Commit 5ce46cb3 authored by Eduardo Habkost's avatar Eduardo Habkost
Browse files

cpu: cpu_by_arch_id() helper 



The helper can be used for CPU object lookup using the CPU's
arch-specific ID (the one returned by CPUClass::get_arch_id()).

Signed-off-by: default avatarEduardo Habkost <ehabkost@redhat.com>
[Yi Wang: Added documentation comments]
Signed-off-by: default avatarYi Wang <wang.yi59@zte.com.cn>
Signed-off-by: default avatarYun Liu <liu.yunh@zte.com.cn>
[ehabkost: extracted cpu_by_arch_id() to a separate patch]
Signed-off-by: default avatarEduardo Habkost <ehabkost@redhat.com>
parent 3beacfb9

include/qom/cpu.h

+10 −0
Original line number Diff line number Diff line
@@ -754,6 +754,16 @@ CPUState *qemu_get_cpu(int index); 
 */

bool cpu_exists(int64_t id);



/**

 * cpu_by_arch_id:

 * @id: Guest-exposed CPU ID of the CPU to obtain.

 *

 * Get a CPU with matching @id.

 *

 * Returns: The CPU or %NULL if there is no matching CPU.

 */

CPUState *cpu_by_arch_id(int64_t id);



/**

 * cpu_throttle_set:

 * @new_throttle_pct: Percent of sleep time. Valid range is 1 to 99.

qom/cpu.c

+8 −3
Original line number Diff line number Diff line
@@ -34,7 +34,7 @@ 


CPUInterruptHandler cpu_interrupt_handler;



bool cpu_exists(int64_t id)

CPUState *cpu_by_arch_id(int64_t id)

{

    CPUState *cpu;
@@ -42,10 +42,15 @@ bool cpu_exists(int64_t id) 
        CPUClass *cc = CPU_GET_CLASS(cpu);



        if (cc->get_arch_id(cpu) == id) {

            return true;

            return cpu;

        }

    }

    return false;

    return NULL;

}



bool cpu_exists(int64_t id)

{

    return !!cpu_by_arch_id(id);

}



CPUState *cpu_generic_init(const char *typename, const char *cpu_model)