Commit 373b259b authored by Stafford Horne's avatar Stafford Horne
Browse files

openrisc: Only kick cpu on timeout, not on update 



Previously we were kicking the cpu on every update.  This caused
problems noticeable in SMP configurations where one CPU got pinned
continuously servicing timer exceptions.

Reviewed-by: default avatarRichard Henderson <richard.henderson@linaro.org>
Signed-off-by: default avatarStafford Horne <shorne@gmail.com>
parent 13f1c773

hw/openrisc/cputimer.c

+1 −1
Original line number Diff line number Diff line
@@ -78,7 +78,6 @@ void cpu_openrisc_timer_update(OpenRISCCPU *cpu) 
    }

    next = now + (uint64_t)wait * TIMER_PERIOD;

    timer_mod(cpu->env.timer, next);

    qemu_cpu_kick(CPU(cpu));

}



void cpu_openrisc_count_start(OpenRISCCPU *cpu)
@@ -120,6 +119,7 @@ static void openrisc_timer_cb(void *opaque) 
    }



    cpu_openrisc_timer_update(cpu);

    qemu_cpu_kick(CPU(cpu));

}



static const VMStateDescription vmstate_or1k_timer = {