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| author | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2014-01-24 08:18:52 (GMT) |
|---|---|---|
| committer | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2014-01-24 08:40:59 (GMT) |
| commit | 07be0382097027cde68d9268cc628741069b5762 (patch) | |
| tree | fee25ed4434d1d3d1d670b53065864ccc12c0d18 /arch/s390/include/uapi/asm | |
| parent | fded4329da9e8486b434d6c4aceab1ab3f433d8a (diff) | |
| download | linux-07be0382097027cde68d9268cc628741069b5762.tar.xz | |
s390/hypfs: add interface for diagnose 0x304
To provide access to the set-partition-resource-parameter interface
to user space add a new attribute to hypfs/debugfs:
* s390_hypsfs/diag_304
The data for the query-partition-resource-parameters command can
be access by a read on the attribute. All other diagnose 0x304
requests need to be submitted via ioctl with CAP_SYS_ADMIN rights.
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'arch/s390/include/uapi/asm')
| -rw-r--r-- | arch/s390/include/uapi/asm/hypfs.h | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/arch/s390/include/uapi/asm/hypfs.h b/arch/s390/include/uapi/asm/hypfs.h new file mode 100644 index 0000000..37998b4 --- /dev/null +++ b/arch/s390/include/uapi/asm/hypfs.h @@ -0,0 +1,25 @@ +/* + * IOCTL interface for hypfs + * + * Copyright IBM Corp. 2013 + * + * Author: Martin Schwidefsky <schwidefsky@de.ibm.com> + */ + +#ifndef _ASM_HYPFS_CTL_H +#define _ASM_HYPFS_CTL_H + +#include <linux/types.h> + +struct hypfs_diag304 { + __u32 args[2]; + __u64 data; + __u64 rc; +} __attribute__((packed)); + +#define HYPFS_IOCTL_MAGIC 0x10 + +#define HYPFS_DIAG304 \ + _IOWR(HYPFS_IOCTL_MAGIC, 0x20, struct hypfs_diag304) + +#endif |