Hi Stefano, On 21/05/16 16:09, Stefano Stabellini wrote:
On Thu, 5 May 2016, Julien Grall wrote:+void __init apply_alternatives_all(void) +{ + int ret; + + /* better not try code patching on a live SMP system */ + ret = stop_machine_run(__apply_alternatives_multi_stop, NULL, NR_CPUS);Why not just call stop_machine_run, passing 0 as the cpu to run __apply_alternatives_multi_stop on? Given that you already have secondary cpus spinning in __apply_alternatives_multi_stop. What am I missing?
Someone as to call __apply_alternatives_multi_stop on secondary CPUs. apply_alternatives is called by the boot CPU, the rest are spinning within the idle_loop.
The function stop_machine_run will stop all the CPUs, and call __apply_alternatives_multi_stop on each of them.
Regards, -- Julien Grall _______________________________________________ Xen-devel mailing list Xen-devel@lists.xen.org http://lists.xen.org/xen-devel
