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Merge branch 'kvm-arm64/ptp' into kvmarm-master/next 

Signed-off-by: Marc Zyngier <maz@kernel.org>
This commit is contained in:
Marc Zyngier 2021-04-20 17:22:10 +01:00
parent 979a265264 182a71a365
commit 4085ae8093
2 changed files with 4 additions and 3 deletions
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4
Documentation/virt/kvm/arm/ptp_kvm.rst
View File

@ -7,11 +7,11 @@ PTP_KVM is used for high precision time sync between host and guests.
It relies on transferring the wall clock and counter value from the
host to the guest using a KVM-specific hypercall.
* ARM_SMCCC_HYP_KVM_PTP_FUNC_ID: 0x86000001
* ARM_SMCCC_VENDOR_HYP_KVM_PTP_FUNC_ID: 0x86000001
This hypercall uses the SMC32/HVC32 calling convention:
ARM_SMCCC_HYP_KVM_PTP_FUNC_ID
ARM_SMCCC_VENDOR_HYP_KVM_PTP_FUNC_ID
============== ======== =====================================
Function ID: (uint32) 0x86000001
Arguments: (uint32) KVM_PTP_VIRT_COUNTER(0)

1
drivers/ptp/ptp_kvm_common.c
View File

@ -138,6 +138,7 @@ static int __init ptp_kvm_init(void)
ret = kvm_arch_ptp_init();
if (ret) {
if (ret != -EOPNOTSUPP)
pr_err("fail to initialize ptp_kvm");
return ret;
}