> Am 29.10.2013 um 17:00 schrieb Paolo Bonzini <pbonz...@redhat.com>: > > Il 29/10/2013 16:55, BALATON Zoltan ha scritto: >>> On Tue, 29 Oct 2013, Laszlo Ersek wrote: >>> I don't know what I'm talking about. But: >> >> Neither do I but... >> >>> - Windows' ACPI parser is super cranky. You could pass in a custom (but >>> standardized) ACPI table on the command line (-acpitable) that only >>> triggers some warnings in Linux's port of ACPICA, but crashes Windows >>> (BSOD). Like, write & compile a simple table to AML, then mess it up >>> (eg. Package encoding or some such) with a hex editor. This would take >>> some experimentation as well, but searching existing bug reports could >>> help. >> >> This seems evil and fragile (although this can be done without patches >> with a command line option only). But instead why not remove/disable >> some BIOS functions that Linux doesn't need but Windows relies on? This >> seems to be less fragile (although requiring a patch) if it's possible >> at all. > > Subtly crippling the HPET might work, since Linux will prefer kvmclock. > Good luck when users come screaming for support though. >
I think without hyper-v Windows will prefer the pmtimer. I will look at this it might work. Thanks for your ideas. Peter > Paolo