arm64: kexec_file: use more system keyrings to verify kernel image signature

Currently, when loading a kernel image via the kexec_file_load() system
call, arm64 can only use the .builtin_trusted_keys keyring to verify
a signature whereas x86 can use three more keyrings i.e.
.secondary_trusted_keys, .machine and .platform keyrings. For example,
one resulting problem is kexec'ing a kernel image  would be rejected
with the error "Lockdown: kexec: kexec of unsigned images is restricted;
see man kernel_lockdown.7".

This patch set enables arm64 to make use of the same keyrings as x86 to
verify the signature kexec'ed kernel image.

Fixes: 732b7b93d849 ("arm64: kexec_file: add kernel signature verification support")
Cc: [email protected] # 105e10e2cf1c: kexec_file: drop weak attribute from functions
Cc: [email protected] # 34d5960af253: kexec: clean up arch_kexec_kernel_verify_sig
Cc: [email protected] # 83b7bb2d49ae: kexec, KEYS: make the code in bzImage64_verify_sig generic
Acked-by: Baoquan He <[email protected]>
Cc: [email protected]
Cc: [email protected]
Cc: [email protected]
Co-developed-by: Michal Suchanek <[email protected]>
Signed-off-by: Michal Suchanek <[email protected]>
Acked-by: Will Deacon <[email protected]>
Signed-off-by: Coiby Xu <[email protected]>
Signed-off-by: Mimi Zohar <[email protected]>

0 files changed, 0 insertions, 0 deletions