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| author |   Eugene (jno) Dvurechenski <jno@linux.vnet.ibm.com> | 2015-04-22 18:08:39 +0200 |
|---|---|---|
| committer |   Christian Borntraeger <borntraeger@de.ibm.com> | 2015-11-30 12:47:08 +0100 |
| commit | 5e0443152367ab9fef597a41a4e09a32df2bf887 (patch) | |
| tree | 143843125470e817394a2854c380baf9030c56e8 /tools/perf/scripts/python/call-graph-from-postgresql.py | |
| parent | KVM: s390: Make provisions for ESCA utilization (diff) | |
| download | wireguard-linux-5e0443152367ab9fef597a41a4e09a32df2bf887.tar.xz wireguard-linux-5e0443152367ab9fef597a41a4e09a32df2bf887.zip | |
KVM: s390: Introduce switching code
This patch adds code that performs transparent switch to Extended
SCA on addition of 65th VCPU in a VM. Disposal of ESCA is added too.
The entier ESCA functionality, however, is still not enabled.
The enablement will be provided in a separate patch.
This patch also uses read/write lock protection of SCA and its subfields for
possible disposal at the BSCA-to-ESCA transition. While only Basic SCA needs such
a protection (for the swap), any SCA access is now guarded.
Signed-off-by: Eugene (jno) Dvurechenski <jno@linux.vnet.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Diffstat (limited to 'tools/perf/scripts/python/call-graph-from-postgresql.py')
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