Messages in this thread | | | Subject | [PATCH 0/9] x86, mpx: Support 32-bit binaries on 64-bit kernels | From | Dave Hansen <> | Date | Mon, 02 Feb 2015 13:31:27 -0800 |
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The MPX hardware structures differ in layout in 32 and 64-bit mode. A 32-bit binary running on a 64-bit kernel needs the 32-bit structures, so we need code which switches between the two modes.
x86: make is_64bit_mm() widely available x86: make __VIRTUAL_MASK safe to use on 32 bit x86, mpx: we do not allocate the bounds directory x86, mpx: remove redundant MPX_BNDCFG_ADDR_MASK x86, mpx: Add temporary variable to reduce masking x86, mpx: new directory entry to addr helper x86, mpx: do 32-bit-only cmpxchg for 32-bit apps x86, mpx: support 32bit binaries on 64bit kernel
include/asm/mmu_context.h | 13 ++ include/asm/mpx.h | 66 ++++++------ include/asm/page_types.h | 8 + kernel/uprobes.c | 10 - mm/mpx.c | 241 ++++++++++++++++++++++++++++++++++++++-------- 5 files changed, 255 insertions(+), 83 deletions(-)
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