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| author | Claudio Imbrenda <imbrenda@linux.vnet.ibm.com> | 2017-04-20 10:03:45 +0200 |
|---|---|---|
| committer | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2017-04-20 13:33:08 +0200 |
| commit | 2d42f9477320befd33846c4083cab898998cdee5 (patch) | |
| tree | 71045127b1000beafd1760b509e6ba9e66e1d3c6 /arch/s390/include/asm/page-states.h | |
| parent | b13de4b7adeb7a5e37a5aa78d5a4926c3cd4e131 (diff) | |
s390/kvm: Add PGSTE manipulation functions
Add PGSTE manipulation functions:
* set_pgste_bits sets specific bits in a PGSTE
* get_pgste returns the whole PGSTE
* pgste_perform_essa manipulates a PGSTE to set specific storage states
* ESSA_[SG]ET_* macros used to indicate the action for manipulate_pgste
Signed-off-by: Claudio Imbrenda <imbrenda@linux.vnet.ibm.com>
Reviewed-by: Janosch Frank <frankja@de.ibm.com>
Reviewed-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'arch/s390/include/asm/page-states.h')
| -rw-r--r-- | arch/s390/include/asm/page-states.h | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/arch/s390/include/asm/page-states.h b/arch/s390/include/asm/page-states.h new file mode 100644 index 000000000000..42267a2fe29e --- /dev/null +++ b/arch/s390/include/asm/page-states.h @@ -0,0 +1,19 @@ +/* + * Copyright IBM Corp. 2017 + * Author(s): Claudio Imbrenda <imbrenda@linux.vnet.ibm.com> + */ + +#ifndef PAGE_STATES_H +#define PAGE_STATES_H + +#define ESSA_GET_STATE 0 +#define ESSA_SET_STABLE 1 +#define ESSA_SET_UNUSED 2 +#define ESSA_SET_VOLATILE 3 +#define ESSA_SET_POT_VOLATILE 4 +#define ESSA_SET_STABLE_RESIDENT 5 +#define ESSA_SET_STABLE_IF_RESIDENT 6 + +#define ESSA_MAX ESSA_SET_STABLE_IF_RESIDENT + +#endif |