KVM-82 failed to compile

KVM-82 failed to compile

[Simon Gao]

I am seeing following error while compiling kvm-82:

In file included from /tmp/kvm-82/kernel/x86/svm.c:56:
/tmp/kvm-82/kernel/include/linux/kvm_host.h:171: error: field
‘mmu_notifier’ has incomplete type
make[4]: *** [/tmp/kvm-82/kernel/x86/svm.o] Error 1
make[3]: *** [/tmp/kvm-82/kernel/x86] Error 2
make[2]: *** [_module_/tmp/kvm-82/kernel] Error 2
make[2]: Leaving directory `/usr/src/linux-2.6.27-gentoo-r7'
make[1]: *** [all] Error 2
make[1]: Leaving directory `/tmp/kvm-82/kernel'
make: *** [kernel] Error 2

This error occurred to both  linux-2.6.26-gentoo-r4 and
linux-2.6.27-gentoo-r7.

Anyone else has such problem?

Re: KVM-82 failed to compile

[Simon Gao]

Simon Gao wrote:
> I am seeing following error while compiling kvm-82:
>
> In file included from /tmp/kvm-82/kernel/x86/svm.c:56:
> /tmp/kvm-82/kernel/include/linux/kvm_host.h:171: error: field
> ‘mmu_notifier’ has incomplete type
> make[4]: *** [/tmp/kvm-82/kernel/x86/svm.o] Error 1
> make[3]: *** [/tmp/kvm-82/kernel/x86] Error 2
> make[2]: *** [_module_/tmp/kvm-82/kernel] Error 2
> make[2]: Leaving directory `/usr/src/linux-2.6.27-gentoo-r7'
> make[1]: *** [all] Error 2
> make[1]: Leaving directory `/tmp/kvm-82/kernel'
> make: *** [kernel] Error 2
>
> This error occurred to both  linux-2.6.26-gentoo-r4 and
> linux-2.6.27-gentoo-r7.
>
> Anyone else has such problem?
>
>
> --
> To unsubscribe from this list: send the line "unsubscribe kvm" in
> the body of a message to majordomo@vger.kernel.org
> More majordomo info at  http://vger.kernel.org/majordomo-info.html
>   
Actually this compiling problem only occurred to linux-2.6.27-gentoo-r7. 

Re: KVM-82 failed to compile

[Nikola Ciprich]

Hi,
enable KVM support on kernel against which You're compiling..
n.

On Thu, Jan 01, 2009 at 02:06:26PM -0800, Simon Gao wrote:
> Simon Gao wrote:
> > I am seeing following error while compiling kvm-82:
> >
> > In file included from /tmp/kvm-82/kernel/x86/svm.c:56:
> > /tmp/kvm-82/kernel/include/linux/kvm_host.h:171: error: field
> > ‘mmu_notifier’ has incomplete type
> > make[4]: *** [/tmp/kvm-82/kernel/x86/svm.o] Error 1
> > make[3]: *** [/tmp/kvm-82/kernel/x86] Error 2
> > make[2]: *** [_module_/tmp/kvm-82/kernel] Error 2
> > make[2]: Leaving directory `/usr/src/linux-2.6.27-gentoo-r7'
> > make[1]: *** [all] Error 2
> > make[1]: Leaving directory `/tmp/kvm-82/kernel'
> > make: *** [kernel] Error 2
> >
> > This error occurred to both  linux-2.6.26-gentoo-r4 and
> > linux-2.6.27-gentoo-r7.
> >
> > Anyone else has such problem?
> >
> >
> > --
> > To unsubscribe from this list: send the line "unsubscribe kvm" in
> > the body of a message to majordomo@vger.kernel.org
> > More majordomo info at  http://vger.kernel.org/majordomo-info.html
> >   
> Actually this compiling problem only occurred to linux-2.6.27-gentoo-r7. 
> --
> To unsubscribe from this list: send the line "unsubscribe kvm" in
> the body of a message to majordomo@vger.kernel.org
> More majordomo info at  http://vger.kernel.org/majordomo-info.html
> 

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Re: KVM-82 failed to compile

[Simon Gao]

Nikola Ciprich wrote:
> Hi,
> enable KVM support on kernel against which You're compiling..
> n.
>
>   
That did it. So from 2.6.27 and on, we need to enable KVM module in
kernel no matter we want to use a separate outside module or not. This
is a little strange.

Re: KVM-82 failed to compile

[Avi Kivity]

Simon Gao wrote:
> Nikola Ciprich wrote:
>   
>> Hi,
>> enable KVM support on kernel against which You're compiling..
>> n.
>>
>>   
>>     
> That did it. So from 2.6.27 and on, we need to enable KVM module in
> kernel no matter we want to use a separate outside module or not. This
> is a little strange.
>   

While we could work around this, it actually buys you important 
functionality (full swapping) so I'd rather keep it this way.  Distros 
will enable kvm, so most users won't notice this at all.

-- 
error compiling committee.c: too many arguments to function

Re: KVM-82 failed to compile

[Carlo Marcelo Arenas Belon]

Thu, Jan 01, 2009 at 12:17:06PM -0800, Simon Gao wrote:
> I am seeing following error while compiling kvm-82:
> 
> In file included from /tmp/kvm-82/kernel/x86/svm.c:56:
> /tmp/kvm-82/kernel/include/linux/kvm_host.h:171: error: field
> ‘mmu_notifier’ has incomplete type

does that line correspond to "struct mmu_motifier"?

> This error occurred to both  linux-2.6.26-gentoo-r4 and
> linux-2.6.27-gentoo-r7.

has your kernel configuration (/usr/src/linux/.config) the following
enabled?

  CONFIG_MMU_NOTIFIER=y

> Anyone else has such problem?

FWIW I have kvm-82 compiled against linux-2.6.27-gentoo-r7

Carlo

Re: KVM-82 failed to compile

[Simon Gao]

Carlo Marcelo Arenas Belon wrote:
> Thu, Jan 01, 2009 at 12:17:06PM -0800, Simon Gao wrote:
>   
>> I am seeing following error while compiling kvm-82:
>>
>> In file included from /tmp/kvm-82/kernel/x86/svm.c:56:
>> /tmp/kvm-82/kernel/include/linux/kvm_host.h:171: error: field
>> ‘mmu_notifier’ has incomplete type
>>     
>
> does that line correspond to "struct mmu_motifier"?
>
>   
>> This error occurred to both  linux-2.6.26-gentoo-r4 and
>> linux-2.6.27-gentoo-r7.
>>     
>
> has your kernel configuration (/usr/src/linux/.config) the following
> enabled?
>
>   CONFIG_MMU_NOTIFIER=y
>
>   
I did not see the config parameter in my .config file, only has:

CONFIG_MMU=y
# CONFIG_IOMMU_HELPER is not set

Is there other parameter to enable to see the option?

Re: KVM-82 failed to compile

[walt]

Simon Gao wrote:
> Carlo Marcelo Arenas Belon wrote:


>> has your kernel configuration (/usr/src/linux/.config) the following
>> enabled?
>>
>>    CONFIG_MMU_NOTIFIER=y
>>
>>
> I did not see the config parameter in my .config file, only has:
>
> CONFIG_MMU=y
> # CONFIG_IOMMU_HELPER is not set
>
> Is there other parameter to enable to see the option?

Do 'make menuconfig' and select the second item from the bottom:
Virtualization-->Kernel-based Virtualization (KVM) support.