From 2c3c1048746a4622d8c89a29670120dc8fab93c4 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 7 Apr 2024 20:49:45 +0200 Subject: Adding upstream version 6.1.76. Signed-off-by: Daniel Baumann --- arch/powerpc/kvm/timing.h | 99 +++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 99 insertions(+) create mode 100644 arch/powerpc/kvm/timing.h (limited to 'arch/powerpc/kvm/timing.h') diff --git a/arch/powerpc/kvm/timing.h b/arch/powerpc/kvm/timing.h new file mode 100644 index 000000000..45817ab82 --- /dev/null +++ b/arch/powerpc/kvm/timing.h @@ -0,0 +1,99 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * + * Copyright IBM Corp. 2008 + * + * Authors: Christian Ehrhardt + */ + +#ifndef __POWERPC_KVM_EXITTIMING_H__ +#define __POWERPC_KVM_EXITTIMING_H__ + +#include + +#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__ */ -- cgit v1.2.3