powerpc: Emulate instructions in little endian mode · 4288e343fb - Gogs

powerpc: Emulate instructions in little endian mode

Alistair noticed we got a SIGILL on userspace mfpvr instructions.

Remove the little endian check in the emulation code, it is
probably there to protect against the old pseudo little endian
implementations but doesn't make sense for real little endian.

Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>

Anton Blanchard 12 years ago

parent

7ffcf8ec26

commit

4288e343fb

1 changed files with 1 additions and 1 deletions

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							+ 1
							
							- 1
						
arch/powerpc/kernel/traps.c
							 
								View File
							
				@@ -967,7 +967,7 @@ static int emulate_instruction(struct pt_regs *regs)
			
				 	u32 instword;
			
				 	u32 rd;
			
				-	if (!user_mode(regs) || (regs->msr & MSR_LE))
			
				+	if (!user_mode(regs))
			
				 		return -EINVAL;
			
				 	CHECK_FULL_REGS(regs);