On Thu, Jan 27, 2011 at 02:10:00PM +0100, Jan Kiszka wrote:
> Introduce qemu_cpu_kick_self to send SIG_IPI to the calling VCPU
> context. First user will be kvm.
>
> Signed-off-by: Jan Kiszka <jan.kiszka@xxxxxxxxxxx>
> ---
> cpus.c | 21 +++++++++++++++++++++
> qemu-common.h | 1 +
> 2 files changed, 22 insertions(+), 0 deletions(-)
>
> diff --git a/cpus.c b/cpus.c
> index bba59e5..88bed4e 100644
> --- a/cpus.c
> +++ b/cpus.c
> @@ -531,6 +531,17 @@ void qemu_cpu_kick(void *env)
> return;
> }
>
> +void qemu_cpu_kick_self(void)
> +{
> +#ifndef _WIN32
> + assert(cpu_single_env);
> +
> + raise(SIG_IPI);
> +#else
> + abort();
> +#endif
> +}
> +
> void qemu_notify_event(void)
> {
> CPUState *env = cpu_single_env;
> @@ -808,6 +819,16 @@ void qemu_cpu_kick(void *_env)
> }
> }
>
> +void qemu_cpu_kick_self(void)
> +{
> + assert(cpu_single_env);
> +
> + if (!cpu_single_env->thread_kicked) {
> + qemu_thread_signal(cpu_single_env->thread, SIG_IPI);
> + cpu_single_env->thread_kicked = true;
> + }
> +}
> +
There is no need to use cpu_single_env, can pass CPUState instead.
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