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Re: [Qemu-devel] [PATCH v4 4/5] acpi: arm: add fw_cfg device node to dsd
From: |
Laszlo Ersek |
Subject: |
Re: [Qemu-devel] [PATCH v4 4/5] acpi: arm: add fw_cfg device node to dsdt |
Date: |
Thu, 1 Oct 2015 14:50:45 +0200 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:38.0) Gecko/20100101 Thunderbird/38.2.0 |
On 10/01/15 14:39, Peter Maydell wrote:
> On 1 October 2015 at 13:35, Laszlo Ersek <address@hidden> wrote:
>> On 10/01/15 14:22, Gabriel L. Somlo wrote:
>>> I'm noticing that even on 32-bit arm there are ACPI tables generated and
>>> inserted into fw_cfg, so is there any reason OTHER than lack of firmware
>>> support for ACPI not being supported on 32-bit arm ?
>
> This is mostly just that we didn't bother to suppress them for
> 32-bit boots, though they're useless there.
>
>> I think Ard was speaking about the guest kernel (his pointer certainly
>> looks like a kernel repo). With regard to firmware, edk2's
>> ArmVirtPkg/ArmVirtQemu.dsc builds just fine for 32-bit ARM guests.
>>
>> So, it's not a QEMU or guest firmware problem; I think it's a guest
>> kernel problem.
>
> Only if you think ACPI support is a requirement.
Oh, certainly. I was speaking with that working assumption (based on how
Gabriel asked his question); I wasn't trying to state that assumption as
a fact. Sorry about the misunderstanding.
Thanks
Laszlo
> It's not for 32-bit;
> there's no compelling reason to implement it there.
>
> thanks
> -- PMM
>
- Re: [Qemu-devel] [PATCH v4 4/5] acpi: arm: add fw_cfg device node to dsdt, (continued)
- Re: [Qemu-devel] [PATCH v4 4/5] acpi: arm: add fw_cfg device node to dsdt, Ard Biesheuvel, 2015/10/08
- Re: [Qemu-devel] [PATCH v4 4/5] acpi: arm: add fw_cfg device node to dsdt, Laszlo Ersek, 2015/10/08
- Re: [Qemu-devel] [PATCH v4 4/5] acpi: arm: add fw_cfg device node to dsdt, Peter Maydell, 2015/10/08
- Re: [Qemu-devel] [PATCH v4 4/5] acpi: arm: add fw_cfg device node to dsdt, Laszlo Ersek, 2015/10/08
- Re: [Qemu-devel] [PATCH v4 4/5] acpi: arm: add fw_cfg device node to dsdt, Gerd Hoffmann, 2015/10/08
- Re: [Qemu-devel] [PATCH v4 4/5] acpi: arm: add fw_cfg device node to dsdt, Gabriel L. Somlo, 2015/10/08
- Re: [Qemu-devel] [PATCH v4 4/5] acpi: arm: add fw_cfg device node to dsdt, Peter Maydell, 2015/10/08
- Re: [Qemu-devel] [PATCH v4 4/5] acpi: arm: add fw_cfg device node to dsdt, Gabriel L. Somlo, 2015/10/08
- Re: [Qemu-devel] [PATCH v4 4/5] acpi: arm: add fw_cfg device node to dsdt, Laszlo Ersek, 2015/10/08
- Re: [Qemu-devel] [PATCH v4 4/5] acpi: arm: add fw_cfg device node to dsdt, Peter Maydell, 2015/10/08
- Re: [Qemu-devel] [PATCH v4 4/5] acpi: arm: add fw_cfg device node to dsdt,
Laszlo Ersek <=
- Re: [Qemu-devel] [PATCH v4 4/5] acpi: arm: add fw_cfg device node to dsdt, Ard Biesheuvel, 2015/10/08
Re: [Qemu-devel] [PATCH v4 4/5] acpi: arm: add fw_cfg device node to dsdt, Laszlo Ersek, 2015/10/08