diff options
| author | Claudio Imbrenda <imbrenda@linux.vnet.ibm.com> | 2016-08-29 15:56:55 +0200 |
|---|---|---|
| committer | Christian Borntraeger <borntraeger@de.ibm.com> | 2017-08-29 15:15:56 +0200 |
| commit | 1bab1c02aff73eb5c3001e97f48e64ab6a80988a (patch) | |
| tree | 799e41232b89f29d072049c0eb2c28479d5ef5f6 /arch/s390/include/asm/page-states.h | |
| parent | 631aebfee8261d66597ce0f88ba046c77a0e415e (diff) | |
KVM: s390: expose no-DAT to guest and migration support
The STFLE bit 147 indicates whether the ESSA no-DAT operation code is
valid, the bit is not normally provided to the host; the host is
instead provided with an SCLP bit that indicates whether guests can
support the feature.
This patch:
* enables the STFLE bit in the guest if the corresponding SCLP bit is
present in the host.
* adds support for migrating the no-DAT bit in the PGSTEs
* fixes the software interpretation of the ESSA instruction that is
used when migrating, both for the new operation code and for the old
"set stable", as per specifications.
Signed-off-by: Claudio Imbrenda <imbrenda@linux.vnet.ibm.com>
Reviewed-by: Christian Borntraeger <borntraeger@de.ibm.com>
Acked-by: Cornelia Huck <cohuck@redhat.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Diffstat (limited to 'arch/s390/include/asm/page-states.h')
| -rw-r--r-- | arch/s390/include/asm/page-states.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/s390/include/asm/page-states.h b/arch/s390/include/asm/page-states.h index ca21b28a7b17..22b0f49e87c1 100644 --- a/arch/s390/include/asm/page-states.h +++ b/arch/s390/include/asm/page-states.h @@ -15,6 +15,6 @@ #define ESSA_SET_STABLE_IF_RESIDENT 6 #define ESSA_SET_STABLE_NODAT 7 -#define ESSA_MAX ESSA_SET_STABLE_IF_RESIDENT +#define ESSA_MAX ESSA_SET_STABLE_NODAT #endif |