diff options
Diffstat (limited to 'src/include/xen/event_channel.h')
| -rw-r--r-- | src/include/xen/event_channel.h | 50 |
1 files changed, 20 insertions, 30 deletions
diff --git a/src/include/xen/event_channel.h b/src/include/xen/event_channel.h index 356e946d7..0c3752723 100644 --- a/src/include/xen/event_channel.h +++ b/src/include/xen/event_channel.h @@ -1,26 +1,9 @@ +/* SPDX-License-Identifier: MIT */ /****************************************************************************** * event_channel.h * * Event channels between domains. * - * Permission is hereby granted, free of charge, to any person obtaining a copy - * of this software and associated documentation files (the "Software"), to - * deal in the Software without restriction, including without limitation the - * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or - * sell copies of the Software, and to permit persons to whom the Software is - * furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included in - * all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE - * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER - * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING - * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER - * DEALINGS IN THE SOFTWARE. - * * Copyright (c) 2003-2004, K A Fraser. */ @@ -76,6 +59,9 @@ FILE_LICENCE ( MIT ); #define EVTCHNOP_init_control 11 #define EVTCHNOP_expand_array 12 #define EVTCHNOP_set_priority 13 +#ifdef __XEN__ +#define EVTCHNOP_reset_cont 14 +#endif /* ` } */ typedef uint32_t evtchn_port_t; @@ -87,7 +73,7 @@ DEFINE_XEN_GUEST_HANDLE(evtchn_port_t); * is allocated in <dom> and returned as <port>. * NOTES: * 1. If the caller is unprivileged then <dom> must be DOMID_SELF. - * 2. <rdom> may be DOMID_SELF, allowing loopback connections. + * 2. <remote_dom> may be DOMID_SELF, allowing loopback connections. */ struct evtchn_alloc_unbound { /* IN parameters */ @@ -266,6 +252,10 @@ typedef struct evtchn_unmask evtchn_unmask_t; * NOTES: * 1. <dom> may be specified as DOMID_SELF. * 2. Only a sufficiently-privileged domain may specify other than DOMID_SELF. + * 3. Destroys all control blocks and event array, resets event channel + * operations to 2-level ABI if called with <dom> == DOMID_SELF and FIFO + * ABI was used. Guests should not bind events during EVTCHNOP_reset call + * as these events are likely to be lost. */ struct evtchn_reset { /* IN parameters. */ @@ -305,7 +295,7 @@ typedef struct evtchn_expand_array evtchn_expand_array_t; */ struct evtchn_set_priority { /* IN parameters. */ - uint32_t port; + evtchn_port_t port; uint32_t priority; }; typedef struct evtchn_set_priority evtchn_set_priority_t; @@ -319,16 +309,16 @@ typedef struct evtchn_set_priority evtchn_set_priority_t; struct evtchn_op { uint32_t cmd; /* enum event_channel_op */ union { - struct evtchn_alloc_unbound alloc_unbound; - struct evtchn_bind_interdomain bind_interdomain; - struct evtchn_bind_virq bind_virq; - struct evtchn_bind_pirq bind_pirq; - struct evtchn_bind_ipi bind_ipi; - struct evtchn_close close; - struct evtchn_send send; - struct evtchn_status status; - struct evtchn_bind_vcpu bind_vcpu; - struct evtchn_unmask unmask; + evtchn_alloc_unbound_t alloc_unbound; + evtchn_bind_interdomain_t bind_interdomain; + evtchn_bind_virq_t bind_virq; + evtchn_bind_pirq_t bind_pirq; + evtchn_bind_ipi_t bind_ipi; + evtchn_close_t close; + evtchn_send_t send; + evtchn_status_t status; + evtchn_bind_vcpu_t bind_vcpu; + evtchn_unmask_t unmask; } u; }; typedef struct evtchn_op evtchn_op_t; |