[PATCH] Like this.

[Konrad Rzeszutek Wilk]

---
 arch/x86/xen/Makefile    |    1 +
 arch/x86/xen/efi.c       |   22 ++++++++++++++++++++++
 arch/x86/xen/enlighten.c |   23 +----------------------
 arch/x86/xen/xen-ops.h   |    8 ++++++++
 4 files changed, 32 insertions(+), 22 deletions(-)
 create mode 100644 arch/x86/xen/efi.c

diff --git a/arch/x86/xen/Makefile b/arch/x86/xen/Makefile
index b187df5..aa045ad 100644
--- a/arch/x86/xen/Makefile
+++ b/arch/x86/xen/Makefile
@@ -22,3 +22,4 @@ obj-$(CONFIG_PARAVIRT_SPINLOCKS)+= spinlock.o
 obj-$(CONFIG_XEN_DEBUG_FS)	+= debugfs.o
 obj-$(CONFIG_XEN_DOM0)		+= apic.o vga.o
 obj-$(CONFIG_SWIOTLB_XEN)	+= pci-swiotlb-xen.o
+obj-$(CONFIG_XEN_EFI)		+= efi.c
diff --git a/arch/x86/xen/efi.c b/arch/x86/xen/efi.c
new file mode 100644
index 0000000..0b751d9
--- /dev/null
+++ b/arch/x86/xen/efi.c
@@ -0,0 +1,22 @@
+/* Need some headers. */
+
+extern efi_system_table_t __init *xen_efi_probe(void);
+
+void __init xen_efi_init(void)
+{
+	efi_system_table_t *efi_systab_xen;
+
+	efi_systab_xen = xen_efi_probe();
+
+	if (!efi_systab_xen)
+		return;
+
+	strncpy((char *)&boot_params.efi_info.efi_loader_signature, "Xen",
+			sizeof(boot_params.efi_info.efi_loader_signature));
+	boot_params.efi_info.efi_systab = (__u32)__pa(efi_systab_xen);
+	boot_params.efi_info.efi_systab_hi = (__u32)(__pa(efi_systab_xen) >> 32);
+
+	set_bit(EFI_BOOT, &efi.flags);
+	set_bit(EFI_NO_DIRECT, &efi.flags);
+	set_bit(EFI_64BIT, &efi.flags);
+}
diff --git a/arch/x86/xen/enlighten.c b/arch/x86/xen/enlighten.c
index abd8013..2d71db3 100644
--- a/arch/x86/xen/enlighten.c
+++ b/arch/x86/xen/enlighten.c
@@ -152,15 +152,6 @@ struct shared_info *HYPERVISOR_shared_info = &xen_dummy_shared_info;
  */
 static int have_vcpu_info_placement = 1;
 
-#ifdef CONFIG_XEN_EFI
-extern efi_system_table_t __init *xen_efi_probe(void);
-#else
-static efi_system_table_t __init *xen_efi_probe(void)
-{
-	return NULL;
-}
-#endif
-
 struct tls_descs {
 	struct desc_struct desc[3];
 };
@@ -1581,7 +1572,6 @@ asmlinkage __visible void __init xen_start_kernel(void)
 {
 	struct physdev_set_iopl set_iopl;
 	int rc;
-	efi_system_table_t *efi_systab_xen;
 
 	if (!xen_start_info)
 		return;
@@ -1777,18 +1767,7 @@ asmlinkage __visible void __init xen_start_kernel(void)
 
 	xen_setup_runstate_info(0);
 
-	efi_systab_xen = xen_efi_probe();
-
-	if (efi_systab_xen) {
-		strncpy((char *)&boot_params.efi_info.efi_loader_signature, "Xen",
-				sizeof(boot_params.efi_info.efi_loader_signature));
-		boot_params.efi_info.efi_systab = (__u32)__pa(efi_systab_xen);
-		boot_params.efi_info.efi_systab_hi = (__u32)(__pa(efi_systab_xen) >> 32);
-
-		set_bit(EFI_BOOT, &efi.flags);
-		set_bit(EFI_NO_DIRECT, &efi.flags);
-		set_bit(EFI_64BIT, &efi.flags);
-	}
+	xen_efi_init();
 
 	/* Start the world */
 #ifdef CONFIG_X86_32
diff --git a/arch/x86/xen/xen-ops.h b/arch/x86/xen/xen-ops.h
index 12a884d..0908dec 100644
--- a/arch/x86/xen/xen-ops.h
+++ b/arch/x86/xen/xen-ops.h
@@ -127,4 +127,12 @@ __visible void xen_adjust_exception_frame(void);
 extern int xen_panic_handler_init(void);
 
 void xen_pvh_secondary_vcpu_init(int cpu);
+
+#ifdef CONFIG_X86_64
+void __init xen_efi_init(void);
+#else
+static inline void __init xen_efi_init(void)
+{
+}
+#endif
 #endif /* XEN_OPS_H */
-- 
1.7.7.6

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