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diff --git a/sys/arm64/arm64/identcpu.c b/sys/arm64/arm64/identcpu.c
--- a/sys/arm64/arm64/identcpu.c
+++ b/sys/arm64/arm64/identcpu.c
@@ -2259,6 +2259,31 @@
/* Log features before APs are released and start printing to the dmesg. */
SYSINIT(cpu_features, SI_SUB_SMP - 1, SI_ORDER_ANY, cpu_features_sysinit, NULL);
+static void
+tcr_set_e0pd1(void *arg __unused)
+{
+ uint64_t tcr;
+
+ tcr = READ_SPECIALREG(tcr_el1);
+ tcr |= TCR_E0PD1;
+ WRITE_SPECIALREG(tcr_el1, tcr);
+ isb();
+}
+
+/* Enable support for more recent architecture features */
+static void
+cpu_feat_support(void *arg __unused)
+{
+ /*
+ * If FEAT_E0PD is supported use it to cause faults without a page
+ * table walk if userspace tries to access kernel memory.
+ */
+ if (ID_AA64MMFR2_E0PD_VAL(kern_cpu_desc.id_aa64mmfr2) !=
+ ID_AA64MMFR2_E0PD_NONE)
+ smp_rendezvous(NULL, tcr_set_e0pd1, NULL, NULL);
+}
+SYSINIT(cpu_feat_support, SI_SUB_SMP, SI_ORDER_ANY, cpu_feat_support, NULL);
+
#ifdef COMPAT_FREEBSD32
static u_long
parse_cpu_features_hwcap32(void)

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