Re: compilation on ubuntu 32 bit host?

[Avi Kivity <avi-atKUWr5tajBWk0Htik3J/w@public.gmane.org>]

Gildas wrote:
> Hi,
>
> Has anyone managed to compile kvm on an ubuntu 32 bit host? (using the
> tarball kvm-2 available on sourceforge)
>
>   


[...]

> gn1@mbp18006i:~/install/kvm-2$ make
> make -C kernel
> make[1]: Entering directory `/home/gn1/install/kvm-2/kernel'
> make -C /lib/modules/`uname -r`/build M=`pwd` "$@"
> make[2]: Entering directory `/usr/src/linux-headers-2.6.15-27-686'
>   CC [M]  /home/gn1/install/kvm-2/kernel/kvm_main.o
> In file included from /home/gn1/install/kvm-2/kernel/kvm_main.c:18:
> /home/gn1/install/kvm-2/kernel/kvm.h:11:25: error: linux/mutex.h: No
> such file or directory
>   
Linux 2.6.15 is pre 'struct mutex'.  That turned up in Linux 2.6.16.

If Ubuntu has a kernel update for 2.6.16 or later, you should try that.  
If not, you can convert the mutex to a semaphore:

#include <linux/mutex.h> -> #include <asm/semaphore.h>
'struct mutex' -> 'struct semaphore'
'mutex_init()' -> 'init_MUTEX()'
'mutex_lock()' -> 'down()'
'mutex_unlock()' -> 'up()'

Looks like 'struct page::private' has also been renamed.

-- 
Do not meddle in the internals of kernels, for they are subtle and quick to panic.


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