diff options
| author | Linus Torvalds <torvalds@linux-foundation.org> | 2014-12-10 09:34:43 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2014-12-10 09:34:43 -0800 |
| commit | 3eb5b893ebec7325ac9e6b8e4864af89a9ca1ed1 (patch) | |
| tree | c1ced8c2c3eb68f14001fcca35d5b0eed8277a52 /fs | |
| parent | 9e66645d72d3c395da92b0f8855c787f4b5f0e89 (diff) | |
| parent | 9f7789f845cc100dd0d94fa1aa083e3373dc03db (diff) | |
Merge branch 'x86-mpx-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 MPX support from Thomas Gleixner:
"This enables support for x86 MPX.
MPX is a new debug feature for bound checking in user space. It
requires kernel support to handle the bound tables and decode the
bound violating instruction in the trap handler"
* 'x86-mpx-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
asm-generic: Remove asm-generic arch_bprm_mm_init()
mm: Make arch_unmap()/bprm_mm_init() available to all architectures
x86: Cleanly separate use of asm-generic/mm_hooks.h
x86 mpx: Change return type of get_reg_offset()
fs: Do not include mpx.h in exec.c
x86, mpx: Add documentation on Intel MPX
x86, mpx: Cleanup unused bound tables
x86, mpx: On-demand kernel allocation of bounds tables
x86, mpx: Decode MPX instruction to get bound violation information
x86, mpx: Add MPX-specific mmap interface
x86, mpx: Introduce VM_MPX to indicate that a VMA is MPX specific
x86, mpx: Add MPX to disabled features
ia64: Sync struct siginfo with general version
mips: Sync struct siginfo with general version
mpx: Extend siginfo structure to include bound violation information
x86, mpx: Rename cfg_reg_u and status_reg
x86: mpx: Give bndX registers actual names
x86: Remove arbitrary instruction size limit in instruction decoder
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/exec.c | 1 | ||||
| -rw-r--r-- | fs/proc/task_mmu.c | 3 |
2 files changed, 4 insertions, 0 deletions
diff --git a/fs/exec.c b/fs/exec.c index 7302b75a9820..01aebe300200 100644 --- a/fs/exec.c +++ b/fs/exec.c @@ -277,6 +277,7 @@ static int __bprm_mm_init(struct linux_binprm *bprm) goto err; mm->stack_vm = mm->total_vm = 1; + arch_bprm_mm_init(mm, vma); up_write(&mm->mmap_sem); bprm->p = vma->vm_end - sizeof(void *); return 0; diff --git a/fs/proc/task_mmu.c b/fs/proc/task_mmu.c index 4e0388cffe3d..f6734c6b66a6 100644 --- a/fs/proc/task_mmu.c +++ b/fs/proc/task_mmu.c @@ -552,6 +552,9 @@ static void show_smap_vma_flags(struct seq_file *m, struct vm_area_struct *vma) [ilog2(VM_GROWSDOWN)] = "gd", [ilog2(VM_PFNMAP)] = "pf", [ilog2(VM_DENYWRITE)] = "dw", +#ifdef CONFIG_X86_INTEL_MPX + [ilog2(VM_MPX)] = "mp", +#endif [ilog2(VM_LOCKED)] = "lo", [ilog2(VM_IO)] = "io", [ilog2(VM_SEQ_READ)] = "sr", |