Re: [Qemu-devel] [PATCH 03/10] S390: Check Bootdevice Type

[Christian Borntraeger]

On 26/04/13 17:48, Alexander Graf wrote:

>> So I suggest to go with this patch and implement later on what we
>> agree upon?
> 
> I don't see how having "first device we find" is any better than a 
> rushed interface we need to agree on right before 1.5 hard freeze. 

Exactly, find first device isnt better ;-)
See, the current code chooses the first subchannel that matches. This
boils down to "a random disk" as soon as you have more than one.

With this patch the user can at least specify the devno of the disk.It
even works out of the box with libvirt.

Let's just release 1.5 with the very simple one and then go for something 
awesome in the next version.

Exactly - and having a list is more in the awesome area. Beiing able to
specify the first disk and pass that in a register to the bios is of
course not a full-features interface, but it works and can be changed.

Just to double check: do you agree that we can change the interface between
ipl device and bios at any time?

Christian