diff options
Diffstat (limited to 'arch/loongarch/include/asm/kvm_host.h')
| -rw-r--r-- | arch/loongarch/include/asm/kvm_host.h | 87 |
1 files changed, 81 insertions, 6 deletions
diff --git a/arch/loongarch/include/asm/kvm_host.h b/arch/loongarch/include/asm/kvm_host.h index 2d62f7b0d377..d6bb72424027 100644 --- a/arch/loongarch/include/asm/kvm_host.h +++ b/arch/loongarch/include/asm/kvm_host.h @@ -26,10 +26,19 @@ #define KVM_MAX_VCPUS 256 #define KVM_MAX_CPUCFG_REGS 21 -/* memory slots that does not exposed to userspace */ -#define KVM_PRIVATE_MEM_SLOTS 0 #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) +#define KVM_GUESTDBG_VALID_MASK \ + (KVM_GUESTDBG_ENABLE | KVM_GUESTDBG_USE_SW_BP | KVM_GUESTDBG_SINGLESTEP) + +#define KVM_DIRTY_LOG_MANUAL_CAPS \ + (KVM_DIRTY_LOG_MANUAL_PROTECT_ENABLE | KVM_DIRTY_LOG_INITIALLY_SET) struct kvm_vm_stat { struct kvm_vm_stat_generic generic; @@ -43,6 +52,7 @@ struct kvm_vcpu_stat { u64 idle_exits; u64 cpucfg_exits; u64 signal_exits; + u64 hypercall_exits; }; #define KVM_MEM_HUGEPAGE_CAPABLE (1UL << 0) @@ -51,9 +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 { @@ -64,6 +78,31 @@ struct kvm_world_switch { #define MAX_PGTABLE_LEVELS 4 +/* + * Physical CPUID is used for interrupt routing, there are different + * definitions about physical cpuid on different hardwares. + * + * For LOONGARCH_CSR_CPUID register, max CPUID size if 512 + * For IPI hardware, max destination CPUID size 1024 + * For extioi interrupt controller, max destination CPUID size is 256 + * For msgint interrupt controller, max supported CPUID size is 65536 + * + * Currently max CPUID is defined as 256 for KVM hypervisor, in future + * it will be expanded to 4096, including 16 packages at most. And every + * package supports at most 256 vcpus + */ +#define KVM_MAX_PHYID 256 + +struct kvm_phyid_info { + struct kvm_vcpu *vcpu; + bool enabled; +}; + +struct kvm_phyid_map { + int max_phyid; + struct kvm_phyid_info phys_map[KVM_MAX_PHYID]; +}; + struct kvm_arch { /* Guest physical mm */ kvm_pte_t *pgd; @@ -71,6 +110,10 @@ struct kvm_arch { unsigned long invalid_ptes[MAX_PGTABLE_LEVELS]; unsigned int pte_shifts[MAX_PGTABLE_LEVELS]; unsigned int root_level; + spinlock_t phyid_map_lock; + struct kvm_phyid_map *phyid_map; + /* Enabled PV features */ + unsigned long pv_features; s64 time_offset; struct kvm_context __percpu *vmcs; @@ -97,8 +140,15 @@ enum emulation_result { #define KVM_LARCH_FPU (0x1 << 0) #define KVM_LARCH_LSX (0x1 << 1) #define KVM_LARCH_LASX (0x1 << 2) -#define KVM_LARCH_SWCSR_LATEST (0x1 << 3) -#define KVM_LARCH_HWCSR_USABLE (0x1 << 4) +#define KVM_LARCH_LBT (0x1 << 3) +#define KVM_LARCH_PMU (0x1 << 4) +#define KVM_LARCH_SWCSR_LATEST (0x1 << 5) +#define KVM_LARCH_HWCSR_USABLE (0x1 << 6) + +#define LOONGARCH_PV_FEAT_UPDATED BIT_ULL(63) +#define LOONGARCH_PV_FEAT_MASK (BIT(KVM_FEATURE_IPI) | \ + BIT(KVM_FEATURE_STEAL_TIME) | \ + BIT(KVM_FEATURE_VIRT_EXTIOI)) struct kvm_vcpu_arch { /* @@ -132,10 +182,14 @@ struct kvm_vcpu_arch { /* FPU state */ struct loongarch_fpu fpu FPU_ALIGN; + struct loongarch_lbt lbt; /* CSR state */ struct loongarch_csrs *csr; + /* Guest max PMU CSR id */ + int max_pmu_csrid; + /* GPR used as IO source/target */ u32 io_gpr; @@ -157,6 +211,7 @@ struct kvm_vcpu_arch { /* vcpu's vpid */ u64 vpid; + gpa_t flush_gpa; /* Frequency of stable timer in Hz */ u64 timer_mhz; @@ -168,6 +223,13 @@ struct kvm_vcpu_arch { struct kvm_mp_state mp_state; /* cpucfg */ u32 cpucfg[KVM_MAX_CPUCFG_REGS]; + + /* paravirt steal time */ + struct { + u64 guest_addr; + u64 last_steal; + struct gfn_to_hva_cache cache; + } st; }; static inline unsigned long readl_sw_gcsr(struct loongarch_csrs *csr, int reg) @@ -195,6 +257,21 @@ static inline bool kvm_guest_has_lasx(struct kvm_vcpu_arch *arch) return arch->cpucfg[2] & CPUCFG2_LASX; } +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); @@ -203,7 +280,6 @@ void kvm_flush_tlb_all(void); void kvm_flush_tlb_gpa(struct kvm_vcpu *vcpu, unsigned long gpa); int kvm_handle_mm_fault(struct kvm_vcpu *vcpu, unsigned long badv, bool write); -void kvm_set_spte_hva(struct kvm *kvm, unsigned long hva, pte_t pte); int kvm_unmap_hva_range(struct kvm *kvm, unsigned long start, unsigned long end, bool blockable); int kvm_age_hva(struct kvm *kvm, unsigned long start, unsigned long end); int kvm_test_age_hva(struct kvm *kvm, unsigned long hva); @@ -229,7 +305,6 @@ static inline bool kvm_is_ifetch_fault(struct kvm_vcpu_arch *arch) static inline void kvm_arch_hardware_unsetup(void) {} static inline void kvm_arch_sync_events(struct kvm *kvm) {} static inline void kvm_arch_memslots_updated(struct kvm *kvm, u64 gen) {} -static inline void kvm_arch_sched_in(struct kvm_vcpu *vcpu, int cpu) {} static inline void kvm_arch_vcpu_blocking(struct kvm_vcpu *vcpu) {} static inline void kvm_arch_vcpu_unblocking(struct kvm_vcpu *vcpu) {} static inline void kvm_arch_vcpu_block_finish(struct kvm_vcpu *vcpu) {} |