Re: [edk2-devel] question about qemu+kvm+ovmf+winxp

["Andrew Fish" <afish@apple.com>]

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Junhao

FYI there is a regression in master for OVFM right now: https://bugzilla.tianocore.org/show_bug.cgi?id=2266 so you might be hitting that.

Thanks,

Andrew Fish

> On Oct 11, 2019, at 11:13 PM, Junhao Gao <junhao.gao@intel.com> wrote:
> 
> 
> 
>> -----Original Message-----
>> From: David Woodhouse <dwmw2@infradead.org <mailto:dwmw2@infradead.org>>
>> Sent: Friday, October 11, 2019 10:36 PM
>> To: Laszlo Ersek <lersek@redhat.com <mailto:lersek@redhat.com>>; Gao, Junhao <junhao.gao@intel.com <mailto:junhao.gao@intel.com>>;
>> devel@edk2.groups.io <mailto:devel@edk2.groups.io>
>> Subject: Re: [edk2-devel] question about qemu+kvm+ovmf+winxp
>> 
>> On Fri, 2019-10-11 at 16:27 +0200, Laszlo Ersek wrote:
>>> On 10/11/19 09:44, Gao, Junhao wrote:
>>>> Hi David
>>>> 
>>>>       I have found this compiled OVMF-with-csm.fd can support winxp booting
>> up.
>>>>       OVMF-with-csm.fd path:
>> https://www.kraxel.org/repos/jenkins/seabios/seabios.git-csm-1.12.0-
>> 33.63.g43f5df7.x86_64.rpm
>>>>       Then could you help to provide me the compile method and base code to
>> reproduce this OVMF-with-csm.fd?
>>> 
>>> Ah, good point, I should have remembered that Gerd offers a CSM build in
>>> his repo!
>>> 
>>> So, you can easily look up the build instructions, in Gerd's SeaBIOS and
>>> OVMF RPM "spec" files. Check out these git repositories:
>>> 
>>>  https://git.kraxel.org/cgit/jenkins/seabios/
>>>  https://git.kraxel.org/cgit/jenkins/edk2/
>>> 
>>> Specifically:
>>> 
>>>  https://git.kraxel.org/cgit/jenkins/seabios/tree/seabios.git.spec
>>>  https://git.kraxel.org/cgit/jenkins/edk2/tree/edk2.git.spec.template
>> 
>> Right, thanks.
>> 
>> Ultimately it's as simple as:
>> 
>> • Build SeaBIOS with CONFIG_CSM
>> • Drop the resulting Csm16.bin into OvmfPkg/Csm/Csm16/ in the EDK2 tree
>> • Build EDK2 with -DCSM_ENABLE
>> 
> 
> Thanks David, follow these steps, I can reproduce the OVMF-with-csm.fd.
> However, I find that when I choose remotes/origin/master branch, after compiling, qemu+kvm+ovmf+winxp can't 
> boot up, but when I choose remotes/origin/UDK2018, the compiled OVMF.fd can work.
> So the latest edk2 code have removed CSM support? Could I apply the CSM patch to 
> the latest edk2 code to support my work because our project is based on the latest EDK2 code, thanks.
> 
>> Someone else mailed me recently to say they'd copied the Csm packages
>> over from OvmfPkg to Quark and had Windows booting on Galileo boards.
>> 
>> Hm, I wonder if we should move the CSM support out of OVMF and into
>> somewhere more generic, since it really is generic and not platform-
>> specific?
> 
> I can't make some decisions, from my view, maybe CSM module can be 
> an independent patch for user to apply or reject :)
> 
> 


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