From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752392AbbEDIXn (ORCPT ); Mon, 4 May 2015 04:23:43 -0400 Received: from cantor2.suse.de ([195.135.220.15]:35152 "EHLO mx2.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752136AbbEDIXT (ORCPT ); Mon, 4 May 2015 04:23:19 -0400 From: Juergen Gross 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 Cc: Juergen Gross Subject: [RESEND Patch V3 00/15] xen: support pv-domains larger than 512GB Date: Mon, 4 May 2015 10:23:00 +0200 Message-Id: <1430727795-25133-1-git-send-email-jgross@suse.com> X-Mailer: git-send-email 2.1.4 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 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 -- 2.1.4 From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-wi0-f178.google.com (mail-wi0-f178.google.com [209.85.212.178]) by kanga.kvack.org (Postfix) with ESMTP id 03EAF6B006C for ; Mon, 4 May 2015 04:23:20 -0400 (EDT) Received: by wiun10 with SMTP id n10so101910169wiu.1 for ; Mon, 04 May 2015 01:23:19 -0700 (PDT) Received: from mx2.suse.de (cantor2.suse.de. [195.135.220.15]) by mx.google.com with ESMTPS id x19si21504382wjq.43.2015.05.04.01.23.17 for (version=TLSv1 cipher=ECDHE-RSA-RC4-SHA bits=128/128); Mon, 04 May 2015 01:23:18 -0700 (PDT) From: Juergen Gross Subject: [RESEND Patch V3 00/15] xen: support pv-domains larger than 512GB Date: Mon, 4 May 2015 10:23:00 +0200 Message-Id: <1430727795-25133-1-git-send-email-jgross@suse.com> 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 Cc: Juergen Gross 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 -- 2.1.4 -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. 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