Commit 111d7f4a authored by Aurelien Jarno's avatar Aurelien Jarno Committed by Alexander Graf
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target-s390x: fix exception for invalid operation code 



When an operation code is not recognized (ie invalid instruction) an
operation exception should be generated instead of a specification
exception. The latter is for valid opcode, with invalid operands or
modifiers.

This give a very basic GDB support in the guest, as it uses the invalid
opcode 0x0001 to generate a trap.

Reviewed-by: default avatarRichard Henderson <rth@twiddle.net>
Signed-off-by: default avatarAurelien Jarno <aurelien@aurel32.net>
Signed-off-by: default avatarAlexander Graf <agraf@suse.de>
parent a1c7610a

target-s390x/translate.c

+1 −1
Original line number Diff line number Diff line
@@ -320,7 +320,7 @@ static void gen_program_exception(DisasContext *s, int code) 


static inline void gen_illegal_opcode(DisasContext *s)

{

    gen_program_exception(s, PGM_SPECIFICATION);

    gen_program_exception(s, PGM_OPERATION);

}



#ifndef CONFIG_USER_ONLY