[Qemu-devel] Re: [PATCH] kvm: Improve upgrade notes when facing unsupported kernels

[Jan Kiszka <jan.kiszka@web.de>]

[-- Attachment #1: Type: text/plain, Size: 1556 bytes --]

Avi Kivity wrote:
> Jan Kiszka wrote:
>> Avi Kivity wrote:
>>  
>>> Jan Kiszka wrote:
>>>    
>>>> Users complained that it is not obvious what to do when kvm refuses to
>>>> build or run due to an unsupported host kernel, so let's improve the
>>>> hints.
>>>>
>>>> diff --git a/configure b/configure
>>>> index 42d46f2..8ccb58c 100755
>>>> --- a/configure
>>>> +++ b/configure
>>>> @@ -1158,7 +1158,9 @@ EOF
>>>>      | grep "error: " \
>>>>      | awk -F "error: " '{if (NR>1) printf(", "); printf("%s",$2);}'`
>>>>        if test "$kvmerr" != "" ; then
>>>> -        kvm="no - (${kvmerr})"
>>>> +        kvm="no - (${kvmerr})\n\
>>>> +    NOTE: To enable KVM support, update your kernel to 2.6.29+ or
>>>> install \
>>>> +recent kvm-kmod from http://sourceforge.net/projects/kvm."
>>>>        fi
>>>>         
>>> Installing kvm-mod is insufficient, you need the headers from somewhere.
>>>
>>>     
>>
>> True. Hmm, wasn't there the plan to fix this by carrying them in-tree?
>>   
> 
> Anthony even posted a patch but it was a bit excessive, carrying tons of
> kernel headers.  I think we'd be fine carrying just the kvm headers,
> same as qemu-kvm.  In which case the compile time test can go away.
> 
> Alternatively, I can make kvm-kmod install the necessary headers to
> /usr/local/include.  It's probably cleaner this way.
> 

Good idea. Maybe put them in a separate directory (and make qemu aware
of it) so that kvm-kmod packages will not run into conflicts with the
installed kernel headers.

Jan


[-- Attachment #2: OpenPGP digital signature --]
[-- Type: application/pgp-signature, Size: 257 bytes --]