[PATCH] acpi: move acpi_get_rsdp_addr() to acpi/acpi_table.h

Heinrich Schuchardt heinrich.schuchardt at canonical.com
Thu Nov 9 21:28:26 CET 2023


On 11/9/23 11:24, Tom Rini wrote:
> On Thu, Nov 09, 2023 at 09:23:02AM -0800, Heinrich Schuchardt wrote:
> 
>> Function acpi_get_rsdp_addr() is needed on all architectures which
>> write ACPI tables. Move the definition from the x86 include to an
>> architecture independent one.
>>
>> Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt at canonical.com>
>> ---
>>   arch/x86/include/asm/acpi_table.h | 9 ---------
>>   drivers/misc/qfw.c                | 1 +
>>   include/acpi/acpi_table.h         | 9 +++++++++
>>   3 files changed, 10 insertions(+), 9 deletions(-)
> 
> My question here is, does this work right on non-x86? I know you can
> have ACPI without UEFI on x86, but elsewhere doesn't the location have
> to be provided in some manner by UEFI? I know I'm thinking that's the
> case with SMBIOS (with a few exception).
> 
> I'm assuming you're doing something here with qemu and its qfw interface
> and risc-v.
> 

Hello Tom,

yes, I want to enable ACPI passthrough on QEMU RISC-V. There will be 
more patches needed. But the current change seemed obvious looking at 
the code so I did not want to pile up more patches first.

Do you know what the status of ACPI passthrough is on ARM?

Best regards

Heinrich


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