701189e311
A significant part of hyperv.c is not actually tied to x86, and can be moved to hw/. This will allow to maintain most of Hyper-V and VMBus target-independent, and to avoid conflicts with inclusion of arch-specific headers down the road in VMBus implementation. Also this stuff can now be opt-out with CONFIG_HYPERV. Signed-off-by: Roman Kagan <rkagan@virtuozzo.com> Message-Id: <20180921082041.29380-4-rkagan@virtuozzo.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
64 lines
1.6 KiB
C
64 lines
1.6 KiB
C
/*
|
|
* QEMU KVM Hyper-V support
|
|
*
|
|
* Copyright (C) 2015 Andrey Smetanin <asmetanin@virtuozzo.com>
|
|
*
|
|
* Authors:
|
|
* Andrey Smetanin <asmetanin@virtuozzo.com>
|
|
*
|
|
* 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"
|
|
#include "hw/hyperv/hyperv.h"
|
|
#include "hyperv-proto.h"
|
|
|
|
int kvm_hv_handle_exit(X86CPU *cpu, struct kvm_hyperv_exit *exit)
|
|
{
|
|
CPUX86State *env = &cpu->env;
|
|
|
|
switch (exit->type) {
|
|
case KVM_EXIT_HYPERV_SYNIC:
|
|
if (!cpu->hyperv_synic) {
|
|
return -1;
|
|
}
|
|
|
|
/*
|
|
* For now just track changes in SynIC control and msg/evt pages msr's.
|
|
* When SynIC messaging/events processing will be added in future
|
|
* here we will do messages queues flushing and pages remapping.
|
|
*/
|
|
switch (exit->u.synic.msr) {
|
|
case HV_X64_MSR_SCONTROL:
|
|
env->msr_hv_synic_control = exit->u.synic.control;
|
|
break;
|
|
case HV_X64_MSR_SIMP:
|
|
env->msr_hv_synic_msg_page = exit->u.synic.msg_page;
|
|
break;
|
|
case HV_X64_MSR_SIEFP:
|
|
env->msr_hv_synic_evt_page = exit->u.synic.evt_page;
|
|
break;
|
|
default:
|
|
return -1;
|
|
}
|
|
return 0;
|
|
case KVM_EXIT_HYPERV_HCALL: {
|
|
uint16_t code;
|
|
|
|
code = exit->u.hcall.input & 0xffff;
|
|
switch (code) {
|
|
case HV_POST_MESSAGE:
|
|
case HV_SIGNAL_EVENT:
|
|
default:
|
|
exit->u.hcall.result = HV_STATUS_INVALID_HYPERCALL_CODE;
|
|
return 0;
|
|
}
|
|
}
|
|
default:
|
|
return -1;
|
|
}
|
|
}
|