From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Cyrus-Session-Id: sloti22d1t05-3209140-1518110840-2-9926637040928790999 X-Sieve: CMU Sieve 3.0 X-Spam-known-sender: no X-Spam-score: 0.0 X-Spam-hits: BAYES_00 -1.9, HEADER_FROM_DIFFERENT_DOMAINS 0.001, ME_NOAUTH 0.01, RCVD_IN_DNSWL_HI -5, T_RP_MATCHES_RCVD -0.01, LANGUAGES en, BAYES_USED global, SA_VERSION 3.4.0 X-Spam-source: IP='209.132.180.67', Host='vger.kernel.org', Country='US', FromHeader='org', MailFrom='org' X-Spam-charsets: cc='utf-8', plain='iso-8859-1' X-Resolved-to: greg@kroah.com X-Delivered-to: greg@kroah.com X-Mail-from: stable-owner@vger.kernel.org ARC-Seal: i=1; a=rsa-sha256; cv=none; d=messagingengine.com; s=arctest; t=1518110840; b=tvWDyvDTnsEZdhfQJbhbBR3XI2PTo7exZxL7/ZQe62DwJ3q VQZMDBYmKELtD7+JAFkosrhTN63HctFKNdVcqupvUgFycOvHH6To7JA6pHKl9C29 QjqB29Z0ZmGC9dO04LReQrdsQklr+4ai4ZC6frbCt2+/46eSyoQJ4z9z42nmsrON MzpuV0kV42DR/Q6JgEXRqAIJlY6RLaZksDEnm85ZodpPB5a70wZZb0Uucu88J/Qx yEar9/x9MwD+mhnBaVG6/pwOpGGWzOAvZztYitXvDUFUdkEhb69PlALt4U8UQXb/ kIaT6reaflsDZpMIVuz8DV7kknZocBJJY8YqOOA== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d= messagingengine.com; h=date:from:to:cc:subject:message-id :references:mime-version:content-type:content-transfer-encoding :in-reply-to:sender:list-id; s=arctest; t=1518110840; bh=bKw7nQt 0QNVJ43Whw+J3IcPPidBkcyL9pV3Ls9u07i0=; b=vXmt9EHCs9ELHQKOE58sCGq uSwtGsWUrH1UimzHjWz+Q2/xkZpp84A3YPDrlsVeX9w87fAg5tQwQRG1QdWDtSQ6 7Jx17AEve+kX6SEEBplQs3ojHT/hxyDRSHT2PhIUf7+b723J0mrtVnfDxuuMbtOx lTrWmPbR+kEY8ReB+MLUZwr5Bk1w0alrtwmZBxnQZWvU75ceHjOj45qtajsMhA+G hZyEDii2NDRV8v/4ykoFWn2i8VHbb1H2tHQ0hLhXlDYx4lomcK79+Bzvcgg5/4el u1yBedFgWmJlSe9yzvI0L1Jm1BnySPZ1SzXzJSSTtBbe8zRH9lxOja8b2g2mF0A= = ARC-Authentication-Results: i=1; mx6.messagingengine.com; arc=none (no signatures found); dkim=none (no signatures found); dmarc=none (p=none,has-list-id=yes,d=none) header.from=linuxfoundation.org; iprev=pass policy.iprev=209.132.180.67 (vger.kernel.org); spf=none smtp.mailfrom=stable-owner@vger.kernel.org smtp.helo=vger.kernel.org; x-aligned-from=fail; x-ptr=pass x-ptr-helo=vger.kernel.org x-ptr-lookup=vger.kernel.org; x-return-mx=pass smtp.domain=vger.kernel.org smtp.result=pass smtp_org.domain=kernel.org smtp_org.result=pass smtp_is_org_domain=no header.domain=linuxfoundation.org header.result=pass header_is_org_domain=yes Authentication-Results: mx6.messagingengine.com; arc=none (no signatures found); dkim=none (no signatures found); dmarc=none (p=none,has-list-id=yes,d=none) header.from=linuxfoundation.org; iprev=pass policy.iprev=209.132.180.67 (vger.kernel.org); spf=none smtp.mailfrom=stable-owner@vger.kernel.org smtp.helo=vger.kernel.org; x-aligned-from=fail; x-ptr=pass x-ptr-helo=vger.kernel.org x-ptr-lookup=vger.kernel.org; x-return-mx=pass smtp.domain=vger.kernel.org smtp.result=pass smtp_org.domain=kernel.org smtp_org.result=pass smtp_is_org_domain=no header.domain=linuxfoundation.org header.result=pass header_is_org_domain=yes Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752381AbeBHR1S (ORCPT ); Thu, 8 Feb 2018 12:27:18 -0500 Received: from mail.linuxfoundation.org ([140.211.169.12]:42418 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752215AbeBHR1S (ORCPT ); Thu, 8 Feb 2018 12:27:18 -0500 Date: Thu, 8 Feb 2018 18:14:36 +0100 From: Greg KH To: "Woodhouse, David" Cc: Paolo Bonzini , Jim Mattson , Radim =?utf-8?B?S3LEjW3DocWZ?= , linux-kernel@vger.kernel.org, kvm@vger.kernel.org, KarimAllah Ahmed , stable@vger.kernel.org Subject: Re: [STABLE 4.9.y PATCH 0/9] Backport of KVM Speculation Control support Message-ID: <20180208171436.GA3521@kroah.com> References: <1517938181-15317-1-git-send-email-dwmw@amazon.co.uk> <9ea4d52a-7ae6-a179-2f86-1e7b77255387@redhat.com> <1517951146.3677.34.camel@amazon.co.uk> <20180208024959.GA16399@kroah.com> MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <20180208024959.GA16399@kroah.com> User-Agent: Mutt/1.9.3 (2018-01-21) Sender: stable-owner@vger.kernel.org X-Mailing-List: stable@vger.kernel.org X-getmail-retrieved-from-mailbox: INBOX X-Mailing-List: linux-kernel@vger.kernel.org List-ID: On Thu, Feb 08, 2018 at 03:49:59AM +0100, Greg KH wrote: > On Tue, Feb 06, 2018 at 09:05:46PM +0000, Woodhouse, David wrote: > > > > > > On Tue, 2018-02-06 at 19:01 +0100, Paolo Bonzini wrote: > > > On 06/02/2018 18:29, David Woodhouse wrote: > > > > I've put together a linux-4.9.y branch at  > > > > http://git.infradead.org/retpoline-stable.git/shortlog/refs/heads/linux-4.9.y > > > >  > > > > Most of it is fairly straightforward, apart from the IBPB on context  > > > > switch for which Tim has already posted a candidate. I wanted some more > > > > review on my backports of the KVM bits though, including some extra > > > > historical patches I pulled in. > > > > > > Looks good!  Thanks for the work, > > > > > > Paolo > > > > Thanks. In that case, Greg, the full set is lined up in > > http://git.infradead.org/retpoline-stable.git/shortlog/refs/heads/linux-4.9.y > > or git://git.infradead.org/retpoline-stable linux-4.9.y > > Many thanks for all of this work. I've now queued up all of these. There's a problem with the backport of 6342c50ad12e ("KVM: nVMX: vmx_complete_nested_posted_interrupt() can't fail") as there is still a check in the function that can fail: vapic_page = kmap(vmx->nested.virtual_apic_page); if (!vapic_page) { WARN_ON(1); return -ENOMEM; } Do we need something else before this patch in order to fix this? I guess kmap really can't fail, should I just drop the whole (!vapic_page) check? thanks, greg k-h