diff options
| author | Paul Mackerras <paulus@samba.org> | 2005-10-12 14:43:32 +1000 |
|---|---|---|
| committer | Paul Mackerras <paulus@samba.org> | 2005-10-12 14:43:32 +1000 |
| commit | b6ec995a21a9428aef620b5adf46d047a18d88b8 (patch) | |
| tree | 6719121e6605cbca524b687f47336b9bbf3b8d41 /arch/arm/mm/alignment.c | |
| parent | 3a5f8c5f788d68e325d9fe3c26f4df5a5aee838a (diff) | |
| parent | da64c6ee6bb71bfb3f09d9bb89ce1aa4b1ee7e89 (diff) | |
Merge from Linus' tree
Diffstat (limited to 'arch/arm/mm/alignment.c')
| -rw-r--r-- | arch/arm/mm/alignment.c | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/arch/arm/mm/alignment.c b/arch/arm/mm/alignment.c index 4b39d867ac14..f35e69e9c65c 100644 --- a/arch/arm/mm/alignment.c +++ b/arch/arm/mm/alignment.c @@ -330,6 +330,9 @@ do_alignment_ldrdstrd(unsigned long addr, unsigned long instr, { unsigned int rd = RD_BITS(instr); + if (((rd & 1) == 1) || (rd == 14)) + goto bad; + ai_dword += 1; if (user_mode(regs)) @@ -361,7 +364,8 @@ do_alignment_ldrdstrd(unsigned long addr, unsigned long instr, } return TYPE_LDST; - + bad: + return TYPE_ERROR; fault: return TYPE_FAULT; } @@ -663,6 +667,8 @@ do_alignment(unsigned long addr, unsigned int fsr, struct pt_regs *regs) else if ((instr & 0x001000f0) == 0x000000d0 || /* LDRD */ (instr & 0x001000f0) == 0x000000f0) /* STRD */ handler = do_alignment_ldrdstrd; + else if ((instr & 0x01f00ff0) == 0x01000090) /* SWP */ + goto swp; else goto bad; break; @@ -733,6 +739,9 @@ do_alignment(unsigned long addr, unsigned int fsr, struct pt_regs *regs) do_bad_area(current, current->mm, addr, fsr, regs); return 0; + swp: + printk(KERN_ERR "Alignment trap: not handling swp instruction\n"); + bad: /* * Oops, we didn't handle the instruction. |