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[PULL,05/35] sysemu: Introduce AccelOpsClass::has_work()

Message ID 20210916153025.1944763-6-richard.henderson@linaro.org
State New
Headers show
Series tcg patch queue | expand

Commit Message

Richard Henderson Sept. 16, 2021, 3:29 p.m. UTC 
From: Philippe Mathieu-Daudé <f4bug@amsat.org>


Introduce an accelerator-specific has_work() handler.
Eventually call it from cpu_has_work().

Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>

Message-Id: <20210912172731.789788-5-f4bug@amsat.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

---
 include/sysemu/accel-ops.h | 5 +++++
 softmmu/cpus.c             | 3 +++
 2 files changed, 8 insertions(+)

-- 
2.25.1
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Patch

diff --git a/include/sysemu/accel-ops.h b/include/sysemu/accel-ops.h
index 032f6979d7..de83f095f2 100644
--- a/include/sysemu/accel-ops.h
+++ b/include/sysemu/accel-ops.h
@@ -31,6 +31,11 @@  struct AccelOpsClass {
     void (*create_vcpu_thread)(CPUState *cpu); /* MANDATORY NON-NULL */
     void (*kick_vcpu_thread)(CPUState *cpu);
 
+    /**
+     * @has_work: Callback for checking if there is work to do.
+     */
+    bool (*has_work)(CPUState *cpu);
+
     void (*synchronize_post_reset)(CPUState *cpu);
     void (*synchronize_post_init)(CPUState *cpu);
     void (*synchronize_state)(CPUState *cpu);
diff --git a/softmmu/cpus.c b/softmmu/cpus.c
index 7e2cb2c571..2a61dfd628 100644
--- a/softmmu/cpus.c
+++ b/softmmu/cpus.c
@@ -255,6 +255,9 @@  bool cpu_has_work(CPUState *cpu)
 {
     CPUClass *cc = CPU_GET_CLASS(cpu);
 
+    if (cpus_accel->has_work) {
+        return cpus_accel->has_work(cpu);
+    }
     g_assert(cc->has_work);
     return cc->has_work(cpu);
 }