Il 05/02/2014 17:54, Stefano Stabellini ha scritto:
> I'm not sure how this is related to fw_cfg? fw_cfg is just a simple key-value
> store. If hvmloader doesn't use it, it should be a burden.
I was referring to the fact that QEMU might not have all the info that
need to be written to fw_cfg when running on Xen: some of the info might
be in the hypervisor and some other in another QEMU instance.
Or do you think that fw_cfg could be written by multiple entities
simultaneously?
Wouldn't it be possible to fetch the necessary information via
hypercalls or in xenstore?
It's possible that some particular fw_cfg entries will be skipped for
Xen, but most of them should apply. fw_cfg support would also make it
possible to use -kernel/-initrd in Xen HVM machines, for example.
Paolo
