[PULL 21/38] accel/nvmm: Use accel-specific per-vcpu @dirty field

["Philippe Mathieu-Daudé" <philmd@linaro.org>]

NVMM has a specific use of the CPUState::vcpu_dirty field
(CPUState::vcpu_dirty is not used by common code).
To make this field accel-specific, add and use a new
@dirty variable in the AccelCPUState structure.

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20240424174506.326-3-philmd@linaro.org>
---
 target/i386/nvmm/nvmm-all.c | 21 +++++++++++----------
 1 file changed, 11 insertions(+), 10 deletions(-)

diff --git a/target/i386/nvmm/nvmm-all.c b/target/i386/nvmm/nvmm-all.c
index 49a3a3b916..f9cced53b3 100644
--- a/target/i386/nvmm/nvmm-all.c
+++ b/target/i386/nvmm/nvmm-all.c
@@ -30,6 +30,7 @@ struct AccelCPUState {
     struct nvmm_vcpu vcpu;
     uint8_t tpr;
     bool stop;
+    bool dirty;
 
     /* Window-exiting for INTs/NMIs. */
     bool int_window_exit;
@@ -507,7 +508,7 @@ nvmm_io_callback(struct nvmm_io *io)
     }
 
     /* Needed, otherwise infinite loop. */
-    current_cpu->vcpu_dirty = false;
+    current_cpu->accel->dirty = false;
 }
 
 static void
@@ -516,7 +517,7 @@ nvmm_mem_callback(struct nvmm_mem *mem)
     cpu_physical_memory_rw(mem->gpa, mem->data, mem->size, mem->write);
 
     /* Needed, otherwise infinite loop. */
-    current_cpu->vcpu_dirty = false;
+    current_cpu->accel->dirty = false;
 }
 
 static struct nvmm_assist_callbacks nvmm_callbacks = {
@@ -726,9 +727,9 @@ nvmm_vcpu_loop(CPUState *cpu)
      * Inner VCPU loop.
      */
     do {
-        if (cpu->vcpu_dirty) {
+        if (cpu->accel->dirty) {
             nvmm_set_registers(cpu);
-            cpu->vcpu_dirty = false;
+            cpu->accel->dirty = false;
         }
 
         if (qcpu->stop) {
@@ -826,32 +827,32 @@ static void
 do_nvmm_cpu_synchronize_state(CPUState *cpu, run_on_cpu_data arg)
 {
     nvmm_get_registers(cpu);
-    cpu->vcpu_dirty = true;
+    cpu->accel->dirty = true;
 }
 
 static void
 do_nvmm_cpu_synchronize_post_reset(CPUState *cpu, run_on_cpu_data arg)
 {
     nvmm_set_registers(cpu);
-    cpu->vcpu_dirty = false;
+    cpu->accel->dirty = false;
 }
 
 static void
 do_nvmm_cpu_synchronize_post_init(CPUState *cpu, run_on_cpu_data arg)
 {
     nvmm_set_registers(cpu);
-    cpu->vcpu_dirty = false;
+    cpu->accel->dirty = false;
 }
 
 static void
 do_nvmm_cpu_synchronize_pre_loadvm(CPUState *cpu, run_on_cpu_data arg)
 {
-    cpu->vcpu_dirty = true;
+    cpu->accel->dirty = true;
 }
 
 void nvmm_cpu_synchronize_state(CPUState *cpu)
 {
-    if (!cpu->vcpu_dirty) {
+    if (!cpu->accel->dirty) {
         run_on_cpu(cpu, do_nvmm_cpu_synchronize_state, RUN_ON_CPU_NULL);
     }
 }
@@ -981,7 +982,7 @@ nvmm_init_vcpu(CPUState *cpu)
         }
     }
 
-    cpu->vcpu_dirty = true;
+    cpu->accel->dirty = true;
     cpu->accel = qcpu;
 
     return 0;
-- 
2.41.0