qemu

FORK: QEMU emulator
git clone https://git.neptards.moe/neptards/qemu.git
Log | Files | Refs | Submodules | LICENSE

hyperv-stub.c (1205B)

      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 }