D41576.diff
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	diff --git a/sys/amd64/amd64/efirt_machdep.c b/sys/amd64/amd64/efirt_machdep.c
	--- a/sys/amd64/amd64/efirt_machdep.c
	+++ b/sys/amd64/amd64/efirt_machdep.c
	@@ -280,11 +280,6 @@
	* reason to bother with the virtual map, and no need to add a
	* complexity into loader.
	*
	- * The fpu_kern_enter() call allows firmware to use FPU, as mandated
	- * by the specification. In particular, CR0.TS bit is cleared. Also
	- * it enters critical section, giving us neccessary protection against
	- * context switch.
	- *
	* There is no need to disable interrupts around the change of %cr3,
	* the kernel mappings are correct, while we only grabbed the
	* userspace portion of VA. Interrupts handlers must not access
	diff --git a/sys/dev/efidev/efirt.c b/sys/dev/efidev/efirt.c
	--- a/sys/dev/efidev/efirt.c
	+++ b/sys/dev/efidev/efirt.c
	@@ -285,6 +285,11 @@
	return (0);
	}

	+/*
	+ * The fpu_kern_enter() call in allows firmware to use FPU, as
	+ * mandated by the specification. It also enters a critical section,
	+ * giving us neccessary protection against context switches.
	+ */
	static int
	efi_enter(void)
	{