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-rw-r--r--asm/head.S7
1 files changed, 4 insertions, 3 deletions
diff --git a/asm/head.S b/asm/head.S
index 227b1c3..8cb2069 100644
--- a/asm/head.S
+++ b/asm/head.S
@@ -44,8 +44,9 @@
. = 0
.global __head
__head:
- /* When booted as an OPAL LID, this is a pointer to the OPAL
- * variant of the NACA
+ /*
+ * When booting a P7 machine in OPAL mode this pointer is used to
+ * find the opal variant of the NACA. Unused on other machines.
*/
.llong opal_naca
@@ -783,7 +784,7 @@ hv_lid_load_table:
/*
*
- * OPAL variant of NACA
+ * OPAL variant of NACA. This is only used when booting a P7 in OPAL mode.
*
*/
.global opal_naca