1 /* SPDX-License-Identifier: GPL-2.0-only */
4 * Copyright IBM Corp. 2008
6 * Authors: Christian Ehrhardt <ehrhardt@linux.vnet.ibm.com>
9 #ifndef __POWERPC_KVM_EXITTIMING_H__
10 #define __POWERPC_KVM_EXITTIMING_H__
12 #include <linux/kvm_host.h>
14 #ifdef CONFIG_KVM_EXIT_TIMING
15 void kvmppc_init_timing_stats(struct kvm_vcpu
*vcpu
);
16 void kvmppc_update_timing_stats(struct kvm_vcpu
*vcpu
);
17 void kvmppc_create_vcpu_debugfs(struct kvm_vcpu
*vcpu
, unsigned int id
);
18 void kvmppc_remove_vcpu_debugfs(struct kvm_vcpu
*vcpu
);
20 static inline void kvmppc_set_exit_type(struct kvm_vcpu
*vcpu
, int type
)
22 vcpu
->arch
.last_exit_type
= type
;
26 /* if exit timing is not configured there is no need to build the c file */
27 static inline void kvmppc_init_timing_stats(struct kvm_vcpu
*vcpu
) {}
28 static inline void kvmppc_update_timing_stats(struct kvm_vcpu
*vcpu
) {}
29 static inline void kvmppc_create_vcpu_debugfs(struct kvm_vcpu
*vcpu
,
31 static inline void kvmppc_remove_vcpu_debugfs(struct kvm_vcpu
*vcpu
) {}
32 static inline void kvmppc_set_exit_type(struct kvm_vcpu
*vcpu
, int type
) {}
33 #endif /* CONFIG_KVM_EXIT_TIMING */
35 /* account the exit in kvm_stats */
36 static inline void kvmppc_account_exit_stat(struct kvm_vcpu
*vcpu
, int type
)
38 /* type has to be known at build time for optimization */
40 /* The BUILD_BUG_ON below breaks in funny ways, commented out
42 BUILD_BUG_ON(!__builtin_constant_p(type));
46 vcpu
->stat
.ext_intr_exits
++;
49 vcpu
->stat
.dec_exits
++;
51 case EMULATED_INST_EXITS
:
52 vcpu
->stat
.emulated_inst_exits
++;
55 vcpu
->stat
.dsi_exits
++;
58 vcpu
->stat
.isi_exits
++;
61 vcpu
->stat
.syscall_exits
++;
63 case DTLB_REAL_MISS_EXITS
:
64 vcpu
->stat
.dtlb_real_miss_exits
++;
66 case DTLB_VIRT_MISS_EXITS
:
67 vcpu
->stat
.dtlb_virt_miss_exits
++;
70 vcpu
->stat
.mmio_exits
++;
72 case ITLB_REAL_MISS_EXITS
:
73 vcpu
->stat
.itlb_real_miss_exits
++;
75 case ITLB_VIRT_MISS_EXITS
:
76 vcpu
->stat
.itlb_virt_miss_exits
++;
79 vcpu
->stat
.signal_exits
++;
82 vcpu
->stat
.dbell_exits
++;
85 vcpu
->stat
.gdbell_exits
++;
90 /* wrapper to set exit time and account for it in kvm_stats */
91 static inline void kvmppc_account_exit(struct kvm_vcpu
*vcpu
, int type
)
93 kvmppc_set_exit_type(vcpu
, type
);
94 kvmppc_account_exit_stat(vcpu
, type
);
97 #endif /* __POWERPC_KVM_EXITTIMING_H__ */