diff options
Diffstat (limited to 'UnixPkg/UnixAutoScanPei/UnixAutoScan.c')
| -rw-r--r-- | UnixPkg/UnixAutoScanPei/UnixAutoScan.c | 145 |
1 files changed, 145 insertions, 0 deletions
diff --git a/UnixPkg/UnixAutoScanPei/UnixAutoScan.c b/UnixPkg/UnixAutoScanPei/UnixAutoScan.c new file mode 100644 index 0000000000..34f50986ad --- /dev/null +++ b/UnixPkg/UnixAutoScanPei/UnixAutoScan.c @@ -0,0 +1,145 @@ +/*++
+
+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:
+ UnixAutoscan.c
+
+Abstract:
+ This PEIM to abstract memory auto-scan in an Unix environment.
+
+Revision History
+
+--*/
+
+#include "PiPei.h"
+#include <Ppi/UnixAutoScan.h>
+#include <Ppi/BaseMemoryTest.h>
+#include <Ppi/MemoryDiscovered.h>
+
+#include <Library/DebugLib.h>
+#include <Library/PeimEntryPoint.h>
+#include <Library/BaseLib.h>
+#include <Library/BaseMemoryLib.h>
+#include <Library/HobLib.h>
+#include <Library/PeiServicesLib.h>
+#include <Library/PeiServicesTablePointerLib.h>
+
+EFI_STATUS
+EFIAPI
+PeimInitializeUnixAutoScan (
+ IN EFI_FFS_FILE_HEADER *FfsHeader,
+ IN EFI_PEI_SERVICES **PeiServices
+ )
+/*++
+
+Routine Description:
+ Perform a call-back into the SEC simulator to get a memory value
+
+Arguments:
+ FfsHeader - General purpose data available to every PEIM
+ PeiServices - General purpose services available to every PEIM.
+
+Returns:
+ None
+
+--*/
+{
+ EFI_STATUS Status;
+ EFI_PEI_PPI_DESCRIPTOR *PpiDescriptor;
+ PEI_UNIX_AUTOSCAN_PPI *PeiUnixService;
+ UINT64 MemorySize;
+ EFI_PHYSICAL_ADDRESS MemoryBase;
+ PEI_BASE_MEMORY_TEST_PPI *MemoryTestPpi;
+ EFI_PHYSICAL_ADDRESS ErrorAddress;
+ UINTN Index;
+ EFI_RESOURCE_ATTRIBUTE_TYPE Attributes;
+
+
+ DEBUG ((EFI_D_ERROR, "Unix Autoscan PEIM Loaded\n"));
+
+ //
+ // Get the PEI UNIX Autoscan PPI
+ //
+ Status = (**PeiServices).LocatePpi (
+ PeiServices,
+ &gPeiUnixAutoScanPpiGuid, // GUID
+ 0, // INSTANCE
+ &PpiDescriptor, // EFI_PEI_PPI_DESCRIPTOR
+ (VOID **)&PeiUnixService // PPI
+ );
+ ASSERT_EFI_ERROR (Status);
+
+ //
+ // Get the Memory Test PPI
+ //
+ Status = (**PeiServices).LocatePpi (
+ PeiServices,
+ &gPeiBaseMemoryTestPpiGuid,
+ 0,
+ NULL,
+ (VOID **)&MemoryTestPpi
+ );
+ ASSERT_EFI_ERROR (Status);
+
+ Index = 0;
+ do {
+ Status = PeiUnixService->UnixAutoScan (Index, &MemoryBase, &MemorySize);
+ if (!EFI_ERROR (Status)) {
+ Attributes =
+ (
+ EFI_RESOURCE_ATTRIBUTE_PRESENT |
+ EFI_RESOURCE_ATTRIBUTE_INITIALIZED |
+ EFI_RESOURCE_ATTRIBUTE_UNCACHEABLE |
+ EFI_RESOURCE_ATTRIBUTE_WRITE_COMBINEABLE |
+ EFI_RESOURCE_ATTRIBUTE_WRITE_THROUGH_CACHEABLE |
+ EFI_RESOURCE_ATTRIBUTE_WRITE_BACK_CACHEABLE
+ );
+
+ if (Index == 0) {
+ //
+ // For the first area register it as PEI tested memory
+ //
+ Status = MemoryTestPpi->BaseMemoryTest (
+ PeiServices,
+ MemoryTestPpi,
+ MemoryBase,
+ MemorySize,
+ Quick,
+ &ErrorAddress
+ );
+ ASSERT_EFI_ERROR (Status);
+
+ //
+ // Register the "tested" memory with the PEI Core
+ //
+ Status = (**PeiServices).InstallPeiMemory (PeiServices, MemoryBase, MemorySize);
+ ASSERT_EFI_ERROR (Status);
+
+ Attributes |= EFI_RESOURCE_ATTRIBUTE_TESTED;
+ }
+
+ BuildResourceDescriptorHob (
+ EFI_RESOURCE_SYSTEM_MEMORY,
+ Attributes,
+ MemoryBase,
+ MemorySize
+ );
+ }
+ Index++;
+ } while (!EFI_ERROR (Status));
+
+ //
+ // Build the CPU hob with 36-bit addressing and 16-bits of IO space.
+ //
+ BuildCpuHob (36, 16);
+
+ return Status;
+}
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