Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751636AbcLCGsF (ORCPT ); Sat, 3 Dec 2016 01:48:05 -0500 Received: from terminus.zytor.com ([198.137.202.10]:48168 "EHLO mail.zytor.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750900AbcLCGsE (ORCPT ); Sat, 3 Dec 2016 01:48:04 -0500 User-Agent: K-9 Mail for Android In-Reply-To: <20161203054950.GB5701@gmail.com> References: <1476468318-24422-1-git-send-email-boris.ostrovsky@oracle.com> <1476468318-24422-3-git-send-email-boris.ostrovsky@oracle.com> <0b9894e4-753c-7e49-45a7-3ee5e82abe3e@oracle.com> <03294a9e-63b2-3cea-2dfe-808190f6fa0e@oracle.com> <20161202094554.GA28775@gmail.com> <20161202160855.GA3307@gmail.com> <3F5DA9BC-52BF-4025-AAB9-24C943BDB711@zytor.com> <20161203054950.GB5701@gmail.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain; charset=UTF-8 Subject: Re: [PATCH 2/8] x86/head: Refactor 32-bit pgtable setup From: hpa@zytor.com Date: Fri, 02 Dec 2016 22:36:00 -0800 To: Ingo Molnar , Boris Ostrovsky CC: Thomas Gleixner , Ingo Molnar , david.vrabel@citrix.com, JGross@suse.com, roger.pau@citrix.com, linux-kernel@vger.kernel.org, xen-devel@lists.xenproject.org, x86@kernel.org, Matt Fleming Message-ID: Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1021 Lines: 32 On December 2, 2016 9:49:50 PM PST, Ingo Molnar wrote: > >* Boris Ostrovsky wrote: > >> > It is tricky to do so safely, because at this stage almost nothing >of the C >> > execution environment has been set up. > >Yeah - but we do have a fair amount of early C code though. > >> I can still give it a try but I'd rather not tie it to this (Xen PVH) >patch >> series. Which would leave me with two options: either keep what this >patch does, >> leaving it as assembly (requires your ack), or have Xen code build >the pages on >> its own. > >If you give it a try in a subsequent patch (please Cc: me) then it's OK >to me: > > Acked-by: Ingo Molnar > >Feel free to carry it in the Xen tree. > >Thanks, > > Ingo It's true that it is now possible to run pre-paging C code. It would be so much better if Xen could simply go though the normal code path like any civilized machine. -- Sent from my Android device with K-9 Mail. Please excuse my brevity.