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/* SPDX-License-Identifier: GPL-2.0-only */
/*
* Copyright (c) 2025 Ventana Micro Systems Inc.
*/
#ifndef __RISCV_KVM_TLB_H_
#define __RISCV_KVM_TLB_H_
#include <linux/kvm_types.h>
enum kvm_riscv_hfence_type {
KVM_RISCV_HFENCE_UNKNOWN = 0,
KVM_RISCV_HFENCE_GVMA_VMID_GPA,
KVM_RISCV_HFENCE_GVMA_VMID_ALL,
KVM_RISCV_HFENCE_VVMA_ASID_GVA,
KVM_RISCV_HFENCE_VVMA_ASID_ALL,
KVM_RISCV_HFENCE_VVMA_GVA,
KVM_RISCV_HFENCE_VVMA_ALL
};
struct kvm_riscv_hfence {
enum kvm_riscv_hfence_type type;
unsigned long asid;
unsigned long vmid;
unsigned long order;
gpa_t addr;
gpa_t size;
};
#define KVM_RISCV_VCPU_MAX_HFENCE 64
#define KVM_RISCV_GSTAGE_TLB_MIN_ORDER 12
void kvm_riscv_local_hfence_gvma_vmid_gpa(unsigned long vmid,
gpa_t gpa, gpa_t gpsz,
unsigned long order);
void kvm_riscv_local_hfence_gvma_vmid_all(unsigned long vmid);
void kvm_riscv_local_hfence_gvma_gpa(gpa_t gpa, gpa_t gpsz,
unsigned long order);
void kvm_riscv_local_hfence_gvma_all(void);
void kvm_riscv_local_hfence_vvma_asid_gva(unsigned long vmid,
unsigned long asid,
unsigned long gva,
unsigned long gvsz,
unsigned long order);
void kvm_riscv_local_hfence_vvma_asid_all(unsigned long vmid,
unsigned long asid);
void kvm_riscv_local_hfence_vvma_gva(unsigned long vmid,
unsigned long gva, unsigned long gvsz,
unsigned long order);
void kvm_riscv_local_hfence_vvma_all(unsigned long vmid);
void kvm_riscv_tlb_flush_process(struct kvm_vcpu *vcpu);
void kvm_riscv_fence_i_process(struct kvm_vcpu *vcpu);
void kvm_riscv_hfence_vvma_all_process(struct kvm_vcpu *vcpu);
void kvm_riscv_hfence_process(struct kvm_vcpu *vcpu);
void kvm_riscv_fence_i(struct kvm *kvm,
unsigned long hbase, unsigned long hmask);
void kvm_riscv_hfence_gvma_vmid_gpa(struct kvm *kvm,
unsigned long hbase, unsigned long hmask,
gpa_t gpa, gpa_t gpsz,
unsigned long order, unsigned long vmid);
void kvm_riscv_hfence_gvma_vmid_all(struct kvm *kvm,
unsigned long hbase, unsigned long hmask,
unsigned long vmid);
void kvm_riscv_hfence_vvma_asid_gva(struct kvm *kvm,
unsigned long hbase, unsigned long hmask,
unsigned long gva, unsigned long gvsz,
unsigned long order, unsigned long asid,
unsigned long vmid);
void kvm_riscv_hfence_vvma_asid_all(struct kvm *kvm,
unsigned long hbase, unsigned long hmask,
unsigned long asid, unsigned long vmid);
void kvm_riscv_hfence_vvma_gva(struct kvm *kvm,
unsigned long hbase, unsigned long hmask,
unsigned long gva, unsigned long gvsz,
unsigned long order, unsigned long vmid);
void kvm_riscv_hfence_vvma_all(struct kvm *kvm,
unsigned long hbase, unsigned long hmask,
unsigned long vmid);
#endif
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