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authorThiebaud Weksteen <tweek@google.com>2017-09-20 11:13:40 +0300
committerJarkko Sakkinen <jarkko.sakkinen@linux.intel.com>2018-01-08 13:58:35 +0300
commit58cc1e4faf10a73c4302825ffd37a47d410fc1b5 (patch)
tree11116081f88d7715e754baafe565603398fca5fe /drivers/char/tpm/tpm.h
parent33b6d03469b2206fb51ecc37f40411a857ad8fff (diff)
downloadlinux-58cc1e4faf10a73c4302825ffd37a47d410fc1b5.tar.xz
tpm: parse TPM event logs based on EFI table
If we are not able to retrieve the TPM event logs from the ACPI table, check the EFI configuration table (Linux-specific GUID). The format version of the log is now returned by the provider function. Signed-off-by: Thiebaud Weksteen <tweek@google.com> Reviewed-by: Jason Gunthorpe <jgunthorpe@obsidianresearch.com> Reviewed-by: Javier Martinez Canillas <javierm@redhat.com> Tested-by: Javier Martinez Canillas <javierm@redhat.com> Tested-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com> Reviewed-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com> Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
Diffstat (limited to 'drivers/char/tpm/tpm.h')
-rw-r--r--drivers/char/tpm/tpm.h8
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/char/tpm/tpm.h b/drivers/char/tpm/tpm.h
index d0f15c760fc7..c1866cc02e30 100644
--- a/drivers/char/tpm/tpm.h
+++ b/drivers/char/tpm/tpm.h
@@ -589,6 +589,14 @@ static inline int tpm_read_log_of(struct tpm_chip *chip)
return -ENODEV;
}
#endif
+#if defined(CONFIG_EFI)
+int tpm_read_log_efi(struct tpm_chip *chip);
+#else
+static inline int tpm_read_log_efi(struct tpm_chip *chip)
+{
+ return -ENODEV;
+}
+#endif
int tpm_bios_log_setup(struct tpm_chip *chip);
void tpm_bios_log_teardown(struct tpm_chip *chip);