1*4882a593Smuzhiyun /* SPDX-License-Identifier: GPL-2.0-only */
2*4882a593Smuzhiyun /*
3*4882a593Smuzhiyun *
4*4882a593Smuzhiyun * Copyright IBM Corp. 2008
5*4882a593Smuzhiyun *
6*4882a593Smuzhiyun * Authors: Christian Ehrhardt <ehrhardt@linux.vnet.ibm.com>
7*4882a593Smuzhiyun */
8*4882a593Smuzhiyun
9*4882a593Smuzhiyun #ifndef __POWERPC_KVM_EXITTIMING_H__
10*4882a593Smuzhiyun #define __POWERPC_KVM_EXITTIMING_H__
11*4882a593Smuzhiyun
12*4882a593Smuzhiyun #include <linux/kvm_host.h>
13*4882a593Smuzhiyun
14*4882a593Smuzhiyun #ifdef CONFIG_KVM_EXIT_TIMING
15*4882a593Smuzhiyun void kvmppc_init_timing_stats(struct kvm_vcpu *vcpu);
16*4882a593Smuzhiyun void kvmppc_update_timing_stats(struct kvm_vcpu *vcpu);
17*4882a593Smuzhiyun void kvmppc_create_vcpu_debugfs(struct kvm_vcpu *vcpu, unsigned int id);
18*4882a593Smuzhiyun void kvmppc_remove_vcpu_debugfs(struct kvm_vcpu *vcpu);
19*4882a593Smuzhiyun
kvmppc_set_exit_type(struct kvm_vcpu * vcpu,int type)20*4882a593Smuzhiyun static inline void kvmppc_set_exit_type(struct kvm_vcpu *vcpu, int type)
21*4882a593Smuzhiyun {
22*4882a593Smuzhiyun vcpu->arch.last_exit_type = type;
23*4882a593Smuzhiyun }
24*4882a593Smuzhiyun
25*4882a593Smuzhiyun #else
26*4882a593Smuzhiyun /* if exit timing is not configured there is no need to build the c file */
kvmppc_init_timing_stats(struct kvm_vcpu * vcpu)27*4882a593Smuzhiyun static inline void kvmppc_init_timing_stats(struct kvm_vcpu *vcpu) {}
kvmppc_update_timing_stats(struct kvm_vcpu * vcpu)28*4882a593Smuzhiyun static inline void kvmppc_update_timing_stats(struct kvm_vcpu *vcpu) {}
kvmppc_create_vcpu_debugfs(struct kvm_vcpu * vcpu,unsigned int id)29*4882a593Smuzhiyun static inline void kvmppc_create_vcpu_debugfs(struct kvm_vcpu *vcpu,
30*4882a593Smuzhiyun unsigned int id) {}
kvmppc_remove_vcpu_debugfs(struct kvm_vcpu * vcpu)31*4882a593Smuzhiyun static inline void kvmppc_remove_vcpu_debugfs(struct kvm_vcpu *vcpu) {}
kvmppc_set_exit_type(struct kvm_vcpu * vcpu,int type)32*4882a593Smuzhiyun static inline void kvmppc_set_exit_type(struct kvm_vcpu *vcpu, int type) {}
33*4882a593Smuzhiyun #endif /* CONFIG_KVM_EXIT_TIMING */
34*4882a593Smuzhiyun
35*4882a593Smuzhiyun /* account the exit in kvm_stats */
kvmppc_account_exit_stat(struct kvm_vcpu * vcpu,int type)36*4882a593Smuzhiyun static inline void kvmppc_account_exit_stat(struct kvm_vcpu *vcpu, int type)
37*4882a593Smuzhiyun {
38*4882a593Smuzhiyun /* type has to be known at build time for optimization */
39*4882a593Smuzhiyun
40*4882a593Smuzhiyun /* The BUILD_BUG_ON below breaks in funny ways, commented out
41*4882a593Smuzhiyun * for now ... -BenH
42*4882a593Smuzhiyun BUILD_BUG_ON(!__builtin_constant_p(type));
43*4882a593Smuzhiyun */
44*4882a593Smuzhiyun switch (type) {
45*4882a593Smuzhiyun case EXT_INTR_EXITS:
46*4882a593Smuzhiyun vcpu->stat.ext_intr_exits++;
47*4882a593Smuzhiyun break;
48*4882a593Smuzhiyun case DEC_EXITS:
49*4882a593Smuzhiyun vcpu->stat.dec_exits++;
50*4882a593Smuzhiyun break;
51*4882a593Smuzhiyun case EMULATED_INST_EXITS:
52*4882a593Smuzhiyun vcpu->stat.emulated_inst_exits++;
53*4882a593Smuzhiyun break;
54*4882a593Smuzhiyun case DSI_EXITS:
55*4882a593Smuzhiyun vcpu->stat.dsi_exits++;
56*4882a593Smuzhiyun break;
57*4882a593Smuzhiyun case ISI_EXITS:
58*4882a593Smuzhiyun vcpu->stat.isi_exits++;
59*4882a593Smuzhiyun break;
60*4882a593Smuzhiyun case SYSCALL_EXITS:
61*4882a593Smuzhiyun vcpu->stat.syscall_exits++;
62*4882a593Smuzhiyun break;
63*4882a593Smuzhiyun case DTLB_REAL_MISS_EXITS:
64*4882a593Smuzhiyun vcpu->stat.dtlb_real_miss_exits++;
65*4882a593Smuzhiyun break;
66*4882a593Smuzhiyun case DTLB_VIRT_MISS_EXITS:
67*4882a593Smuzhiyun vcpu->stat.dtlb_virt_miss_exits++;
68*4882a593Smuzhiyun break;
69*4882a593Smuzhiyun case MMIO_EXITS:
70*4882a593Smuzhiyun vcpu->stat.mmio_exits++;
71*4882a593Smuzhiyun break;
72*4882a593Smuzhiyun case ITLB_REAL_MISS_EXITS:
73*4882a593Smuzhiyun vcpu->stat.itlb_real_miss_exits++;
74*4882a593Smuzhiyun break;
75*4882a593Smuzhiyun case ITLB_VIRT_MISS_EXITS:
76*4882a593Smuzhiyun vcpu->stat.itlb_virt_miss_exits++;
77*4882a593Smuzhiyun break;
78*4882a593Smuzhiyun case SIGNAL_EXITS:
79*4882a593Smuzhiyun vcpu->stat.signal_exits++;
80*4882a593Smuzhiyun break;
81*4882a593Smuzhiyun case DBELL_EXITS:
82*4882a593Smuzhiyun vcpu->stat.dbell_exits++;
83*4882a593Smuzhiyun break;
84*4882a593Smuzhiyun case GDBELL_EXITS:
85*4882a593Smuzhiyun vcpu->stat.gdbell_exits++;
86*4882a593Smuzhiyun break;
87*4882a593Smuzhiyun }
88*4882a593Smuzhiyun }
89*4882a593Smuzhiyun
90*4882a593Smuzhiyun /* wrapper to set exit time and account for it in kvm_stats */
kvmppc_account_exit(struct kvm_vcpu * vcpu,int type)91*4882a593Smuzhiyun static inline void kvmppc_account_exit(struct kvm_vcpu *vcpu, int type)
92*4882a593Smuzhiyun {
93*4882a593Smuzhiyun kvmppc_set_exit_type(vcpu, type);
94*4882a593Smuzhiyun kvmppc_account_exit_stat(vcpu, type);
95*4882a593Smuzhiyun }
96*4882a593Smuzhiyun
97*4882a593Smuzhiyun #endif /* __POWERPC_KVM_EXITTIMING_H__ */
98