Re: AW: AW: [PATCH] x86: HPET force enable for Soekris net6501

H. Peter Anvin
2014-02-17T19:43:04Z

On 02/17/2014 11:25 AM, Thomas Renninger wrote:
> On Monday, February 17, 2014 10:47:50 AM H. Peter Anvin wrote:
>> On 02/17/2014 10:23 AM, Thomas Renninger wrote:
>>> Easiest I can think of instead of trying to modify RSDP or similar, is
>>> to still pass the tables via unzipped, glued cpio which the kernel
>>> can access early. The same way it is done for current ACPI table
>>> overriding
>>> and early microcode passing.
>>
>> We shouldn't *need* an RSDP and RSDT/XSDT, though, since all they are
>> are pointers to the actual tables. Rather than hacking around it we
>> should probably just fix the fundamental problem.
>
> That is what I described.
> If something similar what I wrote gets implemented, you can simply
> add ACPI tables to initrd as described here:
> Documentation/acpi/initrd_table_override.txt
> and if BIOS already provides them they get overridden, otherwise
> they get added.
>

Right, that was the idea. Thomas Gleixner said it didn't work.

-hpa