[Qemu-devel] PXA2xx system_reset command

[Vijay Kumar B.]

Hi Everyone,

We would like to add support for resetting the PXA2xx when the user 
invokes the system_reset command. What would be the best way to 
implement this? The PXA2xx emulation has a callback registered for the 
reset IRQ, which does a CPU reset. The callback is shown below. This 
gets invoked when the corresponding GPIO is toggled. (Not sure how one 
will toggle the GPIO though).

static void pxa2xx_reset(void *opaque, int line, int level)
{
    PXA2xxState *s = (PXA2xxState *) opaque;

    if (level && (s->pm_regs[PCFR >> 2] & 0x10)) {    /* GPR_EN */
        cpu_reset(CPU(s->cpu));
        /* TODO: reset peripherals */
    }
}

We would like to do something similar for the system_reset command. 
Would it be sufficient to do the same by registering a callback using 
qemu_register_reset()?

Regards,

Vijay