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microblaze: Trap on illegal load/store sizes. 

Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
This commit is contained in:
Edgar E. Iglesias 2009-09-04 10:38:59 +02:00
parent 329bfa7739
commit 0187688f32
1 changed files with 13 additions and 0 deletions
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13
target-microblaze/translate.c
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@ -803,6 +803,12 @@ static void dec_load(DisasContext *dc)
unsigned int size;
size = 1 << (dc->opcode & 3);
if (size > 4 && (dc->tb_flags & MSR_EE_FLAG)
&& !(dc->env->pvr.regs[2] & PVR2_ILL_OPCODE_EXC_MASK)) {
tcg_gen_movi_tl(cpu_SR[SR_ESR], ESR_EC_ILLEGAL_OP);
t_gen_raise_exception(dc, EXCP_HW_EXCP);
return;
}
LOG_DIS("l %x %d\n", dc->opcode, size);
t_sync_flags(dc);
@ -849,6 +855,13 @@ static void dec_store(DisasContext *dc)
size = 1 << (dc->opcode & 3);
if (size > 4 && (dc->tb_flags & MSR_EE_FLAG)
&& !(dc->env->pvr.regs[2] & PVR2_ILL_OPCODE_EXC_MASK)) {
tcg_gen_movi_tl(cpu_SR[SR_ESR], ESR_EC_ILLEGAL_OP);
t_gen_raise_exception(dc, EXCP_HW_EXCP);
return;
}
LOG_DIS("s%d%s\n", size, dc->type_b ? "i" : "");
t_sync_flags(dc);
/* If we get a fault on a dslot, the jmpstate better be in sync. */