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