On 27/09/17 15:46, Joao Martins wrote: > In order to support pvclock vdso on xen we need to setup the time > info page for vcpu 0 and register the page with Xen using the > VCPUOP_register_vcpu_time_memory_area hypercall. This hypercall > will also forcefully update the pvti which will set some of the > necessary flags for vdso. Afterwards we check if it supports the > PVCLOCK_TSC_STABLE_BIT flag which is mandatory for having > vdso/vsyscall support. And if so, it will set the cpu 0 pvti that > will be later on used when mapping the vdso image. > > The xen headers are also updated to include the new hypercall for > registering the secondary vcpu_time_info struct. > > Signed-off-by: Joao Martins <joao.m.mart...@oracle.com>
Reviewed-by: Juergen Gross <jgr...@suse.com> Juergen _______________________________________________ Xen-devel mailing list Xen-devel@lists.xen.org https://lists.xen.org/xen-devel
