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[PATCH v5 10/23] target/ppc: Move page crossing check to ppc_tr_translat
From: |
matheus . ferst |
Subject: |
[PATCH v5 10/23] target/ppc: Move page crossing check to ppc_tr_translate_insn |
Date: |
Mon, 17 May 2021 17:50:12 -0300 |
From: Richard Henderson <richard.henderson@linaro.org>
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>
---
target/ppc/translate.c | 8 +++++---
1 file changed, 5 insertions(+), 3 deletions(-)
diff --git a/target/ppc/translate.c b/target/ppc/translate.c
index dc0f5fafc2..b1873d2dcc 100644
--- a/target/ppc/translate.c
+++ b/target/ppc/translate.c
@@ -9060,9 +9060,6 @@ 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);
}
}
@@ -9117,6 +9114,11 @@ static void ppc_tr_translate_insn(DisasContextBase
*dcbase, CPUState *cs)
handler->count++;
#endif
+ /* End the TB when crossing a page boundary. */
+ if (ctx->base.is_jmp == DISAS_NEXT && !(pc & ~TARGET_PAGE_MASK)) {
+ ctx->base.is_jmp = DISAS_TOO_MANY;
+ }
+
translator_loop_temp_check(&ctx->base);
}
--
2.25.1
- [PATCH v5 05/23] target/ppc: Move single-step check to ppc_tr_tb_stop, (continued)
- [PATCH v5 05/23] target/ppc: Move single-step check to ppc_tr_tb_stop, matheus . ferst, 2021/05/17
- [PATCH v5 06/23] target/ppc: Tidy exception vs exit_tb, matheus . ferst, 2021/05/17
- [PATCH v5 07/23] target/ppc: Mark helper_raise_exception* as noreturn, matheus . ferst, 2021/05/17
- [PATCH v5 08/23] target/ppc: Use translator_loop_temp_check, matheus . ferst, 2021/05/17
- [PATCH v5 09/23] target/ppc: Introduce macros to check isa extensions, matheus . ferst, 2021/05/17
- [PATCH v5 10/23] target/ppc: Move page crossing check to ppc_tr_translate_insn,
matheus . ferst <=
- [PATCH v5 11/23] target/ppc: Add infrastructure for prefixed insns, matheus . ferst, 2021/05/17
- [PATCH v5 12/23] target/ppc: Move ADDI, ADDIS to decodetree, implement PADDI, matheus . ferst, 2021/05/17
- [PATCH v5 13/23] target/ppc: Implement PNOP, matheus . ferst, 2021/05/17
- [PATCH v5 14/23] TCG: add tcg_constant_tl, matheus . ferst, 2021/05/17
- [PATCH v5 15/23] target/ppc: Move D/DS/X-form integer loads to decodetree, matheus . ferst, 2021/05/17