[Qemu-devel] Re: [PATCH 1/3] pseries: Abolish envs array

[Alexander Graf]

On 04/05/2011 03:16 PM, David Gibson wrote:
> On Tue, Apr 05, 2011 at 10:05:12AM +0200, Alexander Graf wrote:
> > On 05.04.2011, at 07:12, David Gibson wrote:
> [snip]
> > > +struct icp_state *xics_system_init(int nr_irqs)
> > > {
> > > +    CPUState *env;
> > > +    int max_server_num;
> > >      int i;
> > >      struct icp_state *icp;
> > >      struct ics_state *ics;
> > >
> > > +    max_server_num = -1;
> > > +    for (env = first_cpu; env != NULL; env = env->next_cpu) {
> > > +        if (env->cpu_index>  max_server_num) {
> > > +            max_server_num = env->cpu_index;
> > > +        }
> > > +    }
> > > +
> > >      icp = qemu_mallocz(sizeof(*icp));
> > > -    icp->nr_servers = nr_servers;
> > > -    icp->ss = qemu_mallocz(nr_servers * sizeof(struct icp_server_state));
> > > +    icp->nr_servers = max_server_num + 1;
> > > +    icp->ss = qemu_mallocz(icp->nr_servers*sizeof(struct icp_server_state));
> > > +
> > > +    for (i = 0; i<  icp->nr_servers; i++) {
> > > +        icp->ss[i].mfrr = 0xff;
> > Is ss always big enough to hold all CPUs + 1?
> Well, it should be.  We allocated it just above based on
> icp->nr_servers, and nr_servers is the largest cpu_index + 1, computer
> just above that

Ah, there it is :). I missed that part. Will apply the patches to my tree.


Alex