On Mon, Jul 23, 2018 at 12:33 PM Sean Christopherson <sean.j.christopherson@xxxxxxxxx> wrote: > > On a 64-bit host, FS.sel and GS.sel are all but guaranteed to be 0, > which in turn means they'll rarely change. Skip the VMWRITE for the > associated VMCS fields when loading host state if the selector hasn't > changed since the last VMWRITE. > > Signed-off-by: Sean Christopherson <sean.j.christopherson@xxxxxxxxx> Reviewed-by: Peter Shier <pshier@xxxxxxxxxx> Tested-by: Peter Shier <pshier@xxxxxxxxxx>