On Thu, 28 Apr 2022 at 11:53, Edward Pickup <edward.pic...@arm.com> wrote:
>
> When booting Linux on FVP RevC, Linux reports the following error:
>
> ACPI: IORT: [Firmware Bug]: Root complex missing memory address limit
>
> This issue is due to the RC Address Limit not being configured in the
> configuration manager for the platform.
>
> Set the value to 64 as the RevC FVP can use the full width, fixing the
> error.
>
> Signed-off-by: Edward Pickup <edward.pic...@arm.com>
> ---
>
> The changes can be seen at
> https://github.com/edpickup/edk2-platforms/tree/1700_fix_IORT_RC_Addr_Limit_v2
>
> Notes:
> v2:
> - Corrected Memory Address Size Limit [Ard]
>
Reviewed-by: Ard Biesheuvel <a...@kernel.org>
Pushed as 1ba46425cf8d..38855c561f90
Thanks,
>
> Platform/ARM/VExpressPkg/ConfigurationManager/ConfigurationManagerDxe/ConfigurationManager.c
> | 4 +++-
> 1 file changed, 3 insertions(+), 1 deletion(-)
>
> diff --git
> a/Platform/ARM/VExpressPkg/ConfigurationManager/ConfigurationManagerDxe/ConfigurationManager.c
>
> b/Platform/ARM/VExpressPkg/ConfigurationManager/ConfigurationManagerDxe/ConfigurationManager.c
> index
> 776dec999eb1ef47910835987fa4dae1b69c52fd..0ba854610becff7d2544e26ec67a331783bbe75f
> 100644
> ---
> a/Platform/ARM/VExpressPkg/ConfigurationManager/ConfigurationManagerDxe/ConfigurationManager.c
> +++
> b/Platform/ARM/VExpressPkg/ConfigurationManager/ConfigurationManagerDxe/ConfigurationManager.c
> @@ -312,7 +312,9 @@ EDKII_PLATFORM_REPOSITORY_INFO VExpressPlatRepositoryInfo
> = {
> // ATS attributes
> EFI_ACPI_IORT_ROOT_COMPLEX_ATS_UNSUPPORTED,
> // PCI segment number
> - 0
> + 0,
> + // Memory Address Size Limit
> + 64
> },
>
> // Array of Device ID mappings
> --
> Guid("CE165669-3EF3-493F-B85D-6190EE5B9759")
>
>
>
>
>
>
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