[PATCH v7 13/40] accel/tcg: Implement AccelOpsClass::has_work()

[Philippe Mathieu-Daudé]

All accelerators but TCG implement their AccelOpsClass::has_work()
handler, meaning all the remaining CPUClass::has_work() ones are
only reachable from TCG accelerator; and these has_work() handlers
belong to TCGCPUOps.

We will gradually move each target CPUClass::has_work() to
TCGCPUOps in the following commits.
For now, move the CPUClass::has_work() call to tcg_cpu_has_work(),
the TCG AccelOpsClass::has_work() implementation.

Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
---
 include/hw/core/cpu.h     |  2 +-
 accel/tcg/tcg-accel-ops.c | 11 +++++++++++
 softmmu/cpus.c            |  5 -----
 3 files changed, 12 insertions(+), 6 deletions(-)

diff --git a/include/hw/core/cpu.h b/include/hw/core/cpu.h
index e2dd171a13f..114eb3b9b2c 100644
--- a/include/hw/core/cpu.h
+++ b/include/hw/core/cpu.h
@@ -89,7 +89,7 @@ struct SysemuCPUOps;
  * instantiatable CPU type.
  * @parse_features: Callback to parse command line arguments.
  * @reset_dump_flags: #CPUDumpFlags to use for reset logging.
- * @has_work: Callback for checking if there is work to do.
+ * @has_work: Callback for checking if there is work to do. Only used by TCG.
  * @memory_rw_debug: Callback for GDB memory access.
  * @dump_state: Callback for dumping state.
  * @get_arch_id: Callback for getting architecture-dependent CPU ID.
diff --git a/accel/tcg/tcg-accel-ops.c b/accel/tcg/tcg-accel-ops.c
index 1a8e8390bd6..ebaacff1842 100644
--- a/accel/tcg/tcg-accel-ops.c
+++ b/accel/tcg/tcg-accel-ops.c
@@ -73,6 +73,16 @@ int tcg_cpus_exec(CPUState *cpu)
     return ret;
 }
 
+static bool tcg_cpu_has_work(CPUState *cpu)
+{
+    CPUClass *cc = CPU_GET_CLASS(cpu);
+
+    if (cc->has_work) {
+        return cc->has_work(cpu);
+    }
+    return false;
+}
+
 /* mask must never be zero, except for A20 change call */
 void tcg_handle_interrupt(CPUState *cpu, int mask)
 {
@@ -108,6 +118,7 @@ static void tcg_accel_ops_init(AccelOpsClass *ops)
         ops->kick_vcpu_thread = rr_kick_vcpu_thread;
         ops->handle_interrupt = tcg_handle_interrupt;
     }
+    ops->has_work = tcg_cpu_has_work;
 }
 
 static void tcg_accel_ops_class_init(ObjectClass *oc, void *data)
diff --git a/softmmu/cpus.c b/softmmu/cpus.c
index 5ffa02f9cef..bb16a25bcef 100644
--- a/softmmu/cpus.c
+++ b/softmmu/cpus.c
@@ -251,11 +251,6 @@ void cpu_interrupt(CPUState *cpu, int mask)
 
 bool cpu_has_work(CPUState *cpu)
 {
-    CPUClass *cc = CPU_GET_CLASS(cpu);
-
-    if (cc->has_work && cc->has_work(cpu)) {
-        return true;
-    }
     if (cpus_accel->has_work && cpus_accel->has_work(cpu)) {
         return true;
     }
-- 
2.31.1