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 2B5BAC77B7F for ; Fri, 12 May 2023 00:25:04 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230257AbjELAZD (ORCPT ); Thu, 11 May 2023 20:25:03 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:41034 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S238953AbjELAZC (ORCPT ); Thu, 11 May 2023 20:25:02 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [139.178.84.217]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id A724B49DB; Thu, 11 May 2023 17:25:00 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id 419AA652D0; Fri, 12 May 2023 00:25:00 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 9B899C433EF; Fri, 12 May 2023 00:24:59 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1683851099; bh=1N667dKFUnf2135diGg+q1p9YfGhwk7fwXto4T6LO2k=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=fX67XW+kvm5b7XpGdieylKyRAHXq7+3nIXsiIzUNOYOXEOOmapu0246mA8ZuzcJia O1fvg7Ua3f/wPrgSlMZ2xcJFoumwAA15GHdnYKK/LO3tEi9xY8ev9s4iOzqkTFR5tr /w5vo8rPhm0jh6jEEAeX9gNQUwyKvVK4V5qNawD8V6KevoviE0g+DEAXONGLwDIKjY cwkbDpRuEIawlFONG3shO51XFOGGsVuFmFqw/9UK/oOPtuXYizlxxwuyqzwyc7im9Y Xi+h+O3DSfQg/+NsoFyrlU9AjiJpUsFarqlJK1D9zJLmVURcAlt2mszEa/4zfTJ8QO ALfWCiADutwrQ== Date: Thu, 11 May 2023 20:24:59 -0400 From: Sasha Levin To: Mathias Krause Cc: stable@vger.kernel.org, Paolo Bonzini , Sean Christopherson , kvm@vger.kernel.org Subject: Re: [PATCH 6.2 0/5] KVM CR0.WP series backport Message-ID: References: <20230508154457.29956-1-minipli@grsecurity.net> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii; format=flowed Content-Disposition: inline In-Reply-To: <20230508154457.29956-1-minipli@grsecurity.net> Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org On Mon, May 08, 2023 at 05:44:52PM +0200, Mathias Krause wrote: >This is a backport of the CR0.WP KVM series[1] to Linux v6.2. All >commits applied either clean or with only minor changes needed to >account for missing prerequisite patches, e.g. the lack of a >kvm_is_cr0_bit_set() helper for patch 5 or the slightly different >surrounding context in patch 4 (__always_inline vs. plain inline for >to_kvm_vmx()). > >I used 'ssdd 10 50000' from rt-tests[2] as a micro-benchmark, running on >a grsecurity L1 VM. Below table shows the results (runtime in seconds, >lower is better): > > legacy TDP shadow > Linux v6.2.10 7.61s 7.98s 68.6s > + patches 3.37s 3.41s 70.2s > >The KVM unit test suite showed no regressions. > >Please consider applying. On our end waiting for ack from the KVM maintainers. -- Thanks, Sasha