diff options
| author | Christian Borntraeger <borntraeger@de.ibm.com> | 2018-01-18 09:56:27 +0100 |
|---|---|---|
| committer | Cornelia Huck <cohuck@redhat.com> | 2018-01-22 11:22:30 +0100 |
| commit | b073c87517d4d348c7bac0f0b35e8e83e6354d82 (patch) | |
| tree | 4c00978328434618b9f2378350f9807b369a0a16 /target/s390x/cpu.h | |
| parent | 9cbb636270b4df6f0a548e5c34b895330db5df8b (diff) | |
s390x/kvm: Handle bpb feature
We need to handle the bpb control on reset and migration. Normally
stfle.82 is transparent (and the normal guest part works without
hypervisor activity). To prevent any issues we require full
host kernel support for this feature.
Cc: qemu-stable@nongnu.org
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Message-Id: <20180118085628.40798-3-borntraeger@de.ibm.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
[CH: 'Branch Prediction Blocking' -> 'Branch prediction blocking']
Signed-off-by: Cornelia Huck <cohuck@redhat.com>
Diffstat (limited to 'target/s390x/cpu.h')
| -rw-r--r-- | target/s390x/cpu.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/target/s390x/cpu.h b/target/s390x/cpu.h index 915bccbc75..a1123ad621 100644 --- a/target/s390x/cpu.h +++ b/target/s390x/cpu.h @@ -93,6 +93,7 @@ struct CPUS390XState { uint32_t fpc; /* floating-point control register */ uint32_t cc_op; + bool bpbc; /* branch prediction blocking */ float_status fpu_status; /* passed to softfloat lib */ |