On Fri, 2014-10-24 at 11:57 +0100, Mark Rutland wrote:

On Fri, Oct 24, 2014 at 12:10:58AM +0100, Geoff Levand wrote:

quoted

When a CPU is reset it needs to be put into the exception level it had when it
entered the kernel.  Update cpu_reset() to accept an argument el2_switch which
signals cpu_reset() to enter the soft reset address at EL2.  If el2_switch is
not set the soft reset address will be entered at EL1.

Update cpu_soft_restart() and soft_restart() to pass the return of
is_hyp_mode_available() as the el2_switch value to cpu_reset().  Also update the
comments of cpu_reset(), cpu_soft_restart() and soft_restart() to reflect this
change.

This will blow up without warning with KVM, and I think we need to
address that first.

Yes.  I think we can just put in a conditional on KVM as a workaround
until KVM will work with this.

-Geoff