diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
index 73ce5dd07642..c32a181a7cbb 100644
--- a/arch/powerpc/Kconfig
+++ b/arch/powerpc/Kconfig
@@ -552,6 +552,9 @@ config KEXEC_FILE
 	  for kernel and initramfs as opposed to a list of segments as is the
 	  case for the older kexec call.
 
+config ARCH_HAS_KEXEC_PURGATORY
+	def_bool KEXEC_FILE
+
 config RELOCATABLE
 	bool "Build a relocatable kernel"
 	depends on PPC64 || (FLATMEM && (44x || FSL_BOOKE))
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index d234cca296db..7fe107f5990b 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -2008,6 +2008,9 @@ config KEXEC_FILE
 	  for kernel and initramfs as opposed to list of segments as
 	  accepted by previous system call.
 
+config ARCH_HAS_KEXEC_PURGATORY
+	def_bool KEXEC_FILE
+
 config KEXEC_VERIFY_SIG
 	bool "Verify kernel signature during kexec_file_load() syscall"
 	depends on KEXEC_FILE
diff --git a/kernel/kexec_file.c b/kernel/kexec_file.c
index e5bcd94c1efb..ab1dced677fd 100644
--- a/kernel/kexec_file.c
+++ b/kernel/kexec_file.c
@@ -532,6 +532,9 @@ static int kexec_calculate_store_digests(struct kimage *image)
 	struct kexec_sha_region *sha_regions;
 	struct purgatory_info *pi = &image->purgatory_info;
 
+	if (!IS_ENABLED(CONFIG_ARCH_HAS_KEXEC_PURGATORY))
+		return 0;
+
 	zero_buf = __va(page_to_pfn(ZERO_PAGE(0)) << PAGE_SHIFT);
 	zero_buf_sz = PAGE_SIZE;
 
@@ -633,6 +636,7 @@ out:
 	return ret;
 }
 
+#ifdef CONFIG_ARCH_HAS_KEXEC_PURGATORY
 /* Actually load purgatory. Lot of code taken from kexec-tools */
 static int __kexec_load_purgatory(struct kimage *image, unsigned long min,
 				  unsigned long max, int top_down)
@@ -1022,3 +1026,4 @@ int kexec_purgatory_get_set_symbol(struct kimage *image, const char *name,
 
 	return 0;
 }
+#endif /* CONFIG_ARCH_HAS_KEXEC_PURGATORY */