[v3,8/8] plugins: extract cpu_index generate

Commit Message

Pierrick Bouvier March 25, 2024, 12:41 p.m. UTC

Signed-off-by: Pierrick Bouvier <[e-mail]>
---
 accel/tcg/plugin-gen.c | 28 +++++++++++++---------------
 1 file changed, 13 insertions(+), 15 deletions(-)

Comments

Richard Henderson March 25, 2024, 7:19 p.m. UTC | #1

On 3/25/24 02:41, Pierrick Bouvier wrote:
> Signed-off-by: Pierrick Bouvier<[e-mail]>
> ---
>   accel/tcg/plugin-gen.c | 28 +++++++++++++---------------
>   1 file changed, 13 insertions(+), 15 deletions(-)

Reviewed-by: Richard Henderson <[e-mail]>

r~

Patch

diff --git a/accel/tcg/plugin-gen.c b/accel/tcg/plugin-gen.c
index 16618adf1bc..e6fd6fdfae5 100644
--- a/accel/tcg/plugin-gen.c
+++ b/accel/tcg/plugin-gen.c
@@ -108,12 +108,17 @@  static void gen_disable_mem_helper(void)
                    offsetof(ArchCPU, env));
 }
 
+static TCGv_i32 gen_cpu_index(void)
+{
+    TCGv_i32 cpu_index = tcg_temp_ebb_new_i32();
+    tcg_gen_ld_i32(cpu_index, tcg_env,
+                   -offsetof(ArchCPU, env) + offsetof(CPUState, cpu_index));
+    return cpu_index;
+}
+
 static void gen_udata_cb(struct qemu_plugin_regular_cb *cb)
 {
-    TCGv_i32 cpu_index = tcg_temp_ebb_new_i32();
-
-    tcg_gen_ld_i32(cpu_index, tcg_env,
-                   -offsetof(ArchCPU, env) + offsetof(CPUState, cpu_index));
+    TCGv_i32 cpu_index = gen_cpu_index();
     tcg_gen_call2(cb->f.vcpu_udata, cb->info, NULL,
                   tcgv_i32_temp(cpu_index),
                   tcgv_ptr_temp(tcg_constant_ptr(cb->userp)));
@@ -128,9 +133,7 @@  static TCGv_ptr gen_plugin_u64_ptr(qemu_plugin_u64 entry)
     char *base_ptr = arr->data + entry.offset;
     size_t entry_size = g_array_get_element_size(arr);
 
-    TCGv_i32 cpu_index = tcg_temp_ebb_new_i32();
-    tcg_gen_ld_i32(cpu_index, tcg_env,
-                   -offsetof(ArchCPU, env) + offsetof(CPUState, cpu_index));
+    TCGv_i32 cpu_index = gen_cpu_index();
     tcg_gen_muli_i32(cpu_index, cpu_index, entry_size);
     tcg_gen_ext_i32_ptr(ptr, cpu_index);
     tcg_temp_free_i32(cpu_index);
@@ -163,7 +166,6 @@  static TCGCond plugin_cond_to_tcgcond(enum qemu_plugin_cond cond)
 static void gen_udata_cond_cb(struct qemu_plugin_conditional_cb *cb)
 {
     TCGv_ptr ptr = gen_plugin_u64_ptr(cb->entry);
-    TCGv_i32 cpu_index = tcg_temp_ebb_new_i32();
     TCGv_i64 val = tcg_temp_ebb_new_i64();
     TCGLabel *after_cb = gen_new_label();
 
@@ -172,15 +174,14 @@  static void gen_udata_cond_cb(struct qemu_plugin_conditional_cb *cb)
 
     tcg_gen_ld_i64(val, ptr, 0);
     tcg_gen_brcondi_i64(cond, val, cb->imm, after_cb);
-    tcg_gen_ld_i32(cpu_index, tcg_env,
-                   -offsetof(ArchCPU, env) + offsetof(CPUState, cpu_index));
+    TCGv_i32 cpu_index = gen_cpu_index();
     tcg_gen_call2(cb->f.vcpu_udata, cb->info, NULL,
                   tcgv_i32_temp(cpu_index),
                   tcgv_ptr_temp(tcg_constant_ptr(cb->userp)));
+    tcg_temp_free_i32(cpu_index);
     gen_set_label(after_cb);
 
     tcg_temp_free_i64(val);
-    tcg_temp_free_i32(cpu_index);
     tcg_temp_free_ptr(ptr);
 }
 
@@ -212,10 +213,7 @@  static void gen_inline_store_u64_cb(struct qemu_plugin_inline_cb *cb)
 static void gen_mem_cb(struct qemu_plugin_regular_cb *cb,
                        qemu_plugin_meminfo_t meminfo, TCGv_i64 addr)
 {
-    TCGv_i32 cpu_index = tcg_temp_ebb_new_i32();
-
-    tcg_gen_ld_i32(cpu_index, tcg_env,
-                   -offsetof(ArchCPU, env) + offsetof(CPUState, cpu_index));
+    TCGv_i32 cpu_index = gen_cpu_index();
     tcg_gen_call4(cb->f.vcpu_mem, cb->info, NULL,
                   tcgv_i32_temp(cpu_index),
                   tcgv_i32_temp(tcg_constant_i32(meminfo)),