On Thu, May 23, 2013 at 11:27:08PM +0800, Ming Lei wrote:
> > Yes, in your case, everything is fine in the kernel itself. And no
> > microcode update is needed for new CPU, thus no firmware.
>
> Can the driver decide if the CPU need microcode? Or there will
> be the microcode for the CPU in future?
The kernel can't know. The microcode updates are asynchonously released
from the kernel. I might be running a months old kernel, and get a new
microcode tomorrow. The kernel handles this by looking for a file
with a name matching the cpu family/model/stepping. (See how they are
formed in /lib/firmware/intel-ucode/*)
DAve
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majord...@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
