From mboxrd@z Thu Jan 1 00:00:00 1970 From: Matt Fleming Subject: Re: [GIT PULL] x86/mm changes for v4.4 Date: Fri, 6 Nov 2015 13:09:48 +0000 Message-ID: <20151106130948.GD2651@codeblueprint.co.uk> References: <20151103111649.GA3477@gmail.com> <20151104233907.GA25925@codemonkey.org.uk> <20151105021710.GA22941@codemonkey.org.uk> <20151106065549.GA2031@gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Content-Disposition: inline In-Reply-To: Sender: linux-efi-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: Andy Lutomirski Cc: Ingo Molnar , Linus Torvalds , Stephen Smalley , Dave Jones , Linux Kernel Mailing List , Thomas Gleixner , "H. Peter Anvin" , Borislav Petkov , Andrew Morton , Andy Lutomirski , Denys Vlasenko , Kees Cook , linux-efi-u79uwXL29TY76Z2rM5mHXA@public.gmane.org List-Id: linux-efi@vger.kernel.org On Thu, 05 Nov, at 11:05:35PM, Andy Lutomirski wrote: > > Admittedly, we might need to use a certain amount of care to avoid > interesting conflicts with the vmap mechanism. We might need to vmap > all of the EFI stuff, and possibly even all the top-level entries that > contain EFI stuff (i.e. exactly one of them unless EFI ends up *huge*) > as a blank not-present region to avoid overlaps, but that's not a big > deal. There shouldn't be any room for conflicting with vmap() because the VA region where we map EFI regions is still carved out especially for us. Right Boris?