SecurityPkg: Tcg2Smm: Separate Tcg2Smm into 2 modules
REF: https://bugzilla.tianocore.org/show_bug.cgi?id=3169 This change separated the original Tcg2Smm module into 2 drivers: the SMM driver that registers callback for physical presence and memory clear; the Tcg2Acpi driver that patches and publishes ACPI table for runtime use. Tcg2Smm introduced an SMI root handler to allow Tcg2Acpi to communicate the NVS region used by Tpm.asl and exchange the registered SwSmiValue. Lastly, Tcg2Smm driver will publish gTcg2MmSwSmiRegisteredGuid at the end of entrypoint to ensure Tcg2Acpi to load after Tcg2Smm is ready to communicate. Cc: Jiewen Yao <jiewen.yao@intel.com> Cc: Jian J Wang <jian.j.wang@intel.com> Cc: Qi Zhang <qi1.zhang@intel.com> Cc: Rahul Kumar <rahul1.kumar@intel.com> Signed-off-by: Kun Qin <kun.q@outlook.com> Reviewed-by: Jiewen Yao <Jiewen.yao@intel.com> Message-Id: <MWHPR06MB310295CC623EF7C062844DFFF3969@MWHPR06MB3102.namprd06.prod.outlook.com>
This commit is contained in:
Kun Qin
mergify[bot]
@@ -2,6 +2,7 @@
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The header file for Tcg2 SMM driver.
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Copyright (c) 2015 - 2018, Intel Corporation. All rights reserved.<BR>
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Copyright (c) Microsoft Corporation.
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SPDX-License-Identifier: BSD-2-Clause-Patent
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**/
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@@ -9,13 +10,13 @@ SPDX-License-Identifier: BSD-2-Clause-Patent
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#ifndef __TCG2_SMM_H__
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#define __TCG2_SMM_H__
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#include <PiDxe.h>
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#include <IndustryStandard/Acpi.h>
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#include <IndustryStandard/Tpm2Acpi.h>
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#include <PiMm.h>
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#include <Guid/MemoryOverwriteControl.h>
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#include <Guid/TpmInstance.h>
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#include <Guid/TpmNvsMm.h>
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#include <Protocol/MmReadyToLock.h>
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#include <Protocol/SmmSwDispatch2.h>
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#include <Protocol/AcpiTable.h>
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#include <Protocol/SmmVariable.h>
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@@ -25,56 +26,14 @@ SPDX-License-Identifier: BSD-2-Clause-Patent
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#include <Library/BaseMemoryLib.h>
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#include <Library/DebugLib.h>
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#include <Library/MmServicesTableLib.h>
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#include <Library/UefiDriverEntryPoint.h>
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#include <Library/UefiBootServicesTableLib.h>
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#include <Library/DxeServicesLib.h>
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#include <Library/TpmMeasurementLib.h>
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#include <Library/Tpm2CommandLib.h>
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#include <Library/Tcg2PhysicalPresenceLib.h>
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#include <Library/IoLib.h>
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#include <Library/PrintLib.h>
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#include <Library/PcdLib.h>
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#include <Library/Tpm2DeviceLib.h>
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#include <IndustryStandard/TpmPtp.h>
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#pragma pack(1)
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typedef struct {
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UINT8 SoftwareSmi;
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UINT32 Parameter;
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UINT32 Response;
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UINT32 Request;
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UINT32 RequestParameter;
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UINT32 LastRequest;
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UINT32 ReturnCode;
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} PHYSICAL_PRESENCE_NVS;
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typedef struct {
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UINT8 SoftwareSmi;
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UINT32 Parameter;
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UINT32 Request;
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UINT32 ReturnCode;
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} MEMORY_CLEAR_NVS;
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typedef struct {
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PHYSICAL_PRESENCE_NVS PhysicalPresence;
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MEMORY_CLEAR_NVS MemoryClear;
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UINT32 PPRequestUserConfirm;
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UINT32 TpmIrqNum;
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BOOLEAN IsShortFormPkgLength;
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} TCG_NVS;
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typedef struct {
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UINT8 OpRegionOp;
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UINT32 NameString;
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UINT8 RegionSpace;
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UINT8 DWordPrefix;
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UINT32 RegionOffset;
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UINT8 BytePrefix;
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UINT8 RegionLen;
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} AML_OP_REGION_32_8;
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#pragma pack()
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//
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// The definition for TCG MOR
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//
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@@ -87,36 +46,42 @@ typedef struct {
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#define MOR_REQUEST_SUCCESS 0
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#define MOR_REQUEST_GENERAL_FAILURE 1
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//
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// Physical Presence Interface Version supported by Platform
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//
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#define PHYSICAL_PRESENCE_VERSION_TAG "$PV"
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#define PHYSICAL_PRESENCE_VERSION_SIZE 4
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/**
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Notify the system that the SMM variable driver is ready.
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**/
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VOID
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Tcg2NotifyMmReady (
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VOID
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);
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//
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// PNP _HID for TPM2 device
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//
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#define TPM_HID_TAG "NNNN0000"
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#define TPM_HID_PNP_SIZE 8
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#define TPM_HID_ACPI_SIZE 9
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/**
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This function is an abstraction layer for implementation specific Mm buffer validation routine.
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#define TPM_PRS_RESL "RESL"
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#define TPM_PRS_RESS "RESS"
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#define TPM_PRS_RES_NAME_SIZE 4
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//
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// Minimum PRS resource template size
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// 1 byte for BufferOp
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// 1 byte for PkgLength
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// 2 bytes for BufferSize
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// 12 bytes for Memory32Fixed descriptor
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// 5 bytes for Interrupt descriptor
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// 2 bytes for END Tag
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//
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#define TPM_POS_RES_TEMPLATE_MIN_SIZE (1 + 1 + 2 + 12 + 5 + 2)
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@param Buffer The buffer start address to be checked.
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@param Length The buffer length to be checked.
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@retval TRUE This buffer is valid per processor architecture and not overlap with SMRAM.
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@retval FALSE This buffer is not valid per processor architecture or overlap with SMRAM.
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**/
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BOOLEAN
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IsBufferOutsideMmValid (
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IN EFI_PHYSICAL_ADDRESS Buffer,
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IN UINT64 Length
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);
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/**
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The driver's common initialization routine.
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It install callbacks for TPM physical presence and MemoryClear, and locate
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SMM variable to be used in the callback function.
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@retval EFI_SUCCESS The entry point is executed successfully.
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@retval Others Some error occurs when executing this entry point.
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**/
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EFI_STATUS
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InitializeTcgCommon (
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VOID
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);
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//
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// Max Interrupt buffer size for PRS interrupt resource
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// Now support 15 interrupts in maxmum
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//
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#define MAX_PRS_INT_BUF_SIZE (15*4)
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#endif // __TCG_SMM_H__
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