On Mon, May 25, 2020 at 12:59:35PM +0200, Borislav Petkov wrote: > On Tue, Apr 28, 2020 at 05:17:04PM +0200, Joerg Roedel wrote: > > + if (data) > > + data->dr7 = val; > > Are we still returning ES_OK if !data? Yes, it just means we ignore DR7 writes when they happen early before runtime_data is allocated. Since the DR7 value never makes it to the hardware register anyway, it doesn't matter. Joerg