On 08/24/2015 01:01 PM, fu.wei@linaro.org wrote:
> + /*
> + * Get the frequency of system counter from the cp15 interface of ARM
> + * Generic timer. We don't need to check it, because if it returns "0",
> + * system would panic in very early stage.
> + */
> + gwdt->clk = arch_timer_get_cntfrq();
Just thinking out loud...
What happens later if we virtualize this device within KVM/QEMU/Xen and
then live migrate to another system in which the frequency changes?
Jon.
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> + /*
> + * Get the frequency of system counter from the cp15 interface of ARM
> + * Generic timer. We don't need to check it, because if it returns "0",
> + * system would panic in very early stage.
> + */
> + gwdt->clk = arch_timer_get_cntfrq();
Just thinking out loud...
What happens later if we virtualize this device within KVM/QEMU/Xen and
then live migrate to another system in which the frequency changes?
Jon.
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/