diff options
Diffstat (limited to 'arch/arm64/include/asm/kvm_host.h')
| -rw-r--r-- | arch/arm64/include/asm/kvm_host.h | 50 |
1 files changed, 41 insertions, 9 deletions
diff --git a/arch/arm64/include/asm/kvm_host.h b/arch/arm64/include/asm/kvm_host.h index 5bc01e62c08a..e3b25dc6c367 100644 --- a/arch/arm64/include/asm/kvm_host.h +++ b/arch/arm64/include/asm/kvm_host.h @@ -50,6 +50,8 @@ #define KVM_DIRTY_LOG_MANUAL_CAPS (KVM_DIRTY_LOG_MANUAL_PROTECT_ENABLE | \ KVM_DIRTY_LOG_INITIALLY_SET) +#define KVM_HAVE_MMU_RWLOCK + /* * Mode of operation configurable with kvm-arm.mode early param. * See Documentation/admin-guide/kernel-parameters.txt for more information. @@ -71,9 +73,7 @@ int kvm_reset_vcpu(struct kvm_vcpu *vcpu); void kvm_arm_vcpu_destroy(struct kvm_vcpu *vcpu); struct kvm_vmid { - /* The VMID generation used for the virt. memory system */ - u64 vmid_gen; - u32 vmid; + atomic64_t id; }; struct kvm_s2_mmu { @@ -122,20 +122,24 @@ struct kvm_arch { * should) opt in to this feature if KVM_CAP_ARM_NISV_TO_USER is * supported. */ - bool return_nisv_io_abort_to_user; +#define KVM_ARCH_FLAG_RETURN_NISV_IO_ABORT_TO_USER 0 + /* Memory Tagging Extension enabled for the guest */ +#define KVM_ARCH_FLAG_MTE_ENABLED 1 + /* At least one vCPU has ran in the VM */ +#define KVM_ARCH_FLAG_HAS_RAN_ONCE 2 + unsigned long flags; /* * VM-wide PMU filter, implemented as a bitmap and big enough for * up to 2^10 events (ARMv8.0) or 2^16 events (ARMv8.1+). */ unsigned long *pmu_filter; - unsigned int pmuver; + struct arm_pmu *arm_pmu; + + cpumask_var_t supported_cpus; u8 pfr0_csv2; u8 pfr0_csv3; - - /* Memory Tagging Extension enabled for the guest */ - bool mte_enabled; }; struct kvm_vcpu_fault_info { @@ -171,6 +175,7 @@ enum vcpu_sysreg { PAR_EL1, /* Physical Address Register */ MDSCR_EL1, /* Monitor Debug System Control Register */ MDCCINT_EL1, /* Monitor Debug Comms Channel Interrupt Enable Reg */ + OSLSR_EL1, /* OS Lock Status Register */ DISR_EL1, /* Deferred Interrupt Status Register */ /* Performance Monitors Registers */ @@ -435,6 +440,7 @@ struct kvm_vcpu_arch { #define KVM_ARM64_DEBUG_STATE_SAVE_SPE (1 << 12) /* Save SPE context if active */ #define KVM_ARM64_DEBUG_STATE_SAVE_TRBE (1 << 13) /* Save TRBE context if active */ #define KVM_ARM64_FP_FOREIGN_FPSTATE (1 << 14) +#define KVM_ARM64_ON_UNSUPPORTED_CPU (1 << 15) /* Physical CPU not in supported_cpus */ #define KVM_GUESTDBG_VALID_MASK (KVM_GUESTDBG_ENABLE | \ KVM_GUESTDBG_USE_SW_BP | \ @@ -453,6 +459,15 @@ struct kvm_vcpu_arch { #define vcpu_has_ptrauth(vcpu) false #endif +#define vcpu_on_unsupported_cpu(vcpu) \ + ((vcpu)->arch.flags & KVM_ARM64_ON_UNSUPPORTED_CPU) + +#define vcpu_set_on_unsupported_cpu(vcpu) \ + ((vcpu)->arch.flags |= KVM_ARM64_ON_UNSUPPORTED_CPU) + +#define vcpu_clear_on_unsupported_cpu(vcpu) \ + ((vcpu)->arch.flags &= ~KVM_ARM64_ON_UNSUPPORTED_CPU) + #define vcpu_gp_regs(v) (&(v)->arch.ctxt.regs) /* @@ -692,6 +707,12 @@ int kvm_arm_pvtime_get_attr(struct kvm_vcpu *vcpu, int kvm_arm_pvtime_has_attr(struct kvm_vcpu *vcpu, struct kvm_device_attr *attr); +extern unsigned int kvm_arm_vmid_bits; +int kvm_arm_vmid_alloc_init(void); +void kvm_arm_vmid_alloc_free(void); +void kvm_arm_vmid_update(struct kvm_vmid *kvm_vmid); +void kvm_arm_vmid_clear_active(void); + static inline void kvm_arm_pvtime_vcpu_init(struct kvm_vcpu_arch *vcpu_arch) { vcpu_arch->steal.base = GPA_INVALID; @@ -714,6 +735,11 @@ static inline void kvm_init_host_cpu_context(struct kvm_cpu_context *cpu_ctxt) ctxt_sys_reg(cpu_ctxt, MPIDR_EL1) = read_cpuid_mpidr(); } +static inline bool kvm_system_needs_idmapped_vectors(void) +{ + return cpus_have_const_cap(ARM64_SPECTRE_V3A); +} + void kvm_arm_vcpu_ptrauth_trap(struct kvm_vcpu *vcpu); static inline void kvm_arch_hardware_unsetup(void) {} @@ -725,6 +751,10 @@ void kvm_arm_vcpu_init_debug(struct kvm_vcpu *vcpu); void kvm_arm_setup_debug(struct kvm_vcpu *vcpu); void kvm_arm_clear_debug(struct kvm_vcpu *vcpu); void kvm_arm_reset_debug_ptr(struct kvm_vcpu *vcpu); + +#define kvm_vcpu_os_lock_enabled(vcpu) \ + (!!(__vcpu_sys_reg(vcpu, OSLSR_EL1) & SYS_OSLSR_OSLK)) + int kvm_arm_vcpu_arch_set_attr(struct kvm_vcpu *vcpu, struct kvm_device_attr *attr); int kvm_arm_vcpu_arch_get_attr(struct kvm_vcpu *vcpu, @@ -786,7 +816,9 @@ bool kvm_arm_vcpu_is_finalized(struct kvm_vcpu *vcpu); #define kvm_arm_vcpu_sve_finalized(vcpu) \ ((vcpu)->arch.flags & KVM_ARM64_VCPU_SVE_FINALIZED) -#define kvm_has_mte(kvm) (system_supports_mte() && (kvm)->arch.mte_enabled) +#define kvm_has_mte(kvm) \ + (system_supports_mte() && \ + test_bit(KVM_ARCH_FLAG_MTE_ENABLED, &(kvm)->arch.flags)) #define kvm_vcpu_has_pmu(vcpu) \ (test_bit(KVM_ARM_VCPU_PMU_V3, (vcpu)->arch.features)) |