[edk2-devel] [PATCH v2 1/1] ArmPlatformPkg/PrePeiCore: Print the firmware version early in boot
Rebecca Cran
quic_rcran at quicinc.com
Fri Oct 7 11:38:05 UTC 2022
Copy code from PrePi to PrePeiCore that prints the firmware version
and build date early in the boot process.
Signed-off-by: Rebecca Cran <rebecca at quicinc.com>
---
ArmPlatformPkg/PrePeiCore/PrePeiCoreMPCore.inf | 3 +++
ArmPlatformPkg/PrePeiCore/PrePeiCoreUniCore.inf | 3 +++
ArmPlatformPkg/PrePeiCore/PrePeiCore.c | 14 ++++++++++++++
3 files changed, 20 insertions(+)
diff --git a/ArmPlatformPkg/PrePeiCore/PrePeiCoreMPCore.inf b/ArmPlatformPkg/PrePeiCore/PrePeiCoreMPCore.inf
index a5b4722459d1..4a3112b58dcb 100644
--- a/ArmPlatformPkg/PrePeiCore/PrePeiCoreMPCore.inf
+++ b/ArmPlatformPkg/PrePeiCore/PrePeiCoreMPCore.inf
@@ -54,6 +54,9 @@ [Ppis]
gEfiTemporaryRamSupportPpiGuid
gArmMpCoreInfoPpiGuid
+[Pcd]
+ gEfiMdeModulePkgTokenSpaceGuid.PcdFirmwareVersionString
+
[FeaturePcd]
gArmPlatformTokenSpaceGuid.PcdSendSgiToBringUpSecondaryCores
diff --git a/ArmPlatformPkg/PrePeiCore/PrePeiCoreUniCore.inf b/ArmPlatformPkg/PrePeiCore/PrePeiCoreUniCore.inf
index 466a2b01c384..ab5bf1dac2d8 100644
--- a/ArmPlatformPkg/PrePeiCore/PrePeiCoreUniCore.inf
+++ b/ArmPlatformPkg/PrePeiCore/PrePeiCoreUniCore.inf
@@ -52,6 +52,9 @@ [LibraryClasses]
[Ppis]
gEfiTemporaryRamSupportPpiGuid
+[Pcd]
+ gEfiMdeModulePkgTokenSpaceGuid.PcdFirmwareVersionString
+
[FeaturePcd]
gArmPlatformTokenSpaceGuid.PcdSendSgiToBringUpSecondaryCores
diff --git a/ArmPlatformPkg/PrePeiCore/PrePeiCore.c b/ArmPlatformPkg/PrePeiCore/PrePeiCore.c
index 9c4b25df953d..49df21aca92a 100644
--- a/ArmPlatformPkg/PrePeiCore/PrePeiCore.c
+++ b/ArmPlatformPkg/PrePeiCore/PrePeiCore.c
@@ -11,6 +11,8 @@
#include <Library/CacheMaintenanceLib.h>
#include <Library/DebugAgentLib.h>
#include <Library/ArmLib.h>
+#include <Library/PrintLib.h>
+#include <Library/SerialPortLib.h>
#include "PrePeiCore.h"
@@ -58,6 +60,9 @@ CEntryPoint (
IN EFI_PEI_CORE_ENTRY_POINT PeiCoreEntryPoint
)
{
+ CHAR8 Buffer[100];
+ UINTN CharCount;
+
// Data Cache enabled on Primary core when MMU is enabled.
ArmDisableDataCache ();
// Invalidate instruction cache
@@ -93,6 +98,15 @@ CEntryPoint (
// Invoke "ProcessLibraryConstructorList" to have all library constructors
// called.
ProcessLibraryConstructorList ();
+ CharCount = AsciiSPrint (
+ Buffer,
+ sizeof (Buffer),
+ "UEFI firmware (version %s built at %a on %a)\n\r",
+ (CHAR16 *)PcdGetPtr (PcdFirmwareVersionString),
+ __TIME__,
+ __DATE__
+ );
+ SerialPortWrite ((UINT8 *)Buffer, CharCount);
// Initialize the Debug Agent for Source Level Debugging
InitializeDebugAgent (DEBUG_AGENT_INIT_POSTMEM_SEC, NULL, NULL);
--
2.30.2
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