[Qemu-devel] Re: [PATCH] CMOS file support

[Paolo Bonzini]

On 09/22/2010 09:43 PM, Mathias Krause wrote:
> I managed to add the nvram option but how do I get a reference to the
> drive back in the RTC code? Would I just loop with drive_get(IF_NONE, 0,
> i) until the id of the returned drive is "nvram"? Doesn't sound right
> but I've found no better solution due to the lack of an
> drive_get_by_id() function.

You can write one. :)  It's going to be very similar to 
drive_get_by_blockdev.

Paolo