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=-18.3 required=3.0 tests=BAYES_00,DKIMWL_WL_MED, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_IN_DEF_DKIM_WL autolearn=ham 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 5CC65C2B9F8 for ; Mon, 24 May 2021 22:44:30 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id CEB6C61400 for ; Mon, 24 May 2021 22:44:29 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org CEB6C61400 Authentication-Results: mail.kernel.org; dmarc=fail (p=reject dis=none) header.from=google.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id 530FB6B006C; Mon, 24 May 2021 18:44:29 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 4E0E46B006E; Mon, 24 May 2021 18:44:29 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 381876B0070; Mon, 24 May 2021 18:44:29 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0131.hostedemail.com [216.40.44.131]) by kanga.kvack.org (Postfix) with ESMTP id 088DE6B006C for ; Mon, 24 May 2021 18:44:28 -0400 (EDT) Received: from smtpin21.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay03.hostedemail.com (Postfix) with ESMTP id 900BC8249980 for ; Mon, 24 May 2021 22:44:28 +0000 (UTC) X-FDA: 78177605016.21.8BBF9E7 Received: from mail-pg1-f172.google.com (mail-pg1-f172.google.com [209.85.215.172]) by imf28.hostedemail.com (Postfix) with ESMTP id EC7C420007FE for ; Mon, 24 May 2021 22:44:22 +0000 (UTC) Received: by mail-pg1-f172.google.com with SMTP id 29so10085833pgu.11 for ; Mon, 24 May 2021 15:44:28 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20161025; h=date:from:to:cc:subject:message-id:references:mime-version :content-disposition:in-reply-to; bh=moS6oggcxprsPW7Vp6d1rxzceuGswLolHPrUHPRtQoE=; b=oh2uiXOdqhEKSOEolu5a8GzBcl8el+8zQzTE8McxvCRCcY6pmZpWRvSM5QxFQRcuXv mD1pMEu13vUg+qn+X2iQXaEdfShgTQ17886vh1ONinU9JW2yrJq6i6+bH3j8KpoM1Zr+ EWYBFnQW9dLTyCvpNEAwPzsI8FRlg3AJ0lBIw1c7AA1kpEV1u4BwMPoN7SwOuGo80DIX d3x4WArgQdBaoffF2NConzqpRkVCNQ69RyyVM1ptFGgLZZ2A/CX7tkNdfCJerSN9VBuM PMl0gxTgnNNfO0lk7r9+odLmNk3xeawNts1DFJQGrYbMM4DYdYbCjt78bMYmkaDhMNa8 r1dA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:from:to:cc:subject:message-id:references :mime-version:content-disposition:in-reply-to; bh=moS6oggcxprsPW7Vp6d1rxzceuGswLolHPrUHPRtQoE=; b=fXkPpoKoYgbR0ludMX8XwmIy6uyhIkeJMp95GHxPx9NdB8Un+RObXgIAF6v7j72NOQ 20HOCoxbCFAVp3j5lf3ypNDISS7QWAGJZqzUcJcbDnr6Cx1AW61xK6ROx8UXZcZw9NK5 NXSTmDyTk4nyxe2wcDrIbqyoT4fgVkeuVzzYPTXpC9KixZUQlaOINFMDNe5wCq/pcPH6 0gdLLc8yG5AmLmKEZNVcm+Dz+jl2xBVS5jXCdTZL6kIMnNw80xgmiQBMa0PG+0DIhfmS 5wH0kgn/ulbUbp3G0yWId2H6za87+nyp4UGFaxjQP+Nwq1KJbDJUWYFof97toBZyCDlr BgNw== X-Gm-Message-State: AOAM531UhrKKq7C083VTAajvLkxFV2936BbyCKItK5jSZhOUMAhkezbH TH+mJL0wXIUxVN/ph85JEz+KVw== X-Google-Smtp-Source: ABdhPJxSh18GawCsjpGGc8gjOk8Vp48a3+k4tw5NRMvMkH4EZvvHo8CAwnSHf8a0mOw2fnr0cnPyvg== X-Received: by 2002:a63:79c3:: with SMTP id u186mr15844970pgc.203.1621896267147; Mon, 24 May 2021 15:44:27 -0700 (PDT) Received: from google.com (240.111.247.35.bc.googleusercontent.com. [35.247.111.240]) by smtp.gmail.com with ESMTPSA id 66sm12793435pgj.9.2021.05.24.15.44.26 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 24 May 2021 15:44:26 -0700 (PDT) Date: Mon, 24 May 2021 22:44:22 +0000 From: Sean Christopherson To: Paolo Bonzini Cc: Jim Mattson , Marc Orr , kvm list , David Rientjes , Konrad Rzeszutek Wilk , linux-mm , Andrew Morton , Radim =?utf-8?B?S3LEjW3DocWZ?= , Matthew Wilcox , Dave Hansen , Wanpeng Li Subject: Re: [kvm PATCH v6 0/2] shrink vcpu_vmx down to order 2 Message-ID: References: <20181031234928.144206-1-marcorr@google.com> <34bf7026-4f83-067e-f3d8-aad76f9cf624@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <34bf7026-4f83-067e-f3d8-aad76f9cf624@redhat.com> Authentication-Results: imf28.hostedemail.com; dkim=pass header.d=google.com header.s=20161025 header.b=oh2uiXOd; dmarc=pass (policy=reject) header.from=google.com; spf=pass (imf28.hostedemail.com: domain of seanjc@google.com designates 209.85.215.172 as permitted sender) smtp.mailfrom=seanjc@google.com X-Rspamd-Server: rspam05 X-Rspamd-Queue-Id: EC7C420007FE X-Stat-Signature: b4goh63f8doxuzy3nzpys9z516azfui3 X-HE-Tag: 1621896262-617566 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: On Mon, May 24, 2021, Paolo Bonzini wrote: > On 21/05/21 22:58, Jim Mattson wrote: > > On Wed, Oct 31, 2018 at 4:49 PM Marc Orr wrote: > > > > > > Compared to the last version, I've: > > > (1) dropped the vmalloc patches > > > (2) updated the kmem cache for the guest_fpu field in the kvm_vcpu_arch > > > struct to be sized according to fpu_kernel_xstate_size > > > (3) Added minimum FPU checks in KVM's x86 init logic to avoid memory > > > corruption issues. > > > > > > Marc Orr (2): > > > kvm: x86: Use task structs fpu field for user > > > kvm: x86: Dynamically allocate guest_fpu > > > > > > arch/x86/include/asm/kvm_host.h | 10 +++--- > > > arch/x86/kvm/svm.c | 10 ++++++ > > > arch/x86/kvm/vmx.c | 10 ++++++ > > > arch/x86/kvm/x86.c | 55 ++++++++++++++++++++++++--------- > > > 4 files changed, 65 insertions(+), 20 deletions(-) > > > > > > -- > > > > Whatever happened to this series? > > There was a question about the usage of kmem_cache_create_usercopy, and a v7 > was never sent. What's that go to do with anything? :-D b666a4b69739 ("kvm: x86: Dynamically allocate guest_fpu") 240c35a3783a ("kvm: x86: Use task structs fpu field for user")