diff --git a/arch/x86/boot/header.S b/arch/x86/boot/header.S
index b24fa50a98986..a87d9133384b0 100644
--- a/arch/x86/boot/header.S
+++ b/arch/x86/boot/header.S
@@ -90,12 +90,10 @@ optional_header:
 #endif
 
 extra_header_fields:
-	# PE specification requires ImageBase to be 64k aligned
-	.set	image_base, (LOAD_PHYSICAL_ADDR + 0xffff) & ~0xffff
 #ifdef CONFIG_X86_32
-	.long	image_base			# ImageBase
+	.long	0				# ImageBase
 #else
-	.quad	image_base			# ImageBase
+	.quad	0				# ImageBase
 #endif
 	.long	0x20				# SectionAlignment
 	.long	0x20				# FileAlignment
diff --git a/arch/x86/boot/tools/build.c b/arch/x86/boot/tools/build.c
index bd247692b7017..0354c223e3549 100644
--- a/arch/x86/boot/tools/build.c
+++ b/arch/x86/boot/tools/build.c
@@ -65,7 +65,6 @@ static unsigned long efi_pe_entry;
 static unsigned long efi32_pe_entry;
 static unsigned long kernel_info;
 static unsigned long startup_64;
-static unsigned long _ehead;
 static unsigned long _end;
 
 /*----------------------------------------------------------------------*/
@@ -229,27 +228,14 @@ static void update_pecoff_setup_and_reloc(unsigned int size)
 #endif
 }
 
-static void update_pecoff_text(unsigned int text_start, unsigned int file_sz,
-			       unsigned int init_sz)
+static void update_pecoff_text(unsigned int text_start, unsigned int file_sz)
 {
 	unsigned int pe_header;
 	unsigned int text_sz = file_sz - text_start;
-	unsigned int bss_sz = init_sz - file_sz;
+	unsigned int bss_sz = _end - text_sz;
 
 	pe_header = get_unaligned_le32(&buf[0x3c]);
 
-	/*
-	 * The PE/COFF loader may load the image at an address which is
-	 * misaligned with respect to the kernel_alignment field in the setup
-	 * header.
-	 *
-	 * In order to avoid relocating the kernel to correct the misalignment,
-	 * add slack to allow the buffer to be aligned within the declared size
-	 * of the image.
-	 */
-	bss_sz	+= CONFIG_PHYSICAL_ALIGN;
-	init_sz	+= CONFIG_PHYSICAL_ALIGN;
-
 	/*
 	 * Size of code: Subtract the size of the first sector (512 bytes)
 	 * which includes the header.
@@ -257,7 +243,7 @@ static void update_pecoff_text(unsigned int text_start, unsigned int file_sz,
 	put_unaligned_le32(file_sz - 512 + bss_sz, &buf[pe_header + 0x1c]);
 
 	/* Size of image */
-	put_unaligned_le32(init_sz, &buf[pe_header + 0x50]);
+	put_unaligned_le32(file_sz + bss_sz, &buf[pe_header + 0x50]);
 
 	/*
 	 * Address of entry point for PE/COFF executable
@@ -308,8 +294,7 @@ static void efi_stub_entry_update(void)
 
 static inline void update_pecoff_setup_and_reloc(unsigned int size) {}
 static inline void update_pecoff_text(unsigned int text_start,
-				      unsigned int file_sz,
-				      unsigned int init_sz) {}
+				      unsigned int file_sz) {}
 static inline void efi_stub_defaults(void) {}
 static inline void efi_stub_entry_update(void) {}
 
@@ -360,7 +345,6 @@ static void parse_zoffset(char *fname)
 		PARSE_ZOFS(p, efi32_pe_entry);
 		PARSE_ZOFS(p, kernel_info);
 		PARSE_ZOFS(p, startup_64);
-		PARSE_ZOFS(p, _ehead);
 		PARSE_ZOFS(p, _end);
 
 		p = strchr(p, '\n');
@@ -371,7 +355,7 @@ static void parse_zoffset(char *fname)
 
 int main(int argc, char ** argv)
 {
-	unsigned int i, sz, setup_sectors, init_sz;
+	unsigned int i, sz, setup_sectors;
 	int c;
 	u32 sys_size;
 	struct stat sb;
@@ -442,31 +426,9 @@ int main(int argc, char ** argv)
 	buf[0x1f1] = setup_sectors-1;
 	put_unaligned_le32(sys_size, &buf[0x1f4]);
 
-	init_sz = get_unaligned_le32(&buf[0x260]);
-#ifdef CONFIG_EFI_STUB
-	/*
-	 * The decompression buffer will start at ImageBase. When relocating
-	 * the compressed kernel to its end, we must ensure that the head
-	 * section does not get overwritten.  The head section occupies
-	 * [i, i + _ehead), and the destination is [init_sz - _end, init_sz).
-	 *
-	 * At present these should never overlap, because 'i' is at most 32k
-	 * because of SETUP_SECT_MAX, '_ehead' is less than 1k, and the
-	 * calculation of INIT_SIZE in boot/header.S ensures that
-	 * 'init_sz - _end' is at least 64k.
-	 *
-	 * For future-proofing, increase init_sz if necessary.
-	 */
-
-	if (init_sz - _end < i + _ehead) {
-		init_sz = (i + _ehead + _end + 4095) & ~4095;
-		put_unaligned_le32(init_sz, &buf[0x260]);
-	}
-#endif
-	update_pecoff_text(setup_sectors * 512, i + (sys_size * 16), init_sz);
+	update_pecoff_text(setup_sectors * 512, i + (sys_size * 16));
 
 	efi_stub_entry_update();
-
 	/* Update kernel_info offset. */
 	put_unaligned_le32(kernel_info, &buf[0x268]);