| 1 | /* |
| 2 | * Stubs for CONFIG_HYPERV=n |
| 3 | * |
| 4 | * Copyright (c) 2015-2018 Virtuozzo International GmbH. |
| 5 | * |
| 6 | * This work is licensed under the terms of the GNU GPL, version 2 or later. |
| 7 | * See the COPYING file in the top-level directory. |
| 8 | */ |
| 9 | |
| 10 | #include "qemu/osdep.h" |
| 11 | #include "hyperv.h" |
| 12 | |
| 13 | #ifdef CONFIG_KVM |
| 14 | int kvm_hv_handle_exit(X86CPU *cpu, struct kvm_hyperv_exit *exit) |
| 15 | { |
| 16 | switch (exit->type) { |
| 17 | case KVM_EXIT_HYPERV_SYNIC: |
| 18 | if (!hyperv_feat_enabled(cpu, HYPERV_FEAT_SYNIC)) { |
| 19 | return -1; |
| 20 | } |
| 21 | |
| 22 | /* |
| 23 | * Tracking the changes in the MSRs is unnecessary as there are no |
| 24 | * users for them beside save/load, which is handled nicely by the |
| 25 | * generic MSR save/load code |
| 26 | */ |
| 27 | return 0; |
| 28 | case KVM_EXIT_HYPERV_HCALL: |
| 29 | exit->u.hcall.result = HV_STATUS_INVALID_HYPERCALL_CODE; |
| 30 | return 0; |
| 31 | case KVM_EXIT_HYPERV_SYNDBG: |
| 32 | if (!hyperv_feat_enabled(cpu, HYPERV_FEAT_SYNDBG)) { |
| 33 | return -1; |
| 34 | } |
| 35 | |
| 36 | return 0; |
| 37 | default: |
| 38 | return -1; |
| 39 | } |
| 40 | } |
| 41 | #endif |
| 42 | |
| 43 | int hyperv_x86_synic_add(X86CPU *cpu) |
| 44 | { |
| 45 | return -ENOSYS; |
| 46 | } |
| 47 | |
| 48 | void hyperv_x86_synic_reset(X86CPU *cpu) |
| 49 | { |
| 50 | } |
| 51 | |
| 52 | void hyperv_x86_synic_update(X86CPU *cpu) |
| 53 | { |
| 54 | } |
| 55 | |
| 56 | void hyperv_x86_set_vmbus_recommended_features_enabled(void) |
| 57 | { |
| 58 | } |
| 59 | |
| 60 | uint64_t hyperv_syndbg_query_options(void) |
| 61 | { |
| 62 | return 0; |
| 63 | } |
| 64 | |
| 65 | int hyperv_enable_synic(X86CPU *cpu) |
| 66 | { |
| 67 | return 0; |
| 68 | } |