On Tue, Jun 30, 2015 at 01:19:07PM +0200, Peter Zijlstra wrote: > On Mon, Jun 29, 2015 at 02:22:14PM -0700, Andi Kleen wrote: > > From: Andi Kleen <[email protected]> > > > > Current kernels always test extra registers at boot with RMW > > cycle, to catch lying virtual machines. > > > > For a new register the standard 0x1ff test value does not work, > > as 0x1ff is not a valid value and causes an #GP. > > > > Add the ability to add custom test values to an extra_reg > > into the description tables. > > Just wondering; is there not a test value that works for all registers?
0x11 will likely work everywhere. -Andi -- [email protected] -- Speaking for myself only -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
