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- /* SPDX-License-Identifier: GPL-2.0-only */
- /*
- *
- * Copyright IBM Corp. 2008
- *
- * Authors: Christian Ehrhardt <[email protected]>
- */
- #ifndef __POWERPC_KVM_EXITTIMING_H__
- #define __POWERPC_KVM_EXITTIMING_H__
- #include <linux/kvm_host.h>
- #ifdef CONFIG_KVM_EXIT_TIMING
- void kvmppc_init_timing_stats(struct kvm_vcpu *vcpu);
- void kvmppc_update_timing_stats(struct kvm_vcpu *vcpu);
- int kvmppc_create_vcpu_debugfs_e500(struct kvm_vcpu *vcpu,
- struct dentry *debugfs_dentry);
- static inline void kvmppc_set_exit_type(struct kvm_vcpu *vcpu, int type)
- {
- vcpu->arch.last_exit_type = type;
- }
- #else
- /* if exit timing is not configured there is no need to build the c file */
- static inline void kvmppc_init_timing_stats(struct kvm_vcpu *vcpu) {}
- static inline void kvmppc_update_timing_stats(struct kvm_vcpu *vcpu) {}
- static inline int kvmppc_create_vcpu_debugfs_e500(struct kvm_vcpu *vcpu,
- struct dentry *debugfs_dentry)
- {
- return 0;
- }
- static inline void kvmppc_set_exit_type(struct kvm_vcpu *vcpu, int type) {}
- #endif /* CONFIG_KVM_EXIT_TIMING */
- /* account the exit in kvm_stats */
- static inline void kvmppc_account_exit_stat(struct kvm_vcpu *vcpu, int type)
- {
- /* type has to be known at build time for optimization */
- /* The BUILD_BUG_ON below breaks in funny ways, commented out
- * for now ... -BenH
- BUILD_BUG_ON(!__builtin_constant_p(type));
- */
- switch (type) {
- case EXT_INTR_EXITS:
- vcpu->stat.ext_intr_exits++;
- break;
- case DEC_EXITS:
- vcpu->stat.dec_exits++;
- break;
- case EMULATED_INST_EXITS:
- vcpu->stat.emulated_inst_exits++;
- break;
- case DSI_EXITS:
- vcpu->stat.dsi_exits++;
- break;
- case ISI_EXITS:
- vcpu->stat.isi_exits++;
- break;
- case SYSCALL_EXITS:
- vcpu->stat.syscall_exits++;
- break;
- case DTLB_REAL_MISS_EXITS:
- vcpu->stat.dtlb_real_miss_exits++;
- break;
- case DTLB_VIRT_MISS_EXITS:
- vcpu->stat.dtlb_virt_miss_exits++;
- break;
- case MMIO_EXITS:
- vcpu->stat.mmio_exits++;
- break;
- case ITLB_REAL_MISS_EXITS:
- vcpu->stat.itlb_real_miss_exits++;
- break;
- case ITLB_VIRT_MISS_EXITS:
- vcpu->stat.itlb_virt_miss_exits++;
- break;
- case SIGNAL_EXITS:
- vcpu->stat.signal_exits++;
- break;
- case DBELL_EXITS:
- vcpu->stat.dbell_exits++;
- break;
- case GDBELL_EXITS:
- vcpu->stat.gdbell_exits++;
- break;
- }
- }
- /* wrapper to set exit time and account for it in kvm_stats */
- static inline void kvmppc_account_exit(struct kvm_vcpu *vcpu, int type)
- {
- kvmppc_set_exit_type(vcpu, type);
- kvmppc_account_exit_stat(vcpu, type);
- }
- #endif /* __POWERPC_KVM_EXITTIMING_H__ */
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