[PATCH] acpi: Fix table length for QEMU

[Heinrich Schuchardt]

On 4/3/25 07:53, Ilias Apalodimas wrote:
> On Thu, 3 Apr 2025 at 08:34, Ilias Apalodimas
> <ilias.apalodimas at linaro.org> wrote:
>>
>> The end of the ACPI table is set to 'addr' instead of 'end'. The ACPI
>> code for QEMU relies on those values to mark memory as 'ACPI Reclaim'
>> and as a result the ACPI RSDP ends up in Boot services Data.
>>
>> Reported-by: bjorn at kernel.org
>
> I obviously messed up my reported-by...

Reported-by: Björn Töpel <bjorn at kernel.org>
Reviewed-by: Heinrich Schuchardt <xypron.glpk at gmx.de>

>
>> Fixes: commit 638cc363484b ("acpi: enable writing ACPI tables on QEMU")
>> Signed-off-by: Ilias Apalodimas <ilias.apalodimas at linaro.org>
>> ---
>>   drivers/misc/qfw_acpi.c | 2 +-
>>   1 file changed, 1 insertion(+), 1 deletion(-)
>>
>> diff --git a/drivers/misc/qfw_acpi.c b/drivers/misc/qfw_acpi.c
>> index 0d0cf7646890..77cebae5e3fd 100644
>> --- a/drivers/misc/qfw_acpi.c
>> +++ b/drivers/misc/qfw_acpi.c
>> @@ -305,7 +305,7 @@ static int evt_write_acpi_tables(void)
>>          /* Generate ACPI tables */
>>          end = write_acpi_tables(addr);
>>          gd->arch.table_start = addr;
>> -       gd->arch.table_end = addr;
>> +       gd->arch.table_end = end;
>>
>>          return 0;
>>   }
>> --
>> 2.49.0
>>