/root/src/xen/xen/include/asm/pv/traps.h
Line | Count | Source (jump to first uncovered line) |
1 | | /* |
2 | | * pv/traps.h |
3 | | * |
4 | | * PV guest traps interface definitions |
5 | | * |
6 | | * Copyright (C) 2017 Wei Liu <wei.liu2@citrix.com> |
7 | | * |
8 | | * This program is free software; you can redistribute it and/or |
9 | | * modify it under the terms and conditions of the GNU General Public |
10 | | * License, version 2, as published by the Free Software Foundation. |
11 | | * |
12 | | * This program is distributed in the hope that it will be useful, |
13 | | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
14 | | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
15 | | * General Public License for more details. |
16 | | * |
17 | | * You should have received a copy of the GNU General Public |
18 | | * License along with this program; If not, see <http://www.gnu.org/licenses/>. |
19 | | */ |
20 | | |
21 | | #ifndef __X86_PV_TRAPS_H__ |
22 | | #define __X86_PV_TRAPS_H__ |
23 | | |
24 | | #ifdef CONFIG_PV |
25 | | |
26 | | #include <public/xen.h> |
27 | | |
28 | | void pv_trap_init(void); |
29 | | |
30 | | /* Deliver interrupt to PV guest. Return 0 on success. */ |
31 | | int pv_raise_interrupt(struct vcpu *v, uint8_t vector); |
32 | | |
33 | | int pv_emulate_privileged_op(struct cpu_user_regs *regs); |
34 | | void pv_emulate_gate_op(struct cpu_user_regs *regs); |
35 | | bool pv_emulate_invalid_op(struct cpu_user_regs *regs); |
36 | | |
37 | | static inline bool pv_trap_callback_registered(const struct vcpu *v, |
38 | | uint8_t vector) |
39 | 0 | { |
40 | 0 | return v->arch.pv_vcpu.trap_ctxt[vector].address; |
41 | 0 | } Unexecuted instantiation: traps.c:pv_trap_callback_registered Unexecuted instantiation: vmce.c:pv_trap_callback_registered Unexecuted instantiation: emul-gate-op.c:pv_trap_callback_registered Unexecuted instantiation: emul-inv-op.c:pv_trap_callback_registered Unexecuted instantiation: emul-priv-op.c:pv_trap_callback_registered |
42 | | |
43 | | #else /* !CONFIG_PV */ |
44 | | |
45 | | #include <xen/errno.h> |
46 | | |
47 | | static inline void pv_trap_init(void) {} |
48 | | |
49 | | /* Deliver interrupt to PV guest. Return 0 on success. */ |
50 | | static int pv_raise_interrupt(struct vcpu *v, uint8_t vector) { return -EOPNOTSUPP; } |
51 | | |
52 | | static inline int pv_emulate_privileged_op(struct cpu_user_regs *regs) { return 0; } |
53 | | static inline void pv_emulate_gate_op(struct cpu_user_regs *regs) {} |
54 | | static inline bool pv_emulate_invalid_op(struct cpu_user_regs *regs) { return true; } |
55 | | |
56 | | static inline bool pv_trap_callback_registered(const struct vcpu *v, |
57 | | uint8_t vector) |
58 | | { |
59 | | return false; |
60 | | } |
61 | | #endif /* CONFIG_PV */ |
62 | | |
63 | | #endif /* __X86_PV_TRAPS_H__ */ |
64 | | |
65 | | /* |
66 | | * Local variables: |
67 | | * mode: C |
68 | | * c-file-style: "BSD" |
69 | | * c-basic-offset: 4 |
70 | | * tab-width: 4 |
71 | | * indent-tabs-mode: nil |
72 | | * End: |
73 | | */ |