/root/src/xen/xen/include/xen/vm_event.h
Line | Count | Source (jump to first uncovered line) |
1 | | /****************************************************************************** |
2 | | * vm_event.h |
3 | | * |
4 | | * Common interface for memory event support. |
5 | | * |
6 | | * Copyright (c) 2009 Citrix Systems, Inc. (Patrick Colp) |
7 | | * |
8 | | * This program is free software; you can redistribute it and/or modify |
9 | | * it under the terms of the GNU General Public License as published by |
10 | | * the Free Software Foundation; either version 2 of the License, or |
11 | | * (at your option) any later version. |
12 | | * |
13 | | * This program is distributed in the hope that it will be useful, |
14 | | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
15 | | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
16 | | * GNU General Public License for more details. |
17 | | * |
18 | | * You should have received a copy of the GNU General Public License |
19 | | * along with this program; If not, see <http://www.gnu.org/licenses/>. |
20 | | */ |
21 | | |
22 | | |
23 | | #ifndef __VM_EVENT_H__ |
24 | | #define __VM_EVENT_H__ |
25 | | |
26 | | #include <xen/sched.h> |
27 | | #include <public/vm_event.h> |
28 | | |
29 | | /* Clean up on domain destruction */ |
30 | | void vm_event_cleanup(struct domain *d); |
31 | | |
32 | | /* Returns whether a ring has been set up */ |
33 | | bool_t vm_event_check_ring(struct vm_event_domain *ved); |
34 | | |
35 | | /* Returns 0 on success, -ENOSYS if there is no ring, -EBUSY if there is no |
36 | | * available space and the caller is a foreign domain. If the guest itself |
37 | | * is the caller, -EBUSY is avoided by sleeping on a wait queue to ensure |
38 | | * that the ring does not lose future events. |
39 | | * |
40 | | * However, the allow_sleep flag can be set to false in cases in which it is ok |
41 | | * to lose future events, and thus -EBUSY can be returned to guest vcpus |
42 | | * (handle with care!). |
43 | | * |
44 | | * In general, you must follow a claim_slot() call with either put_request() or |
45 | | * cancel_slot(), both of which are guaranteed to |
46 | | * succeed. |
47 | | */ |
48 | | int __vm_event_claim_slot(struct domain *d, struct vm_event_domain *ved, |
49 | | bool_t allow_sleep); |
50 | | static inline int vm_event_claim_slot(struct domain *d, |
51 | | struct vm_event_domain *ved) |
52 | 0 | { |
53 | 0 | return __vm_event_claim_slot(d, ved, 1); |
54 | 0 | } Unexecuted instantiation: domctl.c:vm_event_claim_slot Unexecuted instantiation: domain.c:vm_event_claim_slot Unexecuted instantiation: mem_access.c:vm_event_claim_slot Unexecuted instantiation: monitor.c:vm_event_claim_slot Unexecuted instantiation: vm_event.c:vm_event_claim_slot Unexecuted instantiation: pci.c:vm_event_claim_slot Unexecuted instantiation: emulate.c:vm_event_claim_slot Unexecuted instantiation: vmcs.c:vm_event_claim_slot Unexecuted instantiation: p2m.c:vm_event_claim_slot Unexecuted instantiation: p2m-pt.c:vm_event_claim_slot Unexecuted instantiation: mem_paging.c:vm_event_claim_slot Unexecuted instantiation: mem_sharing.c:vm_event_claim_slot Unexecuted instantiation: nested_hap.c:vm_event_claim_slot Unexecuted instantiation: nested_ept.c:vm_event_claim_slot |
55 | | |
56 | | static inline int vm_event_claim_slot_nosleep(struct domain *d, |
57 | | struct vm_event_domain *ved) |
58 | 0 | { |
59 | 0 | return __vm_event_claim_slot(d, ved, 0); |
60 | 0 | } Unexecuted instantiation: domctl.c:vm_event_claim_slot_nosleep Unexecuted instantiation: domain.c:vm_event_claim_slot_nosleep Unexecuted instantiation: mem_access.c:vm_event_claim_slot_nosleep Unexecuted instantiation: monitor.c:vm_event_claim_slot_nosleep Unexecuted instantiation: vm_event.c:vm_event_claim_slot_nosleep Unexecuted instantiation: pci.c:vm_event_claim_slot_nosleep Unexecuted instantiation: emulate.c:vm_event_claim_slot_nosleep Unexecuted instantiation: vmcs.c:vm_event_claim_slot_nosleep Unexecuted instantiation: p2m.c:vm_event_claim_slot_nosleep Unexecuted instantiation: p2m-pt.c:vm_event_claim_slot_nosleep Unexecuted instantiation: mem_paging.c:vm_event_claim_slot_nosleep Unexecuted instantiation: mem_sharing.c:vm_event_claim_slot_nosleep Unexecuted instantiation: nested_hap.c:vm_event_claim_slot_nosleep Unexecuted instantiation: nested_ept.c:vm_event_claim_slot_nosleep |
61 | | |
62 | | void vm_event_cancel_slot(struct domain *d, struct vm_event_domain *ved); |
63 | | |
64 | | void vm_event_put_request(struct domain *d, struct vm_event_domain *ved, |
65 | | vm_event_request_t *req); |
66 | | |
67 | | int vm_event_get_response(struct domain *d, struct vm_event_domain *ved, |
68 | | vm_event_response_t *rsp); |
69 | | |
70 | | void vm_event_resume(struct domain *d, struct vm_event_domain *ved); |
71 | | |
72 | | int vm_event_domctl(struct domain *d, struct xen_domctl_vm_event_op *vec, |
73 | | XEN_GUEST_HANDLE_PARAM(void) u_domctl); |
74 | | |
75 | | void vm_event_vcpu_pause(struct vcpu *v); |
76 | | void vm_event_vcpu_unpause(struct vcpu *v); |
77 | | |
78 | | void vm_event_fill_regs(vm_event_request_t *req); |
79 | | void vm_event_set_registers(struct vcpu *v, vm_event_response_t *rsp); |
80 | | |
81 | | void vm_event_monitor_next_interrupt(struct vcpu *v); |
82 | | |
83 | | #endif /* __VM_EVENT_H__ */ |
84 | | |
85 | | /* |
86 | | * Local variables: |
87 | | * mode: C |
88 | | * c-file-style: "BSD" |
89 | | * c-basic-offset: 4 |
90 | | * indent-tabs-mode: nil |
91 | | * End: |
92 | | */ |