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-rw-r--r--src/fundamental/tpm-pcr.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/src/fundamental/tpm-pcr.h b/src/fundamental/tpm-pcr.h
index d57291328d..e12b4ff607 100644
--- a/src/fundamental/tpm-pcr.h
+++ b/src/fundamental/tpm-pcr.h
@@ -17,6 +17,9 @@
/* This TPM PCR is where we extend the initrd sysext images into which we pass to the booted kernel */
#define TPM_PCR_INDEX_INITRD_SYSEXTS 13U
+/* This TPM PCR is where we measure the root fs volume key (and maybe /var/'s) if it is split off */
+#define TPM_PCR_INDEX_VOLUME_KEY 15U
+
/* List of PE sections that have special meaning for us in unified kernels. This is the canonical order in
* which we measure the sections into TPM PCR 11 (see above). PLEASE DO NOT REORDER! */
typedef enum UnifiedSection {