mirror of
https://github.com/Motorhead1991/qemu.git
synced 2025-07-27 12:23:53 -06:00
e6ea9f45b7
Add handling of SIGNAL_EVENT hypercall. For that, provide an interface to associate an EventNotifier with an event connection number, so that it's signaled when the SIGNAL_EVENT hypercall with the matching connection ID is called by the guest. Support for using KVM functionality for this will be added in a followup patch. Signed-off-by: Roman Kagan <rkagan@virtuozzo.com> Message-Id: <20180921082217.29481-8-rkagan@virtuozzo.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
65 lines
2.1 KiB
C
65 lines
2.1 KiB
C
/*
|
|
* Hyper-V guest/hypervisor interaction
|
|
*
|
|
* 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.
|
|
*/
|
|
|
|
#ifndef HW_HYPERV_HYPERV_H
|
|
#define HW_HYPERV_HYPERV_H
|
|
|
|
#include "cpu-qom.h"
|
|
#include "hw/hyperv/hyperv-proto.h"
|
|
|
|
typedef struct HvSintRoute HvSintRoute;
|
|
|
|
/*
|
|
* Callback executed in a bottom-half when the status of posting the message
|
|
* becomes known, before unblocking the connection for further messages
|
|
*/
|
|
typedef void (*HvSintMsgCb)(void *data, int status);
|
|
|
|
HvSintRoute *hyperv_sint_route_new(uint32_t vp_index, uint32_t sint,
|
|
HvSintMsgCb cb, void *cb_data);
|
|
void hyperv_sint_route_ref(HvSintRoute *sint_route);
|
|
void hyperv_sint_route_unref(HvSintRoute *sint_route);
|
|
|
|
int hyperv_sint_route_set_sint(HvSintRoute *sint_route);
|
|
|
|
/*
|
|
* Submit a message to be posted in vcpu context. If the submission succeeds,
|
|
* the status of posting the message is reported via the callback associated
|
|
* with the @sint_route; until then no more messages are accepted.
|
|
*/
|
|
int hyperv_post_msg(HvSintRoute *sint_route, struct hyperv_message *msg);
|
|
/*
|
|
* Set event flag @eventno, and signal the SINT if the flag has changed.
|
|
*/
|
|
int hyperv_set_event_flag(HvSintRoute *sint_route, unsigned eventno);
|
|
|
|
/*
|
|
* Associate @notifier with the event connection @conn_id, such that @notifier
|
|
* is signaled when the guest executes HV_SIGNAL_EVENT hypercall on @conn_id.
|
|
* If @notifier is NULL clear the association.
|
|
*/
|
|
int hyperv_set_event_flag_handler(uint32_t conn_id, EventNotifier *notifier);
|
|
|
|
/*
|
|
* Process HV_SIGNAL_EVENT hypercall: signal the EventNotifier associated with
|
|
* the connection as specified in @param.
|
|
*/
|
|
uint16_t hyperv_hcall_signal_event(uint64_t param, bool fast);
|
|
|
|
static inline uint32_t hyperv_vp_index(CPUState *cs)
|
|
{
|
|
return cs->cpu_index;
|
|
}
|
|
|
|
void hyperv_synic_add(CPUState *cs);
|
|
void hyperv_synic_reset(CPUState *cs);
|
|
void hyperv_synic_update(CPUState *cs, bool enable,
|
|
hwaddr msg_page_addr, hwaddr event_page_addr);
|
|
|
|
#endif
|