[Top][All Lists]
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: [Qemu-devel] Re: Re: [PATCH v2 6/6] Pass cpu speed into SM BIOS.
From: |
Gleb Natapov |
Subject: |
Re: [Qemu-devel] Re: Re: [PATCH v2 6/6] Pass cpu speed into SM BIOS. |
Date: |
Thu, 28 Aug 2008 08:28:56 +0300 |
On Thu, Aug 28, 2008 at 01:42:59AM +0200, Sebastian Herbszt wrote:
> Gleb Natapov wrote:
>>>>> This is the incorrect frequency for a QEMU guest. I'm not sure
>>>>> why this is included. What does passing the frequency give us?
>>>>>
>>>> This is included for two reasons. First one is to demonstrate that
>>>> proposed interface is extensible. Second is that Micrisoft SVVP
>>>> test requires this info (and much more) to be set in SMBIOS
>>>> tables.
>>>
>>> Can you elaborate a bit on the "and much more" part? Is this the stuff
>>> described in "SMBIOS "Designed for Windows" Logo Requirements" at
>>> http://www.microsoft.com/whdc/system/platform/firmware/SMBIOS.mspx ?
>>>
>> I think yes. There is Microsoft test suit that test SMBIOS
>> implementation. Running it on bochs bios results in a couple of errors.
>
> Could you maybe post those errors on the bochs mailing list?
>
I'll have to rerun test. All I have now is fixes :)
>> Some fields cannot be empty. Some bits should be set. Most things can be
>> fixed without qemu help, but for CPU speed we need to ask qemu.
>
> What about computing the frequency in rombios?
>
There is a problem with this approach. What if the host is under heavy
load when guest is started? Linux computes frequency on a startup and
have the same problem. It was discussed recently on the KVM list.
--
Gleb.
- Re: [Qemu-devel] [PATCH v2 4/6] Use libuuid if available., (continued)
[Qemu-devel] [PATCH v2 6/6] Pass cpu speed into SM BIOS., Gleb Natapov, 2008/08/25
[Qemu-devel] Re: [PATCH v2 6/6] Pass cpu speed into SM BIOS., Sebastian Herbszt, 2008/08/25