Re: [PATCH v10 00/32] i386 cleanup

[Philippe Mathieu-Daudé]

Hi Claudio,

On 12/10/20 1:11 PM, Claudio Fontana wrote:
> Hello, this is version 10 of the cleanup, changed from RFC to PATCH.
> 
> v9 -> v10: minor tweaks and fixes
> 
> * in "i386: split cpu accelerators from cpu.c",
> 
> use kvm/kvm-cpu.c, hvf/hvf-cpu.c, tcg/tcg-cpu.c.
> Easier to understand compared to editing multiple cpu.c files,
> and matches the header files if needed (kvm-cpu.h).
> 
> * in "accel: replace struct CpusAccel with AccelOpsClass",
> 
> make it a bit more consistent, by naming the files defining
> the AccelOpsClass types "...-accel-ops.c" instead of the old
> naming "...-cpus.c".
> 
> * in "cpu: move cc->transaction_failed to tcg_ops",
> 
> protect with CONFIG_TCG the use of tcg_ops for hw/misc/jazz.c,
> 
>  #include "exec/memattrs.h" (Philippe, Eduardo)
> 
> * in "cpu: Move synchronize_from_tb() to tcg_ops",
> 
>  #include "hw/core/cpu.h" (Philippe, Eduardo)
> 
> do not remove the comment about struct TcgCpuOperations (Philippe)
> 
> * in "accel/tcg: split TCG-only code from cpu_exec_realizefn",
> 
> invert tcg_target_initialized set order (Alex)
> 
> * in "i386: move TCG cpu class initialization out of helper.c",
> 
> extract helper-tcg.h, tcg-cpu.c, and tcg-cpu.h directly into
> tcg/, avoiding the extra move later to tcg/ (Alex)
> 
...

> Claudio Fontana (23):
>   accel/tcg: split CpusAccel into three TCG variants
>   accel/tcg: split tcg_start_vcpu_thread
>   accel/tcg: rename tcg-cpus functions to match module name
>   i386: move kvm accel files into kvm/
>   i386: move whpx accel files into whpx/
>   i386: move hax accel files into hax/
>   i386: hvf: remove stale MAINTAINERS entry for old hvf stubs
>   i386: move TCG accel files into tcg/
>   i386: move cpu dump out of helper.c into cpu-dump.c
>   i386: move TCG cpu class initialization out of helper.c
>   target/riscv: remove CONFIG_TCG, as it is always TCG
>   accel/tcg: split TCG-only code from cpu_exec_realizefn
>   target/arm: do not use cc->do_interrupt for KVM directly
>   cpu: move cc->do_interrupt to tcg_ops
>   cpu: move cc->transaction_failed to tcg_ops
>   cpu: move do_unaligned_access to tcg_ops

To be honest this is a lot to digest... I'd split your
series in 2, the first part until here, almost ready;

And this second part, the accel refactor:

>   accel: extend AccelState and AccelClass to user-mode
>   accel: replace struct CpusAccel with AccelOpsClass
>   accel: introduce AccelCPUClass extending CPUClass
>   i386: split cpu accelerators from cpu.c, using AccelCPUClass
>   cpu: call AccelCPUClass::cpu_realizefn in cpu_exec_realizefn
>   hw/core/cpu: call qemu_init_vcpu in cpu_common_realizefn
>   cpu: introduce cpu_accel_instance_init