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| author |   Pierre Morel <pmorel@linux.ibm.com> | 2023-10-16 20:39:11 +0200 |
|---|---|---|
| committer |   Thomas Huth <thuth@redhat.com> | 2023-10-20 07:16:53 +0200 |
| commit | af37bad52e7c216c044f919d6254c77be0eacbc6 (patch) | |
| tree | 1433b37a9ee3822f181720969169bb67bd16a0bd /hw/core/machine-hmp-cmds.c | |
| parent | s390x/cpu topology: resetting the Topology-Change-Report (diff) | |
| download | qemu-af37bad52e7c216c044f919d6254c77be0eacbc6.tar.xz qemu-af37bad52e7c216c044f919d6254c77be0eacbc6.zip | |
s390x/cpu topology: interception of PTF instruction
When the host supports the CPU topology facility, the PTF
instruction with function code 2 is interpreted by the SIE,
provided that the userland hypervisor activates the interpretation
by using the KVM_CAP_S390_CPU_TOPOLOGY KVM extension.
The PTF instructions with function code 0 and 1 are intercepted
and must be emulated by the userland hypervisor.
During RESET all CPU of the configuration are placed in
horizontal polarity.
Signed-off-by: Pierre Morel <pmorel@linux.ibm.com>
Reviewed-by: Nina Schoetterl-Glausch <nsg@linux.ibm.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Co-developed-by: Nina Schoetterl-Glausch <nsg@linux.ibm.com>
Signed-off-by: Nina Schoetterl-Glausch <nsg@linux.ibm.com>
Message-ID: <20231016183925.2384704-8-nsg@linux.ibm.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
Diffstat (limited to 'hw/core/machine-hmp-cmds.c')
0 files changed, 0 insertions, 0 deletions