[PATCH v2 0/4] Populate kaslr seed with TPM

seanedmond
2023-08-29T20:32:48Z

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 TPM interface. This can be enabled with CONFIG_KASLR_TPM_SEED.

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 tpm entropy

Sean Edmond (2):
cmd: kaslrseed: Use common API to fixup FDT
dm: core: Modify default for OFNODE_MULTI_TREE

arch/arm/cpu/armv8/sec_firmware.c | 39 +++++++++---------------
boot/image-fdt.c | 15 ++++++++++
cmd/kaslrseed.c | 22 +++++---------
common/fdt_support.c | 49 +++++++++++++++++++++++++++++++
drivers/core/Kconfig | 2 +-
drivers/core/ofnode.c | 17 +++++++++++
include/dm/ofnode.h | 12 ++++++++
include/fdt_support.h | 17 +++++++++++
lib/Kconfig | 9 ++++++
9 files changed, 142 insertions(+), 40 deletions(-)

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2.40.0