[SeaBIOS] [Qemu-devel] Test report for xen-unstable and qemu-xen

[Fabio Fantoni]

Il 14/08/2013 13:21, Michael S. Tsirkin ha scritto:
> On Wed, Aug 14, 2013 at 01:16:24PM +0200, Laszlo Ersek wrote:
>> On 08/14/13 12:54, Fabio Fantoni wrote:
>>> Il 14/08/2013 11:56, Laszlo Ersek ha scritto:
>>>> On 08/14/13 11:19, Fabio Fantoni wrote:
>>>>
>>>>> Tried with qemu 1.4.2 and it works also with 4 gb of ram.
>>>>> This ram regression seems to be introduced with qemu 1.5, and there is
>>>>> another regression more critical with qemu 1.6.
>>>> Can you save qemu's stderr for the 1.5->1.6 regression?
>>>>
>>>>> Tried to add seabios debug options to domU xl configuration file...
>>>>>
>>>>> device_model_args=["-chardev
>>>>> stdio,id=seabios","-device","isa-debugcon,iobase=0x402,chardev=seabios"]
>>>>>
>>>>> But it doesn't boot
>>>>>
>>>>> /var/log/xen/qemu-dm-W7.log
>>>>> qemu-system-x86_64: -chardev stdio,id=seabios: invalid option
>>>> That's probably because you forgot to break up this option into
>>>> separate python list entries:
>>>>
>>>> device_model_args=["-chardev", "stdio,id=seabios", "-device",
>>>> "isa-debugcon,iobase=0x402,chardev=seabios"]
>>>>
>>>> Laszlo
>>>>
>>> Thanks for your reply and sorry for my very stupid error.
>>> I retried with the correct parameters and on both cases (2 gb of ram
>>> working and 4gb of ram not working) I get only this one more line on
>>> qemu log:
>>> Start bios (version debian/1.7.3-1-1-ga76c6f1-dirty-20130813_122010-test)
>>>
>>> The probable cause is that on xen, seabios doesn't generate some tables
>>> but it takes the static ones from hvmloader.
>> Without having any specifics in mind, maybe this can be attributed to
>> the ACPI table move that affects both qemu and seabios, and hvmloader is
>> the collateral damage. Probably stuff should be updated in qemu/seabios
>> so that hvmloader be happy again. CC'ing Michael...
>>
>> Of course I might as well be completely off.
>>
>> Laszlo
> Seems unlikely - the ACPI table move code is still in my tree.
>
I see on 1.6 changelog:

...
QEMU can expose the full set of ACPI tables to the guest: See 
Features/ACPITableGeneration 
<http://wiki.qemu.org/Features/ACPITableGeneration>
...

Could be this the regression problem of 1.6?
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