> > > > [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