[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: [Xen-devel] [PATCH-4.5 3/4] xen/arm: do not request maintenance_interrupts

On 07/02/14 18:56, Stefano Stabellini wrote:
   > +static void gic_clear_lrs(struct vcpu *v)
+    struct pending_irq *p;
+    int i = 0, irq;
+    uint32_t lr;
+    bool_t inflight;
+    ASSERT(!local_irq_is_enabled());
+    while ((i = find_next_bit((const long unsigned int *) &this_cpu(lr_mask),
+                              nr_lrs, i)) < nr_lrs) {

Did you look at to ELRSR{0,1} registers which list the usable LRs? I think you can use it with the this_cpu(lr_mask) to avoid browsing every LRs.

Julien Grall

Xen-devel mailing list



Lists.xenproject.org is hosted with RackSpace, monitoring our
servers 24x7x365 and backed by RackSpace's Fanatical Support®.