Re: [PATCH V16 0/6] mips: Add Loongson-3 machine support

[Philippe Mathieu-Daudé]

On 10/30/20 11:25 AM, Huacai Chen wrote:
> Loongson-3 CPU family include Loongson-3A R1/R2/R3/R4 and Loongson-3B
> R1/R2. Loongson-3A R1 is the oldest and its ISA is the smallest, while
> Loongson-3A R4 is the newest and its ISA is almost the superset of all
> others. To reduce complexity, in QEMU we just define two CPU types:
> 
> 1, "Loongson-3A1000" CPU which is corresponding to Loongson-3A R1. It is
>    suitable for TCG because Loongson-3A R1 has fewest ASE.
> 2, "Loongson-3A4000" CPU which is corresponding to Loongson-3A R4. It is
>    suitable for KVM because Loongson-3A R4 has the VZ ASE.

As this series missed the 5.2 release, I'll look at it
again in 2 or 3 weeks.

> Huacai Chen and Jiaxun Yang (8):
>  target/mips: Fix PageMask with variable page size
>  target/mips: Add unaligned access support for MIPS64R6 and Loongson-3
>  hw/mips: Implement fw_cfg_arch_key_name()
>  hw/mips: Add Loongson-3 boot parameter helpers
>  hw/mips: Add Loongson-3 machine support
>  docs/system: Update MIPS machine documentation
> 
> Signed-off-by: Huacai Chen <chenhc@lemote.com>
> ---
>  default-configs/devices/mips64el-softmmu.mak |   1 +
>  docs/system/target-mips.rst                  |  10 +
>  hw/mips/Kconfig                              |  12 +
>  hw/mips/fw_cfg.c                             |  35 ++
>  hw/mips/fw_cfg.h                             |  19 +
>  hw/mips/loongson3_bootp.c                    | 165 +++++++
>  hw/mips/loongson3_bootp.h                    | 241 +++++++++++
>  hw/mips/loongson3_virt.c                     | 614 
> +++++++++++++++++++++++++++
>  hw/mips/meson.build                          |   3 +-
>  target/mips/cp0_helper.c                     |  34 +-
>  target/mips/cpu.h                            |   1 +
>  target/mips/translate.c                      |   4 +-
>  12 files changed, 1130 insertions(+), 9 deletions(-)
>  create mode 100644 hw/mips/fw_cfg.c
>  create mode 100644 hw/mips/fw_cfg.h
>  create mode 100644 hw/mips/loongson3_bootp.c
>  create mode 100644 hw/mips/loongson3_bootp.h
>  create mode 100644 hw/mips/loongson3_virt.c
> --
> 2.7.0
>