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xen-devel
Re: [Xen-devel] [PATCHl] localtime basis for paravirtualized guests
On 21 Jun 2006, at 16:49, Keir Fraser wrote:
- this is a different mechanism than the one used to set time
offsets for fully virtualized guests. At the lowest levels, this is
probably difficult to avoid. Higher up, though, it would be nice if
this type of capability didn't look/act and be controlled
differently. The differences between fully and para virtualized
systems should disappear the higher into the control logic you go.
Were you able to give any thought on how to merge the models ?
The 'support' for full-virt guests is *only* a qemu patch right now.
No tools integration at all. Integration would have to be in xend, as
it is xend which kicks off the qemu-dm process for HVM guests. Setting
the 'timeoffset' based on the localtime config option wouldn't be very
hard, and would unify that new option across PV and HVM guests.
Patches welcome (and moving the logic to work out what the time offset
should be from xc.c into xend itself would be nice).
Also, RTC emulation really belongs in Xen anyway, so it'll be possible
to unify at the dom0_op level at that point.
-- Keir
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