From mboxrd@z Thu Jan 1 00:00:00 1970 From: Peter Zijlstra Subject: Re: AMD TLB errata, (Was: [PATCH RFC] mm: add MAP_EXCLUSIVE to create exclusive user mappings) Date: Fri, 15 Nov 2019 15:31:14 +0100 Message-ID: <20191115143114.GN4131@hirez.programming.kicks-ass.net> References: <1572171452-7958-2-git-send-email-rppt@kernel.org> <20191028123124.ogkk5ogjlamvwc2s@box> <20191028130018.GA7192@rapoport-lnx> <20191028131623.zwuwguhm4v4s5imh@box> <20191029064318.s4n4gidlfjun3d47@box> <20191029085602.GI4114@hirez.programming.kicks-ass.net> <20191029110024.yjytp22lhd2vekrv@box> <20191029123949.GL4114@hirez.programming.kicks-ass.net> <1da1b025-cabc-6f04-bde5-e50830d1ecf0@amd.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Content-Disposition: inline In-Reply-To: <1da1b025-cabc-6f04-bde5-e50830d1ecf0@amd.com> Sender: linux-kernel-owner@vger.kernel.org To: Tom Lendacky Cc: "Kirill A. Shutemov" , Dan Williams , Mike Rapoport , Linux Kernel Mailing List , Alexey Dobriyan , Andrew Morton , Andy Lutomirski , Arnd Bergmann , Borislav Petkov , Dave Hansen , James Bottomley , Steven Rostedt , Thomas Gleixner , Ingo Molnar , "H. Peter Anvin" , Linux API , linux-mm , the arch/x86 maintainers , Mike Rapoport List-Id: linux-api@vger.kernel.org On Fri, Nov 15, 2019 at 08:12:52AM -0600, Tom Lendacky wrote: > I talked with some of the hardware folks and if you maintain the same bits > in the large and small pages (aside from the large page bit) until the > flush, then the errata should not occur. Excellent! Thanks for digging that out Tom.