Re: [PATCH -v3 0/7] x86: Use BRK to pre mapping page table to makexen happy
From: Yinghai Lu
Date: Thu Oct 11 2012 - 02:14:21 EST
On Wed, Oct 10, 2012 at 9:40 AM, Stefano Stabellini
<stefano.stabellini@xxxxxxxxxxxxx> wrote:
>
> So you are missing the Xen patches entirely in this iteration of the
> series?
please check updated for-x86-mm branch.
[PATCH -v4 00/15] x86: Use BRK to pre mapping page table to make xen happy
on top of current linus/master and tip/x86/mm2, but please zap last
patch in that branch.
1. use brk to mapping first PMD_SIZE range.
2. top down to initialize page table range by range.
3. get rid of calculate page table, and find_early_page_table.
4. remove early_ioremap in page table accessing.
v2: changes, update xen interface about pagetable_reserve, so not
use pgt_buf_* in xen code directly.
v3: use range top-down to initialize page table, so will not use
calculating/find early table anymore.
also reorder the patches sequence.
v4: add mapping_mark_page_ro to fix xen, also move pgt_buf_* to init.c
and merge alloc_low_page()
could be found at:
git://git.kernel.org/pub/scm/linux/kernel/git/yinghai/linux-yinghai.git
for-x86-mm
Yinghai Lu (15):
x86, mm: Align start address to correct big page size
x86, mm: Use big page size for small memory range
x86, mm: Don't clear page table if next range is ram
x86, mm: only keep initial mapping for ram
x86, mm: Break down init_all_memory_mapping
x86, xen: Add xen_mapping_mark_page_ro
x86, mm: setup page table in top-down
x86, mm: Remove early_memremap workaround for page table accessing on 64bit
x86, mm: Remove parameter in alloc_low_page for 64bit
x86, mm: Merge alloc_low_page between 64bit and 32bit
x86, mm: Move min_pfn_mapped back to mm/init.c
x86, mm, xen: Remove mapping_pagatable_reserve
x86, mm: Add alloc_low_pages(num)
x86, mm: only call early_ioremap_page_range_init() one time on 32bit
x86, mm: Move back pgt_buf_* to mm/init.c
arch/x86/include/asm/init.h | 4 -
arch/x86/include/asm/pgtable.h | 1 +
arch/x86/include/asm/pgtable_types.h | 1 -
arch/x86/include/asm/x86_init.h | 2 +-
arch/x86/kernel/setup.c | 2 +
arch/x86/kernel/x86_init.c | 3 +-
arch/x86/mm/init.c | 321 +++++++++++++++-------------------
arch/x86/mm/init_32.c | 76 ++++++--
arch/x86/mm/init_64.c | 119 ++++---------
arch/x86/mm/mm_internal.h | 11 ++
arch/x86/xen/mmu.c | 29 +---
11 files changed, 249 insertions(+), 320 deletions(-)
create mode 100644 arch/x86/mm/mm_internal.h
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