Hi Alistair,

sorry for the stupid question—I am not sure whether you are going to give
reviewed-by to the remaining patches, and also whether you would like me to
submit the PR for this or not.

Thanks in advance

Paolo

Il ven 28 feb 2025, 11:27 Paolo Bonzini <pbonz...@redhat.com> ha scritto:

> As in v1, what I really wanted to achieve was removing RISC-V's
> use of .instance_post_init; that's because RISC-V operate with an
> opposite conception of .instance_post_init compared to everyone
> else: RISC-V wants to register properties there, whereas x86 and
> hw/pci-bridge/pcie_root_port.c want to set them.  While it's possible
> to move RISC-V's code to instance_init, the others have to run after
> global properties have been set by device_post_init().
>
> The way to get there is to make CPU definitions entirely declarative.
> Previously, multiple instance_init functions each override the properties
> that were set by the superclass, and the code used a mix of subclassing
> and direct invocation of other functions.  Now, instead, after .class_init
> all the settings for each model are available in a RISCVCPUDef struct,
> and the result is copied into the RISCVCPU at .instance_init time.
> This is done with a single function that starts from the parent's
> RISCVCPUDef and applies the delta stored in the CPU's class_data.
>
> Apart from the small reduction in line count, one advantage is that
> more validation of the models can be done unconditionally at startup,
> instead of happening dynamically if a CPU model is chosen.
>
> Based-on: <20250218165757.554178-1-pbonz...@redhat.com>
>
> Paolo
>
> v1->v2:
> - merged "remove target/riscv: remove unused macro DEFINE_CPU"
> - max SATP mode refactoring moved to its own series
> - included a couple of Philippe's patches from his "const class_data"
> series
> - RISCVCPUDef initializers all declared as const
>
> Paolo Bonzini (20):
>   target/riscv: introduce RISCVCPUDef
>   target/riscv: store RISCVCPUDef struct directly in the class
>   target/riscv: merge riscv_cpu_class_init with the class_base function
>   target/riscv: move RISCVCPUConfig fields to a header file
>   target/riscv: add more RISCVCPUDef fields
>   target/riscv: convert abstract CPU classes to RISCVCPUDef
>   target/riscv: do not make RISCVCPUConfig fields conditional
>   target/riscv: convert profile CPU models to RISCVCPUDef
>   target/riscv: convert bare CPU models to RISCVCPUDef
>   target/riscv: convert dynamic CPU models to RISCVCPUDef
>   target/riscv: convert SiFive E CPU models to RISCVCPUDef
>   target/riscv: convert ibex CPU models to RISCVCPUDef
>   target/riscv: convert SiFive U models to RISCVCPUDef
>   target/riscv: th: make CSR insertion test a bit more intuitive
>   target/riscv: generalize custom CSR functionality
>   target/riscv: convert TT C906 to RISCVCPUDef
>   target/riscv: convert TT Ascalon to RISCVCPUDef
>   target/riscv: convert Ventana V1 to RISCVCPUDef
>   target/riscv: convert Xiangshan Nanhu to RISCVCPUDef
>   target/riscv: remove .instance_post_init
>
> Philippe Mathieu-Daudé (2):
>   target/riscv: Declare RISCVCPUClass::misa_mxl_max as RISCVMXL
>   target/riscv: Convert misa_mxl_max using GLib macros
>
>  target/riscv/cpu-qom.h            |   2 +
>  target/riscv/cpu.h                |  27 +-
>  target/riscv/cpu_cfg.h            | 160 +-----
>  target/riscv/cpu_cfg_fields.h.inc | 165 ++++++
>  hw/riscv/boot.c                   |   2 +-
>  target/riscv/cpu.c                | 909 ++++++++++++++----------------
>  target/riscv/csr.c                |   2 +-
>  target/riscv/gdbstub.c            |   6 +-
>  target/riscv/kvm/kvm-cpu.c        |  23 +-
>  target/riscv/machine.c            |   6 +-
>  target/riscv/tcg/tcg-cpu.c        |  10 +-
>  target/riscv/th_csr.c             |  30 +-
>  target/riscv/translate.c          |   2 +-
>  13 files changed, 632 insertions(+), 712 deletions(-)
>  create mode 100644 target/riscv/cpu_cfg_fields.h.inc
>
> --
> 2.48.1
>

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