Re: [RFC v2] USB: Fix handoff when BIOS disables host PCI device.

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



Am Donnerstag, 16. Februar 2012, 15:33:21 schrieb Sarah Sharp:
> > The BIOS might touch it. Are you really willing to say that there won't
> > be BIOSes that assume that what they enabled must stay enabled?
> 
> Once the xHCI PCI quirk handler runs, we've taken the host controller
> away from the BIOS with the BIOS/OS semaphore handshake.  (If the BIOS
> is smart enough to actually handle that.)  Any BIOS that touches the
> xHCI host controller after that point is just broken.  There is only so
> much we can do about the BIOS breakage. :)

What about S3 when the BIOS takes control?

	Regards
		Oliver
--
To unsubscribe from this list: send the line "unsubscribe linux-pci" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html


[Index of Archives]     [DMA Engine]     [Linux Coverity]     [Linux USB]     [Video for Linux]     [Linux Audio Users]     [Yosemite News]     [Linux Kernel]     [Linux SCSI]     [Greybus]

  Powered by Linux