From e7face702ac1e98109dbfde557e7974ea04a295d Mon Sep 17 00:00:00 2001 From: Richard Henderson Date: Sat, 6 Apr 2024 10:42:10 -1000 Subject: [PATCH] accel/tcg: Add insn_start to DisasContextBase MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit This is currently target-specific for many; begin making it target independent. Tested-by: Jørgen Hansen Reviewed-by: Philippe Mathieu-Daudé Signed-off-by: Richard Henderson --- accel/tcg/translator.c | 2 ++ include/exec/translator.h | 3 +++ 2 files changed, 5 insertions(+) diff --git a/accel/tcg/translator.c b/accel/tcg/translator.c index 38c34009a5..ae61c154c2 100644 --- a/accel/tcg/translator.c +++ b/accel/tcg/translator.c @@ -140,6 +140,7 @@ void translator_loop(CPUState *cpu, TranslationBlock *tb, int *max_insns, db->max_insns = *max_insns; db->singlestep_enabled = cflags & CF_SINGLE_STEP; db->saved_can_do_io = -1; + db->insn_start = NULL; db->host_addr[0] = host_pc; db->host_addr[1] = NULL; @@ -157,6 +158,7 @@ void translator_loop(CPUState *cpu, TranslationBlock *tb, int *max_insns, while (true) { *max_insns = ++db->num_insns; ops->insn_start(db, cpu); + db->insn_start = tcg_last_op(); tcg_debug_assert(db->is_jmp == DISAS_NEXT); /* no early exit */ if (plugin_enabled) { diff --git a/include/exec/translator.h b/include/exec/translator.h index 51624feb10..ceaeca8c91 100644 --- a/include/exec/translator.h +++ b/include/exec/translator.h @@ -74,6 +74,8 @@ typedef enum DisasJumpType { * @singlestep_enabled: "Hardware" single stepping enabled. * @saved_can_do_io: Known value of cpu->neg.can_do_io, or -1 for unknown. * @plugin_enabled: TCG plugin enabled in this TB. + * @insn_start: The last op emitted by the insn_start hook, + * which is expected to be INDEX_op_insn_start. * * Architecture-agnostic disassembly context. */ @@ -87,6 +89,7 @@ typedef struct DisasContextBase { bool singlestep_enabled; int8_t saved_can_do_io; bool plugin_enabled; + struct TCGOp *insn_start; void *host_addr[2]; } DisasContextBase;