Re: [Xen-devel] [PATCH v3 4/8] x86: add support for COS/CBM manangement

2015-03-31 Thread Chao Peng
On Fri, Mar 27, 2015 at 08:16:10PM +, Andrew Cooper wrote: > On 26/03/15 12:38, Chao Peng wrote: > > @@ -238,6 +450,8 @@ static void cat_cpu_init(unsigned int cpu) > > ASSERT(socket < nr_sockets); > > > > info = cat_socket_info + socket; > > +if ( info->socket_cpu_mask == NULL )

Re: [Xen-devel] [PATCH v3 4/8] x86: add support for COS/CBM manangement

2015-03-27 Thread Andrew Cooper
On 26/03/15 12:38, Chao Peng wrote: > CAT introduces a mechanism for software to enable cache allocation based > on application priority or Class of Service(COS). Each COS can be > configured using capacity bitmasks(CBM) to represent cache capacity > and indicate the degree of overlap and isolation