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define 'struct boot_block' which is the alpha (SRM) boot block

This commit is contained in:
cgd 1999-04-02 07:32:33 +00:00
parent 5a4e7b6de7
commit 5d472dba93
1 changed files with 21 additions and 3 deletions
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24
sys/arch/alpha/include/disklabel.h
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@ -1,7 +1,7 @@
/* $NetBSD: disklabel.h,v 1.3 1997/04/06 08:47:22 cgd Exp $ */
/* $NetBSD: disklabel.h,v 1.4 1999/04/02 07:32:33 cgd Exp $ */
/*
* Copyright (c) 1994 Christopher G. Demetriou
* Copyright (c) 1994, 1999 Christopher G. Demetriou
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
@ -14,7 +14,8 @@
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by Christopher G. Demetriou.
* This product includes software developed by Christopher G. Demetriou
* for the NetBSD Project.
* 4. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission
*
@ -45,4 +46,21 @@ struct cpu_disklabel {
struct dkbad bad; /* bad-sector information */
};
/*
* Alpha (disk, but also tape) Boot Block. See Section (III) 3.6.1 of the
* Alpha Architecture Reference Manual.
*/
struct boot_block {
u_int64_t bb_pad[60]; /* disklabel lives in here */
u_int64_t bb_secsize; /* secondary size (blocks) */
u_int64_t bb_secstart; /* secondary start (blocks) */
u_int64_t bb_flags; /* unknown; always zero */
u_int64_t bb_cksum; /* checksum of the the boot block,
* taken as u_int64_t's
*/
};
#define BOOT_BLOCK_BLOCKSIZE 512 /* block size for sec. size/start */
#endif /* _MACHINE_DISKLABEL_H_ */