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 8E57EC76195 for ; Wed, 22 Mar 2023 07:42:03 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229778AbjCVHmC (ORCPT ); Wed, 22 Mar 2023 03:42:02 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:47334 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229620AbjCVHmA (ORCPT ); Wed, 22 Mar 2023 03:42:00 -0400 Received: from mail-ed1-x530.google.com (mail-ed1-x530.google.com [IPv6:2a00:1450:4864:20::530]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 157905A6E9 for ; Wed, 22 Mar 2023 00:41:59 -0700 (PDT) Received: by mail-ed1-x530.google.com with SMTP id r11so69142759edd.5 for ; Wed, 22 Mar 2023 00:41:59 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=grsecurity.net; s=grsec; t=1679470917; h=content-transfer-encoding:in-reply-to:from:references:cc:to :content-language:subject:user-agent:mime-version:date:message-id :from:to:cc:subject:date:message-id:reply-to; bh=qS06mqw6Gq+1rRSC5TaD+GeXJM68W3OY2rsM3goBUU0=; b=b63jxVHfc+ADhGI/mHvW0r2fjw7epc5gbj8E0yyKnn2oHINSCkG1dgdXt5AwWmpJjO e0AvQLKW0dKAieETNwkoPhO7TE1djmBYsFAr5b7Ds0C4+tKgPn4R/bxsDuiIx0RMoDHk 6q+ITMVMNx53VdZ61RBmxcGqq0SQjZdqWY0PahEwXWaCOv3M9zt9XLEPtrdGnwxpVtja m7G3RstXFIuIfbB1tmEBi+ezBkV2TR9ZO9qBjr2cqYPnEZUQqtP3bCzp1vgSborMMx18 TXdtafkAEQgipaATbh+9K9NR11Qr3mkd7O2duMm6dJI/Kk37C798YUZVOOTNZFGstziz 4jlw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; t=1679470917; h=content-transfer-encoding:in-reply-to:from:references:cc:to :content-language:subject:user-agent:mime-version:date:message-id :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=qS06mqw6Gq+1rRSC5TaD+GeXJM68W3OY2rsM3goBUU0=; b=EjzZI7IAvHSCo1V//+Ht/e91J09jMyMVZ1F/Fdt3LHKmr1o6oSx/mRdZJWgUPmPkbl Ul4g7s3XRfc2dBjwVHgzZGXnl/K4AyEiJWV854YrUgj9vlWAMn/uIwWWNUUquuF/1v7K 4r2pCWpGpCESTODyyKx9iljG7mIUAAG6ovSoZ4w2xFlGdOD9rYEbuV0ytZlMM27f4g/u kWZe/Os4KnW/YnV55uT6KiURWefRX63Lex0c5uNztbhwNZWPXcqJQz6T20PkI3Lb2Xa0 o1tZVbs+x0ZLifccryGIg4hgkE38GDvqTOXnoU6IQtfTRW9UvHg+KYAdzjTKF2GOF2oJ p0Sg== X-Gm-Message-State: AO0yUKWm0MWNbzyYR+XjYacqJVZ0gNJhwGmWtqo0uuSAJOO0fGLmDWOL LqPVWnoaNV0w6nzu8OdVGApTdA== X-Google-Smtp-Source: AK7set+ZgNfXV7bB//44xLLwZHC+3pXY+ZXD+doyZaKPceN4E3t6MU9mRhBT+9A15kC2y7JUXyBf0g== X-Received: by 2002:a17:906:a047:b0:92f:a6d3:b941 with SMTP id bg7-20020a170906a04700b0092fa6d3b941mr7063776ejb.30.1679470917587; Wed, 22 Mar 2023 00:41:57 -0700 (PDT) Received: from ?IPV6:2003:f6:af46:bf00:c0c2:695b:730f:946e? (p200300f6af46bf00c0c2695b730f946e.dip0.t-ipconnect.de. [2003:f6:af46:bf00:c0c2:695b:730f:946e]) by smtp.gmail.com with ESMTPSA id h25-20020a1709063c1900b008e8e975e185sm6747988ejg.32.2023.03.22.00.41.56 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Wed, 22 Mar 2023 00:41:57 -0700 (PDT) Message-ID: <87dd030b-77e1-edc0-846e-da654bbfc152@grsecurity.net> Date: Wed, 22 Mar 2023 08:41:55 +0100 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:102.0) Gecko/20100101 Thunderbird/102.8.0 Subject: Re: [PATCH v4 0/6] KVM: MMU: performance tweaks for heavy CR0.WP users Content-Language: en-US, de-DE To: kvm@vger.kernel.org Cc: linux-kernel@vger.kernel.org, Sean Christopherson , Paolo Bonzini References: <20230322013731.102955-1-minipli@grsecurity.net> From: Mathias Krause In-Reply-To: <20230322013731.102955-1-minipli@grsecurity.net> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 22.03.23 02:37, Mathias Krause wrote: > Bonus rant^Wbug report: > [VMs #GP'ing on WRMSR(IA32_PRED_CMD,...)] I see that this is already a well known bug, fully analyzed and taken care off: https://lore.kernel.org/kvm/20230322011440.2195485-1-seanjc@google.com/ Thanks, Mathias