[PATCH kvm-unit-tests 0/3] arm/arm64: smp: prepare for on_cpu

[Andrew Jones <drjones@redhat.com>]

Paolo inspired me to add x86's on_cpu and on_cpu_asynch to ARM's API.
I messed around with it a while, but haven't really settled on what
I want to do. I played with the following approaches:
 - wfe/sev, requires the concept of an idle state and knowing that the
   target CPU is in that state - i.e. no arbitrary preemption.
 - IPI, allows arbitrary preemption, but requires the GIC to be setup
   enough to receive SGIs and also a dedicated SGI for the scheduling
 - PSCI, poweroff state isn't better than an idle state, and PSCI works
   asynchronously wrt CPUs

I need to switch to more pressing work now, so I'm going to backburn
this. However, I'll probably come back to it sometime and while I
was messing with it I wrote the 3 patches in this series that we can
take now.

drew

Andrew Jones (3):
  arm/arm64: smp: assert secondaries only boot once
  arm/arm64: psci: cpu_psci_cpu_die operates on itself
  arm/arm64: psci: avoid calling halt directly

 arm/psci.c         |  5 ++---
 lib/arm/asm/psci.h |  2 +-
 lib/arm/asm/smp.h  |  8 --------
 lib/arm/psci.c     |  5 +++--
 lib/arm/smp.c      | 13 +++++++++++++
 5 files changed, 19 insertions(+), 14 deletions(-)

-- 
2.9.4