diff --git a/libc/kernel/uapi/linux/sed-opal.h b/libc/kernel/uapi/linux/sed-opal.h
index fc12509..a20197a 100644
--- a/libc/kernel/uapi/linux/sed-opal.h
+++ b/libc/kernel/uapi/linux/sed-opal.h
@@ -96,6 +96,22 @@
   __u64 offset;
   __u64 size;
 };
+enum opal_table_ops {
+  OPAL_READ_TABLE,
+  OPAL_WRITE_TABLE,
+};
+#define OPAL_UID_LENGTH 8
+struct opal_read_write_table {
+  struct opal_key key;
+  const __u64 data;
+  const __u8 table_uid[OPAL_UID_LENGTH];
+  __u64 offset;
+  __u64 size;
+#define OPAL_TABLE_READ (1 << OPAL_READ_TABLE)
+#define OPAL_TABLE_WRITE (1 << OPAL_WRITE_TABLE)
+  __u64 flags;
+  __u64 priv;
+};
 #define IOC_OPAL_SAVE _IOW('p', 220, struct opal_lock_unlock)
 #define IOC_OPAL_LOCK_UNLOCK _IOW('p', 221, struct opal_lock_unlock)
 #define IOC_OPAL_TAKE_OWNERSHIP _IOW('p', 222, struct opal_key)
@@ -111,4 +127,5 @@
 #define IOC_OPAL_PSID_REVERT_TPR _IOW('p', 232, struct opal_key)
 #define IOC_OPAL_MBR_DONE _IOW('p', 233, struct opal_mbr_done)
 #define IOC_OPAL_WRITE_SHADOW_MBR _IOW('p', 234, struct opal_shadow_mbr)
+#define IOC_OPAL_GENERIC_TABLE_RW _IOW('p', 235, struct opal_read_write_table)
 #endif