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). v5: * Use cpu_physical_memory_write() in pegasos2 (Zoltan) * Use an int as for loop variable (Zoltan) 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 | 65 ++++++++++++++++++++++++++++------ hw/ppc/pegasos2.c | 12 +++++++ system/ioport.c | 41 +++++++++++++++++---- 15 files changed, 168 insertions(+), 30 deletions(-) -- 2.43.0
