[RFC PATCH v7 00/29] Add LoongArch softmmu support

[Xiaojuan Yang]

This series patch add softmmu support for LoongArch.
The latest kernel:
  * https://github.com/loongson/linux/tree/loongarch-next
The latest uefi:
  * https://github.com/loongson/edk2
  * https://github.com/loongson/edk2-platforms
The manual:
  * https://github.com/loongson/LoongArch-Documentation/releases/tag/2021.10.11

You can get LoongArch qemu series like this:
   git clone https://github.com/loongson/qemu.git
   git checkout tcg-dev


Changes for v7:

1. Moved extioi memory region init function to loongarch_extioi_instance_init.
2. Replaced DECLARE_INSTANCE_CHECKER with OBJECT_DECLARE_SIMPLE_TYPE.
3. Fixed the usage of typedef struct.


Changes for v6: 

1. Add the new loongarch_cpu_init function.
2. Improved extioi memory region.
3. Replaced the original LS7A bridge with a new GPEX bridge.


Changes for v5: 

1. Fix host bridge map irq function.
2. Move cpu timer init function into machine init.
3. Adjust memory region layout.
4. Add the documentation at docs/system/loongarch/loongson3.rst.
   - Introduction to 3a5000 virt.
   - Output of "info mtree".


Changes for v4:
1. Uefi code is open and add some fdt interface to pass info between qemu and 
uefi.
2. Use a per cpu address space for iocsr.
3. Modify the tlb emulation.
4. Machine and board code mainly follow Mark's advice.
5. Adjust pci host space map.
6. Use more memregion to simplify the interrupt controller's emulate.


Changes for v3:
1.Target code mainly follow Richard's code review comments.
2.Put the csr and iocsr read/write instruction emulate into 2 different patch.
3.Simply the tlb emulation.
4.Delete some unused csr registers defintion.
5.Machine and board code mainly follow Mark's advice, discard the obsolete 
interface.
6.NUMA function is removed for it is not completed.
7.Adjust some format problem and the Naming problem


Changes for v3:
1.Target code mainly follow Richard's code review comments.
2.Put the csr and iocsr read/write instruction emulate into 2 different patch.
3.Simply the tlb emulation.
4.Delete some unused csr registers defintion.
5.Machine and board code mainly follow Mark's advice, discard the obsolete 
interface.
6.NUMA function is removed for it is not completed.
7.Adjust some format problem and the Naming problem


Changes for v2:
1.Combine patch 2 and 3 into one.
2.Adjust the order of the patch.
3.Put all the binaries on the github.
4.Modify some emulate errors when use the kernel from the github.
5.Adjust some format problem and the Naming problem
6.Others mainly follow Richard's code review comments.

Please help review!

Thanks


Xiaojuan Yang (29):
  target/loongarch: Add system emulation introduction
  target/loongarch: Add CSRs definition
  target/loongarch: Add basic vmstate description of CPU.
  target/loongarch: Implement qmp_query_cpu_definitions()
  target/loongarch: Add constant timer support
  target/loongarch: Add MMU support for LoongArch CPU.
  target/loongarch: Add LoongArch CSR instruction
  target/loongarch: Add LoongArch IOCSR instruction
  target/loongarch: Add TLB instruction support
  target/loongarch: Add other core instructions support
  target/loongarch: Add LoongArch interrupt and exception handle
  target/loongarch: Add timer related instructions support.
  target/loongarch: Add gdb support.
  hw/loongarch: Add support loongson3 virt machine type.
  hw/loongarch: Add LoongArch cpu interrupt support(CPUINTC)
  hw/loongarch: Add LoongArch ipi interrupt support(IPI)
  hw/intc: Add LoongArch ls7a interrupt controller support(PCH-PIC)
  hw/intc: Add LoongArch ls7a msi interrupt controller support(PCH-MSI)
  hw/intc: Add LoongArch extioi interrupt controller(EIOINTC)
  hw/loongarch: Add irq hierarchy for the system
  Enable common virtio pci support for LoongArch
  hw/loongarch: Add some devices support for 3A5000.
  hw/loongarch: Add LoongArch ls7a rtc device support
  hw/loongarch: Add default bios startup support.
  hw/loongarch: Add -kernel and -initrd options support
  hw/loongarch: Add LoongArch smbios support
  hw/loongarch: Add LoongArch acpi support
  hw/loongarch: Add fdt support.
  tests/tcg/loongarch64: Add hello/memory test in loongarch64 system

 MAINTAINERS                                   |  20 +
 .../devices/loongarch64-softmmu/default.mak   |   3 +
 configs/targets/loongarch64-softmmu.mak       |   4 +
 docs/system/loongarch/loongson3.rst           |  37 +
 gdb-xml/loongarch-base64.xml                  |  44 +
 gdb-xml/loongarch-fpu64.xml                   |  57 ++
 hw/Kconfig                                    |   1 +
 hw/acpi/Kconfig                               |   4 +
 hw/acpi/ls7a.c                                | 374 +++++++++
 hw/acpi/meson.build                           |   1 +
 hw/intc/Kconfig                               |  15 +
 hw/intc/loongarch_extioi.c                    | 408 ++++++++++
 hw/intc/loongarch_ipi.c                       | 164 ++++
 hw/intc/loongarch_pch_msi.c                   |  75 ++
 hw/intc/loongarch_pch_pic.c                   | 488 +++++++++++
 hw/intc/meson.build                           |   4 +
 hw/intc/trace-events                          |  27 +
 hw/loongarch/Kconfig                          |  23 +
 hw/loongarch/acpi-build.c                     | 636 +++++++++++++++
 hw/loongarch/fw_cfg.c                         |  33 +
 hw/loongarch/fw_cfg.h                         |  15 +
 hw/loongarch/loongson3.c                      | 752 +++++++++++++++++
 hw/loongarch/meson.build                      |   6 +
 hw/meson.build                                |   1 +
 hw/rtc/Kconfig                                |   3 +
 hw/rtc/ls7a_rtc.c                             | 323 ++++++++
 hw/rtc/meson.build                            |   1 +
 include/exec/poison.h                         |   2 +
 include/hw/acpi/ls7a.h                        |  53 ++
 include/hw/intc/loongarch_extioi.h            |  77 ++
 include/hw/intc/loongarch_ipi.h               |  47 ++
 include/hw/intc/loongarch_pch_msi.h           |  21 +
 include/hw/intc/loongarch_pch_pic.h           |  80 ++
 include/hw/loongarch/loongarch.h              |  75 ++
 include/hw/pci-host/ls7a.h                    |  48 ++
 include/sysemu/arch_init.h                    |   1 +
 linux-user/loongarch64/cpu_loop.c             |   8 +-
 qapi/machine-target.json                      |   6 +-
 qapi/machine.json                             |   2 +-
 softmmu/qdev-monitor.c                        |   3 +-
 target/Kconfig                                |   1 +
 target/loongarch/Kconfig                      |   2 +
 target/loongarch/README                       |  28 +
 target/loongarch/constant_timer.c             |  62 ++
 target/loongarch/cpu-csr.h                    | 236 ++++++
 target/loongarch/cpu-param.h                  |   2 +-
 target/loongarch/cpu.c                        | 363 ++++++++-
 target/loongarch/cpu.h                        | 218 ++++-
 target/loongarch/csr_helper.c                 | 112 +++
 target/loongarch/disas.c                      |  57 ++
 target/loongarch/fpu_helper.c                 |   2 +-
 target/loongarch/gdbstub.c                    |  99 +++
 target/loongarch/helper.h                     |  26 +
 target/loongarch/insn_trans/trans_extra.c.inc |  36 +-
 .../insn_trans/trans_privileged.c.inc         | 410 ++++++++++
 target/loongarch/insns.decode                 |  44 +
 target/loongarch/internals.h                  |  28 +
 target/loongarch/iocsr_helper.c               | 139 ++++
 target/loongarch/machine.c                    | 102 +++
 target/loongarch/meson.build                  |  11 +
 target/loongarch/op_helper.c                  |  52 ++
 target/loongarch/tlb_helper.c                 | 767 ++++++++++++++++++
 target/loongarch/translate.c                  |   9 +-
 tests/tcg/loongarch64/Makefile.softmmu-target |  33 +
 tests/tcg/loongarch64/system/boot.S           |  56 ++
 tests/tcg/loongarch64/system/kernel.ld        |  30 +
 tests/tcg/loongarch64/system/regdef.h         |  86 ++
 67 files changed, 6922 insertions(+), 31 deletions(-)
 create mode 100644 configs/devices/loongarch64-softmmu/default.mak
 create mode 100644 configs/targets/loongarch64-softmmu.mak
 create mode 100644 docs/system/loongarch/loongson3.rst
 create mode 100644 gdb-xml/loongarch-base64.xml
 create mode 100644 gdb-xml/loongarch-fpu64.xml
 create mode 100644 hw/acpi/ls7a.c
 create mode 100644 hw/intc/loongarch_extioi.c
 create mode 100644 hw/intc/loongarch_ipi.c
 create mode 100644 hw/intc/loongarch_pch_msi.c
 create mode 100644 hw/intc/loongarch_pch_pic.c
 create mode 100644 hw/loongarch/Kconfig
 create mode 100644 hw/loongarch/acpi-build.c
 create mode 100644 hw/loongarch/fw_cfg.c
 create mode 100644 hw/loongarch/fw_cfg.h
 create mode 100644 hw/loongarch/loongson3.c
 create mode 100644 hw/loongarch/meson.build
 create mode 100644 hw/rtc/ls7a_rtc.c
 create mode 100644 include/hw/acpi/ls7a.h
 create mode 100644 include/hw/intc/loongarch_extioi.h
 create mode 100644 include/hw/intc/loongarch_ipi.h
 create mode 100644 include/hw/intc/loongarch_pch_msi.h
 create mode 100644 include/hw/intc/loongarch_pch_pic.h
 create mode 100644 include/hw/loongarch/loongarch.h
 create mode 100644 include/hw/pci-host/ls7a.h
 create mode 100644 target/loongarch/Kconfig
 create mode 100644 target/loongarch/constant_timer.c
 create mode 100644 target/loongarch/cpu-csr.h
 create mode 100644 target/loongarch/csr_helper.c
 create mode 100644 target/loongarch/gdbstub.c
 create mode 100644 target/loongarch/insn_trans/trans_privileged.c.inc
 create mode 100644 target/loongarch/iocsr_helper.c
 create mode 100644 target/loongarch/machine.c
 create mode 100644 target/loongarch/tlb_helper.c
 create mode 100644 tests/tcg/loongarch64/Makefile.softmmu-target
 create mode 100644 tests/tcg/loongarch64/system/boot.S
 create mode 100644 tests/tcg/loongarch64/system/kernel.ld
 create mode 100644 tests/tcg/loongarch64/system/regdef.h

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2.31.1