diff --git a/sys/arm64/arm64/pmap.c b/sys/arm64/arm64/pmap.c
--- a/sys/arm64/arm64/pmap.c
+++ b/sys/arm64/arm64/pmap.c
@@ -3968,6 +3968,10 @@
 		mask |= ATTR_S1_XN;
 		nbits |= ATTR_S1_XN;
 	}
+	if ((flags & PMAP_ENTER_BTI) != 0) {
+		mask |= ATTR_S1_GP;
+		nbits |= ATTR_S1_GP;
+	}
 	if (mask == 0)
 		return;
 
@@ -4369,6 +4373,8 @@
 
 	if ((flags & PMAP_ENTER_WIRED) != 0)
 		new_l3 |= ATTR_SW_WIRED;
+	if ((flags & PMAP_ENTER_BTI) != 0)
+		new_l3 |= ATTR_S1_GP;
 	if (pmap->pm_stage == PM_STAGE1) {
 		if (!ADDR_IS_KERNEL(va))
 			new_l3 |= ATTR_S1_AP(ATTR_S1_AP_USER) | ATTR_S1_PXN;
@@ -4687,6 +4693,8 @@
 	if ((prot & VM_PROT_EXECUTE) == 0 ||
 	    m->md.pv_memattr == VM_MEMATTR_DEVICE)
 		new_l2 |= ATTR_S1_XN;
+	if ((flags & PMAP_ENTER_BTI) != 0)
+		new_l2 |= ATTR_S1_GP;
 	if (!ADDR_IS_KERNEL(va))
 		new_l2 |= ATTR_S1_AP(ATTR_S1_AP_USER) | ATTR_S1_PXN;
 	else
@@ -5025,6 +5033,8 @@
 	if ((prot & VM_PROT_EXECUTE) == 0 ||
 	    m->md.pv_memattr == VM_MEMATTR_DEVICE)
 		l3_val |= ATTR_S1_XN;
+	if ((flags & PMAP_ENTER_BTI) != 0)
+		l3_val |= ATTR_S1_GP;
 	if (!ADDR_IS_KERNEL(va))
 		l3_val |= ATTR_S1_AP(ATTR_S1_AP_USER) | ATTR_S1_PXN;
 	else
diff --git a/sys/arm64/include/pte.h b/sys/arm64/include/pte.h
--- a/sys/arm64/include/pte.h
+++ b/sys/arm64/include/pte.h
@@ -70,6 +70,7 @@
 
 #define	ATTR_CONTIGUOUS		(1UL << 52)
 #define	ATTR_DBM		(1UL << 51)
+#define	ATTR_S1_GP		(1UL << 50)
 #define	ATTR_S1_nG		(1 << 11)
 #define	ATTR_AF			(1 << 10)
 #define	ATTR_SH(x)		((x) << 8)
diff --git a/sys/vm/pmap.h b/sys/vm/pmap.h
--- a/sys/vm/pmap.h
+++ b/sys/vm/pmap.h
@@ -107,6 +107,7 @@
 #define	PMAP_ENTER_NOSLEEP	0x00000100
 #define	PMAP_ENTER_WIRED	0x00000200
 #define	PMAP_ENTER_LARGEPAGE	0x00000400
+#define	PMAP_ENTER_BTI		0x00800000
 #define	PMAP_ENTER_RESERVED	0xFF000000
 
 /*