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target-arm: A64: Emulate the SMC insn

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Signed-off-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Message-id: 1411718914-6608-10-git-send-email-edgar.iglesias@gmail.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Edgar E. Iglesias 2014-09-29 18:48:50 +01:00 • committed by Peter Maydell
parent 607d98b81e
commit e0d6e6a5e7
7 changed files with 51 additions and 0 deletions
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13
target-arm/translate-a64.c
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@ -1470,6 +1470,7 @@ static void disas_exc(DisasContext *s, uint32_t insn)
int opc = extract32(insn, 21, 3);
int op2_ll = extract32(insn, 0, 5);
int imm16 = extract32(insn, 5, 16);
TCGv_i32 tmp;
switch (opc) {
case 0:
@ -1496,6 +1497,18 @@ static void disas_exc(DisasContext *s, uint32_t insn)
gen_ss_advance(s);
gen_exception_insn(s, 0, EXCP_HVC, syn_aa64_hvc(imm16));
break;
case 3:
if (!arm_dc_feature(s, ARM_FEATURE_EL3) || s->current_pl == 0) {
unallocated_encoding(s);
break;
}
gen_a64_set_pc_im(s->pc - 4);
tmp = tcg_const_i32(syn_aa64_smc(imm16));
gen_helper_pre_smc(cpu_env, tmp);
tcg_temp_free_i32(tmp);
gen_ss_advance(s);
gen_exception_insn(s, 0, EXCP_SMC, syn_aa64_smc(imm16));
break;
default:
unallocated_encoding(s);
break;