diff --git a/sys/amd64/amd64/fpu.c b/sys/amd64/amd64/fpu.c
--- a/sys/amd64/amd64/fpu.c
+++ b/sys/amd64/amd64/fpu.c
@@ -238,22 +238,8 @@
 	fxrstor((char *)addr);
 }
 
-static void
-init_xsave(void)
-{
-
-	if (use_xsave)
-		return;
-	if ((cpu_feature2 & CPUID2_XSAVE) == 0)
-		return;
-	use_xsave = 1;
-	TUNABLE_INT_FETCH("hw.use_xsave", &use_xsave);
-}
-
 DEFINE_IFUNC(, void, fpusave, (void *))
 {
-
-	init_xsave();
 	if (!use_xsave)
 		return (fpusave_fxsave);
 	if ((cpu_stdext_feature & CPUID_EXTSTATE_XSAVEOPT) != 0) {
@@ -266,8 +252,6 @@
 
 DEFINE_IFUNC(, void, fpurestore, (void *))
 {
-
-	init_xsave();
 	if (!use_xsave)
 		return (fpurestore_fxrstor);
 	return ((cpu_stdext_feature & CPUID_STDEXT_NFPUSG) != 0 ?
diff --git a/sys/amd64/amd64/machdep.c b/sys/amd64/amd64/machdep.c
--- a/sys/amd64/amd64/machdep.c
+++ b/sys/amd64/amd64/machdep.c
@@ -1345,6 +1345,11 @@
 	    &pmap_pcid_invlpg_workaround_uena);
 	cpu_init_small_core();
 
+	if ((cpu_feature2 & CPUID2_XSAVE) != 0) {
+		use_xsave = 1;
+		TUNABLE_INT_FETCH("hw.use_xsave", &use_xsave);
+	}
+
 	link_elf_ireloc(kmdp);
 
 	/*
diff --git a/sys/i386/i386/machdep.c b/sys/i386/i386/machdep.c
--- a/sys/i386/i386/machdep.c
+++ b/sys/i386/i386/machdep.c
@@ -1545,6 +1545,11 @@
 		i386_kdb_init();
 	}
 
+	if (cpu_fxsr && (cpu_feature2 & CPUID2_XSAVE) != 0) {
+		use_xsave = 1;
+		TUNABLE_INT_FETCH("hw.use_xsave", &use_xsave);
+	}
+
 	kmdp = preload_search_by_type("elf kernel");
 	link_elf_ireloc(kmdp);
 
@@ -1565,6 +1570,7 @@
 
 	msgbufinit(msgbufp, msgbufsize);
 	npxinit(true);
+
 	/*
 	 * Set up thread0 pcb after npxinit calculated pcb + fpu save
 	 * area size.  Zero out the extended state header in fpu save
diff --git a/sys/i386/i386/npx.c b/sys/i386/i386/npx.c
--- a/sys/i386/i386/npx.c
+++ b/sys/i386/i386/npx.c
@@ -320,22 +320,8 @@
 	fnsave((char *)addr);
 }
 
-static void
-init_xsave(void)
-{
-
-	if (use_xsave)
-		return;
-	if (!cpu_fxsr || (cpu_feature2 & CPUID2_XSAVE) == 0)
-		return;
-	use_xsave = 1;
-	TUNABLE_INT_FETCH("hw.use_xsave", &use_xsave);
-}
-
 DEFINE_IFUNC(, void, fpusave, (union savefpu *))
 {
-
-	init_xsave();
 	if (use_xsave)
 		return ((cpu_stdext_feature & CPUID_EXTSTATE_XSAVEOPT) != 0 ?
 		    fpusave_xsaveopt : fpusave_xsave);