[PATCH v3 0/5] Populate kaslr seed with RNG

[Ilias Apalodimas]

Simon,

I've reviewed patch#2 which I had some concerns and it looks ok.
The series is assigned to me but you've reviewed the vast majority of the
patchset.  Will you send ti via the -dm tree or shall I pick it up?

Thanks
/Ilias
On Tue, Sep 12, 2023 at 02:34:59PM -0700, seanedmond at linux.microsoft.com wrote:
> From: Sean Edmond <seanedmond at microsoft.com>
>
> This patch series creates a common API (fdt_fixup_kaslr_seed()) for
> populating the kaslr seed in the DTB.  Existing users (kaslrseed,
> and ARMv8 sec firmware) have been updated to use this common API.
>
> New functionality has been introduced to populate the kaslr using
> the RNG.  This can be enabled with CONFIG_RNG_TPM_SEED.
>
> changes in v3:
> - Populate with RNG device instead of TPM device (this is a more generic solution)
> - Use event spy to do the FDT fixup
> - fix compile error for sandbox for !OFNODE_MULTI_TREE
>
> changes in v2:
> - fdt_fixup_kaslr_seed() uses the ofnode API
> - Add root_ofnode_from_fdt() to get the root node from an FDT and
>   perform error checking on the oftree
> - add comments to exported functions
> - Add error checking in image_setup_libfdt() for return from
>   fdt_tpm_kaslr_seed()
> - uclass_get_device() -> uclass_first_device_err()
> - Change default config for OFNODE_MULTI_TREE (y if !OF_LIVE)
>
>
> Dhananjay Phadke (2):
>   fdt: common API to populate kaslr seed
>   fdt: kaslr seed from RNG device
>
> Sean Edmond (3):
>   cmd: kaslrseed: Use common API to fixup FDT
>   dm: core: Modify default for OFNODE_MULTI_TREE
>   fdt: Fix compile error for !OFNODE_MULTI_TREE
>
>  arch/arm/cpu/armv8/sec_firmware.c | 39 ++++++++--------------
>  cmd/kaslrseed.c                   | 22 +++++--------
>  common/fdt_support.c              | 55 +++++++++++++++++++++++++++++++
>  drivers/core/Kconfig              |  2 +-
>  drivers/core/ofnode.c             | 29 ++++++++++++----
>  include/dm/ofnode.h               | 12 +++++++
>  include/fdt_support.h             |  9 +++++
>  lib/Kconfig                       |  7 ++++
>  8 files changed, 129 insertions(+), 46 deletions(-)
>
> --
> 2.40.0
>