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qemu/target/i386/kvm/hyperv-stub.c

55 lines
1.2 KiB
C

/*
* Stubs for CONFIG_HYPERV=n
*
* Copyright (c) 2015-2018 Virtuozzo International GmbH.
*
* This work is licensed under the terms of the GNU GPL, version 2 or later.
* See the COPYING file in the top-level directory.
*/
#include "qemu/osdep.h"
#include "hyperv.h"
#ifdef CONFIG_KVM
int kvm_hv_handle_exit(X86CPU *cpu, struct kvm_hyperv_exit *exit)
{
switch (exit->type) {
case KVM_EXIT_HYPERV_SYNIC:
if (!hyperv_feat_enabled(cpu, HYPERV_FEAT_SYNIC)) {
return -1;
}
/*
* Tracking the changes in the MSRs is unnecessary as there are no
* users for them beside save/load, which is handled nicely by the
* generic MSR save/load code
*/
return 0;
case KVM_EXIT_HYPERV_HCALL:
exit->u.hcall.result = HV_STATUS_INVALID_HYPERCALL_CODE;
return 0;
case KVM_EXIT_HYPERV_SYNDBG:
if (!hyperv_feat_enabled(cpu, HYPERV_FEAT_SYNDBG)) {
return -1;
}
return 0;
default:
return -1;
}
}
#endif
int hyperv_x86_synic_add(X86CPU *cpu)
{
return -ENOSYS;
}
void hyperv_x86_synic_reset(X86CPU *cpu)
{
}
void hyperv_x86_synic_update(X86CPU *cpu)
{
}