| Message ID | 20240428221450.26460-7-philmd@linaro.org (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | exec: Rework around CPUState user fields (part 2) | expand |
On 4/28/24 15:14, Philippe Mathieu-Daudé wrote: > Introduce a per-accelerator handler that can be call > when a vCPU exits. > > Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org> > --- > include/sysemu/accel-ops.h | 1 + > system/cpus.c | 3 +++ > 2 files changed, 4 insertions(+) Reviewed-by: Richard Henderson <richard.henderson@linaro.org> r~ > > diff --git a/include/sysemu/accel-ops.h b/include/sysemu/accel-ops.h > index ef91fc28bb..35dfb7e266 100644 > --- a/include/sysemu/accel-ops.h > +++ b/include/sysemu/accel-ops.h > @@ -35,6 +35,7 @@ struct AccelOpsClass { > void (*create_vcpu_thread)(CPUState *cpu); /* MANDATORY NON-NULL */ > void (*kick_vcpu_thread)(CPUState *cpu); > bool (*cpu_thread_is_idle)(CPUState *cpu); > + void (*exit_vcpu_thread)(CPUState *cpu); > > void (*synchronize_post_reset)(CPUState *cpu); > void (*synchronize_post_init)(CPUState *cpu); > diff --git a/system/cpus.c b/system/cpus.c > index e0530ad603..d0d585e8b9 100644 > --- a/system/cpus.c > +++ b/system/cpus.c > @@ -425,6 +425,9 @@ void cpu_exit(CPUState *cpu) > /* Ensure cpu_exec will see the exit request after TCG has exited. */ > smp_wmb(); > qatomic_set(&cpu->neg.icount_decr.u16.high, -1); > + if (cpus_accel->exit_vcpu_thread) { > + cpus_accel->exit_vcpu_thread(cpu); > + } > } > > static void qemu_cpu_stop(CPUState *cpu, bool exit)
diff --git a/include/sysemu/accel-ops.h b/include/sysemu/accel-ops.h index ef91fc28bb..35dfb7e266 100644 --- a/include/sysemu/accel-ops.h +++ b/include/sysemu/accel-ops.h @@ -35,6 +35,7 @@ struct AccelOpsClass { void (*create_vcpu_thread)(CPUState *cpu); /* MANDATORY NON-NULL */ void (*kick_vcpu_thread)(CPUState *cpu); bool (*cpu_thread_is_idle)(CPUState *cpu); + void (*exit_vcpu_thread)(CPUState *cpu); void (*synchronize_post_reset)(CPUState *cpu); void (*synchronize_post_init)(CPUState *cpu); diff --git a/system/cpus.c b/system/cpus.c index e0530ad603..d0d585e8b9 100644 --- a/system/cpus.c +++ b/system/cpus.c @@ -425,6 +425,9 @@ void cpu_exit(CPUState *cpu) /* Ensure cpu_exec will see the exit request after TCG has exited. */ smp_wmb(); qatomic_set(&cpu->neg.icount_decr.u16.high, -1); + if (cpus_accel->exit_vcpu_thread) { + cpus_accel->exit_vcpu_thread(cpu); + } } static void qemu_cpu_stop(CPUState *cpu, bool exit)
Introduce a per-accelerator handler that can be call when a vCPU exits. Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org> --- include/sysemu/accel-ops.h | 1 + system/cpus.c | 3 +++ 2 files changed, 4 insertions(+)