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

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 :-)