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Re: [Qemu-devel] [Question] Question about ACPI table in qemu

From: Paolo Bonzini
Subject: Re: [Qemu-devel] [Question] Question about ACPI table in qemu
Date: Tue, 11 Sep 2018 19:24:04 +0200
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.9.1

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



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