From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S934520AbbEOMRs (ORCPT ); Fri, 15 May 2015 08:17:48 -0400 Received: from cantor2.suse.de ([195.135.220.15]:56950 "EHLO mx2.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S933981AbbEOMRr (ORCPT ); Fri, 15 May 2015 08:17:47 -0400 Message-ID: <5555E3E9.30009@suse.com> Date: Fri, 15 May 2015 14:17:45 +0200 From: Juergen Gross User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Thunderbird/31.6.0 MIME-Version: 1.0 To: xen-devel@lists.xensource.com, konrad.wilk@oracle.com, david.vrabel@citrix.com, boris.ostrovsky@oracle.com, linux-mm@kvack.org, linux-kernel@vger.kernel.org Subject: Re: [RESEND Patch V3 00/15] xen: support pv-domains larger than 512GB References: <1430727795-25133-1-git-send-email-jgross@suse.com> In-Reply-To: <1430727795-25133-1-git-send-email-jgross@suse.com> Content-Type: text/plain; charset=windows-1252; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Ping? On 05/04/2015 10:23 AM, Juergen Gross wrote: > Support 64 bit pv-domains with more than 512GB of memory. > > Tested with 64 bit dom0 on machines with 8GB and 1TB and 32 bit dom0 on a > 8GB machine. Conflicts between E820 map and different hypervisor populated > memory areas have been tested via a fake E820 map reserved area on the > 8GB machine. > > Changes in V3: > - rename xen_chk_e820_reserved() to xen_is_e820_reserved() as requested by > David Vrabel > - add __initdata tag to global variables in patch 10 > - move initrd conflict checking after reserving p2m memory (patch 11) > > Changes in V2: > - some clarifications and better explanations in commit messages > - add header changes of include/xen/interface/xen.h (patch 01) > - add wmb() when incrementing p2m_generation (patch 02) > - add new patch 03 (don't build mfn tree if tools don't need it) > - add new patch 06 (split counting of extra memory pages from remapping) > - add new patch 07 (check memory area against e820 map) > - replace early_iounmap() with early_memunmap() (patch 07->patch 08) > - rework patch 09 (check for kernel memory conflicting with memory layout) > - rework patch 10 (check pre-allocated page tables for conflict with memory map) > - combine old patches 08 and 11 into patch 11 > - add new patch 12 (provide early_memremap_ro to establish read-only mapping) > - rework old patch 12 (if p2m list located in to be remapped region delay > remapping) to copy p2m list in case of a conflict (now patch 13) > - correct Kconfig dependency (patch 13->14) > - don't limit dom0 to 512GB (patch 13->14) > - modify parameter parsing to work in very early boot (patch 13->14) > - add new patch 15 to do some cleanup > - remove old patch 05 (simplify xen_set_identity_and_remap() by using global > variables) > - remove old patch 08 (detect pre-allocated memory interfering with e820 map) > > > Juergen Gross (15): > xen: sync with xen headers > xen: save linear p2m list address in shared info structure > xen: don't build mfn tree if tools don't need it > xen: eliminate scalability issues from initial mapping setup > xen: move static e820 map to global scope > xen: split counting of extra memory pages from remapping > xen: check memory area against e820 map > xen: find unused contiguous memory area > xen: check for kernel memory conflicting with memory layout > xen: check pre-allocated page tables for conflict with memory map > xen: check for initrd conflicting with e820 map > mm: provide early_memremap_ro to establish read-only mapping > xen: move p2m list if conflicting with e820 map > xen: allow more than 512 GB of RAM for 64 bit pv-domains > xen: remove no longer needed p2m.h > > Documentation/kernel-parameters.txt | 7 + > arch/x86/include/asm/xen/interface.h | 96 +++++++- > arch/x86/include/asm/xen/page.h | 8 +- > arch/x86/xen/Kconfig | 20 +- > arch/x86/xen/mmu.c | 367 +++++++++++++++++++++++++++++-- > arch/x86/xen/p2m.c | 43 +++- > arch/x86/xen/p2m.h | 15 -- > arch/x86/xen/setup.c | 414 ++++++++++++++++++++++++++--------- > arch/x86/xen/xen-head.S | 2 + > arch/x86/xen/xen-ops.h | 6 + > include/asm-generic/early_ioremap.h | 2 + > include/asm-generic/fixmap.h | 3 + > include/xen/interface/xen.h | 10 +- > mm/early_ioremap.c | 11 + > 14 files changed, 822 insertions(+), 182 deletions(-) > delete mode 100644 arch/x86/xen/p2m.h > From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-wi0-f177.google.com (mail-wi0-f177.google.com [209.85.212.177]) by kanga.kvack.org (Postfix) with ESMTP id 1E44B6B006E for ; Fri, 15 May 2015 08:17:48 -0400 (EDT) Received: by wizk4 with SMTP id k4so284490693wiz.1 for ; Fri, 15 May 2015 05:17:47 -0700 (PDT) Received: from mx2.suse.de (cantor2.suse.de. [195.135.220.15]) by mx.google.com with ESMTPS id eu3si3384747wib.105.2015.05.15.05.17.46 for (version=TLSv1 cipher=ECDHE-RSA-RC4-SHA bits=128/128); Fri, 15 May 2015 05:17:46 -0700 (PDT) Message-ID: <5555E3E9.30009@suse.com> Date: Fri, 15 May 2015 14:17:45 +0200 From: Juergen Gross MIME-Version: 1.0 Subject: Re: [RESEND Patch V3 00/15] xen: support pv-domains larger than 512GB References: <1430727795-25133-1-git-send-email-jgross@suse.com> In-Reply-To: <1430727795-25133-1-git-send-email-jgross@suse.com> Content-Type: text/plain; charset=windows-1252; format=flowed Content-Transfer-Encoding: 7bit Sender: owner-linux-mm@kvack.org List-ID: To: xen-devel@lists.xensource.com, konrad.wilk@oracle.com, david.vrabel@citrix.com, boris.ostrovsky@oracle.com, linux-mm@kvack.org, linux-kernel@vger.kernel.org Ping? On 05/04/2015 10:23 AM, Juergen Gross wrote: > Support 64 bit pv-domains with more than 512GB of memory. > > Tested with 64 bit dom0 on machines with 8GB and 1TB and 32 bit dom0 on a > 8GB machine. Conflicts between E820 map and different hypervisor populated > memory areas have been tested via a fake E820 map reserved area on the > 8GB machine. > > Changes in V3: > - rename xen_chk_e820_reserved() to xen_is_e820_reserved() as requested by > David Vrabel > - add __initdata tag to global variables in patch 10 > - move initrd conflict checking after reserving p2m memory (patch 11) > > Changes in V2: > - some clarifications and better explanations in commit messages > - add header changes of include/xen/interface/xen.h (patch 01) > - add wmb() when incrementing p2m_generation (patch 02) > - add new patch 03 (don't build mfn tree if tools don't need it) > - add new patch 06 (split counting of extra memory pages from remapping) > - add new patch 07 (check memory area against e820 map) > - replace early_iounmap() with early_memunmap() (patch 07->patch 08) > - rework patch 09 (check for kernel memory conflicting with memory layout) > - rework patch 10 (check pre-allocated page tables for conflict with memory map) > - combine old patches 08 and 11 into patch 11 > - add new patch 12 (provide early_memremap_ro to establish read-only mapping) > - rework old patch 12 (if p2m list located in to be remapped region delay > remapping) to copy p2m list in case of a conflict (now patch 13) > - correct Kconfig dependency (patch 13->14) > - don't limit dom0 to 512GB (patch 13->14) > - modify parameter parsing to work in very early boot (patch 13->14) > - add new patch 15 to do some cleanup > - remove old patch 05 (simplify xen_set_identity_and_remap() by using global > variables) > - remove old patch 08 (detect pre-allocated memory interfering with e820 map) > > > Juergen Gross (15): > xen: sync with xen headers > xen: save linear p2m list address in shared info structure > xen: don't build mfn tree if tools don't need it > xen: eliminate scalability issues from initial mapping setup > xen: move static e820 map to global scope > xen: split counting of extra memory pages from remapping > xen: check memory area against e820 map > xen: find unused contiguous memory area > xen: check for kernel memory conflicting with memory layout > xen: check pre-allocated page tables for conflict with memory map > xen: check for initrd conflicting with e820 map > mm: provide early_memremap_ro to establish read-only mapping > xen: move p2m list if conflicting with e820 map > xen: allow more than 512 GB of RAM for 64 bit pv-domains > xen: remove no longer needed p2m.h > > Documentation/kernel-parameters.txt | 7 + > arch/x86/include/asm/xen/interface.h | 96 +++++++- > arch/x86/include/asm/xen/page.h | 8 +- > arch/x86/xen/Kconfig | 20 +- > arch/x86/xen/mmu.c | 367 +++++++++++++++++++++++++++++-- > arch/x86/xen/p2m.c | 43 +++- > arch/x86/xen/p2m.h | 15 -- > arch/x86/xen/setup.c | 414 ++++++++++++++++++++++++++--------- > arch/x86/xen/xen-head.S | 2 + > arch/x86/xen/xen-ops.h | 6 + > include/asm-generic/early_ioremap.h | 2 + > include/asm-generic/fixmap.h | 3 + > include/xen/interface/xen.h | 10 +- > mm/early_ioremap.c | 11 + > 14 files changed, 822 insertions(+), 182 deletions(-) > delete mode 100644 arch/x86/xen/p2m.h > -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. 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