From patchwork Fri Oct 13 23:48:07 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sean Christopherson X-Patchwork-Id: 152864 Return-Path: Delivered-To: ouuuleilei@gmail.com Received: by 2002:a05:612c:2908:b0:403:3b70:6f57 with SMTP id ib8csp2215925vqb; Fri, 13 Oct 2023 16:48:40 -0700 (PDT) X-Google-Smtp-Source: AGHT+IGG1+EYa7g6lMRCcaaVUn4uFVf/3ynoaJBYC+uBSoRpq8F/gNU3N5dYVRC427kxhczaJACn X-Received: by 2002:a17:90a:4ca4:b0:274:99ed:a80c with SMTP id k33-20020a17090a4ca400b0027499eda80cmr25837640pjh.3.1697240919789; Fri, 13 Oct 2023 16:48:39 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1697240919; cv=none; d=google.com; s=arc-20160816; b=GGxG2JUjcWL/8VXGhvF8GT7422eAB78RWOGNDDYjE42f8ib2x693Mp9SVKDd5FZnIx N0JfZibjc8n8r6pFNjwN1BI0DDZNXR994i4zD4/hUWOOZ/FpJiDzyq8Q0dcNIMtDue8b HbtJICJ7DFl8Rj+8a13BgQcKPOBDKpkt5Wvg2Nr06wS2/rZFjJWOZgygxNYVPOsqkxjQ Z+y0DxrTKZLtT0BQBh6XhLM4Iax2D142kqhVVCptKIlLo/nEjTvjVYEny7XJSDyRsCBB isXYtsZPMo/Beu9xtZs/5o3pQQuNTlEkFyCJEUJll57Y76cFMfptggcKEGJpZAsr80AH bx3g== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:cc:to:from:subject:message-id:mime-version:date :reply-to:dkim-signature; bh=6hgi/RKQNNDqwrxZJncVIOXkyEQBa0Kuqd6mL/NONVI=; fh=dogxdQWc7Q2U5Ekp9F18wEHwMgE3kRwQ/60KgTj3654=; b=lCNmvIvkg2pVa8Pd5cX9pUdzl2lVpETgOgxZwSr5pAtMg4UyAq7UkuKWoiT5kufsLj zkoauxeQa2zEzV3At2o279dCxKQ91pF+x+PdTOf47sUlIO8+/YGV5iygNnFVh2GpDcZJ QftUh5cghn53H63kZzE++GsChbgTDoOir5riPu6RlX8pNwET+NPkTK5f/rZEVJE7XQEP vkorNy0ldGxB3L24MYDr0TmLgJGVxhv/+E2Jej7BVZ+HKbHVx7Ka4KgkOcAavmGqbT/U 69kfYpIBZ/BEszxmPKmrShp3h2CJCZlJu/v63EaphRb+jHP7K390iUfwGrWk2SpCJfp0 jWSw== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@google.com header.s=20230601 header.b=cM+88SkI; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.34 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=REJECT sp=REJECT dis=NONE) header.from=google.com Received: from howler.vger.email (howler.vger.email. [23.128.96.34]) by mx.google.com with ESMTPS id k7-20020a170902c40700b001c9cd55e303si4951691plk.589.2023.10.13.16.48.39 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 13 Oct 2023 16:48:39 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.34 as permitted sender) client-ip=23.128.96.34; Authentication-Results: mx.google.com; dkim=pass header.i=@google.com header.s=20230601 header.b=cM+88SkI; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.34 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=REJECT sp=REJECT dis=NONE) header.from=google.com Received: from out1.vger.email (depot.vger.email [IPv6:2620:137:e000::3:0]) by howler.vger.email (Postfix) with ESMTP id 0ED60834A9D5; Fri, 13 Oct 2023 16:48:37 -0700 (PDT) X-Virus-Status: Clean X-Virus-Scanned: clamav-milter 0.103.10 at howler.vger.email Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232587AbjJMXsT (ORCPT + 19 others); Fri, 13 Oct 2023 19:48:19 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:43702 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232574AbjJMXsP (ORCPT ); Fri, 13 Oct 2023 19:48:15 -0400 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 732ACCC for ; Fri, 13 Oct 2023 16:48:14 -0700 (PDT) Received: by mail-yb1-xb49.google.com with SMTP id 3f1490d57ef6-d9a483bdce7so3661760276.2 for ; Fri, 13 Oct 2023 16:48:14 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20230601; t=1697240893; x=1697845693; darn=vger.kernel.org; h=cc:to:from:subject:message-id:mime-version:date:reply-to:from:to:cc :subject:date:message-id:reply-to; bh=6hgi/RKQNNDqwrxZJncVIOXkyEQBa0Kuqd6mL/NONVI=; b=cM+88SkIyAEUBSJJxa2scpPupiGxaygLbvQXpG7FHVaUy5F1FLf/zpKDk3iWmPBPiR PhGjpYQ14TMjFe/sUj46UOdjE9rSHOfWcuiwxCMJW58dyzWepJm8VwVgH+sStAPr9Bgk gtfQfB3qmEtTHhFD57LJWsFlgXd7qRtXZprumU9YfNZXvWBe2k4ChXhWCXXDZIox2f+R ueangIuyu8AibzHP7aba+xQvkSPvP3bDz4lPm0Bdz/6LXkfQPOcsLorPsDEOEEnSuyMY H2m69hYIGqTqH6tewUX25QtrvaM8JilZTw8r25x7gCBSj4+M3sKBw5JYibLEiGD4ATpq tc4Q== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1697240893; x=1697845693; h=cc:to:from:subject:message-id:mime-version:date:reply-to :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=6hgi/RKQNNDqwrxZJncVIOXkyEQBa0Kuqd6mL/NONVI=; b=wIWIaHixYrodwVyBiJC4b4tvxIGdmh8PET6wQS23F4OveKAYl35cBZiNDI8FcEK2DL TkvhV6QFReuenrJ7XhJOhFTqlBR8NGX63ciPUgSUSD8ZAFa4Zejpz9Gpy4zTIQ84eZh7 HowplS9C61Ixz2bTCofbfYOxBbxZODy1aqLrkUmfqQuQdXvsbXmykiMV7IFW8XGR05z9 ZmTy0cf9V3fVunbmY/GRSBnWO7tA2syCJGmzNBJUVUjycQK4/2UbgBLPQc+9jLY/6C3P VgmDNYYNqt5tgTK/gDTsK+FpZsD4/plsAj8cyVCscU/kW56v3DJlxYuu1OX5+leJ6X9T dQQA== X-Gm-Message-State: AOJu0YxzqRsJdarg6HApZVgpJMxwLuN0rcyl+h0SjuhuZVI6qgYet+OH 6xtbPs1iPJichlKOpx4zmjlkdk4PS78= X-Received: from zagreus.c.googlers.com ([fda3:e722:ac3:cc00:7f:e700:c0a8:5c37]) (user=seanjc job=sendgmr) by 2002:a25:2643:0:b0:d9a:b957:116e with SMTP id m64-20020a252643000000b00d9ab957116emr173396ybm.3.1697240893763; Fri, 13 Oct 2023 16:48:13 -0700 (PDT) Reply-To: Sean Christopherson Date: Fri, 13 Oct 2023 16:48:07 -0700 Mime-Version: 1.0 X-Mailer: git-send-email 2.42.0.655.g421f12c284-goog Message-ID: <20231013234808.1115781-1-seanjc@google.com> Subject: [GIT PULL] KVM: x86: PMU fixes for 6.6 From: Sean Christopherson To: Paolo Bonzini Cc: kvm@vger.kernel.org, linux-kernel@vger.kernel.org, Sean Christopherson X-Spam-Status: No, score=-8.4 required=5.0 tests=DKIMWL_WL_MED,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_IN_DEF_DKIM_WL autolearn=unavailable autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on howler.vger.email Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org X-Greylist: Sender passed SPF test, not delayed by milter-greylist-4.6.4 (howler.vger.email [0.0.0.0]); Fri, 13 Oct 2023 16:48:37 -0700 (PDT) X-getmail-retrieved-from-mailbox: INBOX X-GMAIL-THRID: 1779686094827311162 X-GMAIL-MSGID: 1779686094827311162 Please pull three PMU fixes for 6.6. These aren't super urgent and have all existed from some time, i.e. don't absolutely need to go into 6.6, but I also don't see a good reason to hold them back (they're all tagged for stable, so it's kind of a moot point). The following changes since commit 5804c19b80bf625c6a9925317f845e497434d6d3: Merge tag 'kvm-riscv-fixes-6.6-1' of https://github.com/kvm-riscv/linux into HEAD (2023-09-23 05:35:55 -0400) are available in the Git repository at: https://github.com/kvm-x86/linux.git tags/kvm-x86-pmu-6.6-fixes for you to fetch changes up to 73554b29bd70546c1a9efc9c160641ef1b849358: KVM: x86/pmu: Synthesize at most one PMI per VM-exit (2023-09-25 14:42:52 -0700) ---------------------------------------------------------------- KVM x86/pmu fixes for 6.6: - Truncate writes to PMU counters to the counter's width to avoid spurious overflows when emulating counter events in software. - Set the LVTPC entry mask bit when handling a PMI (to match Intel-defined architectural behavior). - Treat KVM_REQ_PMI as a wake event instead of queueing host IRQ work to kick the guest out of emulated halt. ---------------------------------------------------------------- Jim Mattson (2): KVM: x86: Mask LVTPC when handling a PMI KVM: x86/pmu: Synthesize at most one PMI per VM-exit Roman Kagan (1): KVM: x86/pmu: Truncate counter value to allowed width on write arch/x86/include/asm/kvm_host.h | 1 - arch/x86/kvm/lapic.c | 8 ++++++-- arch/x86/kvm/pmu.c | 27 +-------------------------- arch/x86/kvm/pmu.h | 6 ++++++ arch/x86/kvm/svm/pmu.c | 2 +- arch/x86/kvm/vmx/pmu_intel.c | 4 ++-- arch/x86/kvm/x86.c | 3 +++ 7 files changed, 19 insertions(+), 32 deletions(-)