Messages in this thread | | | From | Yinghai Lu <> | Subject | [PATCH -v3 0/7] x86: Use BRK to pre mapping page table to make xen happy | Date | Tue, 9 Oct 2012 16:58:28 -0700 |
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on top of 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.
could be found at: git://git.kernel.org/pub/scm/linux/kernel/git/yinghai/linux-yinghai.git for-x86-mm
later we could get rid of workaround about xen_mapping_pagetable_reserve, that could kill another 50 lines codes. --- will do that later because x86/mm2 is not updated to linus/master yet. If we do that now, will have merge conflicts.
Thanks
Yinghai Lu
Yinghai Lu (7): 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, mm: setup page table from top-down x86, mm: Remove early_memremap workaround for page table accessing
arch/x86/include/asm/page_types.h | 1 + arch/x86/include/asm/pgtable.h | 1 + arch/x86/kernel/setup.c | 3 + arch/x86/mm/init.c | 251 ++++++++++++------------------------ arch/x86/mm/init_32.c | 18 +++- arch/x86/mm/init_64.c | 100 ++++++--------- 6 files changed, 144 insertions(+), 230 deletions(-)
-- 1.7.7
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