[SRU precise] [PATCH 0/5] LP#1079084 -- fix Hyper-V disk/CD support

[Andy Whitcroft]

Hyper-V is moving the CD connectivity from the emulated ATA devices to
virtualised disks.  To support CDs in both places we need to bring the
Hyper-V ata_piix modifications up to the mainline versions.  With these
in place the images should boot in both old and new Hyper-V environments.

These have been tested by the Cloud Team and indicate that they correctly
locate the CD drive on the virtual channels:

    [    1.288778] ata2.00: ATAPI: Virtual CD, , max MWDMA2

The following patch set drops the existing UBUNTU SAUCE for this and
pulls in the upstreamed fixes, it then reinstates the manual overrides
(just in case).

-apw

Andy Whitcroft (5):
  Revert "UBUNTU: SAUCE: ata_piix: add a disable_driver option"
  Revert "UBUNTU: SAUCE: ata_piix: defer disks to the Hyper-V drivers
    by default"
  libata: add a host flag to ignore detected ATA devices
  ata_piix: defer disks to the Hyper-V drivers by default
  UBUNTU: SAUCE: ata_piix: add a disable_driver option

 drivers/ata/ata_piix.c    |   67 +++++++++++++++++++++++++--------------------
 drivers/ata/libata-core.c |    6 ++++
 include/linux/libata.h    |    1 +
 3 files changed, 44 insertions(+), 30 deletions(-)

-- 
1.7.10.4