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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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10
ArmPlatformPkg/ArmVirtualizationPkg/VirtFdtDxe/VirtFdtDxe.c
View File

@@ -24,10 +24,12 @@
#include <Library/DevicePathLib.h>
#include <Library/PcdLib.h>
#include <Library/DxeServicesLib.h>
#include <Library/HobLib.h>
#include <libfdt.h>
#include <Guid/Fdt.h>
#include <Guid/VirtioMmioTransport.h>
#include <Guid/FdtHob.h>
#pragma pack (1)
typedef struct {
@@ -277,6 +279,7 @@ InitializeVirtFdtDxe (
IN EFI_SYSTEM_TABLE *SystemTable
)
{
VOID *Hob;
VOID *DeviceTreeBase;
INT32 Node, Prev;
INT32 RtcNode;
@@ -297,8 +300,11 @@ InitializeVirtFdtDxe (
UINT64 FwCfgDataAddress;
UINT64 FwCfgDataSize;
DeviceTreeBase = (VOID *)(UINTN)PcdGet64 (PcdDeviceTreeBaseAddress);
ASSERT (DeviceTreeBase != NULL);
Hob = GetFirstGuidHob(&gFdtHobGuid);
if (Hob == NULL || GET_GUID_HOB_DATA_SIZE (Hob) != sizeof (UINT64)) {
return EFI_NOT_FOUND;
}
DeviceTreeBase = (VOID *)(UINTN)*(UINT64 *)GET_GUID_HOB_DATA (Hob);
if (fdt_check_header (DeviceTreeBase) != 0) {
DEBUG ((EFI_D_ERROR, "%a: No DTB found @ 0x%p\n", __FUNCTION__, DeviceTreeBase));

3
ArmPlatformPkg/ArmVirtualizationPkg/VirtFdtDxe/VirtFdtDxe.inf
View File

@@ -41,13 +41,14 @@
DxeServicesLib
FdtLib
VirtioMmioDeviceLib
HobLib
[Guids]
gFdtTableGuid
gVirtioMmioTransportGuid
gFdtHobGuid
[Pcd]
gArmVirtualizationTokenSpaceGuid.PcdDeviceTreeBaseAddress
gArmVirtualizationTokenSpaceGuid.PcdArmPsciMethod
gArmVirtualizationTokenSpaceGuid.PcdFwCfgSelectorAddress
gArmVirtualizationTokenSpaceGuid.PcdFwCfgDataAddress