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// SPDX-License-Identifier: GPL-2.0-only
/*
* Virtual PTP 1588 clock for use with KVM guests
* Copyright (C) 2019 ARM Ltd.
* All Rights Reserved
*/
#include <linux/arm-smccc.h>
#include <linux/ptp_kvm.h>
#include <asm/arch_timer.h>
#include <asm/hypervisor.h>
int kvm_arch_ptp_init(void)
{
int ret;
ret = kvm_arm_hyp_service_available(ARM_SMCCC_KVM_FUNC_PTP);
if (ret <= 0)
return -EOPNOTSUPP;
return 0;
}
void kvm_arch_ptp_exit(void)
{
}
int kvm_arch_ptp_get_clock(struct timespec64 *ts)
{
return kvm_arch_ptp_get_crosststamp(NULL, ts, NULL);
}
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