Re: [PATCH 1/2] powerpc: Send SIGBUS on unaligned copy and paste

On Thu, Jun 09, 2016 at 08:57:50AM +0200, Christophe Leroy wrote:

Le 09/06/2016 à 08:01, Chris Smart a écrit :

quoted

Calling ISA 3.0 instructions copy, copy_first, paste and paste_last
generates an alignment fault when copying or pasting unaligned
data (128 byte). We catch this and send SIGBUS to the userspace
process that caused it.

[snip]

quoted

+    if ((instruction & 0xfc0006fe) == 0x7c00060c){

Can you define corresponding instruction and mask in 
arch/powerpc/include/asm/ppc-opcode.h
and use symbolic names here instead of raw values ?

Yep, thanks. Will look at doing this for V2.

Cheers,
-c