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diff --git a/sys/arm64/include/_armreg.h b/sys/arm64/include/_armreg.h
new file mode 100644
--- /dev/null
+++ b/sys/arm64/include/_armreg.h
@@ -0,0 +1,56 @@
+/*-
+ * Copyright (c) 2013, 2014 Andrew Turner
+ * Copyright (c) 2015,2021 The FreeBSD Foundation
+ *
+ * Portions of this software were developed by Andrew Turner
+ * under sponsorship from the FreeBSD Foundation.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#if !defined(_MACHINE_ARMREG_H_) && \
+ !defined(_MACHINE_HYPERVISOR_H_)
+#error Do not include this file directly
+#endif
+
+#ifndef _MACHINE__ARMREG_H_
+#define _MACHINE__ARMREG_H_
+
+#define __MRS_REG_ALT_NAME(op0, op1, crn, crm, op2) \
+ S##op0##_##op1##_C##crn##_C##crm##_##op2
+#define _MRS_REG_ALT_NAME(op0, op1, crn, crm, op2) \
+ __MRS_REG_ALT_NAME(op0, op1, crn, crm, op2)
+#define MRS_REG_ALT_NAME(reg) \
+ _MRS_REG_ALT_NAME(reg##_op0, reg##_op1, reg##_CRn, reg##_CRm, reg##_op2)
+
+
+#define READ_SPECIALREG(reg) \
+({ uint64_t _val; \
+ __asm __volatile("mrs %0, " __STRING(reg) : "=&r" (_val)); \
+ _val; \
+})
+#define WRITE_SPECIALREG(reg, _val) \
+ __asm __volatile("msr " __STRING(reg) ", %0" : : "r"((uint64_t)_val))
+
+#define UL(x) UINT64_C(x)
+
+#endif /* !_MACHINE__ARMREG_H_ */
diff --git a/sys/arm64/include/armreg.h b/sys/arm64/include/armreg.h
--- a/sys/arm64/include/armreg.h
+++ b/sys/arm64/include/armreg.h
@@ -34,25 +34,9 @@
#ifndef _MACHINE_ARMREG_H_
#define _MACHINE_ARMREG_H_
-#define INSN_SIZE 4
-
-#define __MRS_REG_ALT_NAME(op0, op1, crn, crm, op2) \
- S##op0##_##op1##_C##crn##_C##crm##_##op2
-#define _MRS_REG_ALT_NAME(op0, op1, crn, crm, op2) \
- __MRS_REG_ALT_NAME(op0, op1, crn, crm, op2)
-#define MRS_REG_ALT_NAME(reg) \
- _MRS_REG_ALT_NAME(reg##_op0, reg##_op1, reg##_CRn, reg##_CRm, reg##_op2)
-
+#include <machine/_armreg.h>
-#define READ_SPECIALREG(reg) \
-({ uint64_t _val; \
- __asm __volatile("mrs %0, " __STRING(reg) : "=&r" (_val)); \
- _val; \
-})
-#define WRITE_SPECIALREG(reg, _val) \
- __asm __volatile("msr " __STRING(reg) ", %0" : : "r"((uint64_t)_val))
-
-#define UL(x) UINT64_C(x)
+#define INSN_SIZE 4
/* AFSR0_EL1 - Auxiliary Fault Status Register 0 */
#define AFSR0_EL1_REG MRS_REG_ALT_NAME(AFSR0_EL1)
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
@@ -30,6 +30,8 @@
#ifndef _MACHINE_HYPERVISOR_H_
#define _MACHINE_HYPERVISOR_H_
+#include <machine/_armreg.h>
+
/*
* These registers are only useful when in hypervisor context,
* e.g. specific to EL2, or controlling the hypervisor.

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