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[S390] Linux API for writing z/VM APPLDATA Monitor records.

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This patch delivers a new Linux API in the form of a misc char
device that is useable from user space and allows write access
to the z/VM APPLDATA Monitor Records collected by the *MONITOR
System Service of z/VM.

Signed-off-by: Melissa Howland <[email protected]>
Signed-off-by: Martin Schwidefsky <[email protected]>
This commit is contained in:
Melissa Howland 2006-09-20 15:59:34 +02:00 • committed by Martin Schwidefsky
commit 31b5808829
6 changed files with 334 additions and 1 deletions
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2
include/asm-s390/Kbuild
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@ -1,4 +1,4 @@
include include/asm-generic/Kbuild.asm
unifdef-y += cmb.h debug.h
header-y += dasd.h qeth.h tape390.h ucontext.h vtoc.h z90crypt.h
header-y += dasd.h monwriter.h qeth.h tape390.h ucontext.h vtoc.h z90crypt.h

33
include/asm-s390/monwriter.h Normal file
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@ -0,0 +1,33 @@
/*
* include/asm-s390/monwriter.h
*
* Copyright (C) IBM Corp. 2006
* Character device driver for writing z/VM APPLDATA monitor records
* Version 1.0
* Author(s): Melissa Howland <melissah@us.ibm.com>
*
*/
#ifndef _ASM_390_MONWRITER_H
#define _ASM_390_MONWRITER_H
/* mon_function values */
#define MONWRITE_START_INTERVAL 0x00 /* start interval recording */
#define MONWRITE_STOP_INTERVAL 0x01 /* stop interval or config recording */
#define MONWRITE_GEN_EVENT 0x02 /* generate event record */
#define MONWRITE_START_CONFIG 0x03 /* start configuration recording */
/* the header the app uses in its write() data */
struct monwrite_hdr {
unsigned char mon_function;
unsigned short applid;
unsigned char record_num;
unsigned short version;
unsigned short release;
unsigned short mod_level;
unsigned short datalen;
unsigned char hdrlen;
} __attribute__((packed));
#endif /* _ASM_390_MONWRITER_H */