diff options
Diffstat (limited to 'arch/powerpc/include/asm')
| -rw-r--r-- | arch/powerpc/include/asm/kvm_host.h | 21 | ||||
| -rw-r--r-- | arch/powerpc/include/asm/time.h | 3 |
2 files changed, 24 insertions, 0 deletions
diff --git a/arch/powerpc/include/asm/kvm_host.h b/arch/powerpc/include/asm/kvm_host.h index f1d0bbc0f079..d2068bba9059 100644 --- a/arch/powerpc/include/asm/kvm_host.h +++ b/arch/powerpc/include/asm/kvm_host.h @@ -369,6 +369,14 @@ struct kvmppc_slb { u8 base_page_size; /* MMU_PAGE_xxx */ }; +/* Struct used to accumulate timing information in HV real mode code */ +struct kvmhv_tb_accumulator { + u64 seqcount; /* used to synchronize access, also count * 2 */ + u64 tb_total; /* total time in timebase ticks */ + u64 tb_min; /* min time */ + u64 tb_max; /* max time */ +}; + # ifdef CONFIG_PPC_FSL_BOOK3E #define KVMPPC_BOOKE_IAC_NUM 2 #define KVMPPC_BOOKE_DAC_NUM 2 @@ -657,6 +665,19 @@ struct kvm_vcpu_arch { u32 emul_inst; #endif + +#ifdef CONFIG_KVM_BOOK3S_HV_EXIT_TIMING + struct kvmhv_tb_accumulator *cur_activity; /* What we're timing */ + u64 cur_tb_start; /* when it started */ + struct kvmhv_tb_accumulator rm_entry; /* real-mode entry code */ + struct kvmhv_tb_accumulator rm_intr; /* real-mode intr handling */ + struct kvmhv_tb_accumulator rm_exit; /* real-mode exit code */ + struct kvmhv_tb_accumulator guest_time; /* guest execution */ + struct kvmhv_tb_accumulator cede_time; /* time napping inside guest */ + + struct dentry *debugfs_dir; + struct dentry *debugfs_timings; +#endif /* CONFIG_KVM_BOOK3S_HV_EXIT_TIMING */ }; #define VCPU_FPR(vcpu, i) (vcpu)->arch.fp.fpr[i][TS_FPROFFSET] diff --git a/arch/powerpc/include/asm/time.h b/arch/powerpc/include/asm/time.h index 03cbada59d3a..10fc784a2ad4 100644 --- a/arch/powerpc/include/asm/time.h +++ b/arch/powerpc/include/asm/time.h @@ -211,5 +211,8 @@ extern void secondary_cpu_time_init(void); DECLARE_PER_CPU(u64, decrementers_next_tb); +/* Convert timebase ticks to nanoseconds */ +unsigned long long tb_to_ns(unsigned long long tb_ticks); + #endif /* __KERNEL__ */ #endif /* __POWERPC_TIME_H */ |