143 lines
4.6 KiB
C
143 lines
4.6 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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/*
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* Process HVCALL_RESET_DEBUG_SESSION hypercall.
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*/
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uint16_t hyperv_hcall_reset_dbg_session(uint64_t outgpa);
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/*
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* Process HVCALL_RETREIVE_DEBUG_DATA hypercall.
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*/
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uint16_t hyperv_hcall_retreive_dbg_data(uint64_t ingpa, uint64_t outgpa,
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bool fast);
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/*
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* Process HVCALL_POST_DEBUG_DATA hypercall.
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*/
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uint16_t hyperv_hcall_post_dbg_data(uint64_t ingpa, uint64_t outgpa, bool fast);
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uint32_t hyperv_syndbg_send(uint64_t ingpa, uint32_t count);
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uint32_t hyperv_syndbg_recv(uint64_t ingpa, uint32_t count);
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void hyperv_syndbg_set_pending_page(uint64_t ingpa);
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uint64_t hyperv_syndbg_query_options(void);
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typedef enum HvSynthDbgMsgType {
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HV_SYNDBG_MSG_CONNECTION_INFO,
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HV_SYNDBG_MSG_SEND,
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HV_SYNDBG_MSG_RECV,
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HV_SYNDBG_MSG_SET_PENDING_PAGE,
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HV_SYNDBG_MSG_QUERY_OPTIONS
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} HvDbgSynthMsgType;
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typedef struct HvSynDbgMsg {
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HvDbgSynthMsgType type;
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union {
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struct {
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uint32_t host_ip;
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uint16_t host_port;
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} connection_info;
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struct {
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uint64_t buf_gpa;
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uint32_t count;
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uint32_t pending_count;
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bool is_raw;
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} send;
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struct {
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uint64_t buf_gpa;
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uint32_t count;
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uint32_t options;
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uint64_t timeout;
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uint32_t retrieved_count;
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bool is_raw;
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} recv;
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struct {
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uint64_t buf_gpa;
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} pending_page;
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struct {
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uint64_t options;
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} query_options;
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} u;
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} HvSynDbgMsg;
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typedef uint16_t (*HvSynDbgHandler)(void *context, HvSynDbgMsg *msg);
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void hyperv_set_syndbg_handler(HvSynDbgHandler handler, void *context);
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#endif
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