131818ba5a
Some redundant library classes and GUIDs have been removed in inf, .c and .h files. https://bugzilla.tianocore.org/show_bug.cgi?id=1044 https://bugzilla.tianocore.org/show_bug.cgi?id=1045 https://bugzilla.tianocore.org/show_bug.cgi?id=1047 https://bugzilla.tianocore.org/show_bug.cgi?id=1049 https://bugzilla.tianocore.org/show_bug.cgi?id=1051 https://bugzilla.tianocore.org/show_bug.cgi?id=1052 https://bugzilla.tianocore.org/show_bug.cgi?id=1053 https://bugzilla.tianocore.org/show_bug.cgi?id=1054 https://bugzilla.tianocore.org/show_bug.cgi?id=1055 https://bugzilla.tianocore.org/show_bug.cgi?id=1056 https://bugzilla.tianocore.org/show_bug.cgi?id=1017 https://bugzilla.tianocore.org/show_bug.cgi?id=1035 https://bugzilla.tianocore.org/show_bug.cgi?id=1033 https://bugzilla.tianocore.org/show_bug.cgi?id=1012 https://bugzilla.tianocore.org/show_bug.cgi?id=1011 https://bugzilla.tianocore.org/show_bug.cgi?id=1062 v2: 1. Correct copyright year. 2. Fix alignment issue in AcpiPlatformDxe.inf. 3. Add DevicePathLib which is removed before in I2cHostDxe.inf. 4. Update NvmExpressPei.inf, NvmExpressPei.h, IScsiDxe.inf, IScsiDxe.inf, IScsiDxe.h, DxeMain.inf, DxeMain.h, PiSmmCore.inf and PiSmmCore.h for https://bugzilla.tianocore.org/show_bug.cgi?id=1062. v3: 1. Add https://bugzilla.tianocore.org/show_bug.cgi?id=1062 to the link list. 2. Remove DevicePathLib from I2cHostDxe.inf. 3. Update NvmExpressPei.inf, NvmExpressPei.h, UfsPciHcDxe.inf, UfsPciHcDxe.h, I2cHostDxe.inf, AtaBusDxe.inf, IScsiDxe.inf, IScsiDxe.h, DxeMain.inf, DxeMain.h, PiSmmCore.inf and PiSmmCore.h for https://bugzilla.tianocore.org/show_bug.cgi?id=1062. (Forget to add UfsPciHcDxe.inf, UfsPciHcDxe.h, AtaBusDxe.inf, and I2cHostDxe.inf previously.) Cc: Star Zeng <star.zeng@intel.com> Cc: Eric Dong <eric.dong@intel.com> Contributed-under: TianoCore Contribution Agreement 1.1 Signed-off-by: shenglei <shenglei.zhang@intel.com> Reviewed-by: Star Zeng <star.zeng@intel.com>
99 lines
4.2 KiB
C
99 lines
4.2 KiB
C
/** @file
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A driver allocates common SMM communication buffer in EfiReservedMemoryType.
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This driver allocates common SMM communication buffer in EfiReservedMemoryType,
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then it publishes the information to EFI configuration table with
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gEdkiiPiSmmCommunicationRegionTableGuid.
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Any other driver or application can get the table and know the common
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communication buffer.
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Copyright (c) 2016, Intel Corporation. All rights reserved.<BR>
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This program and the accompanying materials
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are licensed and made available under the terms and conditions of the BSD License
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which accompanies this distribution. The full text of the license may be found at
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http://opensource.org/licenses/bsd-license.php
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THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
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WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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**/
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#include <PiDxe.h>
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#include <Library/UefiBootServicesTableLib.h>
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#include <Library/UefiRuntimeServicesTableLib.h>
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#include <Library/BaseLib.h>
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#include <Library/BaseMemoryLib.h>
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#include <Library/MemoryAllocationLib.h>
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#include <Library/DebugLib.h>
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#include <Library/UefiLib.h>
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#include <Guid/PiSmmCommunicationRegionTable.h>
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#define DEFAULT_COMMON_PI_SMM_COMMUNIATION_REGION_PAGES 4
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/**
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Entry Point for SMM communication buffer driver.
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@param[in] ImageHandle Image handle of this driver.
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@param[in] SystemTable A Pointer to the EFI System Table.
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@retval EFI_SUCEESS
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@return Others Some error occurs.
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**/
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EFI_STATUS
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EFIAPI
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SmmCommunicationBufferEntryPoint (
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IN EFI_HANDLE ImageHandle,
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IN EFI_SYSTEM_TABLE *SystemTable
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)
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{
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EFI_STATUS Status;
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UINT32 DescriptorSize;
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EDKII_PI_SMM_COMMUNICATION_REGION_TABLE *PiSmmCommunicationRegionTable;
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EFI_MEMORY_DESCRIPTOR *Entry;
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DescriptorSize = sizeof(EFI_MEMORY_DESCRIPTOR);
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//
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// Make sure Size != sizeof(EFI_MEMORY_DESCRIPTOR). This will
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// prevent people from having pointer math bugs in their code.
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// now you have to use *DescriptorSize to make things work.
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//
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DescriptorSize += sizeof(UINT64) - (DescriptorSize % sizeof (UINT64));
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//
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// Allocate and fill PiSmmCommunicationRegionTable
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//
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PiSmmCommunicationRegionTable = AllocateReservedPool (sizeof(EDKII_PI_SMM_COMMUNICATION_REGION_TABLE) + DescriptorSize);
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ASSERT(PiSmmCommunicationRegionTable != NULL);
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ZeroMem (PiSmmCommunicationRegionTable, sizeof(EDKII_PI_SMM_COMMUNICATION_REGION_TABLE) + DescriptorSize);
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PiSmmCommunicationRegionTable->Version = EDKII_PI_SMM_COMMUNICATION_REGION_TABLE_VERSION;
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PiSmmCommunicationRegionTable->NumberOfEntries = 1;
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PiSmmCommunicationRegionTable->DescriptorSize = DescriptorSize;
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Entry = (EFI_MEMORY_DESCRIPTOR *)(PiSmmCommunicationRegionTable + 1);
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Entry->Type = EfiConventionalMemory;
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Entry->PhysicalStart = (EFI_PHYSICAL_ADDRESS)(UINTN)AllocateReservedPages (DEFAULT_COMMON_PI_SMM_COMMUNIATION_REGION_PAGES);
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ASSERT(Entry->PhysicalStart != 0);
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Entry->VirtualStart = 0;
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Entry->NumberOfPages = DEFAULT_COMMON_PI_SMM_COMMUNIATION_REGION_PAGES;
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Entry->Attribute = 0;
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DEBUG ((EFI_D_INFO, "PiSmmCommunicationRegionTable:(0x%x)\n", PiSmmCommunicationRegionTable));
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DEBUG ((EFI_D_INFO, " Version - 0x%x\n", PiSmmCommunicationRegionTable->Version));
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DEBUG ((EFI_D_INFO, " NumberOfEntries - 0x%x\n", PiSmmCommunicationRegionTable->NumberOfEntries));
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DEBUG ((EFI_D_INFO, " DescriptorSize - 0x%x\n", PiSmmCommunicationRegionTable->DescriptorSize));
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DEBUG ((EFI_D_INFO, "Entry:(0x%x)\n", Entry));
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DEBUG ((EFI_D_INFO, " Type - 0x%x\n", Entry->Type));
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DEBUG ((EFI_D_INFO, " PhysicalStart - 0x%lx\n", Entry->PhysicalStart));
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DEBUG ((EFI_D_INFO, " VirtualStart - 0x%lx\n", Entry->VirtualStart));
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DEBUG ((EFI_D_INFO, " NumberOfPages - 0x%lx\n", Entry->NumberOfPages));
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DEBUG ((EFI_D_INFO, " Attribute - 0x%lx\n", Entry->Attribute));
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//
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// Publish this table, so that other driver can use the buffer.
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//
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Status = gBS->InstallConfigurationTable (&gEdkiiPiSmmCommunicationRegionTableGuid, PiSmmCommunicationRegionTable);
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ASSERT_EFI_ERROR (Status);
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return Status;
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}
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