[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
[PATCH 2/9] accel/tcg: Add insn_start to DisasContextBase
From: |
Richard Henderson |
Subject: |
[PATCH 2/9] accel/tcg: Add insn_start to DisasContextBase |
Date: |
Sat, 6 Apr 2024 12:32:41 -1000 |
This is currently target-specific for many; begin making it
target independent.
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
---
include/exec/translator.h | 3 +++
accel/tcg/translator.c | 2 ++
2 files changed, 5 insertions(+)
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;
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) {
--
2.34.1
- [PATCH for-9.0? 0/9] accel/tcg: Fix can_do_io vs 2nd page mmio, Richard Henderson, 2024/04/06
- [PATCH 1/9] tcg: Add TCGContext.emit_before_op, Richard Henderson, 2024/04/06
- [PATCH 2/9] accel/tcg: Add insn_start to DisasContextBase,
Richard Henderson <=
- [PATCH 3/9] target/arm: Use insn_start from DisasContextBase, Richard Henderson, 2024/04/06
- [PATCH 4/9] target/hppa: Use insn_start from DisasContextBase, Richard Henderson, 2024/04/06
- [PATCH 5/9] target/i386: Preserve DisasContextBase.insn_start across rewind, Richard Henderson, 2024/04/06
- [PATCH 6/9] target/microblaze: Use insn_start from DisasContextBase, Richard Henderson, 2024/04/06