af37bad52e
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>
65 lines
1.5 KiB
C
65 lines
1.5 KiB
C
/*
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* virtio ccw machine definitions
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*
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* Copyright 2012, 2016 IBM Corp.
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* Author(s): Cornelia Huck <cornelia.huck@de.ibm.com>
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*
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* This work is licensed under the terms of the GNU GPL, version 2 or (at
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* your option) any later version. See the COPYING file in the top-level
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* directory.
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*/
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#ifndef HW_S390X_S390_VIRTIO_CCW_H
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#define HW_S390X_S390_VIRTIO_CCW_H
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#include "hw/boards.h"
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#include "qom/object.h"
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#define TYPE_S390_CCW_MACHINE "s390-ccw-machine"
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OBJECT_DECLARE_TYPE(S390CcwMachineState, S390CcwMachineClass, S390_CCW_MACHINE)
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struct S390CcwMachineState {
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/*< private >*/
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MachineState parent_obj;
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/*< public >*/
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bool aes_key_wrap;
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bool dea_key_wrap;
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bool pv;
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uint8_t loadparm[8];
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};
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#define S390_PTF_REASON_NONE (0x00 << 8)
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#define S390_PTF_REASON_DONE (0x01 << 8)
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#define S390_PTF_REASON_BUSY (0x02 << 8)
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#define S390_TOPO_FC_MASK 0xffUL
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void s390_handle_ptf(S390CPU *cpu, uint8_t r1, uintptr_t ra);
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struct S390CcwMachineClass {
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/*< private >*/
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MachineClass parent_class;
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/*< public >*/
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bool ri_allowed;
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bool cpu_model_allowed;
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bool css_migration_enabled;
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bool hpage_1m_allowed;
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int max_threads;
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};
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/* runtime-instrumentation allowed by the machine */
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bool ri_allowed(void);
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/* cpu model allowed by the machine */
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bool cpu_model_allowed(void);
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/* 1M huge page mappings allowed by the machine */
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bool hpage_1m_allowed(void);
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/**
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* Returns true if (vmstate based) migration of the channel subsystem
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* is enabled, false if it is disabled.
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*/
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bool css_migration_enabled(void);
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#endif
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