Re: [Xen-devel] [patch]Add a new reboot method

[Alan Cox <alan@xxxxxxxxxxxxxxxxxxx>]

> New chipsets support a new reboot method by writing port 0xcf9,

Some new chipsets. What 0xcf9 does to others is undefined.

> sometimes this is more efficient than "keyboard controller reboot" and
> "triple fault reboot". This patch add this new method and use it as a
> preferable one.

Who cares ?

Since when has the number of microseconds per reboot been remotely
relevant. It simply isn't a performance critical path. Besides which you
properly need to use the ACPI power off method on a newer chipset anyway.

(And I would note if Intel really thought power off efficiency was
important then they wouldn't have invented ACPI...)

Alan

_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-devel