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d42cd96100
Signed-off-by: Jon Doron <arilou@gmail.com> Message-Id: <20200424123444.3481728-2-arilou@gmail.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
85 lines
2.9 KiB
C
85 lines
2.9 KiB
C
/*
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* Hyper-V guest/hypervisor interaction
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*
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* Copyright (c) 2015-2018 Virtuozzo International GmbH.
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*
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* This work is licensed under the terms of the GNU GPL, version 2 or later.
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* See the COPYING file in the top-level directory.
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*/
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#ifndef HW_HYPERV_HYPERV_H
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#define HW_HYPERV_HYPERV_H
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#include "cpu-qom.h"
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#include "hw/hyperv/hyperv-proto.h"
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typedef struct HvSintRoute HvSintRoute;
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/*
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* Callback executed in a bottom-half when the status of posting the message
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* becomes known, before unblocking the connection for further messages
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*/
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typedef void (*HvSintMsgCb)(void *data, int status);
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HvSintRoute *hyperv_sint_route_new(uint32_t vp_index, uint32_t sint,
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HvSintMsgCb cb, void *cb_data);
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void hyperv_sint_route_ref(HvSintRoute *sint_route);
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void hyperv_sint_route_unref(HvSintRoute *sint_route);
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int hyperv_sint_route_set_sint(HvSintRoute *sint_route);
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/*
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* Submit a message to be posted in vcpu context. If the submission succeeds,
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* the status of posting the message is reported via the callback associated
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* with the @sint_route; until then no more messages are accepted.
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*/
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int hyperv_post_msg(HvSintRoute *sint_route, struct hyperv_message *msg);
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/*
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* Set event flag @eventno, and signal the SINT if the flag has changed.
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*/
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int hyperv_set_event_flag(HvSintRoute *sint_route, unsigned eventno);
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/*
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* Handler for messages arriving from the guest via HV_POST_MESSAGE hypercall.
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* Executed in vcpu context.
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*/
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typedef uint16_t (*HvMsgHandler)(const struct hyperv_post_message_input *msg,
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void *data);
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/*
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* Associate @handler with the message connection @conn_id, such that @handler
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* is called with @data when the guest executes HV_POST_MESSAGE hypercall on
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* @conn_id. If @handler is NULL clear the association.
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*/
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int hyperv_set_msg_handler(uint32_t conn_id, HvMsgHandler handler, void *data);
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/*
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* Associate @notifier with the event connection @conn_id, such that @notifier
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* is signaled when the guest executes HV_SIGNAL_EVENT hypercall on @conn_id.
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* If @notifier is NULL clear the association.
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*/
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int hyperv_set_event_flag_handler(uint32_t conn_id, EventNotifier *notifier);
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/*
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* Process HV_POST_MESSAGE hypercall: parse the data in the guest memory as
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* specified in @param, and call the HvMsgHandler associated with the
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* connection on the message contained therein.
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*/
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uint16_t hyperv_hcall_post_message(uint64_t param, bool fast);
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/*
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* Process HV_SIGNAL_EVENT hypercall: signal the EventNotifier associated with
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* the connection as specified in @param.
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*/
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uint16_t hyperv_hcall_signal_event(uint64_t param, bool fast);
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static inline uint32_t hyperv_vp_index(CPUState *cs)
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{
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return cs->cpu_index;
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}
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void hyperv_synic_add(CPUState *cs);
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void hyperv_synic_reset(CPUState *cs);
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void hyperv_synic_update(CPUState *cs, bool enable,
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hwaddr msg_page_addr, hwaddr event_page_addr);
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bool hyperv_is_synic_enabled(void);
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#endif
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