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Re: [Qemu-devel] [Question] Question about ACPI table in qemu
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From: |
Paolo Bonzini |
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Subject: |
Re: [Qemu-devel] [Question] Question about ACPI table in qemu |
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Date: |
Tue, 11 Sep 2018 19:24:04 +0200 |
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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
qemu_platform_setup).
Thanks,
Paolo