From mboxrd@z Thu Jan 1 00:00:00 1970 Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752131AbeAEQGT (ORCPT + 1 other); Fri, 5 Jan 2018 11:06:19 -0500 Received: from mail.linuxfoundation.org ([140.211.169.12]:59038 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751784AbeAEQGQ (ORCPT ); Fri, 5 Jan 2018 11:06:16 -0500 Date: Fri, 5 Jan 2018 17:06:17 +0100 From: Greg Kroah-Hartman To: Florian Fainelli Cc: Catalin Marinas , Will Deacon , mark.rutland@arm.com, keescook@chromium.org, ard.biesheuvel@linaro.org, dave.hansen@linux.intel.com, sboyd@codeaurora.org, linux-kernel@vger.kernel.org, msalter@redhat.com, tglx@linutronix.de, labbott@redhat.com, linux-arm-kernel@lists.infradead.org Subject: Re: [PATCH v3 00/20] arm64: Unmap the kernel whilst running in userspace (KPTI) Message-ID: <20180105160617.GC17349@kroah.com> References: <1512563739-25239-1-git-send-email-will.deacon@arm.com> <20171211175901.vbw7fpeijpqbp263@armageddon.cambridge.arm.com> <6fa84768-7431-22d2-4930-35b0b65ae86f@gmail.com> <20180104065018.GA22792@kroah.com> <092a51ec-f856-2b51-5d47-8acbdc671031@gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <092a51ec-f856-2b51-5d47-8acbdc671031@gmail.com> User-Agent: Mutt/1.9.2 (2017-12-15) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Return-Path: On Thu, Jan 04, 2018 at 10:23:40AM -0800, Florian Fainelli wrote: > On 01/03/2018 10:50 PM, Greg Kroah-Hartman wrote: > > On Wed, Jan 03, 2018 at 09:17:26PM -0800, Florian Fainelli wrote: > >> On 12/11/2017 09:59 AM, Catalin Marinas wrote: > >>> On Wed, Dec 06, 2017 at 12:35:19PM +0000, Will Deacon wrote: > >>>> Patches are also pushed here: > >>>> > >>>> git://git.kernel.org/pub/scm/linux/kernel/git/will/linux.git kpti > >>>> > >>>> Feedback and testing welcome. At this point, I'd like to start thinking > >>>> about getting this merged for 4.16. > >>> > >>> For the record, the fixed up version was pushed by Will here: > >>> > >>> git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git kpti > >>> > >>> and I queued it for 4.16 in the arm64 for-next/core branch (same tree as > >>> above). > >> > >> Greg proposed the x86/KPTI patches for the stable-4.9.75 queue, is there > >> a plan to get the ARM64/KPTI patches backported towards stable trees as > >> well? > > > > Stable tree patches have to get into Linus's tree first before I can do > > anything :) > > > > Anyway, once that happens, yes, there is a plan, but it's a bit > > "different", and I'll talk about it once these are merged. > > Great, thanks! Bonus question, if someone is using any of the affected > devices in AArch32, should we be expecting to see ARM/Linux changes as > well, that is, is there a plan to come up with a kpti implementation for > ARM? I have not heard of anyone working on this for any arm32 platforms, as of this time, sorry. Which makes me worry about my android tv, glad I don't connect it to the network :( thanks, greg k-h From mboxrd@z Thu Jan 1 00:00:00 1970 From: gregkh@linuxfoundation.org (Greg Kroah-Hartman) Date: Fri, 5 Jan 2018 17:06:17 +0100 Subject: [PATCH v3 00/20] arm64: Unmap the kernel whilst running in userspace (KPTI) In-Reply-To: <092a51ec-f856-2b51-5d47-8acbdc671031@gmail.com> References: <1512563739-25239-1-git-send-email-will.deacon@arm.com> <20171211175901.vbw7fpeijpqbp263@armageddon.cambridge.arm.com> <6fa84768-7431-22d2-4930-35b0b65ae86f@gmail.com> <20180104065018.GA22792@kroah.com> <092a51ec-f856-2b51-5d47-8acbdc671031@gmail.com> Message-ID: <20180105160617.GC17349@kroah.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org On Thu, Jan 04, 2018 at 10:23:40AM -0800, Florian Fainelli wrote: > On 01/03/2018 10:50 PM, Greg Kroah-Hartman wrote: > > On Wed, Jan 03, 2018 at 09:17:26PM -0800, Florian Fainelli wrote: > >> On 12/11/2017 09:59 AM, Catalin Marinas wrote: > >>> On Wed, Dec 06, 2017 at 12:35:19PM +0000, Will Deacon wrote: > >>>> Patches are also pushed here: > >>>> > >>>> git://git.kernel.org/pub/scm/linux/kernel/git/will/linux.git kpti > >>>> > >>>> Feedback and testing welcome. At this point, I'd like to start thinking > >>>> about getting this merged for 4.16. > >>> > >>> For the record, the fixed up version was pushed by Will here: > >>> > >>> git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git kpti > >>> > >>> and I queued it for 4.16 in the arm64 for-next/core branch (same tree as > >>> above). > >> > >> Greg proposed the x86/KPTI patches for the stable-4.9.75 queue, is there > >> a plan to get the ARM64/KPTI patches backported towards stable trees as > >> well? > > > > Stable tree patches have to get into Linus's tree first before I can do > > anything :) > > > > Anyway, once that happens, yes, there is a plan, but it's a bit > > "different", and I'll talk about it once these are merged. > > Great, thanks! Bonus question, if someone is using any of the affected > devices in AArch32, should we be expecting to see ARM/Linux changes as > well, that is, is there a plan to come up with a kpti implementation for > ARM? I have not heard of anyone working on this for any arm32 platforms, as of this time, sorry. Which makes me worry about my android tv, glad I don't connect it to the network :( thanks, greg k-h