diff options
| author | Roman Kagan <rkagan@virtuozzo.com> | 2018-09-21 11:22:16 +0300 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2018-10-19 13:44:14 +0200 |
| commit | 76036a5fc7ca632f805748aeef416355b1d212a3 (patch) | |
| tree | 88ecf75fe76e18d8bdd4f13f206236b97fc36b63 /include/hw/hyperv | |
| parent | 8d3bc0b75318dce70928b8bde1a49e632adf5137 (diff) | |
hyperv: process POST_MESSAGE hypercall
Add handling of POST_MESSAGE hypercall. For that, add an interface to
regsiter a handler for the messages arrived from the guest on a
particular connection id (IOW set up a message connection in Hyper-V
speak).
Signed-off-by: Roman Kagan <rkagan@virtuozzo.com>
Message-Id: <20180921082217.29481-10-rkagan@virtuozzo.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'include/hw/hyperv')
| -rw-r--r-- | include/hw/hyperv/hyperv.h | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/include/hw/hyperv/hyperv.h b/include/hw/hyperv/hyperv.h index df92ed7e66..597381cb01 100644 --- a/include/hw/hyperv/hyperv.h +++ b/include/hw/hyperv/hyperv.h @@ -40,6 +40,18 @@ int hyperv_post_msg(HvSintRoute *sint_route, struct hyperv_message *msg); int hyperv_set_event_flag(HvSintRoute *sint_route, unsigned eventno); /* + * Handler for messages arriving from the guest via HV_POST_MESSAGE hypercall. + * Executed in vcpu context. + */ +typedef uint16_t (*HvMsgHandler)(const struct hyperv_post_message_input *msg, + void *data); +/* + * Associate @handler with the message connection @conn_id, such that @handler + * is called with @data when the guest executes HV_POST_MESSAGE hypercall on + * @conn_id. If @handler is NULL clear the association. + */ +int hyperv_set_msg_handler(uint32_t conn_id, HvMsgHandler handler, void *data); +/* * 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. @@ -47,6 +59,12 @@ int hyperv_set_event_flag(HvSintRoute *sint_route, unsigned eventno); int hyperv_set_event_flag_handler(uint32_t conn_id, EventNotifier *notifier); /* + * Process HV_POST_MESSAGE hypercall: parse the data in the guest memory as + * specified in @param, and call the HvMsgHandler associated with the + * connection on the message contained therein. + */ +uint16_t hyperv_hcall_post_message(uint64_t param, bool fast); +/* * Process HV_SIGNAL_EVENT hypercall: signal the EventNotifier associated with * the connection as specified in @param. */ |