Remove EFI_RESOURCE_ATTRIBUTE_TESTED when reporting lower 640KB
memory so that the coreboot header is not erased before being
processed by CbParseMemoryInfo. This change is needed for
compatibility with SVN revision 18146.
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Scott Duplichan <sc...@notabs.org>
---
CorebootModulePkg/CbSupportPei/CbSupportPei.c | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/CorebootModulePkg/CbSupportPei/CbSupportPei.c
b/CorebootModulePkg/CbSupportPei/CbSupportPei.c
index 46b08d2..6b20ca9 100755
--- a/CorebootModulePkg/CbSupportPei/CbSupportPei.c
+++ b/CorebootModulePkg/CbSupportPei/CbSupportPei.c
@@ -186,12 +186,16 @@ CbPeiEntryPoint (
ASSERT (LowMemorySize > 0);
+ //
+ // 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 CbParseMemoryInfo.
+ //
BuildResourceDescriptorHob (
EFI_RESOURCE_SYSTEM_MEMORY,
(
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 |
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