diff options
Diffstat (limited to 'UnixPkg/UnixFirmwareVolumePei/UnixFwh.c')
| -rw-r--r-- | UnixPkg/UnixFirmwareVolumePei/UnixFwh.c | 137 |
1 files changed, 137 insertions, 0 deletions
diff --git a/UnixPkg/UnixFirmwareVolumePei/UnixFwh.c b/UnixPkg/UnixFirmwareVolumePei/UnixFwh.c new file mode 100644 index 0000000000..2d3c6a380e --- /dev/null +++ b/UnixPkg/UnixFirmwareVolumePei/UnixFwh.c @@ -0,0 +1,137 @@ +/*++
+
+Copyright (c) 2006 - 2008, Intel Corporation
+All rights reserved. This program and the accompanying materials
+are licensed and made available under the terms and conditions of the BSD License
+which accompanies this distribution. The full text of the license may be found at
+http://opensource.org/licenses/bsd-license.php
+
+THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+
+Module Name:
+ UnixFwh.c
+
+Abstract:
+ PEIM to abstract construction of firmware volume in an Unix environment.
+
+Revision History
+
+--*/
+
+#include "PiPei.h"
+#include <Ppi/UnixFwh.h>
+#include <Library/DebugLib.h>
+#include <Library/PeimEntryPoint.h>
+#include <Library/HobLib.h>
+#include <Library/PeiServicesLib.h>
+#include <Library/PeiServicesTablePointerLib.h>
+#include <Library/PcdLib.h>
+
+EFI_STATUS
+EFIAPI
+PeimInitializeUnixFwh (
+ IN EFI_FFS_FILE_HEADER *FfsHeader,
+ IN EFI_PEI_SERVICES **PeiServices
+ )
+/*++
+
+Routine Description:
+ Perform a call-back into the SEC simulator to get address of the Firmware Hub
+
+Arguments:
+ FfsHeader - Ffs Header availible to every PEIM
+ PeiServices - General purpose services available to every PEIM.
+
+Returns:
+ None
+
+--*/
+{
+ EFI_STATUS Status;
+ EFI_PEI_PPI_DESCRIPTOR *PpiDescriptor;
+ UNIX_FWH_PPI *FwhPpi;
+ EFI_PHYSICAL_ADDRESS FdBase;
+ EFI_FIRMWARE_VOLUME_HEADER *FvHeader;
+ UINT64 FdSize;
+ UINTN Index;
+
+ DEBUG ((EFI_D_ERROR, "Unix Firmware Volume PEIM Loaded\n"));
+
+ //
+ // Get the Fwh Information PPI
+ //
+ Status = (**PeiServices).LocatePpi (
+ PeiServices,
+ &gUnixFwhPpiGuid, // GUID
+ 0, // INSTANCE
+ &PpiDescriptor, // EFI_PEI_PPI_DESCRIPTOR
+ (VOID **)&FwhPpi // PPI
+ );
+ ASSERT_EFI_ERROR (Status);
+
+ Index = 0;
+ do {
+ //
+ // Get information about all the FD's in the system
+ //
+ Status = FwhPpi->UnixFwh (Index, &FdBase, &FdSize);
+ if (!EFI_ERROR (Status)) {
+ //
+ // Assume the FD starts with an FV header
+ //
+ FvHeader = (EFI_FIRMWARE_VOLUME_HEADER *) (UINTN) FdBase;
+
+ //
+ // Make an FV Hob for the first FV in the FD
+ //
+ BuildFvHob (FdBase, FvHeader->FvLength);
+
+ if (Index == 0) {
+ //
+ // Assume the first FD was produced by the NT32.DSC
+ // All these strange offests are needed to keep in
+ // sync with the FlashMap and NT32.dsc file
+ //
+ BuildResourceDescriptorHob (
+ EFI_RESOURCE_FIRMWARE_DEVICE,
+ (EFI_RESOURCE_ATTRIBUTE_PRESENT | EFI_RESOURCE_ATTRIBUTE_INITIALIZED | EFI_RESOURCE_ATTRIBUTE_UNCACHEABLE),
+ FdBase,
+ (
+ FvHeader->FvLength +
+ PcdGet32 (PcdFlashNvStorageVariableSize) +
+ PcdGet32 (PcdFlashNvStorageFtwWorkingSize) +
+ PcdGet32 (PcdFlashNvStorageFtwSpareSize) +
+ PcdGet32 (PcdUnixFlashNvStorageEventLogSize)
+ )
+ );
+
+ //
+ // Hard code the address of the spare block and variable services.
+ // Assume it's a hard coded offset from FV0 in FD0.
+ //
+ FdSize =
+ PcdGet32 (PcdFlashNvStorageVariableSize) +
+ PcdGet32 (PcdFlashNvStorageFtwWorkingSize) +
+ PcdGet32 (PcdFlashNvStorageFtwSpareSize) +
+ PcdGet32 (PcdUnixFlashNvStorageEventLogSize);
+
+ BuildFvHob (FdBase + PcdGet32 (PcdUnixFlashNvStorageVariableBase), FdSize);
+ } else {
+ //
+ // For other FD's just map them in.
+ //
+ BuildResourceDescriptorHob (
+ EFI_RESOURCE_FIRMWARE_DEVICE,
+ (EFI_RESOURCE_ATTRIBUTE_PRESENT | EFI_RESOURCE_ATTRIBUTE_INITIALIZED | EFI_RESOURCE_ATTRIBUTE_UNCACHEABLE),
+ FdBase,
+ FdSize
+ );
+ }
+ }
+
+ Index++;
+ } while (!EFI_ERROR (Status));
+
+ return Status;
+}
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