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c62a768597
SBI v0.2 base extension defined to allow backward compatibility and probing of future extensions. This is also the only mandatory SBI extension that must be implemented by SBI implementors. Signed-off-by: Atish Patra <atish.patra@wdc.com> Signed-off-by: Atish Patra <atishp@rivosinc.com> Signed-off-by: Anup Patel <anup.patel@wdc.com>
33 lines
957 B
C
33 lines
957 B
C
/* SPDX-License-Identifier: GPL-2.0-only */
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/**
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* Copyright (c) 2021 Western Digital Corporation or its affiliates.
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*
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* Authors:
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* Atish Patra <atish.patra@wdc.com>
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*/
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#ifndef __RISCV_KVM_VCPU_SBI_H__
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#define __RISCV_KVM_VCPU_SBI_H__
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#define KVM_SBI_IMPID 3
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#define KVM_SBI_VERSION_MAJOR 0
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#define KVM_SBI_VERSION_MINOR 2
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struct kvm_vcpu_sbi_extension {
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unsigned long extid_start;
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unsigned long extid_end;
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/**
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* SBI extension handler. It can be defined for a given extension or group of
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* extension. But it should always return linux error codes rather than SBI
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* specific error codes.
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*/
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int (*handler)(struct kvm_vcpu *vcpu, struct kvm_run *run,
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unsigned long *out_val, struct kvm_cpu_trap *utrap,
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bool *exit);
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};
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void kvm_riscv_vcpu_sbi_forward(struct kvm_vcpu *vcpu, struct kvm_run *run);
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const struct kvm_vcpu_sbi_extension *kvm_vcpu_sbi_find_ext(unsigned long extid);
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#endif /* __RISCV_KVM_VCPU_SBI_H__ */
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