diff --git a/sys/arm64/arm64/locore.S b/sys/arm64/arm64/locore.S
--- a/sys/arm64/arm64/locore.S
+++ b/sys/arm64/arm64/locore.S
@@ -263,6 +263,10 @@
 	ldr	x2, =(HCR_RW | HCR_APK | HCR_API)
 	msr	hcr_el2, x2
 
+	/* Stash value of HCR_EL2 for later */
+	isb
+	mrs	x4, hcr_el2
+
 	/* Load the Virtualization Process ID Register */
 	mrs	x2, midr_el1
 	msr	vpidr_el2, x2
@@ -275,8 +279,22 @@
 	ldr	x2, .Lsctlr_res1
 	msr	sctlr_el1, x2
 
+	/*
+	 * On some hardware, e.g., Apple M1, we can't clear E2H, so make sure we
+	 * don't trap to EL2 for SIMD register usage to have at least a
+	 * minimally usable system.
+	 */
+	tbnz	x4, #HCR_E2H_SHIFT, hostmode
+	/* HCR_EL2.E2H == 0 */
 	/* Don't trap to EL2 for exceptions */
 	mov	x2, #CPTR_RES1
+	b	setcptr
+
+hostmode:
+	/* HCR_EL2.E2H == 1 */
+	mov	x2, #CPTR_FPEN
+
+setcptr:
 	msr	cptr_el2, x2
 
 	/* Don't trap to EL2 for CP15 traps */
diff --git a/sys/arm64/include/hypervisor.h b/sys/arm64/include/hypervisor.h
--- a/sys/arm64/include/hypervisor.h
+++ b/sys/arm64/include/hypervisor.h
@@ -45,9 +45,13 @@
 #define	CNTHCTL_EL1PCTEN	(1 << 0) /*Allow EL0/1 physical counter access*/
 
 /* CPTR_EL2 - Architecture feature trap register */
+/* Valid if HCR_EL2.E2H == 0 */
 #define	CPTR_RES0	0x7fefc800
 #define	CPTR_RES1	0x000033ff
 #define	CPTR_TFP	0x00000400
+/* Valid if HCR_EL2.E2H == 1 */
+#define	CPTR_FPEN	0x00300000
+/* Unconditionally valid */
 #define	CPTR_TTA	0x00100000
 #define	CPTR_TCPAC	0x80000000
 
@@ -88,7 +92,8 @@
 #define	HCR_RW				(UL(0x1) << 31)
 #define	HCR_CD				(UL(0x1) << 32)
 #define	HCR_ID				(UL(0x1) << 33)
-#define	HCR_E2H				(UL(0x1) << 34)
+#define	HCR_E2H_SHIFT			34
+#define	HCR_E2H				(UL(0x1) << HCR_E2H_SHIFT)
 #define	HCR_TLOR			(UL(0x1) << 35)
 #define	HCR_TERR			(UL(0x1) << 36)
 #define	HCR_TEA				(UL(0x1) << 37)