Why does the cache operation need to happen on the same CPU while the L1 caches
between cores are coherent?
As you know, cache operations usually operate for a range and it iterates
without disabling preemption.
Therefore, though you enclose the vcpu_run and handle_exit with preemption
disable,
On Thu, Jul 12, 2012 at 7:35 AM, 김민규 wrote:
> + /*
> +* Make sure preemption is disabled while calling handle_exit
> +* as exit handling touches CPU-specific resources, such as
> +* caches, and we must stay on the same CPU.
> +
+ /*
+* Make sure preemption is disabled while calling handle_exit
+* as exit handling touches CPU-specific resources, such as
+* caches, and we must stay on the same CPU.
+*
+* Code that might sleep must
