diff options
Diffstat (limited to 'arch/x86')
| -rw-r--r-- | arch/x86/include/asm/pgtable_types.h | 1 | ||||
| -rw-r--r-- | arch/x86/include/asm/x86_init.h | 12 | ||||
| -rw-r--r-- | arch/x86/kernel/x86_init.c | 4 | ||||
| -rw-r--r-- | arch/x86/mm/init.c | 4 | ||||
| -rw-r--r-- | arch/x86/xen/mmu.c | 28 |
5 files changed, 0 insertions, 49 deletions
diff --git a/arch/x86/include/asm/pgtable_types.h b/arch/x86/include/asm/pgtable_types.h index ec8a1fc9505..79738f20aaf 100644 --- a/arch/x86/include/asm/pgtable_types.h +++ b/arch/x86/include/asm/pgtable_types.h @@ -301,7 +301,6 @@ int phys_mem_access_prot_allowed(struct file *file, unsigned long pfn, /* Install a pte for a particular vaddr in kernel space. */ void set_pte_vaddr(unsigned long vaddr, pte_t pte); -extern void native_pagetable_reserve(u64 start, u64 end); #ifdef CONFIG_X86_32 extern void native_pagetable_init(void); #else diff --git a/arch/x86/include/asm/x86_init.h b/arch/x86/include/asm/x86_init.h index 57693498519..3b2ce8fc995 100644 --- a/arch/x86/include/asm/x86_init.h +++ b/arch/x86/include/asm/x86_init.h @@ -69,17 +69,6 @@ struct x86_init_oem { }; /** - * struct x86_init_mapping - platform specific initial kernel pagetable setup - * @pagetable_reserve: reserve a range of addresses for kernel pagetable usage - * - * For more details on the purpose of this hook, look in - * init_memory_mapping and the commit that added it. - */ -struct x86_init_mapping { - void (*pagetable_reserve)(u64 start, u64 end); -}; - -/** * struct x86_init_paging - platform specific paging functions * @pagetable_init: platform specific paging initialization call to setup * the kernel pagetables and prepare accessors functions. @@ -136,7 +125,6 @@ struct x86_init_ops { struct x86_init_mpparse mpparse; struct x86_init_irqs irqs; struct x86_init_oem oem; - struct x86_init_mapping mapping; struct x86_init_paging paging; struct x86_init_timers timers; struct x86_init_iommu iommu; diff --git a/arch/x86/kernel/x86_init.c b/arch/x86/kernel/x86_init.c index 7a3d075a814..50cf83ecd32 100644 --- a/arch/x86/kernel/x86_init.c +++ b/arch/x86/kernel/x86_init.c @@ -62,10 +62,6 @@ struct x86_init_ops x86_init __initdata = { .banner = default_banner, }, - .mapping = { - .pagetable_reserve = native_pagetable_reserve, - }, - .paging = { .pagetable_init = native_pagetable_init, }, diff --git a/arch/x86/mm/init.c b/arch/x86/mm/init.c index 6392bf9a394..21173fcdb4a 100644 --- a/arch/x86/mm/init.c +++ b/arch/x86/mm/init.c @@ -112,10 +112,6 @@ static void __init probe_page_size_mask(void) __supported_pte_mask |= _PAGE_GLOBAL; } } -void __init native_pagetable_reserve(u64 start, u64 end) -{ - memblock_reserve(start, end - start); -} #ifdef CONFIG_X86_32 #define NR_RANGE_MR 3 diff --git a/arch/x86/xen/mmu.c b/arch/x86/xen/mmu.c index dcf5f2dd91e..bbb883f58bc 100644 --- a/arch/x86/xen/mmu.c +++ b/arch/x86/xen/mmu.c @@ -1178,20 +1178,6 @@ static void xen_exit_mmap(struct mm_struct *mm) static void xen_post_allocator_init(void); -static __init void xen_mapping_pagetable_reserve(u64 start, u64 end) -{ - /* reserve the range used */ - native_pagetable_reserve(start, end); - - /* set as RW the rest */ - printk(KERN_DEBUG "xen: setting RW the range %llx - %llx\n", end, - PFN_PHYS(pgt_buf_top)); - while (end < PFN_PHYS(pgt_buf_top)) { - make_lowmem_page_readwrite(__va(end)); - end += PAGE_SIZE; - } -} - #ifdef CONFIG_X86_64 static void __init xen_cleanhighmap(unsigned long vaddr, unsigned long vaddr_end) @@ -1503,19 +1489,6 @@ static pte_t __init mask_rw_pte(pte_t *ptep, pte_t pte) #else /* CONFIG_X86_64 */ static pte_t __init mask_rw_pte(pte_t *ptep, pte_t pte) { - unsigned long pfn = pte_pfn(pte); - - /* - * If the new pfn is within the range of the newly allocated - * kernel pagetable, and it isn't being mapped into an - * early_ioremap fixmap slot as a freshly allocated page, make sure - * it is RO. - */ - if (((!is_early_ioremap_ptep(ptep) && - pfn >= pgt_buf_start && pfn < pgt_buf_top)) || - (is_early_ioremap_ptep(ptep) && pfn != (pgt_buf_end - 1))) - pte = pte_wrprotect(pte); - return pte; } #endif /* CONFIG_X86_64 */ @@ -2197,7 +2170,6 @@ static const struct pv_mmu_ops xen_mmu_ops __initconst = { void __init xen_init_mmu_ops(void) { - x86_init.mapping.pagetable_reserve = xen_mapping_pagetable_reserve; x86_init.paging.pagetable_init = xen_pagetable_init; pv_mmu_ops = xen_mmu_ops; |