From mboxrd@z Thu Jan 1 00:00:00 1970 From: Greg Kroah-Hartman Subject: Re: [PATCH 4.4 103/105] Revert "x86/mm/pat: Ensure cpa->pfn only contains page frame numbers" Date: Fri, 24 Aug 2018 21:17:49 +0200 Message-ID: <20180824191749.GA15489@kroah.com> References: <20171215092305.994559179@linuxfoundation.org> <20171215092311.347628971@linuxfoundation.org> <1535129126.2902.36.camel@codethink.co.uk> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Content-Disposition: inline In-Reply-To: Sender: stable-owner@vger.kernel.org To: Roland Dreier , Guenter Roeck Cc: Ben Hutchings , LKML , stable@vger.kernel.org, matt@codeblueprint.co.uk, bp@suse.de, Andrew Morton , Andy Lutomirski , luto@kernel.org, Ard Biesheuvel , bp@alien8.de, brgerst@gmail.com, davej@codemonkey.org.uk, dvlasenk@redhat.com, "H. Peter Anvin" , Linus Torvalds , Peter Zijlstra , sai.praneeth.prakhya@intel.com, sds@tycho.nsa.gov, Thomas Gleixner , toshi.kani@hp.com, linux-efi@vger.kernel.org, Ingo Molnar , Yazen.Ghannam@amd.com List-Id: linux-efi@vger.kernel.org On Fri, Aug 24, 2018 at 10:08:28AM -0700, Roland Dreier wrote: > > See > > . > > Thanks! I'm not using SGI UV and I'm not using kexec, so I guess I > sidestepped most of those issues. Greg, I think we need to unrevert > the cpa->pfn change (otherwise the L1TF fix probably gets pretty > messy) and I guess pull in the other patches that Ben mentions. Ok, so what patch should be reverted? I'm seeing other reports of problems all around this same area, but I can't figure out exactly what to do. Guenter, any ideas? thanks, greg k-h