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s390-vfio-ap: introduces s390 kernel debug feature for vfio_ap device driver

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Sets up an s390dbf debug log for the vfio_ap device driver for logging
events occurring during the lifetime of the driver.

Signed-off-by: Tony Krowiak <akrowiak@linux.ibm.com>
Reviewed-by: Harald Freudenberger <freude@linux.ibm.com>
Reviewed-by: Matthew Rosato <mjrosato@linux.ibm.com>
Acked-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
This commit is contained in:
Tony Krowiak
2021-10-26 16:58:31 -04:00
committed by Vasily Gorbik
parent dfd42facf1
commit a084c44eaa
2 changed files with 53 additions and 0 deletions
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32
drivers/s390/crypto/vfio_ap_debug.h Normal file
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/* SPDX-License-Identifier: GPL-2.0 */
/*
* Copyright IBM Corp. 2022
*
* Author(s): Tony Krowiak <akrowiak@linux.ibm.com>
*/
#ifndef VFIO_AP_DEBUG_H
#define VFIO_AP_DEBUG_H
#include <asm/debug.h>
#define DBF_ERR 3 /* error conditions */
#define DBF_WARN 4 /* warning conditions */
#define DBF_INFO 5 /* informational */
#define DBF_DEBUG 6 /* for debugging only */
#define DBF_MAX_SPRINTF_ARGS 10
#define VFIO_AP_DBF(...) \
debug_sprintf_event(vfio_ap_dbf_info, ##__VA_ARGS__)
#define VFIO_AP_DBF_ERR(...) \
debug_sprintf_event(vfio_ap_dbf_info, DBF_ERR, ##__VA_ARGS__)
#define VFIO_AP_DBF_WARN(...) \
debug_sprintf_event(vfio_ap_dbf_info, DBF_WARN, ##__VA_ARGS__)
#define VFIO_AP_DBF_INFO(...) \
debug_sprintf_event(vfio_ap_dbf_info, DBF_INFO, ##__VA_ARGS__)
#define VFIO_AP_DBF_DBG(...) \
debug_sprintf_event(vfio_ap_dbf_info, DBF_DEBUG, ##__VA_ARGS__)
extern debug_info_t *vfio_ap_dbf_info;
#endif /* VFIO_AP_DEBUG_H */