn6KiVV8EksQA1JTr 08CY2WltEJLemNScpKnDAzbUgbLOwnuQZXzyMVIefDDv484Lqxw3SFdUlV84yBdEYiCc 5dP2kwj+AE7qwpgF//LFOyNRLAKmPpvXZUthPG/E56HAQN6s0pVHMGXwV0BeinXSOm51 tvdA== X-Gm-Message-State: AOAM532a3emWyka3bKoZnUeGjYMw43K2pU+2b4bN5yLu0R4t+r4pu1Wk vx8oHTw3ogmRrIwzp0i7aMliPQ== X-Google-Smtp-Source: ABdhPJw3Ip8vO/1+HSILbK6hPsf2Tnb1VWLRa9LQz5MYHsS2lwxwBEZCQ0c7Omj0EJ7aXxIunxnCsQ== X-Received: by 2002:a63:40c3:0:b0:3fd:12b8:3207 with SMTP id n186-20020a6340c3000000b003fd12b83207mr30674164pga.57.1654782951047; Thu, 09 Jun 2022 06:55:51 -0700 (PDT) Received: from google.com (157.214.185.35.bc.googleusercontent.com. [35.185.214.157]) by smtp.gmail.com with ESMTPSA id f10-20020a17090ace0a00b001e31803540fsm16034735pju.6.2022.06.09.06.55.50 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 09 Jun 2022 06:55:50 -0700 (PDT) Date: Thu, 9 Jun 2022 13:55:46 +0000 From: Sean Christopherson To: Yuan Yao Cc: Paolo Bonzini , Vitaly Kuznetsov , Wanpeng Li , Jim Mattson , Joerg Roedel , kvm@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH 5/5] KVM: selftests: Add MONITOR/MWAIT quirk test Message-ID: References: <20220608224516.3788274-1-seanjc@google.com> <20220608224516.3788274-6-seanjc@google.com> <20220609063720.wf4famdgoucbglnq@yy-desk-7060> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20220609063720.wf4famdgoucbglnq@yy-desk-7060> Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu, Jun 09, 2022, Yuan Yao wrote: > On Wed, Jun 08, 2022 at 10:45:16PM +0000, Sean Christopherson wrote: > > +static void guest_monitor_wait(int testcase) > > +{ > > + /* > > + * If both MWAIT and its quirk are disabled, MONITOR/MWAIT should #UD, > > + * in all other scenarios KVM should emulate them as nops. > > + */ > > + bool fault_wanted = (testcase & MWAIT_QUIRK_DISABLED) && > > + (testcase & MWAIT_DISABLED); > > + u8 vector; > > + > > + GUEST_SYNC(testcase); > > + > > + vector = kvm_asm_safe("monitor"); > > + if (fault_wanted) > > + GUEST_ASSERT_2(vector == UD_VECTOR, testcase, vector); > > + else > > + GUEST_ASSERT_2(!vector, testcase, vector); > > + > > + vector = kvm_asm_safe("monitor"); > > emmm... should one of the "monitor" be "mwait" ? /facepalm Thanks for catching my copy+paste fail!