69 lines
1.7 KiB
C
69 lines
1.7 KiB
C
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/* SPDX-License-Identifier: GPL-2.0-only */
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/*
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* Copyright (C) 2021 Google LLC
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* Author: Fuad Tabba <tabba@google.com>
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*/
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#ifndef __ARM64_KVM_NVHE_PKVM_H__
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#define __ARM64_KVM_NVHE_PKVM_H__
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#include <asm/kvm_pkvm.h>
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#include <nvhe/gfp.h>
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#include <nvhe/spinlock.h>
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/*
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* Holds the relevant data for maintaining the vcpu state completely at hyp.
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*/
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struct pkvm_hyp_vcpu {
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struct kvm_vcpu vcpu;
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/* Backpointer to the host's (untrusted) vCPU instance. */
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struct kvm_vcpu *host_vcpu;
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};
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/*
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* Holds the relevant data for running a protected vm.
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*/
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struct pkvm_hyp_vm {
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struct kvm kvm;
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/* Backpointer to the host's (untrusted) KVM instance. */
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struct kvm *host_kvm;
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/* The guest's stage-2 page-table managed by the hypervisor. */
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struct kvm_pgtable pgt;
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struct kvm_pgtable_mm_ops mm_ops;
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struct hyp_pool pool;
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hyp_spinlock_t lock;
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/*
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* The number of vcpus initialized and ready to run.
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* Modifying this is protected by 'vm_table_lock'.
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*/
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unsigned int nr_vcpus;
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/* Array of the hyp vCPU structures for this VM. */
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struct pkvm_hyp_vcpu *vcpus[];
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};
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static inline struct pkvm_hyp_vm *
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pkvm_hyp_vcpu_to_hyp_vm(struct pkvm_hyp_vcpu *hyp_vcpu)
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{
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return container_of(hyp_vcpu->vcpu.kvm, struct pkvm_hyp_vm, kvm);
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}
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void pkvm_hyp_vm_table_init(void *tbl);
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int __pkvm_init_vm(struct kvm *host_kvm, unsigned long vm_hva,
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unsigned long pgd_hva);
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int __pkvm_init_vcpu(pkvm_handle_t handle, struct kvm_vcpu *host_vcpu,
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unsigned long vcpu_hva);
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int __pkvm_teardown_vm(pkvm_handle_t handle);
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struct pkvm_hyp_vcpu *pkvm_load_hyp_vcpu(pkvm_handle_t handle,
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unsigned int vcpu_idx);
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void pkvm_put_hyp_vcpu(struct pkvm_hyp_vcpu *hyp_vcpu);
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#endif /* __ARM64_KVM_NVHE_PKVM_H__ */
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