On Wed, Jan 02, 2013 at 09:07:41PM +0000, Stephen Warren wrote: > From: Stephen Warren <swarren at nvidia.com> > > On Tegra at least, this change allows kexec to work with SMP enabled. > Without this, machine_shutdown() simply puts all CPUs into a loop. If > the code of that loop is over-written, the CPUs may hang or crash (which > I do observe in practice), or cause the kexec'd kernel not to be able to > initialize them. > > This fix has the added benefit that the kexec always happens on the boot > CPU, and thus kexec mirrors the initial kernel boot as much as possible. > > Signed-off-by: Stephen Warren <swarren at nvidia.com> Acked-by: Will Deacon <will.deacon at arm.com> Cheers Stephen, Will
