Re: [PATCH v4 00/11] hw/isa/vt82c686: Implement relocation and toggling of SuperI/O functions

2024-01-09 Thread Bernhard Beschow



Am 8. Januar 2024 22:12:12 UTC schrieb Mark Cave-Ayland 
:
>On 08/01/2024 20:07, Bernhard Beschow wrote:
>
>> Am 7. Januar 2024 14:13:44 UTC schrieb Mark Cave-Ayland 
>> :
>>> On 06/01/2024 21:05, Bernhard Beschow wrote:
>>> 
 This series implements relocation of the SuperI/O functions of the VIA 
 south
 bridges which resolves some FIXME's. It is part of my via-apollo-pro-133t
 branch [1] which is an extension of bringing the VIA south bridges to the 
 PC
 machine [2]. This branch is able to run some real-world X86 BIOSes in the 
 hope
 that it allows us to form a better understanding of the real vt82c686b 
 devices.
 Implementing relocation and toggling of the SuperI/O functions is one step 
 to
 make these BIOSes run without error messages, so here we go.
 
 The series is structured as follows: Patches 1-3 prepare the TYPE_ISA_FDC,
 TYPE_ISA_PARALLEL and TYPE_ISA_SERIAL to relocate and toggle 
 (enable/disable)
 themselves without breaking encapsulation of their respective device 
 states.
 This is achieved by moving the MemoryRegions and PortioLists from the 
 device
 states into the encapsulating ISA devices since they will be relocated and
 toggled.
 
 Inspired by the memory API patches 4-6 add two convenience functions to the
 portio_list API to toggle and relocate portio lists. Patch 5 is a 
 preparation
 for that which removes some redundancies which otherwise had to be dealt 
 with
 during relocation.
 
 Patches 7-9 implement toggling and relocation for types TYPE_ISA_FDC,
 TYPE_ISA_PARALLEL and TYPE_ISA_SERIAL. Patch 10 prepares the pegasos2 
 machine
 which would end up with all SuperI/O functions disabled if no -bios 
 argument is
 given. Patch 11 finally implements the main feature which now relies on
 firmware to configure the SuperI/O functions accordingly (except for 
 pegasos2).
 
 v4:
 * Drop incomplete SuperI/O vmstate handling (Zoltan)
 
 v3:
 * Rework various commit messages (Zoltan)
 * Drop patch "hw/char/serial: Free struct SerialState from MemoryRegion"
 (Zoltan)
 * Generalize wording in migration.rst to include portio_list API (Zoltan)
 
 v2:
 * Improve commit messages (Zoltan)
 * Split pegasos2 from vt82c686 patch (Zoltan)
 * Avoid poking into device internals (Zoltan)
 
 Testing done:
 * `make check`
 * `make check-avocado`
 * Run MorphOS on pegasos2 with and without pegasos2.rom
 * Run Linux on amigaone
 * Run real-world BIOSes on via-apollo-pro-133t branch
 * Start rescue-yl on fuloong2e
 
 [1] https://github.com/shentok/qemu/tree/via-apollo-pro-133t
 [2] https://github.com/shentok/qemu/tree/pc-via
 
 Bernhard Beschow (11):
 hw/block/fdc-isa: Move portio_list from FDCtrl to FDCtrlISABus
 hw/block/fdc-sysbus: Move iomem from FDCtrl to FDCtrlSysBus
 hw/char/parallel: Move portio_list from ParallelState to
   ISAParallelState
 exec/ioport: Resolve redundant .base attribute in struct
   MemoryRegionPortio
 exec/ioport: Add portio_list_set_address()
 exec/ioport: Add portio_list_set_enabled()
 hw/block/fdc-isa: Implement relocation and enabling/disabling for
   TYPE_ISA_FDC
 hw/char/serial-isa: Implement relocation and enabling/disabling for
   TYPE_ISA_SERIAL
 hw/char/parallel-isa: Implement relocation and enabling/disabling for
   TYPE_ISA_PARALLEL
 hw/ppc/pegasos2: Let pegasos2 machine configure SuperI/O functions
 hw/isa/vt82c686: Implement relocation and toggling of SuperI/O
   functions
 
docs/devel/migration.rst   |  6 ++--
hw/block/fdc-internal.h|  4 ---
include/exec/ioport.h  |  4 ++-
include/hw/block/fdc.h |  3 ++
include/hw/char/parallel-isa.h |  5 +++
include/hw/char/parallel.h |  2 --
include/hw/char/serial.h   |  2 ++
hw/block/fdc-isa.c | 18 +-
hw/block/fdc-sysbus.c  |  6 ++--
hw/char/parallel-isa.c | 14 
hw/char/parallel.c |  2 +-
hw/char/serial-isa.c   | 14 
hw/isa/vt82c686.c  | 66 --
hw/ppc/pegasos2.c  | 15 
system/ioport.c| 41 +
15 files changed, 172 insertions(+), 30 deletions(-)
>>> 
>>> I think this series generally looks good: the only thing I think it's worth 
>>> checking is whether portio lists are considered exclusive to ISA devices or 
>>> not? (Paolo?).
>> 
>> The modifications preserve the current design, so how is this question 
>> related to this series?
>
>I was thinking about patches 1 and 3 where the portio_list variabl

Re: [PATCH v4 00/11] hw/isa/vt82c686: Implement relocation and toggling of SuperI/O functions

2024-01-08 Thread Mark Cave-Ayland

On 08/01/2024 20:07, Bernhard Beschow wrote:


Am 7. Januar 2024 14:13:44 UTC schrieb Mark Cave-Ayland 
:

On 06/01/2024 21:05, Bernhard Beschow wrote:


This series implements relocation of the SuperI/O functions of the VIA south
bridges which resolves some FIXME's. It is part of my via-apollo-pro-133t
branch [1] which is an extension of bringing the VIA south bridges to the PC
machine [2]. This branch is able to run some real-world X86 BIOSes in the hope
that it allows us to form a better understanding of the real vt82c686b devices.
Implementing relocation and toggling of the SuperI/O functions is one step to
make these BIOSes run without error messages, so here we go.

The series is structured as follows: Patches 1-3 prepare the TYPE_ISA_FDC,
TYPE_ISA_PARALLEL and TYPE_ISA_SERIAL to relocate and toggle (enable/disable)
themselves without breaking encapsulation of their respective device states.
This is achieved by moving the MemoryRegions and PortioLists from the device
states into the encapsulating ISA devices since they will be relocated and
toggled.

Inspired by the memory API patches 4-6 add two convenience functions to the
portio_list API to toggle and relocate portio lists. Patch 5 is a preparation
for that which removes some redundancies which otherwise had to be dealt with
during relocation.

Patches 7-9 implement toggling and relocation for types TYPE_ISA_FDC,
TYPE_ISA_PARALLEL and TYPE_ISA_SERIAL. Patch 10 prepares the pegasos2 machine
which would end up with all SuperI/O functions disabled if no -bios argument is
given. Patch 11 finally implements the main feature which now relies on
firmware to configure the SuperI/O functions accordingly (except for pegasos2).

v4:
* Drop incomplete SuperI/O vmstate handling (Zoltan)

v3:
* Rework various commit messages (Zoltan)
* Drop patch "hw/char/serial: Free struct SerialState from MemoryRegion"
(Zoltan)
* Generalize wording in migration.rst to include portio_list API (Zoltan)

v2:
* Improve commit messages (Zoltan)
* Split pegasos2 from vt82c686 patch (Zoltan)
* Avoid poking into device internals (Zoltan)

Testing done:
* `make check`
* `make check-avocado`
* Run MorphOS on pegasos2 with and without pegasos2.rom
* Run Linux on amigaone
* Run real-world BIOSes on via-apollo-pro-133t branch
* Start rescue-yl on fuloong2e

[1] https://github.com/shentok/qemu/tree/via-apollo-pro-133t
[2] https://github.com/shentok/qemu/tree/pc-via

Bernhard Beschow (11):
hw/block/fdc-isa: Move portio_list from FDCtrl to FDCtrlISABus
hw/block/fdc-sysbus: Move iomem from FDCtrl to FDCtrlSysBus
hw/char/parallel: Move portio_list from ParallelState to
  ISAParallelState
exec/ioport: Resolve redundant .base attribute in struct
  MemoryRegionPortio
exec/ioport: Add portio_list_set_address()
exec/ioport: Add portio_list_set_enabled()
hw/block/fdc-isa: Implement relocation and enabling/disabling for
  TYPE_ISA_FDC
hw/char/serial-isa: Implement relocation and enabling/disabling for
  TYPE_ISA_SERIAL
hw/char/parallel-isa: Implement relocation and enabling/disabling for
  TYPE_ISA_PARALLEL
hw/ppc/pegasos2: Let pegasos2 machine configure SuperI/O functions
hw/isa/vt82c686: Implement relocation and toggling of SuperI/O
  functions

   docs/devel/migration.rst   |  6 ++--
   hw/block/fdc-internal.h|  4 ---
   include/exec/ioport.h  |  4 ++-
   include/hw/block/fdc.h |  3 ++
   include/hw/char/parallel-isa.h |  5 +++
   include/hw/char/parallel.h |  2 --
   include/hw/char/serial.h   |  2 ++
   hw/block/fdc-isa.c | 18 +-
   hw/block/fdc-sysbus.c  |  6 ++--
   hw/char/parallel-isa.c | 14 
   hw/char/parallel.c |  2 +-
   hw/char/serial-isa.c   | 14 
   hw/isa/vt82c686.c  | 66 --
   hw/ppc/pegasos2.c  | 15 
   system/ioport.c| 41 +
   15 files changed, 172 insertions(+), 30 deletions(-)


I think this series generally looks good: the only thing I think it's worth 
checking is whether portio lists are considered exclusive to ISA devices or 
not? (Paolo?).


The modifications preserve the current design, so how is this question related 
to this series?


I was thinking about patches 1 and 3 where the portio_list variable is moved from the 
core object to the ISA-specific child objects.



I'd appreciate feedback from the maintainers indeed since this part hasn't 
received any comments so far. Thanks :)


Agreed. I *think* the portio_lists are ISA-specific as far as QEMU is concerned, but 
a quick nod from an x86 maintainer would be a great help :)



The portio_list_set_enabled() API looks interesting, and could be considered 
for use by my PCI IDE mode-switching changes too.

Apologies I don't have a huge amount of time for review right now, but I wanted 
to feed back that generally these patches look good, and i

Re: [PATCH v4 00/11] hw/isa/vt82c686: Implement relocation and toggling of SuperI/O functions

2024-01-08 Thread Bernhard Beschow



Am 7. Januar 2024 14:13:44 UTC schrieb Mark Cave-Ayland 
:
>On 06/01/2024 21:05, Bernhard Beschow wrote:
>
>> This series implements relocation of the SuperI/O functions of the VIA south
>> bridges which resolves some FIXME's. It is part of my via-apollo-pro-133t
>> branch [1] which is an extension of bringing the VIA south bridges to the PC
>> machine [2]. This branch is able to run some real-world X86 BIOSes in the 
>> hope
>> that it allows us to form a better understanding of the real vt82c686b 
>> devices.
>> Implementing relocation and toggling of the SuperI/O functions is one step to
>> make these BIOSes run without error messages, so here we go.
>> 
>> The series is structured as follows: Patches 1-3 prepare the TYPE_ISA_FDC,
>> TYPE_ISA_PARALLEL and TYPE_ISA_SERIAL to relocate and toggle (enable/disable)
>> themselves without breaking encapsulation of their respective device states.
>> This is achieved by moving the MemoryRegions and PortioLists from the device
>> states into the encapsulating ISA devices since they will be relocated and
>> toggled.
>> 
>> Inspired by the memory API patches 4-6 add two convenience functions to the
>> portio_list API to toggle and relocate portio lists. Patch 5 is a preparation
>> for that which removes some redundancies which otherwise had to be dealt with
>> during relocation.
>> 
>> Patches 7-9 implement toggling and relocation for types TYPE_ISA_FDC,
>> TYPE_ISA_PARALLEL and TYPE_ISA_SERIAL. Patch 10 prepares the pegasos2 machine
>> which would end up with all SuperI/O functions disabled if no -bios argument 
>> is
>> given. Patch 11 finally implements the main feature which now relies on
>> firmware to configure the SuperI/O functions accordingly (except for 
>> pegasos2).
>> 
>> v4:
>> * Drop incomplete SuperI/O vmstate handling (Zoltan)
>> 
>> v3:
>> * Rework various commit messages (Zoltan)
>> * Drop patch "hw/char/serial: Free struct SerialState from MemoryRegion"
>>(Zoltan)
>> * Generalize wording in migration.rst to include portio_list API (Zoltan)
>> 
>> v2:
>> * Improve commit messages (Zoltan)
>> * Split pegasos2 from vt82c686 patch (Zoltan)
>> * Avoid poking into device internals (Zoltan)
>> 
>> Testing done:
>> * `make check`
>> * `make check-avocado`
>> * Run MorphOS on pegasos2 with and without pegasos2.rom
>> * Run Linux on amigaone
>> * Run real-world BIOSes on via-apollo-pro-133t branch
>> * Start rescue-yl on fuloong2e
>> 
>> [1] https://github.com/shentok/qemu/tree/via-apollo-pro-133t
>> [2] https://github.com/shentok/qemu/tree/pc-via
>> 
>> Bernhard Beschow (11):
>>hw/block/fdc-isa: Move portio_list from FDCtrl to FDCtrlISABus
>>hw/block/fdc-sysbus: Move iomem from FDCtrl to FDCtrlSysBus
>>hw/char/parallel: Move portio_list from ParallelState to
>>  ISAParallelState
>>exec/ioport: Resolve redundant .base attribute in struct
>>  MemoryRegionPortio
>>exec/ioport: Add portio_list_set_address()
>>exec/ioport: Add portio_list_set_enabled()
>>hw/block/fdc-isa: Implement relocation and enabling/disabling for
>>  TYPE_ISA_FDC
>>hw/char/serial-isa: Implement relocation and enabling/disabling for
>>  TYPE_ISA_SERIAL
>>hw/char/parallel-isa: Implement relocation and enabling/disabling for
>>  TYPE_ISA_PARALLEL
>>hw/ppc/pegasos2: Let pegasos2 machine configure SuperI/O functions
>>hw/isa/vt82c686: Implement relocation and toggling of SuperI/O
>>  functions
>> 
>>   docs/devel/migration.rst   |  6 ++--
>>   hw/block/fdc-internal.h|  4 ---
>>   include/exec/ioport.h  |  4 ++-
>>   include/hw/block/fdc.h |  3 ++
>>   include/hw/char/parallel-isa.h |  5 +++
>>   include/hw/char/parallel.h |  2 --
>>   include/hw/char/serial.h   |  2 ++
>>   hw/block/fdc-isa.c | 18 +-
>>   hw/block/fdc-sysbus.c  |  6 ++--
>>   hw/char/parallel-isa.c | 14 
>>   hw/char/parallel.c |  2 +-
>>   hw/char/serial-isa.c   | 14 
>>   hw/isa/vt82c686.c  | 66 --
>>   hw/ppc/pegasos2.c  | 15 
>>   system/ioport.c| 41 +
>>   15 files changed, 172 insertions(+), 30 deletions(-)
>
>I think this series generally looks good: the only thing I think it's worth 
>checking is whether portio lists are considered exclusive to ISA devices or 
>not? (Paolo?).

The modifications preserve the current design, so how is this question related 
to this series?

I'd appreciate feedback from the maintainers indeed since this part hasn't 
received any comments so far. Thanks :)

>
>The portio_list_set_enabled() API looks interesting, and could be considered 
>for use by my PCI IDE mode-switching changes too.
>
>Apologies I don't have a huge amount of time for review right now, but I 
>wanted to feed back that generally these patches look good, and if people are 
>happy with the portio list changes then this series should be conside

Re: [PATCH v4 00/11] hw/isa/vt82c686: Implement relocation and toggling of SuperI/O functions

2024-01-07 Thread Mark Cave-Ayland

On 06/01/2024 21:05, Bernhard Beschow wrote:


This series implements relocation of the SuperI/O functions of the VIA south
bridges which resolves some FIXME's. It is part of my via-apollo-pro-133t
branch [1] which is an extension of bringing the VIA south bridges to the PC
machine [2]. This branch is able to run some real-world X86 BIOSes in the hope
that it allows us to form a better understanding of the real vt82c686b devices.
Implementing relocation and toggling of the SuperI/O functions is one step to
make these BIOSes run without error messages, so here we go.

The series is structured as follows: Patches 1-3 prepare the TYPE_ISA_FDC,
TYPE_ISA_PARALLEL and TYPE_ISA_SERIAL to relocate and toggle (enable/disable)
themselves without breaking encapsulation of their respective device states.
This is achieved by moving the MemoryRegions and PortioLists from the device
states into the encapsulating ISA devices since they will be relocated and
toggled.

Inspired by the memory API patches 4-6 add two convenience functions to the
portio_list API to toggle and relocate portio lists. Patch 5 is a preparation
for that which removes some redundancies which otherwise had to be dealt with
during relocation.

Patches 7-9 implement toggling and relocation for types TYPE_ISA_FDC,
TYPE_ISA_PARALLEL and TYPE_ISA_SERIAL. Patch 10 prepares the pegasos2 machine
which would end up with all SuperI/O functions disabled if no -bios argument is
given. Patch 11 finally implements the main feature which now relies on
firmware to configure the SuperI/O functions accordingly (except for pegasos2).

v4:
* Drop incomplete SuperI/O vmstate handling (Zoltan)

v3:
* Rework various commit messages (Zoltan)
* Drop patch "hw/char/serial: Free struct SerialState from MemoryRegion"
   (Zoltan)
* Generalize wording in migration.rst to include portio_list API (Zoltan)

v2:
* Improve commit messages (Zoltan)
* Split pegasos2 from vt82c686 patch (Zoltan)
* Avoid poking into device internals (Zoltan)

Testing done:
* `make check`
* `make check-avocado`
* Run MorphOS on pegasos2 with and without pegasos2.rom
* Run Linux on amigaone
* Run real-world BIOSes on via-apollo-pro-133t branch
* Start rescue-yl on fuloong2e

[1] https://github.com/shentok/qemu/tree/via-apollo-pro-133t
[2] https://github.com/shentok/qemu/tree/pc-via

Bernhard Beschow (11):
   hw/block/fdc-isa: Move portio_list from FDCtrl to FDCtrlISABus
   hw/block/fdc-sysbus: Move iomem from FDCtrl to FDCtrlSysBus
   hw/char/parallel: Move portio_list from ParallelState to
 ISAParallelState
   exec/ioport: Resolve redundant .base attribute in struct
 MemoryRegionPortio
   exec/ioport: Add portio_list_set_address()
   exec/ioport: Add portio_list_set_enabled()
   hw/block/fdc-isa: Implement relocation and enabling/disabling for
 TYPE_ISA_FDC
   hw/char/serial-isa: Implement relocation and enabling/disabling for
 TYPE_ISA_SERIAL
   hw/char/parallel-isa: Implement relocation and enabling/disabling for
 TYPE_ISA_PARALLEL
   hw/ppc/pegasos2: Let pegasos2 machine configure SuperI/O functions
   hw/isa/vt82c686: Implement relocation and toggling of SuperI/O
 functions

  docs/devel/migration.rst   |  6 ++--
  hw/block/fdc-internal.h|  4 ---
  include/exec/ioport.h  |  4 ++-
  include/hw/block/fdc.h |  3 ++
  include/hw/char/parallel-isa.h |  5 +++
  include/hw/char/parallel.h |  2 --
  include/hw/char/serial.h   |  2 ++
  hw/block/fdc-isa.c | 18 +-
  hw/block/fdc-sysbus.c  |  6 ++--
  hw/char/parallel-isa.c | 14 
  hw/char/parallel.c |  2 +-
  hw/char/serial-isa.c   | 14 
  hw/isa/vt82c686.c  | 66 --
  hw/ppc/pegasos2.c  | 15 
  system/ioport.c| 41 +
  15 files changed, 172 insertions(+), 30 deletions(-)


I think this series generally looks good: the only thing I think it's worth checking 
is whether portio lists are considered exclusive to ISA devices or not? (Paolo?).


The portio_list_set_enabled() API looks interesting, and could be considered for use 
by my PCI IDE mode-switching changes too.


Apologies I don't have a huge amount of time for review right now, but I wanted to 
feed back that generally these patches look good, and if people are happy with the 
portio list changes then this series should be considered for merge.



ATB,

Mark.