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2024-09-17include/hw/s390x: replace assert(false) with g_assert_not_reached()Pierrick Bouvier1-1/+1
This patch is part of a series that moves towards a consistent use of g_assert_not_reached() rather than an ad hoc mix of different assertion mechanisms. Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Thomas Huth <thuth@redhat.com> Signed-off-by: Pierrick Bouvier <pierrick.bouvier@linaro.org> Reviewed-by: Eric Farman <farman@linux.ibm.com> Message-ID: <20240912073921.453203-15-pierrick.bouvier@linaro.org> Signed-off-by: Thomas Huth <thuth@redhat.com>
2024-09-10qapi/machine: Rename CpuS390* to S390Cpu*, and drop 'prefix'Markus Armbruster1-1/+1
QAPI's 'prefix' feature can make the connection between enumeration type and its constants less than obvious. It's best used with restraint. CpuS390Entitlement has a 'prefix' to change the generated enumeration constants' prefix from CPU_S390_ENTITLEMENT to S390_CPU_ENTITLEMENT. Rename the type to S390CpuEntitlement, so that 'prefix' is not needed. Likewise change CpuS390Polarization to S390CpuPolarization, and CpuS390State to S390CpuState. Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Daniel P. Berrangé <berrange@redhat.com> Reviewed-by: Zhao Liu <zhao1.liu@intel.com> Acked-by: Thomas Huth <thuth@redhat.com> Message-ID: <20240904111836.3273842-10-armbru@redhat.com>
2023-10-20s390x/cpu topology: resetting the Topology-Change-ReportPierre Morel1-0/+6
During a subsystem reset the Topology-Change-Report is cleared by the machine. Let's ask KVM to clear the Modified Topology Change Report (MTCR) bit of the SCA in the case of a subsystem reset. Signed-off-by: Pierre Morel <pmorel@linux.ibm.com> Reviewed-by: Thomas Huth <thuth@redhat.com> Reviewed-by: Nina Schoetterl-Glausch <nsg@linux.ibm.com> Co-developed-by: Nina Schoetterl-Glausch <nsg@linux.ibm.com> Signed-off-by: Nina Schoetterl-Glausch <nsg@linux.ibm.com> Message-ID: <20231016183925.2384704-7-nsg@linux.ibm.com> Signed-off-by: Thomas Huth <thuth@redhat.com>
2023-10-20target/s390x/cpu topology: handle STSI(15) and build the SYSIBPierre Morel1-0/+23
On interception of STSI(15.1.x) the System Information Block (SYSIB) is built from the list of pre-ordered topology entries. Signed-off-by: Pierre Morel <pmorel@linux.ibm.com> Reviewed-by: Nina Schoetterl-Glausch <nsg@linux.ibm.com> Co-developed-by: Nina Schoetterl-Glausch <nsg@linux.ibm.com> Reviewed-by: Thomas Huth <thuth@redhat.com> Acked-by: Markus Armbruster <armbru@redhat.com> Signed-off-by: Nina Schoetterl-Glausch <nsg@linux.ibm.com> Message-ID: <20231016183925.2384704-5-nsg@linux.ibm.com> Signed-off-by: Thomas Huth <thuth@redhat.com>
2023-10-20s390x/cpu topology: add topology entries on CPU hotplugPierre Morel1-0/+54
The topology information are attributes of the CPU and are specified during the CPU device creation. On hot plug we: - calculate the default values for the topology for drawers, books and sockets in the case they are not specified. - verify the CPU attributes - check that we have still room on the desired socket The possibility to insert a CPU in a mask is dependent on the number of cores allowed in a socket, a book or a drawer, the checking is done during the hot plug of the CPU to have an immediate answer. If the complete topology is not specified, the core is added in the physical topology based on its core ID and it gets defaults values for the modifier attributes. This way, starting QEMU without specifying the topology can still get some advantage of the CPU topology. Signed-off-by: Pierre Morel <pmorel@linux.ibm.com> Reviewed-by: Nina Schoetterl-Glausch <nsg@linux.ibm.com> Co-developed-by: Nina Schoetterl-Glausch <nsg@linux.ibm.com> Reviewed-by: Thomas Huth <thuth@redhat.com> Signed-off-by: Nina Schoetterl-Glausch <nsg@linux.ibm.com> Message-ID: <20231016183925.2384704-4-nsg@linux.ibm.com> Signed-off-by: Thomas Huth <thuth@redhat.com>