Re: [PATCH v8 0/2] dm: boot a mapped device without an initramfs

From: Kees Cook
Date: Tue Jun 27 2017 - 19:51:10 EST


On Fri, May 19, 2017 at 12:11 AM, Enric Balletbo i Serra
<enric.balletbo@xxxxxxxxxxxxx> wrote:
> Dear all,
>
> So here is a new version of the patches to be reviewed, this time as
> suggested by Alasdair the patches are reworked to match with the new
> dmsetup bootformat feature [1]. These patches are not reviewed yet but
> the format was discussed in the IRC and was suggested to send the
> kernel patches in parallel.

Just pinging on this thread again. Alasdair, how does this look to you?

Thanks!

-Kees

>
> Changes since v7:
> - Fix build error due commit
> e516db4f67 (dm ioctl: add a new DM_DEV_ARM_POLL ioctl)
>
> Changes since v6:
> - Add a new function to issue the equivalent of a DM ioctl programatically.
> - Use the new ioctl interface to create the devices.
> - Use a comma-delimited and semi-colon delimited dmsetup-like commands.
>
> Changes since v5:
> - https://www.redhat.com/archives/dm-devel/2016-February/msg00112.html
>
> [1] https://www.redhat.com/archives/linux-lvm/2017-May/msg00047.html
>
> Wating for your feedback,
>
> Enric Balletbo i Serra (1):
> dm ioctl: add a device mapper ioctl function.
>
> Will Drewry (1):
> init: add support to directly boot to a mapped device
>
> Documentation/admin-guide/kernel-parameters.rst | 1 +
> Documentation/admin-guide/kernel-parameters.txt | 3 +
> Documentation/device-mapper/dm-boot.txt | 65 ++++
> drivers/md/dm-ioctl.c | 50 +++
> include/linux/device-mapper.h | 6 +
> init/Makefile | 1 +
> init/do_mounts.c | 1 +
> init/do_mounts.h | 10 +
> init/do_mounts_dm.c | 459 ++++++++++++++++++++++++
> 9 files changed, 596 insertions(+)
> create mode 100644 Documentation/device-mapper/dm-boot.txt
> create mode 100644 init/do_mounts_dm.c
>
> --
> 2.9.3
>



--
Kees Cook
Pixel Security