diff options
Diffstat (limited to 'arch/x86/mm')
| -rw-r--r-- | arch/x86/mm/init_32.c | 20 | ||||
| -rw-r--r-- | arch/x86/mm/init_64.c | 10 |
2 files changed, 11 insertions, 19 deletions
diff --git a/arch/x86/mm/init_32.c b/arch/x86/mm/init_32.c index 016c8ccd1d8d..7c9bb3076b8a 100644 --- a/arch/x86/mm/init_32.c +++ b/arch/x86/mm/init_32.c @@ -770,34 +770,30 @@ void mark_rodata_ro(void) if (num_possible_cpus() <= 1) #endif { - change_page_attr(virt_to_page(start), - size >> PAGE_SHIFT, PAGE_KERNEL_RX); + set_pages_ro(virt_to_page(start), size >> PAGE_SHIFT); printk("Write protecting the kernel text: %luk\n", size >> 10); #ifdef CONFIG_CPA_DEBUG global_flush_tlb(); printk("Testing CPA: Reverting %lx-%lx\n", start, start+size); - change_page_attr(virt_to_page(start), size>>PAGE_SHIFT, - PAGE_KERNEL_EXEC); + set_pages_rw(virt_to_page(start), size>>PAGE_SHIFT); global_flush_tlb(); printk("Testing CPA: write protecting again\n"); - change_page_attr(virt_to_page(start), size>>PAGE_SHIFT, - PAGE_KERNEL_RX); + set_pages_ro(virt_to_page(start), size>>PAGE_SHIFT); global_flush_tlb(); #endif } #endif start += size; size = (unsigned long)__end_rodata - start; - change_page_attr(virt_to_page(start), - size >> PAGE_SHIFT, PAGE_KERNEL_RO); + set_pages_ro(virt_to_page(start), size >> PAGE_SHIFT); printk("Write protecting the kernel read-only data: %luk\n", size >> 10); /* - * change_page_attr() requires a global_flush_tlb() call after it. + * set_pages_*() requires a global_flush_tlb() call after it. * We do this after the printk so that if something went wrong in the * change, the printk gets out at least to give a better debug hint * of who is the culprit. @@ -806,13 +802,11 @@ void mark_rodata_ro(void) #ifdef CONFIG_CPA_DEBUG printk("Testing CPA: undo %lx-%lx\n", start, start + size); - change_page_attr(virt_to_page(start), size >> PAGE_SHIFT, - PAGE_KERNEL); + set_pages_rw(virt_to_page(start), size >> PAGE_SHIFT); global_flush_tlb(); printk("Testing CPA: write protecting again\n"); - change_page_attr(virt_to_page(start), size >> PAGE_SHIFT, - PAGE_KERNEL_RO); + set_pages_ro(virt_to_page(start), size >> PAGE_SHIFT); global_flush_tlb(); #endif } diff --git a/arch/x86/mm/init_64.c b/arch/x86/mm/init_64.c index c250580a9432..05bb12db0b09 100644 --- a/arch/x86/mm/init_64.c +++ b/arch/x86/mm/init_64.c @@ -556,8 +556,6 @@ void free_init_pages(char *what, unsigned long begin, unsigned long end) init_page_count(virt_to_page(addr)); memset((void *)(addr & ~(PAGE_SIZE-1)), POISON_FREE_INITMEM, PAGE_SIZE); - if (addr >= __START_KERNEL_map) - change_page_attr_addr(addr, 1, __pgprot(0)); free_page(addr); totalram_pages++; } @@ -594,13 +592,13 @@ void mark_rodata_ro(void) if (end <= start) return; - change_page_attr_addr(start, (end - start) >> PAGE_SHIFT, PAGE_KERNEL_RO); + set_memory_ro(start, (end - start) >> PAGE_SHIFT); printk(KERN_INFO "Write protecting the kernel read-only data: %luk\n", (end - start) >> 10); /* - * change_page_attr_addr() requires a global_flush_tlb() call after it. + * set_memory_*() requires a global_flush_tlb() call after it. * We do this after the printk so that if something went wrong in the * change, the printk gets out at least to give a better debug hint * of who is the culprit. @@ -609,11 +607,11 @@ void mark_rodata_ro(void) #ifdef CONFIG_CPA_DEBUG printk("Testing CPA: undo %lx-%lx\n", start, end); - change_page_attr_addr(start, (end - start) >> PAGE_SHIFT, PAGE_KERNEL); + set_memory_rw(start, (end-start) >> PAGE_SHIFT); global_flush_tlb(); printk("Testing CPA: again\n"); - change_page_attr_addr(start, (end - start) >> PAGE_SHIFT, PAGE_KERNEL_RO); + set_memory_ro(start, (end-start) >> PAGE_SHIFT); global_flush_tlb(); #endif } |
