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target-arm: Handle SMC/HVC undef-if-no-ELx in pre_* helpers

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SMC must UNDEF if EL3 is not implemented; similarly HVC UNDEFs
if EL2 is not implemented. Move the handling of this from
translate-a64.c into the pre_smc and pre_hvc helper functions.
This is necessary because use of these instructions for PSCI
takes precedence over this UNDEF case, and we can't tell if
this is a PSCI call until runtime.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 1412865028-17725-5-git-send-email-peter.maydell@linaro.org
This commit is contained in:
Peter Maydell 2014-10-24 12:19:12 +01:00
parent 3df53cdf56
commit 3940433843
2 changed files with 12 additions and 9 deletions
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4
target-arm/translate-a64.c
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@ -1485,7 +1485,7 @@ static void disas_exc(DisasContext *s, uint32_t insn)
gen_exception_insn(s, 0, EXCP_SWI, syn_aa64_svc(imm16));
break;
case 2:
if (!arm_dc_feature(s, ARM_FEATURE_EL2) || s->current_pl == 0) {
if (s->current_pl == 0) {
unallocated_encoding(s);
break;
}
@ -1498,7 +1498,7 @@ static void disas_exc(DisasContext *s, uint32_t insn)
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) {
if (s->current_pl == 0) {
unallocated_encoding(s);
break;
}