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Re: [PATCH v2 3/4] hw/display/vga-mmio: QOM'ify vga_mmio_init() as TYPE_
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From: |
Juan Quintela |
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Subject: |
Re: [PATCH v2 3/4] hw/display/vga-mmio: QOM'ify vga_mmio_init() as TYPE_VGA_MMIO |
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Date: |
Tue, 14 Dec 2021 13:05:29 +0100 |
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User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/27.2 (gnu/linux) |
Thomas Huth <thuth@redhat.com> wrote:
> On 06/12/2021 23.45, Philippe Mathieu-Daudé wrote:
>> Introduce TYPE_VGA_MMIO, a sysbus device.
>> While there is no change in the vga_mmio_init()
>> interface, this is a migration compatibility break
>> of the MIPS Acer Pica 61 Jazz machine (pica61).
>
> It's unfortunate, but as far as I know, it would be pretty difficult
> or even impossible to get this done without versioned machine types?
> So IMHO it's ok to break this in this case here.
Hi
My understanding is that outside of x86*, and now ppc, arm and s390,
no one else really cares about migration compatibility. I am not even
sure if they really care about migration at all O:-)
So, if the code is better for other reasons, I will not wonder about
migration compatibility.
Later, Juan.
[PATCH v2 4/4] hw/mips/jazz: Inline vga_mmio_init() and remove it, Philippe Mathieu-Daudé, 2021/12/06
Re: [PATCH v2 0/4] hw/display: QOM'ify vga_mmio_init() as TYPE_VGA_MMIO, Philippe Mathieu-Daudé, 2021/12/13