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ArmVirtualizationPkg: use a HOB to store device tree blob

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Instead of using a dynamic PCD, store the device tree address in a HOB
so that we can also run under a configuration that does not support
dynamic PCDs.

This also adds MemoryAllocationLib to the [LibraryClasses] section of
ArmVirtualizationPlatformLib/ArmVirtualizationPlatformLib.inf, as this
dependency was formerly satisfied transitively through one of the
library dependencies that were dropped.

Contributed-under: TianoCore Contribution Agreement 1.0
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Olivier Martin <olivier.martin@arm.com>
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Laszlo Ersek <lersek@redhat.com>

git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@16959 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
Ard Biesheuvel
2015-02-28 20:26:00 +00:00
committed by lersek
parent 337d450e20
commit cc667df08a
9 changed files with 48 additions and 16 deletions
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11
ArmPlatformPkg/ArmVirtualizationPkg/Library/PlatformPeiLib/PlatformPeiLib.c
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@@ -22,6 +22,7 @@
#include <libfdt.h>
#include <Guid/EarlyPL011BaseAddress.h>
#include <Guid/FdtHob.h>
EFI_STATUS
EFIAPI
@@ -32,6 +33,7 @@ PlatformPeim (
VOID *Base;
VOID *NewBase;
UINTN FdtSize;
UINT64 *FdtHobData;
UINT64 *UartHobData;
INT32 Node, Prev;
CONST CHAR8 *Compatible;
@@ -41,15 +43,18 @@ PlatformPeim (
UINT64 UartBase;
Base = (VOID*)(UINTN)FixedPcdGet64 (PcdDeviceTreeInitialBaseAddress);
Base = (VOID*)(UINTN)PcdGet64 (PcdDeviceTreeInitialBaseAddress);
ASSERT (Base != NULL);
ASSERT (fdt_check_header (Base) == 0);
FdtSize = fdt_totalsize (Base);
NewBase = AllocatePages (EFI_SIZE_TO_PAGES (FdtSize));
ASSERT (NewBase != NULL);
CopyMem (NewBase, Base, FdtSize);
PcdSet64 (PcdDeviceTreeBaseAddress, (UINT64)(UINTN)NewBase);
FdtHobData = BuildGuidHob (&gFdtHobGuid, sizeof *FdtHobData);
ASSERT (FdtHobData != NULL);
*FdtHobData = (UINTN)NewBase;
UartHobData = BuildGuidHob (&gEarlyPL011BaseAddressGuid, sizeof *UartHobData);
ASSERT (UartHobData != NULL);