Merge tag 'pull-la-20220606' of https://gitlab.com/rth7680/qemu into staging

Merge tag 'pull-la-20220606' of https://gitlab.com/rth7680/qemu into staging

Initial LoongArch support.

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# gpg: Signature made Mon 06 Jun 2022 04:09:10 PM PDT
# gpg:                using RSA key 7A481E78868B4DB6A85A05C064DF38E8AF7E215F
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# gpg: Good signature from "Richard Henderson <richard.henderson@linaro.org>" [ultimate]

* tag 'pull-la-20220606' of https://gitlab.com/rth7680/qemu: (43 commits)
  target/loongarch: 'make check-tcg' support
  tests/tcg/loongarch64: Add hello/memory test in loongarch64 system
  target/loongarch: Add gdb support.
  hw/loongarch: Add LoongArch virt power manager support.
  hw/loongarch: Add LoongArch load elf function.
  hw/loongarch: Add LoongArch ls7a rtc device support
  hw/loongarch: Add some devices support for 3A5000.
  Enable common virtio pci support for LoongArch
  hw/loongarch: Add irq hierarchy for the system
  hw/intc: Add LoongArch extioi interrupt controller(EIOINTC)
  hw/intc: Add LoongArch ls7a msi interrupt controller support(PCH-MSI)
  hw/intc: Add LoongArch ls7a interrupt controller support(PCH-PIC)
  hw/loongarch: Add LoongArch ipi interrupt support(IPI)
  hw/loongarch: Add support loongson3 virt machine type.
  target/loongarch: Add timer related instructions support.
  target/loongarch: Add other core instructions support
  target/loongarch: Add TLB instruction support
  target/loongarch: Add LoongArch IOCSR instruction
  target/loongarch: Add LoongArch CSR instruction
  target/loongarch: Add constant timer support
  ...

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>