tree ec82161513eceed1cd7291331c703b443bb6f2be
parent 1779a39f786397760ae7a7cc03cf37697d8ae58d
author Vitaly Kuznetsov <vkuznets@redhat.com> 1537981376 +0200
committer Paolo Bonzini <pbonzini@redhat.com> 1539728985 +0200

KVM: x86: hyperv: keep track of mismatched VP indexes

In most common cases VP index of a vcpu matches its vcpu index. Userspace
is, however, free to set any mapping it wishes and we need to account for
that when we need to find a vCPU with a particular VP index. To keep search
algorithms optimal in both cases introduce 'num_mismatched_vp_indexes'
counter showing how many vCPUs with mismatching VP index we have. In case
the counter is zero we can assume vp_index == vcpu_idx.

Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Reviewed-by: Roman Kagan <rkagan@virtuozzo.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>