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1 | /* |
2 | * This program is free software; you can redistribute it and/or modify | |
3 | * it under the terms of the GNU General Public License, version 2, as | |
4 | * published by the Free Software Foundation. | |
5 | * | |
6 | * This program is distributed in the hope that it will be useful, | |
7 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
8 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
9 | * GNU General Public License for more details. | |
10 | * | |
11 | * You should have received a copy of the GNU General Public License | |
12 | * along with this program; if not, write to the Free Software | |
13 | * Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. | |
14 | * | |
15 | * Copyright IBM Corp. 2008 | |
16 | * | |
17 | * Authors: Christian Ehrhardt <ehrhardt@linux.vnet.ibm.com> | |
18 | */ | |
19 | ||
20 | #ifndef __POWERPC_KVM_EXITTIMING_H__ | |
21 | #define __POWERPC_KVM_EXITTIMING_H__ | |
22 | ||
23 | #include <linux/kvm_host.h> | |
24 | #include <asm/kvm_host.h> | |
25 | ||
26 | #ifdef CONFIG_KVM_EXIT_TIMING | |
27 | void kvmppc_init_timing_stats(struct kvm_vcpu *vcpu); | |
28 | void kvmppc_update_timing_stats(struct kvm_vcpu *vcpu); | |
29 | void kvmppc_create_vcpu_debugfs(struct kvm_vcpu *vcpu, unsigned int id); | |
30 | void kvmppc_remove_vcpu_debugfs(struct kvm_vcpu *vcpu); | |
31 | ||
32 | static inline void kvmppc_set_exit_type(struct kvm_vcpu *vcpu, int type) | |
33 | { | |
34 | vcpu->arch.last_exit_type = type; | |
35 | } | |
36 | ||
37 | #else | |
38 | /* if exit timing is not configured there is no need to build the c file */ | |
39 | static inline void kvmppc_init_timing_stats(struct kvm_vcpu *vcpu) {} | |
40 | static inline void kvmppc_update_timing_stats(struct kvm_vcpu *vcpu) {} | |
41 | static inline void kvmppc_create_vcpu_debugfs(struct kvm_vcpu *vcpu, | |
42 | unsigned int id) {} | |
43 | static inline void kvmppc_remove_vcpu_debugfs(struct kvm_vcpu *vcpu) {} | |
44 | static inline void kvmppc_set_exit_type(struct kvm_vcpu *vcpu, int type) {} | |
45 | #endif /* CONFIG_KVM_EXIT_TIMING */ | |
46 | ||
47 | /* account the exit in kvm_stats */ | |
7b701591 | 48 | static inline void kvmppc_account_exit_stat(struct kvm_vcpu *vcpu, int type) |
73e75b41 HB |
49 | { |
50 | /* type has to be known at build time for optimization */ | |
38634e67 BH |
51 | |
52 | /* The BUILD_BUG_ON below breaks in funny ways, commented out | |
53 | * for now ... -BenH | |
c0a187e1 | 54 | BUILD_BUG_ON(!__builtin_constant_p(type)); |
38634e67 | 55 | */ |
73e75b41 HB |
56 | switch (type) { |
57 | case EXT_INTR_EXITS: | |
58 | vcpu->stat.ext_intr_exits++; | |
59 | break; | |
60 | case DEC_EXITS: | |
61 | vcpu->stat.dec_exits++; | |
62 | break; | |
63 | case EMULATED_INST_EXITS: | |
64 | vcpu->stat.emulated_inst_exits++; | |
65 | break; | |
73e75b41 HB |
66 | case DSI_EXITS: |
67 | vcpu->stat.dsi_exits++; | |
68 | break; | |
69 | case ISI_EXITS: | |
70 | vcpu->stat.isi_exits++; | |
71 | break; | |
72 | case SYSCALL_EXITS: | |
73 | vcpu->stat.syscall_exits++; | |
74 | break; | |
75 | case DTLB_REAL_MISS_EXITS: | |
76 | vcpu->stat.dtlb_real_miss_exits++; | |
77 | break; | |
78 | case DTLB_VIRT_MISS_EXITS: | |
79 | vcpu->stat.dtlb_virt_miss_exits++; | |
80 | break; | |
81 | case MMIO_EXITS: | |
82 | vcpu->stat.mmio_exits++; | |
83 | break; | |
84 | case ITLB_REAL_MISS_EXITS: | |
85 | vcpu->stat.itlb_real_miss_exits++; | |
86 | break; | |
87 | case ITLB_VIRT_MISS_EXITS: | |
88 | vcpu->stat.itlb_virt_miss_exits++; | |
89 | break; | |
90 | case SIGNAL_EXITS: | |
91 | vcpu->stat.signal_exits++; | |
92 | break; | |
d30f6e48 SW |
93 | case DBELL_EXITS: |
94 | vcpu->stat.dbell_exits++; | |
95 | break; | |
96 | case GDBELL_EXITS: | |
97 | vcpu->stat.gdbell_exits++; | |
98 | break; | |
73e75b41 HB |
99 | } |
100 | } | |
101 | ||
102 | /* wrapper to set exit time and account for it in kvm_stats */ | |
7b701591 | 103 | static inline void kvmppc_account_exit(struct kvm_vcpu *vcpu, int type) |
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104 | { |
105 | kvmppc_set_exit_type(vcpu, type); | |
7b701591 | 106 | kvmppc_account_exit_stat(vcpu, type); |
73e75b41 HB |
107 | } |
108 | ||
109 | #endif /* __POWERPC_KVM_EXITTIMING_H__ */ |