From 9b79f52d1a702dd5b160f9d2ee0199c3122809bb Mon Sep 17 00:00:00 2001 From: Punit Agrawal Date: Tue, 18 Nov 2014 11:41:22 +0000 Subject: arm64: Add support for hooks to handle undefined instructions Add support to register hooks for undefined instructions. The handlers will be called when the undefined instruction and the processor state (as contained in pstate) match criteria used at registration. Signed-off-by: Punit Agrawal Reviewed-by: Catalin Marinas Signed-off-by: Will Deacon --- arch/arm64/kernel/insn.c | 5 +++++ 1 file changed, 5 insertions(+) (limited to 'arch/arm64/kernel/insn.c') diff --git a/arch/arm64/kernel/insn.c b/arch/arm64/kernel/insn.c index e007714ded04..ab00eb58d385 100644 --- a/arch/arm64/kernel/insn.c +++ b/arch/arm64/kernel/insn.c @@ -959,3 +959,8 @@ u32 aarch64_insn_gen_logical_shifted_reg(enum aarch64_insn_register dst, return aarch64_insn_encode_immediate(AARCH64_INSN_IMM_6, insn, shift); } + +bool aarch32_insn_is_wide(u32 insn) +{ + return insn >= 0xe800; +} -- cgit v1.2.3