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From: Paolo Bonzini <pbonzini@redhat.com>
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Date: Tue, 11 Sep 2018 19:24:04 +0200
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Subject: Re: [Qemu-devel] [Question] Question about ACPI table in qemu
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To: Li Qiang <liq3ea@gmail.com>, mst@redhat.com, Laszlo Ersek <lersek@redhat.com>, kevin@koconnor.net
Cc: Qemu Developers <qemu-devel@nongnu.org>

On 11/09/2018 18:54, Li Qiang wrote:
> Hi all,
> 
> I noticed that both qemu and seabios create the ACPI table.
> Once I think he bios' ACPI table will overwrite the qemu's if seabios
> compiled with CONFIG_ACPI.

Yes, SeaBIOS's ACPI tables are not used anymore, to remove the need to
update QEMU and SeaBIOS in sync.

> But after I read this -->
> https://lists.gnu.org/archive/html/qemu-devel/2013-02/msg04555.html
> 
> There say:
> 
> "just have QEMU pass the tables to SeaBIOS for it to copy
>>>> into memory like it does on CSM, coreboot, and Xen"
> 
> So where does this 'copy' happens? or is there something others I missed?

The copy happens in SeaBIOS's romfile_loader_execute function (called by
qemu_platform_setup).

Thanks,

Paolo