diff options
Diffstat (limited to 'arch/loongarch/include/asm/kvm_host.h')
| -rw-r--r-- | arch/loongarch/include/asm/kvm_host.h | 23 |
1 files changed, 21 insertions, 2 deletions
diff --git a/arch/loongarch/include/asm/kvm_host.h b/arch/loongarch/include/asm/kvm_host.h index 5262cec07182..5552d5142127 100644 --- a/arch/loongarch/include/asm/kvm_host.h +++ b/arch/loongarch/include/asm/kvm_host.h @@ -30,6 +30,7 @@ #define KVM_HALT_POLL_NS_DEFAULT 500000 #define KVM_REQ_TLB_FLUSH_GPA KVM_ARCH_REQ(0) #define KVM_REQ_STEAL_UPDATE KVM_ARCH_REQ(1) +#define KVM_REQ_PMU KVM_ARCH_REQ(2) #define KVM_GUESTDBG_SW_BP_MASK \ (KVM_GUESTDBG_ENABLE | KVM_GUESTDBG_USE_SW_BP) @@ -60,9 +61,13 @@ struct kvm_arch_memory_slot { unsigned long flags; }; +#define HOST_MAX_PMNUM 16 struct kvm_context { unsigned long vpid_cache; struct kvm_vcpu *last_vcpu; + /* Host PMU CSR */ + u64 perf_ctrl[HOST_MAX_PMNUM]; + u64 perf_cntr[HOST_MAX_PMNUM]; }; struct kvm_world_switch { @@ -134,8 +139,9 @@ enum emulation_result { #define KVM_LARCH_LSX (0x1 << 1) #define KVM_LARCH_LASX (0x1 << 2) #define KVM_LARCH_LBT (0x1 << 3) -#define KVM_LARCH_SWCSR_LATEST (0x1 << 4) -#define KVM_LARCH_HWCSR_USABLE (0x1 << 5) +#define KVM_LARCH_PMU (0x1 << 4) +#define KVM_LARCH_SWCSR_LATEST (0x1 << 5) +#define KVM_LARCH_HWCSR_USABLE (0x1 << 6) struct kvm_vcpu_arch { /* @@ -174,6 +180,9 @@ struct kvm_vcpu_arch { /* CSR state */ struct loongarch_csrs *csr; + /* Guest max PMU CSR id */ + int max_pmu_csrid; + /* GPR used as IO source/target */ u32 io_gpr; @@ -246,6 +255,16 @@ static inline bool kvm_guest_has_lbt(struct kvm_vcpu_arch *arch) return arch->cpucfg[2] & (CPUCFG2_X86BT | CPUCFG2_ARMBT | CPUCFG2_MIPSBT); } +static inline bool kvm_guest_has_pmu(struct kvm_vcpu_arch *arch) +{ + return arch->cpucfg[6] & CPUCFG6_PMP; +} + +static inline int kvm_get_pmu_num(struct kvm_vcpu_arch *arch) +{ + return (arch->cpucfg[6] & CPUCFG6_PMNUM) >> CPUCFG6_PMNUM_SHIFT; +} + /* Debug: dump vcpu state */ int kvm_arch_vcpu_dump_regs(struct kvm_vcpu *vcpu); |