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Rework TPM measurements

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Rework TPM measurements to use fewer PCRs. After discussion with upstream,
it's preferable to avoid using so many PCRs. Instead, measure into PCRs 8
and 9 but use a prefix in the event log to indicate which subsystem carried
out the measurements.
This commit is contained in:
Matthew Garrett 2016-03-23 17:03:43 -07:00
parent c2eee36ec0
commit bb3473d7c8
12 changed files with 24 additions and 21 deletions
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2
grub-core/loader/i386/linux.c
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@ -718,7 +718,7 @@ grub_cmd_linux (grub_command_t cmd __attribute__ ((unused)),
goto fail;
}
grub_tpm_measure (kernel, len, GRUB_KERNEL_PCR, "Linux Kernel");
grub_tpm_measure (kernel, len, GRUB_BINARY_PCR, "grub_linux", "Kernel");
grub_memcpy (&lh, kernel, sizeof (lh));