[PATCH master 0/4] ARM: psci: client: unbreak hypervisor boot

Ahmad Fatoum a.fatoum at pengutronix.de
Mon Oct 31 23:26:38 PDT 2022

PSCI fixup logic is useful when kernel DT contains just arm,psci and
expects firmware to update compatible as PSCI v0.1 doesn't have a
command for querying PSCI version. The fixup was too zealous though and
hardcoded the method to smc, breaking hvc boot. The result was also not
confirming to the current bindings, so fix that up.

This fixes boot on QEMU ARM Virt64, which previously crashed when smc
was executed.

Ahmad Fatoum (4):
  ARM: psci: of: fixup only version if node already exists
  ARM: psci: client: match most specific compatible first
  ARM: psci: client: always register OF fixup
  ARM: psci: keep older PSCI versions in compatible fixup

 arch/arm/cpu/psci-client.c | 12 ++++--------
 arch/arm/cpu/psci-of.c     | 39 +++++++++++++++++++++-----------------
 2 files changed, 26 insertions(+), 25 deletions(-)


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