Re: Installing kernel headers in kvm-kmod

[Avi Kivity <avi@redhat.com>]

On 12/10/2009 04:50 PM, Arnd Bergmann wrote:
> On Thursday 10 December 2009, Jan Kiszka wrote:
>    
>> Anthony Liguori wrote:
>>      
>>> QEMU 0.12.0-rc1 does not support KVM
>>> https://bugs.launchpad.net/bugs/494500
>>>
>>> Boils down to the fact that 1) we don't include kernel headers in qemu
>>> (whereas qemu-kvm does) and 2) kvm-kmod does not install those headers
>>> on make install.
>>>
>>> I think we've discussed (2) as being the preferred solution.  Does
>>> everyone agree with that?  Anyone care to volunteer to make the change? :-)
>>>
>>>        
>> I've pushed a half-tested approach into kvm-kmod's next branch. Feel
>> free to test/fix/enhance it.
>>      
> This would work, but installing to /usr/include/linux/kvm.h will confuse
> distro package managers a lot, because that location belongs to the glibc
> or libc-linux-headers or some other package already.
>
> If you want to install the headers from kvm-kmod, I would recommend
> doing it in a different path, e.g. /usr/include/kvm-kmod/{linux,asm}.
>    

Maybe even /usr/local/include/kvm-kmod-$version/...., and a symlink 
/usr/local/include/kvm-kmod.

> qemu can then add -I/usr/include/kvm-kmod to it's default include
> path and get the kvm-kmod version if that's installed or the distro
> version otherwise.
>
> It may also be useful to do the equivalent of 'make headers_install'
> from the kernel, to remove all "#ifdef __KERNEL__" sections and
> sparse annotations from the header files, but it should also work
> without that.
>    

Well, qemu.git needs __user removed.

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