08c3286822
KVM vCPU creation is done once during the vCPU realization when Qemu vCPU thread
is spawned. This is common to all the architectures as of now.
Hot-unplug of vCPU results in destruction of the vCPU object in QOM but the
corresponding KVM vCPU object in the Host KVM is not destroyed as KVM doesn't
support vCPU removal. Therefore, its representative KVM vCPU object/context in
Qemu is parked.
Refactor architecture common logic so that some APIs could be reused by vCPU
Hotplug code of some architectures likes ARM, Loongson etc. Update new/old APIs
with trace events. New APIs qemu_{create,park,unpark}_vcpu() can be externally
called. No functional change is intended here.
Signed-off-by: Salil Mehta <salil.mehta@huawei.com>
Reviewed-by: Gavin Shan <gshan@redhat.com>
Tested-by: Vishnu Pajjuri <vishnu@os.amperecomputing.com>
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Tested-by: Xianglai Li <lixianglai@loongson.cn>
Tested-by: Miguel Luis <miguel.luis@oracle.com>
Reviewed-by: Shaoqin Huang <shahuang@redhat.com>
Reviewed-by: Vishnu Pajjuri <vishnu@os.amperecomputing.com>
Reviewed-by: Nicholas Piggin <npiggin@gmail.com>
Tested-by: Zhao Liu <zhao1.liu@intel.com>
Reviewed-by: Zhao Liu <zhao1.liu@intel.com>
Reviewed-by: Harsh Prateek Bora <harshpb@linux.ibm.com>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Message-Id: <20240716111502.202344-2-salil.mehta@huawei.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
26 lines
798 B
C
26 lines
798 B
C
/*
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* Accelerator CPUS Interface
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*
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* Copyright 2020 SUSE LLC
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*
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* This work is licensed under the terms of the GNU GPL, version 2 or later.
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* See the COPYING file in the top-level directory.
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*/
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#ifndef KVM_CPUS_H
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#define KVM_CPUS_H
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#include "sysemu/cpus.h"
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int kvm_init_vcpu(CPUState *cpu, Error **errp);
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int kvm_cpu_exec(CPUState *cpu);
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void kvm_destroy_vcpu(CPUState *cpu);
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void kvm_cpu_synchronize_post_reset(CPUState *cpu);
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void kvm_cpu_synchronize_post_init(CPUState *cpu);
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void kvm_cpu_synchronize_pre_loadvm(CPUState *cpu);
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bool kvm_supports_guest_debug(void);
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int kvm_insert_breakpoint(CPUState *cpu, int type, vaddr addr, vaddr len);
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int kvm_remove_breakpoint(CPUState *cpu, int type, vaddr addr, vaddr len);
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void kvm_remove_all_breakpoints(CPUState *cpu);
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#endif /* KVM_CPUS_H */
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