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xen-devel
Re: [Xen-devel] doubt on domU segment mappings
Sandesh, le Mon 21 Jul 2008 22:43:13 +0530, a écrit :
> > > Once the domU is running how can i change them?
> >
> > What for?
> basically right after shutdown with poweroff = 'preserve' option i want
> to reboot the domU without having to going through the whole domain
> building process. So i need to load the different domU segments again,
> or at least the pt_base mapping.
Well the problem is that the domU most probably has destroyed it
completely already.
> > > like how will i know which entries in the dom0 pgtables corresponds to
> > > kernel_seg or ramdisk_seg and so on..
> >
> > Again, dom0 doesn't map them any more, it doesn't need them any more.
> then how will the domU kernel memory is accessed? are they mapped to the
> domU pg_tables?
Yes. No need for anybody else to access it (except PV interfaces, but
then the MFNs or grants are explicitely given by the domU).
Samuel
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