diff options
Diffstat (limited to 'arch/x86/realmode/rm/realmode.h')
| -rw-r--r-- | arch/x86/realmode/rm/realmode.h | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/arch/x86/realmode/rm/realmode.h b/arch/x86/realmode/rm/realmode.h new file mode 100644 index 0000000000..c76041a353 --- /dev/null +++ b/arch/x86/realmode/rm/realmode.h @@ -0,0 +1,22 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef ARCH_X86_REALMODE_RM_REALMODE_H +#define ARCH_X86_REALMODE_RM_REALMODE_H + +#ifdef __ASSEMBLY__ + +/* + * 16-bit ljmpw to the real_mode_seg + * + * This must be open-coded since gas will choke on using a + * relocatable symbol for the segment portion. + */ +#define LJMPW_RM(to) .byte 0xea ; .word (to), real_mode_seg + +#endif /* __ASSEMBLY__ */ + +/* + * Signature at the end of the realmode region + */ +#define REALMODE_END_SIGNATURE 0x65a22c82 + +#endif /* ARCH_X86_REALMODE_RM_REALMODE_H */ |