Re: [Xen-devel] [RFC PATCH V3 15/16] netfront: multi page ring support.

[Wei Liu <wei.liu2@xxxxxxxxxx>]

On Tue, 2012-01-31 at 09:53 +0000, Jan Beulich wrote:
> > with more than 4GB?
> 
> Imo the use of the DMA API is a mistake here anyway. There's no need
> for anything to be contiguous in a PV frontend/backend handshake
> protocol, or if one finds there is it's very likely just because of trying to
> avoid doing something properly.
> 

Seems you're right. I look at the backend code again, I make use of 
vm_struct to create a contiguous area in backend kernel. In fact I can
avoid DMA API completely. ;-)


Wei.

> Jan
> 



_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-devel