On Thu, Jul 31, 2008 at 8:08 PM, Jeremy Fitzhardinge <jeremy@xxxxxxxx> wrote: > Grant McWilliams wrote: >> >> >> > Fedora 9's kernel-xen package has been based on the mainline >> kernel from >> > the outset, but it is still packaged as a separate kernel. >> kernel-xen >> > has been dropped from rawhide (what will become Fedora 10), and >> all Xen >> > support - both 32 and 64 bit - has been rolled into the main kernel >> > package. >> >> >> Does this mean in the future all Fedora kernels will be Xen kernels? >> Is this wise? If I try to run VirtualBox on a Xen kernel the machine >> will reboot. If the Vbox module is loaded at runtime it will reboot >> forever. Yes, I know it's a Vbox issue but what about KVM. Can we run >> KVM on a Xen kernel? >> >> Or am I reading this completely wrong? > > If you boot the kernel on bare hardware, the Xen parts of the kernel > will basically be switched off, and play no part in runtime. All > hardware features and device drivers should be available as normal. I > run kvm on pvops/xen kernels all the time. > > If you boot the kernel under Xen, then VT/SVM will not be available, and > any kernel module which tries to use them - like kvm or (I presume) > virtualbox - should quietly get out of the way. If they cause the > domain to crash, then that's a bug in those modules. > > If by "the machine will reboot" you mean that the whole system crashes, > then that's definitely a bug in Xen which should be fixed. It should > never be possible for a domU to crash the system. > > J > _______________________________________________ > Virtualization mailing list > Virtualization@xxxxxxxxxxxxxxxxxxxxxxxxxx > https://lists.linux-foundation.org/mailman/listinfo/virtualization > Jeremy: Mr. Grant speaking about the future where Linux (2.6.28?) mainline kernel will support Xen Dom0, not kernel 2.6.27, which only improves Xen DomU. And I agree with Grant, that if Linux mainline will have Dom0 included, that may cause problems for all kinds of drivers. As for 2.6.27, it shouldn't cause any new problems. -- -Alexey Eromenko "Technologov" _______________________________________________ Virtualization mailing list Virtualization@xxxxxxxxxxxxxxxxxxxxxxxxxx https://lists.linux-foundation.org/mailman/listinfo/virtualization
