Avi Kivity <avi@xxxxxxxxxx> writes: > On 09/01/2012 03:35 PM, Rusty Russell wrote: >> Passing an address in a struct is pretty bad, since it involves >> compatibility wrappers. > > Right, some s390 thing. Err, no, i386 on x86-64, or ppc32 on ppc64, or arm on arm64.... Any time you put a pointer in a structure which is exposed to userspace, you have to deal with this. >> I don't think that is what makes the API hard >> to use. > > What is it then? I forgot what the original complaints/complainers were. I have no idea, since I didn't hear the complaints. But any non-fixed size array has issues in C; there's not much we can do about it. x86 manages this fine for msrs, and I didn't have a problem using it for my test programs. That's the limit of my experience, however. Cheers, Rusty. -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
