x86, mm, Xen: Remove mapping_pagetable_reserve()
Page table area are pre-mapped now after x86, mm: setup page table in top-down x86, mm: Remove early_memremap workaround for page table accessing on 64bit mapping_pagetable_reserve is not used anymore, so remove it. Also remove operation in mask_rw_pte(), as modified allow_low_page always return pages that are already mapped, moreover xen_alloc_pte_init, xen_alloc_pmd_init, etc, will mark the page RO before hooking it into the pagetable automatically. -v2: add changelog about mask_rw_pte() from Stefano. Signed-off-by: Yinghai Lu <yinghai@kernel.org> Link: http://lkml.kernel.org/r/1353123563-3103-27-git-send-email-yinghai@kernel.org Cc: Stefano Stabellini <stefano.stabellini@eu.citrix.com> Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
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H. Peter Anvin

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9985b4c6fa
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@@ -68,17 +68,6 @@ struct x86_init_oem {
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void (*banner)(void);
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};
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/**
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* struct x86_init_mapping - platform specific initial kernel pagetable setup
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* @pagetable_reserve: reserve a range of addresses for kernel pagetable usage
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*
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* For more details on the purpose of this hook, look in
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* init_memory_mapping and the commit that added it.
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*/
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struct x86_init_mapping {
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void (*pagetable_reserve)(u64 start, u64 end);
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};
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/**
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* struct x86_init_paging - platform specific paging functions
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* @pagetable_init: platform specific paging initialization call to setup
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@@ -136,7 +125,6 @@ struct x86_init_ops {
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struct x86_init_mpparse mpparse;
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struct x86_init_irqs irqs;
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struct x86_init_oem oem;
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struct x86_init_mapping mapping;
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struct x86_init_paging paging;
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struct x86_init_timers timers;
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struct x86_init_iommu iommu;
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