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));
}
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
}
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;
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
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),