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target/ppc: Move page crossing check to ppc_tr_translate_insn 

With prefixed instructions, the number of instructions
remaining until the page crossing is no longer constant.

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Matheus Ferst <matheus.ferst@eldorado.org.br>
Message-Id: <20210601193528.2533031-3-matheus.ferst@eldorado.org.br>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
This commit is contained in:
Richard Henderson 2021-06-01 16:35:16 -03:00 committed by David Gibson
parent c9826ae97e
commit 64a0f6448c
1 changed files with 6 additions and 3 deletions
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9
target/ppc/translate.c
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@ -8821,9 +8821,6 @@ static void ppc_tr_init_disas_context(DisasContextBase *dcbase, CPUState *cs)
if (ctx->singlestep_enabled & (CPU_SINGLE_STEP | GDBSTUB_SINGLE_STEP)) {
ctx->base.max_insns = 1;
} else {
int bound = -(ctx->base.pc_first | TARGET_PAGE_MASK) / 4;
ctx->base.max_insns = MIN(ctx->base.max_insns, bound);
}
}
@ -8874,6 +8871,12 @@ static void ppc_tr_translate_insn(DisasContextBase *dcbase, CPUState *cs)
gen_invalid(ctx);
}
/* End the TB when crossing a page boundary. */
if (ctx->base.is_jmp == DISAS_NEXT &&
!(ctx->base.pc_next & ~TARGET_PAGE_MASK)) {
ctx->base.is_jmp = DISAS_TOO_MANY;
}
translator_loop_temp_check(&ctx->base);
}