Currently, kvmtool unconditionally declares that HVC should be used
to call PSCI, so the function numbers in the DT tell the guest
nothing about the function ID namespace or calling convention for
SMC.

We already assume that the guest will examine and honour the DT,
since there is no way it could possibly guess the KVM-specific PSCI
function IDs otherwise.  So let's not encourage guests to violate
what's specified in the DT by using SMC to make the call.

[ Modified to apply to top of kvm/arm tree - Christoffer ]
Signed-off-by: NDave P Martin <Dave.Martin@arm.com>
Acked-by: NMarc Zyngier <marc.zyngier@arm.com>
Signed-off-by: NChristoffer Dall <cdall@cs.columbia.edu>

s/unkown/unknown/
Signed-off-by: NChristoffer Dall <cdall@cs.columbia.edu>

It has little to do in emulate.c these days...
Signed-off-by: NMarc Zyngier <marc.zyngier@arm.com>

This one got lost in the move to handle_exit, so let's reintroduce it
using an accessor to the immediate value field like the other ones.
Signed-off-by: NChristoffer Dall <cdall@cs.columbia.edu>

The exit handler selection code cannot be shared with arm64
(two different modes, more exception classes...).

Move it to a separate file (handle_exit.c).
Signed-off-by: NMarc Zyngier <marc.zyngier@arm.com>
Signed-off-by: NChristoffer Dall <cdall@cs.columbia.edu>