Re: [Xen-devel] [PATCH linux 3/8] x86/xen: use xen_vcpu_id mapping for HYPERVISOR_vcpu_op

On 28/06/16 17:47, Vitaly Kuznetsov wrote: > HYPERVISOR_vcpu_op passes Linux's idea of vCPU id as a parameter while > Xen's idea is expected. In some cases these ideas diverge so we need to > do remapping. > > There is an issue, however. PV guests do VCPUOP_is_up very early > (see xen_fill_possibl

[PATCH linux 3/8] x86/xen: use xen_vcpu_id mapping for HYPERVISOR_vcpu_op

HYPERVISOR_vcpu_op passes Linux's idea of vCPU id as a parameter while Xen's idea is expected. In some cases these ideas diverge so we need to do remapping. There is an issue, however. PV guests do VCPUOP_is_up very early (see xen_fill_possible_map() and xen_filter_cpu_maps()) when we don't have p