diff options
Diffstat (limited to 'src/arch')
| -rw-r--r-- | src/arch/i386/image/multiboot.c | 17 |
1 files changed, 15 insertions, 2 deletions
diff --git a/src/arch/i386/image/multiboot.c b/src/arch/i386/image/multiboot.c index cbab6a5c3..cfe4589a2 100644 --- a/src/arch/i386/image/multiboot.c +++ b/src/arch/i386/image/multiboot.c @@ -74,8 +74,21 @@ struct multiboot_header_info { * @v image ELF file * @ret rc Return status code */ -static int multiboot_execute ( struct image *image __unused ) { - return -ENOTSUP; +static int multiboot_execute ( struct image *image ) { + struct multiboot_info mbinfo; + + /* Populate multiboot information structure */ + memset ( &mbinfo, 0, sizeof ( mbinfo ) ); + + + /* Jump to OS with flat physical addressing */ + __asm__ ( PHYS_CODE ( "call *%%edi\n\t" ) + : : "a" ( MULTIBOOT_BOOTLOADER_MAGIC ), + "b" ( virt_to_phys ( &mbinfo ) ), + "D" ( image->entry ) + : "ecx", "edx", "esi", "ebp" ); + + return -ECANCELED; } /** |