606c34bfd5
Make Hyper-V SynIC a device which is attached as a child to a CPU. For now it only makes SynIC visibile in the qom hierarchy, and maintains its internal fields in sync with the respecitve msrs of the parent cpu (the fields will be used in followup patches). Signed-off-by: Roman Kagan <rkagan@virtuozzo.com> Message-Id: <20180921082217.29481-3-rkagan@virtuozzo.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
49 lines
1.0 KiB
C
49 lines
1.0 KiB
C
/*
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* Stubs for CONFIG_HYPERV=n
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*
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* Copyright (c) 2015-2018 Virtuozzo International GmbH.
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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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#include "qemu/osdep.h"
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#include "hyperv.h"
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#ifdef CONFIG_KVM
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int kvm_hv_handle_exit(X86CPU *cpu, struct kvm_hyperv_exit *exit)
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{
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switch (exit->type) {
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case KVM_EXIT_HYPERV_SYNIC:
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if (!cpu->hyperv_synic) {
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return -1;
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}
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/*
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* Tracking the changes in the MSRs is unnecessary as there are no
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* users for them beside save/load, which is handled nicely by the
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* generic MSR save/load code
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*/
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return 0;
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case KVM_EXIT_HYPERV_HCALL:
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exit->u.hcall.result = HV_STATUS_INVALID_HYPERCALL_CODE;
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return 0;
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default:
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return -1;
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}
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}
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#endif
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int hyperv_x86_synic_add(X86CPU *cpu)
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{
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return -ENOSYS;
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}
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void hyperv_x86_synic_reset(X86CPU *cpu)
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{
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}
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void hyperv_x86_synic_update(X86CPU *cpu)
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{
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}
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