Re: [Qemu-devel] [PATCH] don't expose lm bit if kernel is not 64-bit capable.

[Anthony Liguori <aliguori@us.ibm.com>]

Glauber Costa wrote:
> On Tue, Feb 3, 2009 at 1:44 PM, Alexander Graf <agraf@suse.de> wrote:
>   
>> This doesn't really compile on win32, does it?
>>     
> This is kvm code, and as we don't have kvm for win32 hosts, possibly
> does not matter.
>   

Would be better to use a kvm accessor to wrap this functionality.  
kvm_is_lmkernel() or something.  Makes things more obviously portable on 
another platform.

Regards,

Anthony Liguori

>> Why not check for sizeof(long) == 4? That way you'd know that you're running
>> 32-bit code which can only handle 32-bit guests anyway, right? And if you're
>> running 64-bit userspace code, you know that the kernel is 64-bit aware.
>>     
>
> How about qemu/kvm compiled in a 32-bit environment, thus, sizeof long == 4,
> running in a x86_64 capable kernel?
>
>