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| author | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2017-08-14 14:50:58 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2017-08-14 14:50:58 -0700 |
| commit | feea468014f0c2f930b149e83a9047da86b26e4e (patch) | |
| tree | 29807205f471d63affd20e1e36fc3f832b55a106 /arch/arm64/mm/mmu.c | |
| parent | f24f27b85eadb6e6e7a68aa16c60a2d65789a02a (diff) | |
| parent | ef954844c7ace62f773f4f23e28d2d915adc419f (diff) | |
| download | blackbird-obmc-linux-feea468014f0c2f930b149e83a9047da86b26e4e.tar.gz blackbird-obmc-linux-feea468014f0c2f930b149e83a9047da86b26e4e.zip | |
Merge 4.13-rc5 into usb-next
This gets the USB fixes in here as well.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'arch/arm64/mm/mmu.c')
| -rw-r--r-- | arch/arm64/mm/mmu.c | 18 |
1 files changed, 11 insertions, 7 deletions
diff --git a/arch/arm64/mm/mmu.c b/arch/arm64/mm/mmu.c index 23c2d89a362e..f1eb15e0e864 100644 --- a/arch/arm64/mm/mmu.c +++ b/arch/arm64/mm/mmu.c @@ -496,7 +496,7 @@ void mark_rodata_ro(void) static void __init map_kernel_segment(pgd_t *pgd, void *va_start, void *va_end, pgprot_t prot, struct vm_struct *vma, - int flags) + int flags, unsigned long vm_flags) { phys_addr_t pa_start = __pa_symbol(va_start); unsigned long size = va_end - va_start; @@ -507,10 +507,13 @@ static void __init map_kernel_segment(pgd_t *pgd, void *va_start, void *va_end, __create_pgd_mapping(pgd, pa_start, (unsigned long)va_start, size, prot, early_pgtable_alloc, flags); + if (!(vm_flags & VM_NO_GUARD)) + size += PAGE_SIZE; + vma->addr = va_start; vma->phys_addr = pa_start; vma->size = size; - vma->flags = VM_MAP; + vma->flags = VM_MAP | vm_flags; vma->caller = __builtin_return_address(0); vm_area_add_early(vma); @@ -541,14 +544,15 @@ static void __init map_kernel(pgd_t *pgd) * Only rodata will be remapped with different permissions later on, * all other segments are allowed to use contiguous mappings. */ - map_kernel_segment(pgd, _text, _etext, text_prot, &vmlinux_text, 0); + map_kernel_segment(pgd, _text, _etext, text_prot, &vmlinux_text, 0, + VM_NO_GUARD); map_kernel_segment(pgd, __start_rodata, __inittext_begin, PAGE_KERNEL, - &vmlinux_rodata, NO_CONT_MAPPINGS); + &vmlinux_rodata, NO_CONT_MAPPINGS, VM_NO_GUARD); map_kernel_segment(pgd, __inittext_begin, __inittext_end, text_prot, - &vmlinux_inittext, 0); + &vmlinux_inittext, 0, VM_NO_GUARD); map_kernel_segment(pgd, __initdata_begin, __initdata_end, PAGE_KERNEL, - &vmlinux_initdata, 0); - map_kernel_segment(pgd, _data, _end, PAGE_KERNEL, &vmlinux_data, 0); + &vmlinux_initdata, 0, VM_NO_GUARD); + map_kernel_segment(pgd, _data, _end, PAGE_KERNEL, &vmlinux_data, 0, 0); if (!pgd_val(*pgd_offset_raw(pgd, FIXADDR_START))) { /* |
