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/* 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 *mem_pgt_pool, void *dev_pgt_pool);
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__ */
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