Re: [Qemu-devel] block composite driver and partition driver

[Douglas McClendon]

address@hidden wrote:
> I've finally gotten around to working on my multipart driver again.

Why?  I'm new to the list.  Can you elaborate what sorts of things this 
would be used for?  I haven't yet gotten around to writing my per device 
snapshot enablable/specifiable COW tmpfiles patch.  But your code, while 
I have no clue how it might be used, seems like it might interrelate 
with that (or if not, I'm still curious).

-dmc

> block-composite.c is the basic low level composite image format, which lets you
> use a bunch of disk images as a single image.
>
> block-ram.c is a ram block device, with the size of the "image" given in the
> number of disk sectors.
>
> block-partition.c is a partition block device that uses the composite driver
> to combine partitions together along with a fake mbr that it generates and
> stores inside of a ram block device. (It doesn't work yet - for some reason the
> number of cylinders being reported to the guest OS is 0.)
>
> --
> Infinite complexity begets infinite beauty.
> Infinite precision begets infinite perfection.