multiboot and multiboot2 bootchecks

grub-core/tests/boot/multiboot.S

@@ -0,0 +1,89 @@
+#define ASM_FILE	1
+#ifdef MULTIBOOT2
+#include <multiboot2.h>
+#else
+#include <multiboot.h>
+#endif
+
+#define SHUTDOWN_PORT 0x8900
+
+	.text
+	/* Align 32 bits boundary.  */
+	.align	8
+
+#ifdef MULTIBOOT2
+	/* Multiboot header.  */
+multiboot_header:
+	/* magic */
+	.long	MULTIBOOT2_HEADER_MAGIC
+	/* ISA: i386 */
+	.long   MULTIBOOT_ARCHITECTURE_I386
+	/* Header length.  */
+	.long	multiboot_header_end - multiboot_header
+	/* checksum */
+	.long	-(MULTIBOOT2_HEADER_MAGIC + MULTIBOOT_ARCHITECTURE_I386 + (multiboot_header_end - multiboot_header))
+	.short MULTIBOOT_HEADER_TAG_END
+	.short 0
+	.long 8
+multiboot_header_end:
+#else
+	/* Multiboot header.  */
+multiboot_header:
+	/* magic */
+	.long	MULTIBOOT_HEADER_MAGIC
+	/* flags */
+	.long	0
+	/* checksum */
+	.long	-MULTIBOOT_HEADER_MAGIC
+#endif
+	
+	.global start
+portmsg:
+	xorl %eax, %eax
+1:	
+	movb 0(%esi), %al
+	test %eax, %eax
+	jz 1f
+	outb %al, %dx
+	incl %esi
+	jmp 1b
+1:
+	ret
+
+serialmsg:	
+1:	
+	movb 0(%esi), %bl
+	testb %bl, %bl
+	jz 1f
+	movw $0x3fd, %dx
+2:	
+	inb %dx, %al
+	testb $0x20, %al
+	jz   2b
+
+	movw $0x3f8, %dx
+	movb %bl, %al
+	outb %al, %dx
+	incl %esi
+	jmp 1b
+1:
+	ret
+
+	.globl _start
+_start:
+	lea message, %esi
+	call serialmsg
+	lea shutdown, %esi
+	movw $SHUTDOWN_PORT, %dx
+	call portmsg
+
+1:
+	hlt
+	jmp 1b
+
+shutdown:
+	.ascii "Shutdown"
+	.byte 0
+message:
+	.ascii "Boot Test Passed Successfully\n" SUCCESSFUL_BOOT_STRING "\n"
+	.byte 0

grub-core/tests/boot/multiboot.cfg

@@ -0,0 +1,4 @@
+multiboot /multiboot.elf
+boot
+# Shouln't happen
+halt

grub-core/tests/boot/multiboot2.cfg

@@ -0,0 +1,4 @@
+multiboot2 /multiboot2.elf
+boot
+# Shouln't happen
+halt