From 2c3c1048746a4622d8c89a29670120dc8fab93c4 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 7 Apr 2024 20:49:45 +0200 Subject: Adding upstream version 6.1.76. Signed-off-by: Daniel Baumann --- arch/riscv/include/asm/kvm_vcpu_insn.h | 48 ++++++++++++++++++++++++++++++++++ 1 file changed, 48 insertions(+) create mode 100644 arch/riscv/include/asm/kvm_vcpu_insn.h (limited to 'arch/riscv/include/asm/kvm_vcpu_insn.h') diff --git a/arch/riscv/include/asm/kvm_vcpu_insn.h b/arch/riscv/include/asm/kvm_vcpu_insn.h new file mode 100644 index 000000000..350011c83 --- /dev/null +++ b/arch/riscv/include/asm/kvm_vcpu_insn.h @@ -0,0 +1,48 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * Copyright (c) 2022 Ventana Micro Systems Inc. + */ + +#ifndef __KVM_VCPU_RISCV_INSN_H +#define __KVM_VCPU_RISCV_INSN_H + +struct kvm_vcpu; +struct kvm_run; +struct kvm_cpu_trap; + +struct kvm_mmio_decode { + unsigned long insn; + int insn_len; + int len; + int shift; + int return_handled; +}; + +struct kvm_csr_decode { + unsigned long insn; + int return_handled; +}; + +/* Return values used by function emulating a particular instruction */ +enum kvm_insn_return { + KVM_INSN_EXIT_TO_USER_SPACE = 0, + KVM_INSN_CONTINUE_NEXT_SEPC, + KVM_INSN_CONTINUE_SAME_SEPC, + KVM_INSN_ILLEGAL_TRAP, + KVM_INSN_VIRTUAL_TRAP +}; + +void kvm_riscv_vcpu_wfi(struct kvm_vcpu *vcpu); +int kvm_riscv_vcpu_csr_return(struct kvm_vcpu *vcpu, struct kvm_run *run); +int kvm_riscv_vcpu_virtual_insn(struct kvm_vcpu *vcpu, struct kvm_run *run, + struct kvm_cpu_trap *trap); + +int kvm_riscv_vcpu_mmio_load(struct kvm_vcpu *vcpu, struct kvm_run *run, + unsigned long fault_addr, + unsigned long htinst); +int kvm_riscv_vcpu_mmio_store(struct kvm_vcpu *vcpu, struct kvm_run *run, + unsigned long fault_addr, + unsigned long htinst); +int kvm_riscv_vcpu_mmio_return(struct kvm_vcpu *vcpu, struct kvm_run *run); + +#endif -- cgit v1.2.3