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s390/kexec_file: Signature verification prototype

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Add kernel signature verification to kexec_file. The verification is based
on module signature verification and works with kernel images signed via
scripts/sign-file.

Signed-off-by: Philipp Rudo <prudo@linux.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
This commit is contained in:
Philipp Rudo
2019-02-26 10:50:39 +01:00
committed by Martin Schwidefsky
parent 653beba24d
commit e23a8020ce
8 changed files with 95 additions and 0 deletions
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arch/s390/include/asm/kexec.h
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@@ -65,6 +65,7 @@ struct s390_load_data {
size_t memsz;
};
int s390_verify_sig(const char *kernel, unsigned long kernel_len);
void *kexec_file_add_components(struct kimage *image,
int (*add_kernel)(struct kimage *image,
struct s390_load_data *data));