> Well, I've just checked: no HPET setting available in this BIOS.
> Is there any software workaround for this?
Well, I guess it could be fixed in the xen hypervisor, if we somehow
could detect that xen's PIT platform timer has changed the
frequency of timer interrupts.
My Toshiba Tecra S1 notebook was messing up the PIT timer, too.
When dom0 enables ACPI mode on the Tecra S1, the frequency of
the PIT timer is changed, and the timer is stopped! This resulted in
the dom0 kernel hanging.
Reading the old thread for this issue...
http://www.opensolaris.org/jive/thread.jspa?messageID=147903
... is seems that other systems have this issue when the
dom0 starts using the USB controller hardware. Do you use USB
devices on your system? If you don't need USB, an interesting
experiment would be to boot dom0 with the ehci and/or ohci and/or
uhci driver disabled, and see if that fixes the time issues for dom0.
To disable the usb driver, start the dom0 kernel with the option
-B disable-ehci=true,disable-ohci=true,disable-uhci=true
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