> > > > [root@fedora ~]# cat /proc/ioports
> > > > [ ... ]
> > > > afe0-afe3 : ACPI GPE0_BLK
> > > > b010-b015 : ACPI CPU throttle
> > > > b100-b10f : 0000:00:01.3
> > > > b100-b107 : piix4_smbus
> > > > e400-e43f : 0000:00:01.3
> > > > e400-e403 : ACPI PM1a_EVT_BLK
> > > > e404-e405 : ACPI PM1a_CNT_BLK
> > > > e408-e40b : ACPI PM_TMR
> > > >
> > > > "ACPI CPU throttle" looks wrong, probably hardcoded to 0xb010 instead of
> > > > pmbase+0x10.
> > >
> > > Hmm hardcoded where? Do you know where this comes from?
> >
> > [root@fedora acpi]# grep -i b010 *.dsl
> > SSDT.dsl: Processor (CP00, 0x00, 0x0000B010, 0x06)
> >
> > cheers,
> > Gerd
> Sorry I wasn't clear.
> Where *should* the value come from?
> Does QEMU have any hardware at that address?
It is part of the piix4 acpi bar, with seabios it looks like this:
b000-b03f : 0000:00:01.3
b000-b003 : ACPI PM1a_EVT_BLK
b004-b005 : ACPI PM1a_CNT_BLK
b008-b00b : ACPI PM_TMR
b010-b015 : ACPI CPU throttle
I don't think we have virtual cpu throttling, as far I know nothing in
qemu does actually listens at that address. Maybe the CorrectThing[tm]
to do would be passing 0 there (not fully sure how to express "no power
management here" in acpi).
cheers,
Gerd
