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b48c1a45a1
This provides a mechanism for querying which paravirtualized time features are available in this hypervisor. Also add the header file which defines the ABI for the paravirtualized time features we're about to add. Signed-off-by: Steven Price <steven.price@arm.com> Signed-off-by: Marc Zyngier <maz@kernel.org>
21 lines
374 B
C
21 lines
374 B
C
// SPDX-License-Identifier: GPL-2.0
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// Copyright (C) 2019 Arm Ltd.
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#include <linux/arm-smccc.h>
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#include <kvm/arm_hypercalls.h>
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long kvm_hypercall_pv_features(struct kvm_vcpu *vcpu)
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{
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u32 feature = smccc_get_arg1(vcpu);
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long val = SMCCC_RET_NOT_SUPPORTED;
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switch (feature) {
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case ARM_SMCCC_HV_PV_TIME_FEATURES:
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val = SMCCC_RET_SUCCESS;
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break;
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}
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return val;
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}
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