Merge tag 'for-upstream' of https://gitlab.com/bonzini/qemu into staging

small bug fixes

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# gpg: Signature made Wed 15 Mar 2023 10:52:33 GMT
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# gpg: Good signature from "Paolo Bonzini <bonzini@gnu.org>" [full]
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* tag 'for-upstream' of https://gitlab.com/bonzini/qemu:
  vl: defuse PID file path resolve error
  hw/intc/ioapic: Update KVM routes before redelivering IRQ, on RTE update
  docs/devel: clarify further the semantics of RMW operations
  Fix build without CONFIG_XEN_EMU

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>