D50902.diff
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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
	@@ -2555,6 +2555,24 @@
	return (false);
	}

	+bool
	+get_user_reg(u_int reg, uint64_t *val, bool fbsd)
	+{
	+ int i;
	+
	+ for (i = 0; i < nitems(user_regs); i++) {
	+ if (user_regs[i].reg == reg) {
	+ if (fbsd)
	+ *val = CPU_DESC_FIELD(user_cpu_desc, i);
	+ else
	+ *val = CPU_DESC_FIELD(l_user_cpu_desc, i);
	+ return (true);
	+ }
	+ }
	+
	+ return (false);
	+}
	+
	static uint64_t
	update_special_reg_field(uint64_t user_reg, u_int type, uint64_t value,
	u_int width, u_int shift, bool sign)
	diff --git a/sys/arm64/include/cpu.h b/sys/arm64/include/cpu.h
	--- a/sys/arm64/include/cpu.h
	+++ b/sys/arm64/include/cpu.h
	@@ -236,6 +236,7 @@
	bool extract_user_id_field(u_int, u_int, uint8_t *);
	bool get_kernel_reg(u_int, uint64_t *);
	bool get_kernel_reg_masked(u_int, uint64_t *, uint64_t);
	+bool get_user_reg(u_int, uint64_t *, bool);

	void cpu_desc_init(void);