[edk2-devel] [PATCH TEST edk2-platforms v1 1/1] Platform/ARM: FVP: set IORT RC address limit for FVP RevC

[Edward Pickup]

From: Edward Pickup <edward.pickup at arm.com>

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.

The default model parameter is configured to 32, so set this in the
configuration manager, fixing the error.

Signed-off-by: Edward Pickup <edward.pickup at arm.com>
---

The changes can be seen at https://github.com/edpickup/edk2-platforms/tree/1700_fix_IORT_RC_Addr_Limit_v1

 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..560937d7a3addee729148fd6deab2eb82fced9e2 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
+    32
   },
 
   // Array of Device ID mappings
-- 
Guid("CE165669-3EF3-493F-B85D-6190EE5B9759")



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