Re: [PATCH v19 7/7] ptp: arm/arm64: Enable ptp_kvm for arm/arm64
From: Zenghui Yu <yuzenghui@huawei.com>
Date: 2021-04-17 08:42:53
Also in:
kvm, kvmarm, linux-arm-kernel, lkml
On 2021/3/30 22:54, Marc Zyngier wrote:
+int kvm_arch_ptp_init(void)
+{
+ int ret;
+
+ ret = kvm_arm_hyp_service_available(ARM_SMCCC_KVM_FUNC_PTP);
+ if (ret <= 0)kvm_arm_hyp_service_available() returns boolean. Maybe write as ? bool ret; ret = kvm_arm_hyp_service_available(); if (!ret) return -ENODEV;
+ return -EOPNOTSUPP; + + return 0; +}