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https://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson
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dd82e35638
The upcoming nested virtualization can share g-stage page table management with the current host g-stage implementation hence factor-out g-stage page table management as separate sources and also use "kvm_riscv_mmu_" prefix for host g-stage functions. Signed-off-by: Anup Patel <apatel@ventanamicro.com> Tested-by: Atish Patra <atishp@rivosinc.com> Reviewed-by: Nutty Liu <liujingqi@lanxincomputing.com> Link: https://lore.kernel.org/r/20250618113532.471448-12-apatel@ventanamicro.com Signed-off-by: Anup Patel <anup@brainfault.org>
22 lines
721 B
C
22 lines
721 B
C
/* SPDX-License-Identifier: GPL-2.0-only */
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/*
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* Copyright (c) 2025 Ventana Micro Systems Inc.
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*/
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#ifndef __RISCV_KVM_MMU_H_
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#define __RISCV_KVM_MMU_H_
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#include <asm/kvm_gstage.h>
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int kvm_riscv_mmu_ioremap(struct kvm *kvm, gpa_t gpa, phys_addr_t hpa,
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unsigned long size, bool writable, bool in_atomic);
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void kvm_riscv_mmu_iounmap(struct kvm *kvm, gpa_t gpa, unsigned long size);
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int kvm_riscv_mmu_map(struct kvm_vcpu *vcpu, struct kvm_memory_slot *memslot,
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gpa_t gpa, unsigned long hva, bool is_write,
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struct kvm_gstage_mapping *out_map);
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int kvm_riscv_mmu_alloc_pgd(struct kvm *kvm);
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void kvm_riscv_mmu_free_pgd(struct kvm *kvm);
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void kvm_riscv_mmu_update_hgatp(struct kvm_vcpu *vcpu);
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#endif
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