D46984.diff
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	diff --git a/sys/amd64/include/cpufunc.h b/sys/amd64/include/cpufunc.h
	--- a/sys/amd64/include/cpufunc.h
	+++ b/sys/amd64/include/cpufunc.h
	@@ -942,6 +942,29 @@
	return (sgx_encls(SGX_EREMOVE, 0, (uint64_t)epc, 0));
	}

	+static __inline void
	+xrstors(uint8_t *save_area, uint64_t state_bitmap)
	+{
	+ uint32_t low, hi;
	+
	+ low = state_bitmap;
	+ hi = state_bitmap >> 32;
	+ __asm __volatile("xrstors %0" : : "m"(*save_area), "a"(low),
	+ "d"(hi));
	+}
	+
	+static __inline void
	+xsaves(uint8_t *save_area, uint64_t state_bitmap)
	+{
	+ uint32_t low, hi;
	+
	+ low = state_bitmap;
	+ hi = state_bitmap >> 32;
	+ __asm __volatile("xsaves %0" : "=m"(*save_area) : "a"(low),
	+ "d"(hi)
	+ : "memory");
	+}
	+
	void reset_dbregs(void);

	#ifdef _KERNEL