1. 20 Nov, 2008 1 commit
    • Tony Luck's avatar
      [IA64] Rationalize kernel mode alignment checking · b704882e
      Tony Luck authored
      Itanium processors can handle some misaligned data accesses. They
      also provide a mode where all such accesses are forced to trap. The
      kernel was schizophrenic about use of this mode:
      * Base kernel code ran in permissive mode where the only traps
        generated were from those cases that the h/w could not handle.
      * Interrupt, syscall and trap code ran in strict mode where all
        unaligned accesses caused traps to the 0x5a00 unaligned reference
      Use strict alignment checking throughout the kernel, but make
      sure that we continue to let user mode use more relaxed mode
      as the default.
      Signed-off-by: default avatarTony Luck <tony.luck@intel.com>
  2. 19 Nov, 2008 39 commits