diff --git a/src/drivers/bitbash/bitbash.c b/src/drivers/bitbash/bitbash.c
index 9b24f716c..fce3f3eac 100644
--- a/src/drivers/bitbash/bitbash.c
+++ b/src/drivers/bitbash/bitbash.c
@@ -22,6 +22,7 @@
  */
 
 FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL );
+FILE_SECBOOT ( PERMITTED );
 
 #include <ipxe/bitbash.h>
 
diff --git a/src/drivers/bitbash/spi_bit.c b/src/drivers/bitbash/spi_bit.c
index 04fddc20b..6fb2ed302 100644
--- a/src/drivers/bitbash/spi_bit.c
+++ b/src/drivers/bitbash/spi_bit.c
@@ -22,6 +22,7 @@
  */
 
 FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL );
+FILE_SECBOOT ( PERMITTED );
 
 #include <stddef.h>
 #include <stdint.h>
diff --git a/src/drivers/net/realtek.c b/src/drivers/net/realtek.c
index 80442ab83..dcb221199 100644
--- a/src/drivers/net/realtek.c
+++ b/src/drivers/net/realtek.c
@@ -24,6 +24,7 @@
  */
 
 FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL );
+FILE_SECBOOT ( PERMITTED );
 
 #include <stdint.h>
 #include <string.h>
diff --git a/src/drivers/net/realtek.h b/src/drivers/net/realtek.h
index d50e349b0..2047664a6 100644
--- a/src/drivers/net/realtek.h
+++ b/src/drivers/net/realtek.h
@@ -8,6 +8,7 @@
  */
 
 FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL );
+FILE_SECBOOT ( PERMITTED );
 
 #include <ipxe/spi.h>
 #include <ipxe/spi_bit.h>
diff --git a/src/drivers/nvs/threewire.c b/src/drivers/nvs/threewire.c
index 547f35382..e523506c0 100644
--- a/src/drivers/nvs/threewire.c
+++ b/src/drivers/nvs/threewire.c
@@ -22,6 +22,7 @@
  */
 
 FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL );
+FILE_SECBOOT ( PERMITTED );
 
 #include <stddef.h>
 #include <string.h>
diff --git a/src/include/ipxe/bitbash.h b/src/include/ipxe/bitbash.h
index 2a2e475d0..b97819a04 100644
--- a/src/include/ipxe/bitbash.h
+++ b/src/include/ipxe/bitbash.h
@@ -8,6 +8,7 @@
  */
 
 FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL );
+FILE_SECBOOT ( PERMITTED );
 
 struct bit_basher;
 
diff --git a/src/include/ipxe/spi.h b/src/include/ipxe/spi.h
index 83b53bce3..f0cf2100b 100644
--- a/src/include/ipxe/spi.h
+++ b/src/include/ipxe/spi.h
@@ -8,6 +8,7 @@
  */
 
 FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL );
+FILE_SECBOOT ( PERMITTED );
 
 #include <ipxe/nvs.h>
 
diff --git a/src/include/ipxe/spi_bit.h b/src/include/ipxe/spi_bit.h
index 049d30a22..d28132b67 100644
--- a/src/include/ipxe/spi_bit.h
+++ b/src/include/ipxe/spi_bit.h
@@ -8,6 +8,7 @@
  */
 
 FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL );
+FILE_SECBOOT ( PERMITTED );
 
 #include <ipxe/spi.h>
 #include <ipxe/bitbash.h>
diff --git a/src/include/ipxe/threewire.h b/src/include/ipxe/threewire.h
index b5513ecdd..f5585921e 100644
--- a/src/include/ipxe/threewire.h
+++ b/src/include/ipxe/threewire.h
@@ -11,6 +11,7 @@
  */
 
 FILE_LICENCE ( GPL2_OR_LATER );
+FILE_SECBOOT ( PERMITTED );
 
 #include <ipxe/spi.h>
 #include <limits.h>