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-rw-r--r--accel/tcg/plugin-gen.c30
-rw-r--r--tcg/tcg.c11
2 files changed, 17 insertions, 24 deletions
diff --git a/accel/tcg/plugin-gen.c b/accel/tcg/plugin-gen.c
index b54494712a..54b08ffc9e 100644
--- a/accel/tcg/plugin-gen.c
+++ b/accel/tcg/plugin-gen.c
@@ -305,28 +305,32 @@ static void plugin_gen_inject(struct qemu_plugin_tb *plugin_tb)
bool plugin_gen_tb_start(CPUState *cpu, const DisasContextBase *db)
{
- bool ret = false;
+ struct qemu_plugin_tb *ptb;
- if (test_bit(QEMU_PLUGIN_EV_VCPU_TB_TRANS, cpu->plugin_state->event_mask)) {
- struct qemu_plugin_tb *ptb = tcg_ctx->plugin_tb;
+ if (!test_bit(QEMU_PLUGIN_EV_VCPU_TB_TRANS,
+ cpu->plugin_state->event_mask)) {
+ return false;
+ }
+
+ tcg_ctx->plugin_db = db;
+ tcg_ctx->plugin_insn = NULL;
+ ptb = tcg_ctx->plugin_tb;
- /* reset callbacks */
+ if (ptb) {
+ /* Reset callbacks */
if (ptb->cbs) {
g_array_set_size(ptb->cbs, 0);
}
ptb->n = 0;
-
- ret = true;
-
ptb->mem_helper = false;
-
- tcg_gen_plugin_cb(PLUGIN_GEN_FROM_TB);
+ } else {
+ ptb = g_new0(struct qemu_plugin_tb, 1);
+ tcg_ctx->plugin_tb = ptb;
+ ptb->insns = g_ptr_array_new();
}
- tcg_ctx->plugin_db = db;
- tcg_ctx->plugin_insn = NULL;
-
- return ret;
+ tcg_gen_plugin_cb(PLUGIN_GEN_FROM_TB);
+ return true;
}
void plugin_gen_insn_start(CPUState *cpu, const DisasContextBase *db)
diff --git a/tcg/tcg.c b/tcg/tcg.c
index 71daa5d268..34e3056380 100644
--- a/tcg/tcg.c
+++ b/tcg/tcg.c
@@ -761,14 +761,6 @@ QEMU_BUILD_BUG_ON((int)(offsetof(CPUNegativeOffsetState, tlb.f[0]) -
< MIN_TLB_MASK_TABLE_OFS);
#endif
-static void alloc_tcg_plugin_context(TCGContext *s)
-{
-#ifdef CONFIG_PLUGIN
- s->plugin_tb = g_new0(struct qemu_plugin_tb, 1);
- s->plugin_tb->insns = g_ptr_array_new();
-#endif
-}
-
/*
* All TCG threads except the parent (i.e. the one that called tcg_context_init
* and registered the target's TCG globals) must register with this function
@@ -813,7 +805,6 @@ void tcg_register_thread(void)
qatomic_set(&tcg_ctxs[n], s);
if (n > 0) {
- alloc_tcg_plugin_context(s);
tcg_region_initial_alloc(s);
}
@@ -1360,8 +1351,6 @@ static void tcg_context_init(unsigned max_cpus)
indirect_reg_alloc_order[i] = tcg_target_reg_alloc_order[i];
}
- alloc_tcg_plugin_context(s);
-
tcg_ctx = s;
/*
* In user-mode we simply share the init context among threads, since we