On Mon, Nov 12, 2018 at 12:23:14PM +0000, Suthikulpanit, Suravee wrote: > From: Wei Wang <wawei@xxxxxxxxx> > > There is a race condition when accessing kvm->arch.apic_access_page_done. > Due to it, x86_set_memory_region will fail when creating the second vcpu > for a svm guest. > > Add a mutex_lock to serialize the accesses to apic_access_page_done. > This lock is also used by vmx for the same purpose. > > Signed-off-by: Wei Wang <wawei@xxxxxxxxx> > Signed-off-by: Amadeusz Juskowiak <ajusk@xxxxxxxxx> > Signed-off-by: Julian Stecklina <jsteckli@xxxxxxxxx> > Signed-off-by: Suravee Suthikulpanit <suravee.suthikulpanit@xxxxxxx> Reviewed-by: Joerg Roedel <jroedel@xxxxxxx>
