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1/* SPDX-License-Identifier: GPL-2.0-only */
2/*
3 *
4 * Copyright IBM Corp. 2008
5 *
6 * Authors: Christian Ehrhardt <ehrhardt@linux.vnet.ibm.com>
7 */
8
9#ifndef __POWERPC_KVM_EXITTIMING_H__
10#define __POWERPC_KVM_EXITTIMING_H__
11
12#include <linux/kvm_host.h>
13
14#ifdef CONFIG_KVM_EXIT_TIMING
15void kvmppc_init_timing_stats(struct kvm_vcpu *vcpu);
16void kvmppc_update_timing_stats(struct kvm_vcpu *vcpu);
17int kvmppc_create_vcpu_debugfs_e500(struct kvm_vcpu *vcpu,
18 struct dentry *debugfs_dentry);
19
20static inline void kvmppc_set_exit_type(struct kvm_vcpu *vcpu, int type)
21{
22 vcpu->arch.last_exit_type = type;
23}
24
25#else
26/* if exit timing is not configured there is no need to build the c file */
27static inline void kvmppc_init_timing_stats(struct kvm_vcpu *vcpu) {}
28static inline void kvmppc_update_timing_stats(struct kvm_vcpu *vcpu) {}
29static inline int kvmppc_create_vcpu_debugfs_e500(struct kvm_vcpu *vcpu,
30 struct dentry *debugfs_dentry)
31{
32 return 0;
33}
34static inline void kvmppc_set_exit_type(struct kvm_vcpu *vcpu, int type) {}
35#endif /* CONFIG_KVM_EXIT_TIMING */
36
37/* account the exit in kvm_stats */
38static inline void kvmppc_account_exit_stat(struct kvm_vcpu *vcpu, int type)
39{
40 /* type has to be known at build time for optimization */
41
42 /* The BUILD_BUG_ON below breaks in funny ways, commented out
43 * for now ... -BenH
44 BUILD_BUG_ON(!__builtin_constant_p(type));
45 */
46 switch (type) {
47 case EXT_INTR_EXITS:
48 vcpu->stat.ext_intr_exits++;
49 break;
50 case DEC_EXITS:
51 vcpu->stat.dec_exits++;
52 break;
53 case EMULATED_INST_EXITS:
54 vcpu->stat.emulated_inst_exits++;
55 break;
56 case DSI_EXITS:
57 vcpu->stat.dsi_exits++;
58 break;
59 case ISI_EXITS:
60 vcpu->stat.isi_exits++;
61 break;
62 case SYSCALL_EXITS:
63 vcpu->stat.syscall_exits++;
64 break;
65 case DTLB_REAL_MISS_EXITS:
66 vcpu->stat.dtlb_real_miss_exits++;
67 break;
68 case DTLB_VIRT_MISS_EXITS:
69 vcpu->stat.dtlb_virt_miss_exits++;
70 break;
71 case MMIO_EXITS:
72 vcpu->stat.mmio_exits++;
73 break;
74 case ITLB_REAL_MISS_EXITS:
75 vcpu->stat.itlb_real_miss_exits++;
76 break;
77 case ITLB_VIRT_MISS_EXITS:
78 vcpu->stat.itlb_virt_miss_exits++;
79 break;
80 case SIGNAL_EXITS:
81 vcpu->stat.signal_exits++;
82 break;
83 case DBELL_EXITS:
84 vcpu->stat.dbell_exits++;
85 break;
86 case GDBELL_EXITS:
87 vcpu->stat.gdbell_exits++;
88 break;
89 }
90}
91
92/* wrapper to set exit time and account for it in kvm_stats */
93static inline void kvmppc_account_exit(struct kvm_vcpu *vcpu, int type)
94{
95 kvmppc_set_exit_type(vcpu, type);
96 kvmppc_account_exit_stat(vcpu, type);
97}
98
99#endif /* __POWERPC_KVM_EXITTIMING_H__ */
1/* SPDX-License-Identifier: GPL-2.0-only */
2/*
3 *
4 * Copyright IBM Corp. 2008
5 *
6 * Authors: Christian Ehrhardt <ehrhardt@linux.vnet.ibm.com>
7 */
8
9#ifndef __POWERPC_KVM_EXITTIMING_H__
10#define __POWERPC_KVM_EXITTIMING_H__
11
12#include <linux/kvm_host.h>
13#include <asm/kvm_host.h>
14
15#ifdef CONFIG_KVM_EXIT_TIMING
16void kvmppc_init_timing_stats(struct kvm_vcpu *vcpu);
17void kvmppc_update_timing_stats(struct kvm_vcpu *vcpu);
18void kvmppc_create_vcpu_debugfs(struct kvm_vcpu *vcpu, unsigned int id);
19void kvmppc_remove_vcpu_debugfs(struct kvm_vcpu *vcpu);
20
21static inline void kvmppc_set_exit_type(struct kvm_vcpu *vcpu, int type)
22{
23 vcpu->arch.last_exit_type = type;
24}
25
26#else
27/* if exit timing is not configured there is no need to build the c file */
28static inline void kvmppc_init_timing_stats(struct kvm_vcpu *vcpu) {}
29static inline void kvmppc_update_timing_stats(struct kvm_vcpu *vcpu) {}
30static inline void kvmppc_create_vcpu_debugfs(struct kvm_vcpu *vcpu,
31 unsigned int id) {}
32static inline void kvmppc_remove_vcpu_debugfs(struct kvm_vcpu *vcpu) {}
33static inline void kvmppc_set_exit_type(struct kvm_vcpu *vcpu, int type) {}
34#endif /* CONFIG_KVM_EXIT_TIMING */
35
36/* account the exit in kvm_stats */
37static inline void kvmppc_account_exit_stat(struct kvm_vcpu *vcpu, int type)
38{
39 /* type has to be known at build time for optimization */
40
41 /* The BUILD_BUG_ON below breaks in funny ways, commented out
42 * for now ... -BenH
43 BUILD_BUG_ON(!__builtin_constant_p(type));
44 */
45 switch (type) {
46 case EXT_INTR_EXITS:
47 vcpu->stat.ext_intr_exits++;
48 break;
49 case DEC_EXITS:
50 vcpu->stat.dec_exits++;
51 break;
52 case EMULATED_INST_EXITS:
53 vcpu->stat.emulated_inst_exits++;
54 break;
55 case DSI_EXITS:
56 vcpu->stat.dsi_exits++;
57 break;
58 case ISI_EXITS:
59 vcpu->stat.isi_exits++;
60 break;
61 case SYSCALL_EXITS:
62 vcpu->stat.syscall_exits++;
63 break;
64 case DTLB_REAL_MISS_EXITS:
65 vcpu->stat.dtlb_real_miss_exits++;
66 break;
67 case DTLB_VIRT_MISS_EXITS:
68 vcpu->stat.dtlb_virt_miss_exits++;
69 break;
70 case MMIO_EXITS:
71 vcpu->stat.mmio_exits++;
72 break;
73 case ITLB_REAL_MISS_EXITS:
74 vcpu->stat.itlb_real_miss_exits++;
75 break;
76 case ITLB_VIRT_MISS_EXITS:
77 vcpu->stat.itlb_virt_miss_exits++;
78 break;
79 case SIGNAL_EXITS:
80 vcpu->stat.signal_exits++;
81 break;
82 case DBELL_EXITS:
83 vcpu->stat.dbell_exits++;
84 break;
85 case GDBELL_EXITS:
86 vcpu->stat.gdbell_exits++;
87 break;
88 }
89}
90
91/* wrapper to set exit time and account for it in kvm_stats */
92static inline void kvmppc_account_exit(struct kvm_vcpu *vcpu, int type)
93{
94 kvmppc_set_exit_type(vcpu, type);
95 kvmppc_account_exit_stat(vcpu, type);
96}
97
98#endif /* __POWERPC_KVM_EXITTIMING_H__ */