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OvmfPkg/PlatformInitLib: Add PlatformGetLowMemoryCB

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Add PlatformGetLowMemoryCB() callback function for use with
PlatformScanE820().  It stores the low memory size in
PlatformInfoHob->LowMemory.  This replaces calls to
PlatformScanOrAdd64BitE820Ram() with non-NULL LowMemory.

Write any actions done (setting LowMemory) to the firmware log
with INFO loglevel.

Also change PlatformGetSystemMemorySizeBelow4gb() to likewise set
PlatformInfoHob->LowMemory instead of returning the value.  Update
all Callers to the new convention.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
This commit is contained in:
Gerd Hoffmann
2023-01-17 13:16:26 +01:00
committed by mergify[bot]
parent e037530468
commit 124b765051
6 changed files with 60 additions and 33 deletions
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7
OvmfPkg/Library/PeilessStartupLib/PeilessStartup.c
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@@ -41,8 +41,7 @@ InitializePlatform (
EFI_HOB_PLATFORM_INFO *PlatformInfoHob
)
{
UINT32 LowerMemorySize;
VOID *VariableStore;
VOID *VariableStore;
DEBUG ((DEBUG_INFO, "InitializePlatform in Pei-less boot\n"));
PlatformDebugDumpCmos ();
@@ -70,14 +69,14 @@ InitializePlatform (
PlatformInfoHob->PcdCpuBootLogicalProcessorNumber
));
LowerMemorySize = PlatformGetSystemMemorySizeBelow4gb (PlatformInfoHob);
PlatformGetSystemMemorySizeBelow4gb (PlatformInfoHob);
PlatformQemuUc32BaseInitialization (PlatformInfoHob);
DEBUG ((
DEBUG_INFO,
"Uc32Base = 0x%x, Uc32Size = 0x%x, LowerMemorySize = 0x%x\n",
PlatformInfoHob->Uc32Base,
PlatformInfoHob->Uc32Size,
LowerMemorySize
PlatformInfoHob->LowMemory
));
VariableStore = PlatformReserveEmuVariableNvStore ();