Re: [PATCH v18 06/11] powerpc: Move ima buffer fields to struct kimage

Lakshmi Ramasubramanian [off-list ref] writes:

The fields ima_buffer_addr and ima_buffer_size in "struct kimage_arch"
for powerpc are used to carry forward the IMA measurement list across
kexec system call.  These fields are not architecture specific, but are
currently limited to powerpc.

arch_ima_add_kexec_buffer() defined in "arch/powerpc/kexec/ima.c"
sets ima_buffer_addr and ima_buffer_size for the kexec system call.
This function does not have architecture specific code, but is
currently limited to powerpc.

Move ima_buffer_addr and ima_buffer_size to "struct kimage".
Set ima_buffer_addr and ima_buffer_size in ima_add_kexec_buffer()
in security/integrity/ima/ima_kexec.c.

Co-developed-by: Prakhar Srivastava <redacted>
Signed-off-by: Prakhar Srivastava <redacted>
Signed-off-by: Lakshmi Ramasubramanian <redacted>
Suggested-by: Will Deacon <will@kernel.org>
---
 arch/powerpc/include/asm/ima.h     |  3 ---
 arch/powerpc/include/asm/kexec.h   |  5 -----
 arch/powerpc/kexec/ima.c           | 29 ++++++-----------------------
 include/linux/kexec.h              |  3 +++
 security/integrity/ima/ima_kexec.c |  8 ++------
 5 files changed, 11 insertions(+), 37 deletions(-)

Reviewed-by: Thiago Jung Bauermann <redacted>

-- 
Thiago Jung Bauermann
IBM Linux Technology Center