diff options
Diffstat (limited to 'arch/arm64/include/asm/kvm_host.h')
-rw-r--r-- | arch/arm64/include/asm/kvm_host.h | 60 |
1 files changed, 34 insertions, 26 deletions
diff --git a/arch/arm64/include/asm/kvm_host.h b/arch/arm64/include/asm/kvm_host.h index f0f58c9beec0..580a5232d217 100644 --- a/arch/arm64/include/asm/kvm_host.h +++ b/arch/arm64/include/asm/kvm_host.h @@ -48,6 +48,8 @@ int __attribute_const__ kvm_target_cpu(void); int kvm_reset_vcpu(struct kvm_vcpu *vcpu); int kvm_arch_dev_ioctl_check_extension(long ext); +unsigned long kvm_hyp_reset_entry(void); +void __extended_idmap_trampoline(phys_addr_t boot_pgd, phys_addr_t idmap_start); struct kvm_arch { /* The VMID generation used for the virt. memory system */ @@ -103,15 +105,30 @@ struct kvm_vcpu_arch { /* HYP configuration */ u64 hcr_el2; + u32 mdcr_el2; /* Exception Information */ struct kvm_vcpu_fault_info fault; - /* Debug state */ + /* Guest debug state */ u64 debug_flags; + /* + * We maintain more than a single set of debug registers to support + * debugging the guest from the host and to maintain separate host and + * guest state during world switches. vcpu_debug_state are the debug + * registers of the vcpu as the guest sees them. host_debug_state are + * the host registers which are saved and restored during world switches. + * + * debug_ptr points to the set of debug registers that should be loaded + * onto the hardware when running the guest. + */ + struct kvm_guest_debug_arch *debug_ptr; + struct kvm_guest_debug_arch vcpu_debug_state; + /* Pointer to host CPU context */ kvm_cpu_context_t *host_cpu_context; + struct kvm_guest_debug_arch host_debug_state; /* VGIC state */ struct vgic_cpu vgic_cpu; @@ -216,38 +233,29 @@ static inline void __cpu_init_hyp_mode(phys_addr_t boot_pgd_ptr, hyp_stack_ptr, vector_ptr); } -struct vgic_sr_vectors { - void *save_vgic; - void *restore_vgic; -}; - -static inline void vgic_arch_setup(const struct vgic_params *vgic) +static inline void __cpu_init_stage2(void) { - extern struct vgic_sr_vectors __vgic_sr_vectors; - - switch(vgic->type) - { - case VGIC_V2: - __vgic_sr_vectors.save_vgic = __save_vgic_v2_state; - __vgic_sr_vectors.restore_vgic = __restore_vgic_v2_state; - break; - -#ifdef CONFIG_ARM_GIC_V3 - case VGIC_V3: - __vgic_sr_vectors.save_vgic = __save_vgic_v3_state; - __vgic_sr_vectors.restore_vgic = __restore_vgic_v3_state; - break; -#endif +} - default: - BUG(); - } +static inline void __cpu_reset_hyp_mode(phys_addr_t boot_pgd_ptr, + phys_addr_t phys_idmap_start) +{ + /* + * Call reset code, and switch back to stub hyp vectors. + * Uses kvm_call_hyp() to avoid kaslr's kvm_ksym_ref() translation. + */ + kvm_call_hyp((void *)kvm_hyp_reset_entry(), + boot_pgd_ptr, phys_idmap_start); } -static inline void kvm_arch_hardware_disable(void) {} static inline void kvm_arch_hardware_unsetup(void) {} static inline void kvm_arch_sync_events(struct kvm *kvm) {} static inline void kvm_arch_vcpu_uninit(struct kvm_vcpu *vcpu) {} static inline void kvm_arch_sched_in(struct kvm_vcpu *vcpu, int cpu) {} +void kvm_arm_init_debug(void); +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); + #endif /* __ARM64_KVM_HOST_H__ */ |