Commit ad0ccf1e authored by David Hildenbrand's avatar David Hildenbrand Committed by Cornelia Huck
Browse files

s390x/tcg: Implement SIGNAL ADAPTER instruction 



KVM suppresses SIGA, setting cc=3. Let's do the same for TCG, so we're at
least equal.

Reviewed-by: default avatarRichard Henderson <richard.henderson@linaro.org>
Signed-off-by: default avatarDavid Hildenbrand <david@redhat.com>
Message-Id: <20171208160207.26494-12-david@redhat.com>
Signed-off-by: default avatarCornelia Huck <cohuck@redhat.com>
parent b9b0a4dc

target/s390x/insn-data.def

+1 −0
Original line number Diff line number Diff line
@@ -1056,6 +1056,7 @@ 
    C(0xb238, RSCH,    S,     Z,   0, 0, 0, 0, rsch, 0)

    C(0xb237, SAL,     S,     Z,   0, 0, 0, 0, sal, 0)

    C(0xb23c, SCHM,    S,     Z,   0, insn, 0, 0, schm, 0)

    C(0xb274, SIGA,    S,     Z,   0, 0, 0, 0, siga, 0)

    C(0xb23a, STCPS,   S,     Z,   0, 0, 0, 0, stcps, 0)

    C(0xb233, SSCH,    S,     Z,   0, insn, 0, 0, ssch, 0)

    C(0xb239, STCRW,   S,     Z,   0, insn, 0, 0, stcrw, 0)

target/s390x/translate.c

+8 −0
Original line number Diff line number Diff line
@@ -4132,6 +4132,14 @@ static ExitStatus op_schm(DisasContext *s, DisasOps *o) 
    return NO_EXIT;

}



static ExitStatus op_siga(DisasContext *s, DisasOps *o)

{

    check_privileged(s);

    /* From KVM code: Not provided, set CC = 3 for subchannel not operational */

    gen_op_movi_cc(s, 3);

    return NO_EXIT;

}



static ExitStatus op_stcps(DisasContext *s, DisasOps *o)

{

    check_privileged(s);