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xen-devel
Re: [Xen-devel] [PATCH] xl: tsc_mode parameter in guest configuration fi
On 29/03/10 20:49, Dan Magenheimer wrote:
Thanks Eric!
Sorry I didn't mention this earlier, but I just remembered it.
For some of the tsc_mode's to work properly, tsc_mode AND
additional tsc information must be preserved across a
save/restore/migration. Also, the no_migrate config option has
an indirect impact on tsc_mode; with no_migrate specified
certain guests will be able to use tsc as their primary
clocksource, which can be much faster. (IOW, implementing
no_migrate is not a requirement, but may be worthwhile.)
it seems that the tsc information are automatically save by xenguest
saving code, and embedded in the save image.
--
Vincent
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