On 12/21/2009 10:26 PM, Konrad Rzeszutek Wilk wrote:
Hey Harald and initramfs mailing list, I am working on de-coupling a lot of Xen modules from the PV-OPS kernel (git://git.kernel.org/pub/scm/linux/kernel/git/jeremy/xen.git) so that it is not neccessary to have them compiled in. I've gotten to the point that all of the drivers (fbfront, kbdfront, netfront, blkfront, pcifront) can be loaded on demand. Some of them can't be unloaded (still working on that). The next stage is to make the loading automatic, and detect if the kernel is running under Xen (PV) and if so load the neccesssary modules. To solve that, my thought was to: a) Write udev rules that would be act up if the kernel emitted such rules. But the kernel does not emit any uevents for this purpose and it does not emit any virtualization ones until the virtualization modules are loaded. I could write up code that would emit this information and be generic enough that it would do so for anything that uses the paravirt strutures. So basically a SysFS interface for the paravirt interface. b) Or utilize xen-detect and load the appropiate modules if we are running in Xen PV land. The second is by far much simpler but I don't know if more appropiate. I am attaching an example patch to demonstrate what I had in mind. (Caveat: I didn't include the pre-requisite for xen-tools yet). c). Another way? Any ideas would be much appreciated.
pushed until the kernel can autoload those modules -- To unsubscribe from this list: send the line "unsubscribe initramfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
