[OpenBIOS] Back at it again( PCI Passthrough )
Jd Lyons
lyons_dj at yahoo.com
Mon May 7 18:08:04 CEST 2018
> On May 7, 2018, at 5:21 AM, Jd Lyons <lyons_dj at yahoo.com> wrote:
>
> Sorry, I wasn’t clear, no trouble executing this in Apple’s Open Firmware implementation. I’ve moved back to Openbios to see if I can get PCI Passthough working with Qumu-system-ppc.
>
> The host is an AMD B350 board running Debian 9. With a Geforce 6600 PCI-E card from a G5.
>
>
>
>> On May 6, 2018, at 10:25 PM, Joe van Tunen <joevt at shaw.ca> wrote:
>>
>> I'm not sure about QEMU. Jd Lyons is getting the exception using Apple's Open Firmware implementation on a Quicksilver PowerMac G4.
>>
>>
>> On 5/6/18, 5:21 PM, "OpenBIOS on behalf of Tarl Neustaedter" <openbios-bounces at openbios.org on behalf of tarl-b2 at tarl.net> wrote:
>>
>> For what it's worth:
>>
>> On 2018-May-6 20:12 , Joe van Tunen wrote:
>>> b(lit) 0xff
>>> and
>>> my-space
>>> +
>>> (unnamed-fcode) [0xa08]
>>> b(lit) 0x6
>>> and
>>> b(lit) 0x4
>>> =
>>
>> That sequence is probably testing a BAR for 64-bit capability. Bits 1-2
>> are the type of memory referenced by a BAR (0=IO, 1=32-bit mem, 2=64-bit
>> mem).
>>
>> https://en.wikipedia.org/wiki/PCI_configuration_space#Bus_enumeration
>>
>> Does QEMU do something funny with 64-bit BARs? An NVIDIA card is almost
>> certain to have 64-bit addressing in at least one BAR, and if QEMU
>> doesn't support it, bad things may be happening.
>>
>>
>> --
>> OpenBIOS http://openbios.org/
>> Mailinglist: http://lists.openbios.org/mailman/listinfo
>> Free your System - May the Forth be with you
>>
>>
>>
>>
>> --
>> OpenBIOS http://openbios.org/
>> Mailinglist: http://lists.openbios.org/mailman/listinfo
>> Free your System - May the Forth be with you
>
More information about the OpenBIOS
mailing list