From: Patrick Rudolph <patrick.rudo...@9elements.com>
Signed-off-by: Patrick Rudolph <patrick.rudo...@9elements.com>
Signed-off-by: Marcello Sylvester Bauer <marcello.ba...@9elements.com>
Cc: Maurice Ma <maurice...@intel.com>
Cc: Nate DeSimone <nathaniel.l.desim...@intel.com>
Cc: Star Zeng <star.z...@intel.com>
---
UefiPayloadPkg/BlSupportPei/BlSupportPei.c | 26 ++++++++++++++------
1 file changed, 19 insertions(+), 7 deletions(-)
diff --git a/UefiPayloadPkg/BlSupportPei/BlSupportPei.c
b/UefiPayloadPkg/BlSupportPei/BlSupportPei.c
index 22972453117a..b3ff065a537e 100644
--- a/UefiPayloadPkg/BlSupportPei/BlSupportPei.c
+++ b/UefiPayloadPkg/BlSupportPei/BlSupportPei.c
@@ -390,24 +390,36 @@ BlPeiEntryPoint (
EFI_PEI_GRAPHICS_DEVICE_INFO_HOB GfxDeviceInfo;
EFI_PEI_GRAPHICS_DEVICE_INFO_HOB *NewGfxDeviceInfo;
-
- //
- // Report lower 640KB of RAM. Attribute EFI_RESOURCE_ATTRIBUTE_TESTED
- // is intentionally omitted to prevent erasing of the coreboot header
- // record before it is processed by ParseMemoryInfo.
+ // Report lower 640KB of RAM.
+ // Mark memory as reserved to keep coreboot header in place.
//
BuildResourceDescriptorHob (
- EFI_RESOURCE_SYSTEM_MEMORY,
+ EFI_RESOURCE_MEMORY_RESERVED,
(
EFI_RESOURCE_ATTRIBUTE_PRESENT |
EFI_RESOURCE_ATTRIBUTE_INITIALIZED |
+ EFI_RESOURCE_ATTRIBUTE_TESTED |
EFI_RESOURCE_ATTRIBUTE_UNCACHEABLE |
EFI_RESOURCE_ATTRIBUTE_WRITE_COMBINEABLE |
EFI_RESOURCE_ATTRIBUTE_WRITE_THROUGH_CACHEABLE |
EFI_RESOURCE_ATTRIBUTE_WRITE_BACK_CACHEABLE
),
(EFI_PHYSICAL_ADDRESS)(0),
- (UINT64)(0xA0000)
+ (UINT64)(0x1000)
+ );
+
+ BuildResourceDescriptorHob (
+ EFI_RESOURCE_SYSTEM_MEMORY,
+ (
+ EFI_RESOURCE_ATTRIBUTE_PRESENT |
+ EFI_RESOURCE_ATTRIBUTE_INITIALIZED |
+ EFI_RESOURCE_ATTRIBUTE_UNCACHEABLE |
+ EFI_RESOURCE_ATTRIBUTE_WRITE_COMBINEABLE |
+ EFI_RESOURCE_ATTRIBUTE_WRITE_THROUGH_CACHEABLE |
+ EFI_RESOURCE_ATTRIBUTE_WRITE_BACK_CACHEABLE
+ ),
+ (EFI_PHYSICAL_ADDRESS)(0x1000),
+ (UINT64)(0x9F000)
);
BuildResourceDescriptorHob (
--
2.27.0
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