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37 lines
942 B
C
37 lines
942 B
C
/* SPDX-License-Identifier: GPL-2.0-only */
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/*
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* Copyright (C) 2020 Google LLC
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* Author: Quentin Perret <qperret@google.com>
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*/
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#ifndef __KVM_NVHE_MEM_PROTECT__
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#define __KVM_NVHE_MEM_PROTECT__
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#include <linux/kvm_host.h>
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#include <asm/kvm_hyp.h>
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#include <asm/kvm_pgtable.h>
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#include <asm/virt.h>
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#include <nvhe/spinlock.h>
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struct host_kvm {
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struct kvm_arch arch;
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struct kvm_pgtable pgt;
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struct kvm_pgtable_mm_ops mm_ops;
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hyp_spinlock_t lock;
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};
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extern struct host_kvm host_kvm;
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int __pkvm_prot_finalize(void);
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int __pkvm_mark_hyp(phys_addr_t start, phys_addr_t end);
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int kvm_host_prepare_stage2(void *pgt_pool_base);
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void handle_host_mem_abort(struct kvm_cpu_context *host_ctxt);
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static __always_inline void __load_host_stage2(void)
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{
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if (static_branch_likely(&kvm_protected_mode_initialized))
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__load_stage2(&host_kvm.arch.mmu, host_kvm.arch.vtcr);
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else
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write_sysreg(0, vttbr_el2);
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}
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#endif /* __KVM_NVHE_MEM_PROTECT__ */
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