diff options
Diffstat (limited to 'arch/i386/mm/init.c')
| -rw-r--r-- | arch/i386/mm/init.c | 27 |
1 files changed, 10 insertions, 17 deletions
diff --git a/arch/i386/mm/init.c b/arch/i386/mm/init.c index 7135946d3663..c3b9905af2d5 100644 --- a/arch/i386/mm/init.c +++ b/arch/i386/mm/init.c @@ -87,7 +87,7 @@ static pte_t * __init one_page_table_init(pmd_t *pmd) if (!(pmd_val(*pmd) & _PAGE_PRESENT)) { pte_t *page_table = (pte_t *) alloc_bootmem_low_pages(PAGE_SIZE); - paravirt_alloc_pt(__pa(page_table) >> PAGE_SHIFT); + paravirt_alloc_pt(&init_mm, __pa(page_table) >> PAGE_SHIFT); set_pmd(pmd, __pmd(__pa(page_table) | _PAGE_TABLE)); BUG_ON(page_table != pte_offset_kernel(pmd, 0)); } @@ -471,8 +471,13 @@ void zap_low_mappings (void) flush_tlb_all(); } +int nx_enabled = 0; + +#ifdef CONFIG_X86_PAE + static int disable_nx __initdata = 0; u64 __supported_pte_mask __read_mostly = ~_PAGE_NX; +EXPORT_SYMBOL_GPL(__supported_pte_mask); /* * noexec = on|off @@ -499,9 +504,6 @@ static int __init noexec_setup(char *str) } early_param("noexec", noexec_setup); -int nx_enabled = 0; -#ifdef CONFIG_X86_PAE - static void __init set_nx(void) { unsigned int v[4], l, h; @@ -751,8 +753,7 @@ void __init pgtable_cache_init(void) PTRS_PER_PMD*sizeof(pmd_t), PTRS_PER_PMD*sizeof(pmd_t), SLAB_PANIC, - pmd_ctor, - NULL); + pmd_ctor); if (!SHARED_KERNEL_PMD) { /* If we're in PAE mode and have a non-shared kernel pmd, then the pgd size must be a @@ -799,17 +800,9 @@ void mark_rodata_ro(void) unsigned long start = PFN_ALIGN(_text); unsigned long size = PFN_ALIGN(_etext) - start; -#ifndef CONFIG_KPROBES -#ifdef CONFIG_HOTPLUG_CPU - /* It must still be possible to apply SMP alternatives. */ - if (num_possible_cpus() <= 1) -#endif - { - change_page_attr(virt_to_page(start), - size >> PAGE_SHIFT, PAGE_KERNEL_RX); - printk("Write protecting the kernel text: %luk\n", size >> 10); - } -#endif + change_page_attr(virt_to_page(start), + size >> PAGE_SHIFT, PAGE_KERNEL_RX); + printk("Write protecting the kernel text: %luk\n", size >> 10); start += size; size = (unsigned long)__end_rodata - start; change_page_attr(virt_to_page(start), |