Commit 001f60e1 authored by Joao Martins's avatar Joao Martins Committed by Boris Ostrovsky

ptp_kvm: probe for kvm guest availability

In the event of moving pvclock_pvti_cpu0_va() definition to common
pvclock code, this function would return a value on non KVM guests.
Later on this would fail with a GPF on ptp_kvm_init when running on a
Xen guest. Therefore, ptp_kvm_init() should check whether it is running
in a KVM guest.
Signed-off-by: default avatarJoao Martins <joao.m.martins@oracle.com>
Acked-by: default avatarRadim Krčmář <rkrcmar@redhat.com>
Signed-off-by: default avatarBoris Ostrovsky <boris.ostrovsky@oracle.com>
parent 52847bb7
......@@ -178,6 +178,9 @@ static int __init ptp_kvm_init(void)
{
long ret;
if (!kvm_para_available())
return -ENODEV;
clock_pair_gpa = slow_virt_to_phys(&clock_pair);
hv_clock = pvclock_pvti_cpu0_va();
......
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