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[2620:137:e000::1:20]) by mx.google.com with ESMTP id a4-20020a624d04000000b0058b79733cadsi32943632pfb.230.2023.01.20.23.37.06; Fri, 20 Jan 2023 23:37:13 -0800 (PST) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20; Authentication-Results: mx.google.com; dkim=pass header.i=@linuxfoundation.org header.s=korg header.b=XzHqMaRn; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=linuxfoundation.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229706AbjAUH2J (ORCPT + 52 others); Sat, 21 Jan 2023 02:28:09 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:48784 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229464AbjAUH2I (ORCPT ); Sat, 21 Jan 2023 02:28:08 -0500 Received: from sin.source.kernel.org (sin.source.kernel.org [IPv6:2604:1380:40e1:4800::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 549277028D; Fri, 20 Jan 2023 23:28:07 -0800 (PST) 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 sin.source.kernel.org (Postfix) with ESMTPS id 36D77CE1D4D; Sat, 21 Jan 2023 07:28:05 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id EDF3BC433D2; Sat, 21 Jan 2023 07:28:02 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1674286083; bh=o/NnGHbW3/LKlx06TTfc39eoc7OZYE08m75gGJnvJ2k=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=XzHqMaRnB3nDhyixTBYjav7evFKYot0WVYwXfegsKtxSdmb8halMMu/rmIqCuWGir imDiQ1DMdLcx+/3gIq87i+sgu0JVevccOTAkTGozAMEo3l3oBRyZuk34QmOLxJuRkw zX+hMux9LwcwLWLhfHJhWM4m8rwQUrgmwFsnaV0g= Date: Sat, 21 Jan 2023 08:28:00 +0100 From: Greg KH To: Kechen Lu Cc: kvm@vger.kernel.org, seanjc@google.com, pbonzini@redhat.com, zhi.wang.linux@gmail.com, chao.gao@intel.com, shaoqin.huang@intel.com, vkuznets@redhat.com, linux-kernel@vger.kernel.org, stable@vger.kernel.org Subject: Re: [RFC PATCH v6 1/6] KVM: x86: only allow exits disable before vCPUs created Message-ID: References: <20230121020738.2973-1-kechenl@nvidia.com> <20230121020738.2973-2-kechenl@nvidia.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20230121020738.2973-2-kechenl@nvidia.com> X-Spam-Status: No, score=-7.1 required=5.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,RCVD_IN_DNSWL_HI, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Sat, Jan 21, 2023 at 02:07:33AM +0000, Kechen Lu wrote: > From: Sean Christopherson > > Since VMX and SVM both would never update the control bits if exits > are disable after vCPUs are created, only allow setting exits > disable flag before vCPU creation. > > Fixes: 4d5422cea3b6 ("KVM: X86: Provide a capability to disable MWAIT intercepts") > > Signed-off-by: Sean Christopherson Nit, no blank line between fixes and signed-off-by please. And an RFC on v6? An RFC usually means "I don't think this is correct so do not take it". How can you do that for 6 versions? And know that no one will take an RFC series for that reason (or at least I will not...) thanks, greg k-h