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44 lines
1.2 KiB
44 lines
1.2 KiB
/* SPDX-License-Identifier: GPL-2.0-only */ |
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/* |
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* Copyright (C) 2019 Western Digital Corporation or its affiliates. |
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* |
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* Authors: |
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* Atish Patra <[email protected]> |
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*/ |
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#ifndef __KVM_VCPU_RISCV_TIMER_H |
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#define __KVM_VCPU_RISCV_TIMER_H |
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#include <linux/hrtimer.h> |
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struct kvm_guest_timer { |
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/* Mult & Shift values to get nanoseconds from cycles */ |
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u32 nsec_mult; |
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u32 nsec_shift; |
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/* Time delta value */ |
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u64 time_delta; |
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}; |
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struct kvm_vcpu_timer { |
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/* Flag for whether init is done */ |
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bool init_done; |
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/* Flag for whether timer event is configured */ |
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bool next_set; |
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/* Next timer event cycles */ |
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u64 next_cycles; |
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/* Underlying hrtimer instance */ |
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struct hrtimer hrt; |
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}; |
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int kvm_riscv_vcpu_timer_next_event(struct kvm_vcpu *vcpu, u64 ncycles); |
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int kvm_riscv_vcpu_get_reg_timer(struct kvm_vcpu *vcpu, |
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const struct kvm_one_reg *reg); |
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int kvm_riscv_vcpu_set_reg_timer(struct kvm_vcpu *vcpu, |
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const struct kvm_one_reg *reg); |
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int kvm_riscv_vcpu_timer_init(struct kvm_vcpu *vcpu); |
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int kvm_riscv_vcpu_timer_deinit(struct kvm_vcpu *vcpu); |
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int kvm_riscv_vcpu_timer_reset(struct kvm_vcpu *vcpu); |
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void kvm_riscv_vcpu_timer_restore(struct kvm_vcpu *vcpu); |
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int kvm_riscv_guest_timer_init(struct kvm *kvm); |
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#endif
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