Avi Kivity wrote:
> Anthony Liguori wrote:
>> Joerg Roedel wrote:
>>> The compilation of kvm-userspace part fails if the in-kernel pit is not
>>> detected in <linux/kvm.h> with the following error message:
>>>
>>> pc.o: In function `pc_init1':
>>> /home/jroedel/src/kvm/kvm-userspace/qemu/hw/pc.c:987: undefined 
>>> reference to `kvm_pit_init'
>>> collect2: ld returned 1 exit status
>>>
>>> This patch fixes this little issue.
>>>   
>>
>> A better solution is to wrap qemu_kvm_put_in_kernel in an #ifdef 
>> KVM_CAP_PIT so that if it isn't defined, it always returns 0.  gcc 
>> will then do the right thing.
>>
>
> I would like to move qemu from depending on linux/kvm.h directly.  
> However, there is a lot of work needed to get that (including some 
> pointless stuff like defining libkvm structures to take the place of 
> kvm.h structures) so perhaps it is not a realistic goal.

My real point was that the #ifdef should be in the definition of 
qemu_kvm_put_in_kernel() as opposed to in C code.  If we use #ifdef 
USE_KVM_PIT instead of #ifdef KVM_CAP_PIT that's fine by me.

Regards,

Anthony Liguori


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