Release 4.7 drivers/s390/char/vmcp.h

/*
 * Copyright IBM Corp. 2004, 2005
 * Interface implementation for communication with the z/VM control program
 * Version 1.0
 * Author(s): Christian Borntraeger <cborntra@de.ibm.com>
 *
 *
 * z/VMs CP offers the possibility to issue commands via the diagnose code 8
 * this driver implements a character device that issues these commands and
 * returns the answer of CP.
 *
 * The idea of this driver is based on cpint from Neale Ferguson
 */

#include <linux/ioctl.h>
#include <linux/mutex.h>


#define VMCP_GETCODE _IOR(0x10, 1, int)

#define VMCP_SETBUF _IOW(0x10, 2, int)

#define VMCP_GETSIZE _IOR(0x10, 3, int)


struct vmcp_session {
	
unsigned int bufsize;
	
char *response;
	
int resp_size;
	
int resp_code;
	/* As we use copy_from/to_user, which might     *
         * sleep and cannot use a spinlock              */
	
struct mutex mutex;
};
Overall Contributors
Person
Tokens
Prop
Commits
CommitProp
christian borntraeger
christian borntraeger
42
97.67%
2
66.67%
heiko carstens
heiko carstens
1
2.33%
1
33.33%
Total
43
100.00%
3
100.00%
  
Directory: drivers/s390/char

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