Re: [Qemu-devel] [PATCH v8 3/3] ich9: implement strap SPKR pin logic

[Paolo Bonzini]

On 02/07/2015 03:30, Paulo Alcantara wrote:
> No, the iTCO_wdt driver won't fail to start. It actually depends on
> whether RCBA BAR is set. However, ICH9 will just ignore whether
> NO_REBOOT is set or unset when SPKR pin is high.

This is the code I was referring to, in iTCO_wdt_start:

        /* disable chipset's NO_REBOOT bit */
        if (iTCO_wdt_unset_NO_REBOOT_bit()) {
                spin_unlock(&iTCO_wdt_private.io_lock);
                pr_err("failed to reset NO_REBOOT flag, reboot disabled by 
hardware/BIOS\n");
                return -EIO;
        }

Paolo