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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/*
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
27void kvmppc_init_timing_stats(struct kvm_vcpu *vcpu);
28void kvmppc_update_timing_stats(struct kvm_vcpu *vcpu);
29void kvmppc_create_vcpu_debugfs(struct kvm_vcpu *vcpu, unsigned int id);
30void kvmppc_remove_vcpu_debugfs(struct kvm_vcpu *vcpu);
31
32static 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 */
39static inline void kvmppc_init_timing_stats(struct kvm_vcpu *vcpu) {}
40static inline void kvmppc_update_timing_stats(struct kvm_vcpu *vcpu) {}
41static inline void kvmppc_create_vcpu_debugfs(struct kvm_vcpu *vcpu,
42 unsigned int id) {}
43static inline void kvmppc_remove_vcpu_debugfs(struct kvm_vcpu *vcpu) {}
44static 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 */
48static inline void kvmppc_account_exit_stat(struct kvm_vcpu *vcpu, int type)
49{
50 /* type has to be known at build time for optimization */
51
52 /* The BUILD_BUG_ON below breaks in funny ways, commented out
53 * for now ... -BenH
54 BUILD_BUG_ON(!__builtin_constant_p(type));
55 */
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;
66 case DCR_EXITS:
67 vcpu->stat.dcr_exits++;
68 break;
69 case DSI_EXITS:
70 vcpu->stat.dsi_exits++;
71 break;
72 case ISI_EXITS:
73 vcpu->stat.isi_exits++;
74 break;
75 case SYSCALL_EXITS:
76 vcpu->stat.syscall_exits++;
77 break;
78 case DTLB_REAL_MISS_EXITS:
79 vcpu->stat.dtlb_real_miss_exits++;
80 break;
81 case DTLB_VIRT_MISS_EXITS:
82 vcpu->stat.dtlb_virt_miss_exits++;
83 break;
84 case MMIO_EXITS:
85 vcpu->stat.mmio_exits++;
86 break;
87 case ITLB_REAL_MISS_EXITS:
88 vcpu->stat.itlb_real_miss_exits++;
89 break;
90 case ITLB_VIRT_MISS_EXITS:
91 vcpu->stat.itlb_virt_miss_exits++;
92 break;
93 case SIGNAL_EXITS:
94 vcpu->stat.signal_exits++;
95 break;
96 }
97}
98
99/* wrapper to set exit time and account for it in kvm_stats */
100static inline void kvmppc_account_exit(struct kvm_vcpu *vcpu, int type)
101{
102 kvmppc_set_exit_type(vcpu, type);
103 kvmppc_account_exit_stat(vcpu, type);
104}
105
106#endif /* __POWERPC_KVM_EXITTIMING_H__ */