switch.c (84d751a019a9792f5b4884e1d598b603c360ec22) switch.c (20492a62b99bd4367b79a76ca288d018f11980db)
1// SPDX-License-Identifier: GPL-2.0-only
2/*
3 * Copyright (C) 2015 - ARM Ltd
4 * Author: Marc Zyngier <marc.zyngier@arm.com>
5 */
6
7#include <hyp/switch.h>
8#include <hyp/sysreg-sr.h>

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118 __vgic_v3_activate_traps(&vcpu->arch.vgic_cpu.vgic_v3);
119 __vgic_v3_restore_state(&vcpu->arch.vgic_cpu.vgic_v3);
120 }
121}
122
123/**
124 * Disable host events, enable guest events
125 */
1// SPDX-License-Identifier: GPL-2.0-only
2/*
3 * Copyright (C) 2015 - ARM Ltd
4 * Author: Marc Zyngier <marc.zyngier@arm.com>
5 */
6
7#include <hyp/switch.h>
8#include <hyp/sysreg-sr.h>

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118 __vgic_v3_activate_traps(&vcpu->arch.vgic_cpu.vgic_v3);
119 __vgic_v3_restore_state(&vcpu->arch.vgic_cpu.vgic_v3);
120 }
121}
122
123/**
124 * Disable host events, enable guest events
125 */
126#ifdef CONFIG_HW_PERF_EVENTS
126static bool __pmu_switch_to_guest(struct kvm_vcpu *vcpu)
127{
128 struct kvm_pmu_events *pmu = &vcpu->arch.pmu.events;
129
130 if (pmu->events_host)
131 write_sysreg(pmu->events_host, pmcntenclr_el0);
132
133 if (pmu->events_guest)

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144 struct kvm_pmu_events *pmu = &vcpu->arch.pmu.events;
145
146 if (pmu->events_guest)
147 write_sysreg(pmu->events_guest, pmcntenclr_el0);
148
149 if (pmu->events_host)
150 write_sysreg(pmu->events_host, pmcntenset_el0);
151}
127static bool __pmu_switch_to_guest(struct kvm_vcpu *vcpu)
128{
129 struct kvm_pmu_events *pmu = &vcpu->arch.pmu.events;
130
131 if (pmu->events_host)
132 write_sysreg(pmu->events_host, pmcntenclr_el0);
133
134 if (pmu->events_guest)

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145 struct kvm_pmu_events *pmu = &vcpu->arch.pmu.events;
146
147 if (pmu->events_guest)
148 write_sysreg(pmu->events_guest, pmcntenclr_el0);
149
150 if (pmu->events_host)
151 write_sysreg(pmu->events_host, pmcntenset_el0);
152}
153#else
154#define __pmu_switch_to_guest(v) ({ false; })
155#define __pmu_switch_to_host(v) do {} while (0)
156#endif
152
153/**
154 * Handler for protected VM MSR, MRS or System instruction execution in AArch64.
155 *
156 * Returns true if the hypervisor has handled the exit, and control should go
157 * back to the guest, or false if it hasn't.
158 */
159static bool kvm_handle_pvm_sys64(struct kvm_vcpu *vcpu, u64 *exit_code)

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158/**
159 * Handler for protected VM MSR, MRS or System instruction execution in AArch64.
160 *
161 * Returns true if the hypervisor has handled the exit, and control should go
162 * back to the guest, or false if it hasn't.
163 */
164static bool kvm_handle_pvm_sys64(struct kvm_vcpu *vcpu, u64 *exit_code)

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