[trusty] [PULL] UBUNTU: fix no console in case of cloud environment

[Stefan Bader]

On 12.05.2015 09:03, Ming Lei wrote:
> In current arm64 Trusty cloud image, the 'console=' parameter
> has been removed from grub config, and always resort to 'stdout'
> DT property which is setup from QEMU.
> 
> Unfortunately parsing 'stdout' DT property is just merged to 3.19
> kernel, so there is no console usable any more for arm64 Trusty
> VM when booting via uefi/grub.
> 
> 9 of 10 patches are cherry picked from 3.19 to trusty, and the
> other one is backported by just dropping the dt self-test code, and
> with these 10 patches, arm64 Trusty VM can be booted with console
> usable via uefi/grub.

Ming (or whoever knows the answer), I am wondering why this series has to go
into 3.13 when IIRC we just accepted the same into 3.16 (Utopic) which is the
HWE kernel for Trusty...

-Stefan

> 
> BugLink: http://bugs.launchpad.net/bugs/1438585
> 
> SRU Justification:
>     Impact: no console if arm64 trusty based VM is booted from the cloud image
>     Fix: backport stdout enablement patches from upstream
>     Testcase: boot one arm64 trusty VM via uefi/grub
> 
> So please pull the top 10 patches from below tree/branch:
> 
>      git://kernel.ubuntu.com/git/ming/ubuntu-trusty.git  stdout_support
> 
> 
> 120c28c of: support passing console options with stdout-path
> 1a3d0e7 of: add optional options parameter to of_find_node_by_path()
> f29d72d of: Add bindings for chosen node, stdout-path
> 98cbe35 of: correct of_console_check()'s return value
> ecadb06 of: Enable console on serial ports specified by /chosen/stdout-path
> 30f9087 of: Create of_console_check() for selecting a console specified in /chos
> 0ac7353 of: Make of_find_node_by_path() handle /aliases
> 7c7e998 of: Create unlocked version of for_each_child_of_node()
> 651599f lib: add glibc style strchrnul() variant
> f26ae5f of: Add support for ePAPR "stdout-path" property
> 
> Thanks,
> Ming Lei
> 


-------------- next part --------------
A non-text attachment was scrubbed...
Name: signature.asc
Type: application/pgp-signature
Size: 819 bytes
Desc: OpenPGP digital signature
URL: <https://lists.ubuntu.com/archives/kernel-team/attachments/20150512/f0779c09/attachment.sig>