[Libvir] [PATCH] Add virConnectGetCapabilities call to return the capabilities of the driver / hypervisor

[Richard W.M. Jones]

Daniel P. Berrange wrote:
> On Fri, Mar 09, 2007 at 03:22:08PM +0000, Richard W.M. Jones wrote:
>> This patch:
>>
>> * Adds virConnectGetCapabilities which returns an XML description of the 
>> capabilities of the driver or hypervisor under this connection (see 
>> below for more about the XML format).
> 
> +    /* 32 or 64 bit host? */
> +    const char *bits = strstr (utsname.machine, "64") != NULL ? "64" : "32";
> 
> Will this work safely on all OS / arches ? I guess ia64, x86_64, sparc64
> and ppc64  all give the right results.
> 
> One alternative would be using 'sizeof(void*) * 8', although if someone used 
> a 32-bit set of libs on a  64-bit machine this would give wrong answer. 

The trouble is you need to run that sizeof code inside the qemu virtual 
machine :-)

Rich.

-- 
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