youhongyu
2007-Jun-29 02:56 UTC
[Xen-users] when and how to modify xen paravirtualized guest os kernel after install it by virt-manager?
hi all, it is said that paravirtualized virtual machine need a modified kernel, isn't this true? i install fc7 as a guest os by virtual-manager in xen mode, but no where have noticed me to do any modification with guest os kernel, why? thank to all youhongyu 20070629 _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
Nico Kadel-Garcia
2007-Jun-29 08:17 UTC
Re: [Xen-users] when and how to modify xen paravirtualized guest os kernel after install it by virt-manager?
youhongyu wrote:> hi all, > > it is said that paravirtualized virtual machine need a modified kernel, isn''t this true? > i install fc7 as a guest os by virtual-manager in xen mode, but no where have noticed me to do any modification with guest os kernel, why? > > thank to all > > youhongyu > 20070629virt-manager picks an appropriate kernel-xen or kernel-xenU automagically under RHEL and Fedora Core. It''s called "kernel-xenU" for older distributions, more recent ones use the same kernel-xen for Dom0 and DomU. _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
Javier Guerra Giraldez
2007-Jun-30 00:41 UTC
Re: [Xen-users] when and how to modify xen paravirtualized guest os kernel after install it by virt-manager?
youhongyu wrote:> it is said that paravirtualized virtual machine need a modified kernel, isn''t this true? > i install fc7 as a guest os by virtual-manager in xen mode, but no where have noticed me to do any modification with guest os kernel, why?the ''modified kernel'' refers to patching the kernel to make it xen-aware. i think the word ''modifications'' misleads non-developer people to think about some simple, mechanical changes, when in fact it''s a rewriting of some very low-level routines. the xen developers maintain the patches for linux; there''s equivalent patches for BSD and Solaris, on different levels of support. virt-manager sets up a xen-aware kernel for DomU''s, probably the same used by Dom0 (which has to have the same patches to even boot). -- Javier _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users