[edk2-devel] [PATCH v4 1/1] IpmiFeaturePkg/GenericIpmi: Support Standalone MM

["Huang, Li-Xia" <lisa.huang@intel.com>]

Add Standalone Mm Generic Impi driver. And add type 'PcdsFixedAtBuild'
for PcdIpmiSmmIoBaseAddress to access in StandaloneMm driver

Cc: Abner Chang <Abner.Chang@amd.com>
Cc: Nate DeSimone <nathaniel.l.desimone@intel.com>
Signed-off-by: Lixia Huang <lisa.huang@intel.com>
---
 Features/Intel/OutOfBandManagement/IpmiFeaturePkg/GenericIpmi/StandaloneMm/StandaloneMmGenericIpmi.c   | 146 ++++++++++++++++++++
 Features/Intel/OutOfBandManagement/IpmiFeaturePkg/GenericIpmi/StandaloneMm/StandaloneMmGenericIpmi.inf |  51 +++++++
 Features/Intel/OutOfBandManagement/IpmiFeaturePkg/IpmiFeaturePkg.dec                                   |   2 +
 3 files changed, 199 insertions(+)

diff --git a/Features/Intel/OutOfBandManagement/IpmiFeaturePkg/GenericIpmi/StandaloneMm/StandaloneMmGenericIpmi.c b/Features/Intel/OutOfBandManagement/IpmiFeaturePkg/GenericIpmi/StandaloneMm/StandaloneMmGenericIpmi.c
new file mode 100644
index 000000000000..d808e2517c99
--- /dev/null
+++ b/Features/Intel/OutOfBandManagement/IpmiFeaturePkg/GenericIpmi/StandaloneMm/StandaloneMmGenericIpmi.c
@@ -0,0 +1,146 @@
+/** @file
+  Generic StandaloneMm IPMI stack driver
+
+  Copyright 2023 Intel Corporation. <BR>
+  SPDX-License-Identifier: BSD-2-Clause-Patent
+**/
+
+//
+// Statements that include other files
+//
+#include <IndustryStandard/Ipmi.h>
+#include <Uefi.h>
+#include <Library/BaseLib.h>
+#include <Library/SmmLib.h>
+#include <Library/DebugLib.h>
+#include <Library/BaseMemoryLib.h>
+#include <Library/MmServicesTableLib.h>
+#include <Library/MemoryAllocationLib.h>
+#include <Library/UefiBootServicesTableLib.h>
+#include <Library/IpmiBaseLib.h>
+#include <Library/TimerLib.h>
+#include <SmStatusCodes.h>
+#include "IpmiHooks.h"
+#include "IpmiBmcCommon.h"
+#include "IpmiBmc.h"
+
+IPMI_BMC_INSTANCE_DATA             *mIpmiInstance;
+EFI_HANDLE                         mHandle;
+
+/**
+Routine Description:
+  Setup and initialize the BMC for the SMM phase.  In order to verify the BMC is functioning
+  as expected, the BMC Selftest is performed.  The results are then checked and any errors are
+  reported to the error manager.  Errors are collected throughout this routine and reported
+  just prior to installing the driver.  If there are more errors than MAX_SOFT_COUNT, then they
+  will be ignored.
+
+Arguments:
+  ImageHandle - Handle of this driver image
+  SystemTable - Table containing standard EFI services
+
+Returns:
+  EFI_SUCCESS - Successful driver initialization
+
+**/
+EFI_STATUS
+SmmInitializeIpmiKcsPhysicalLayer (
+  VOID
+  )
+{
+  EFI_STATUS                       Status;
+
+  DEBUG ((DEBUG_INFO,"SmmInitializeIpmiKcsPhysicalLayer entry \n"));
+
+  Status = gMmst->MmAllocatePool (
+                    EfiRuntimeServicesData,
+                    sizeof (IPMI_BMC_INSTANCE_DATA),
+                    (VOID **)&mIpmiInstance);
+
+  if (EFI_ERROR (Status)) {
+    DEBUG ((DEBUG_ERROR, "mIpmiInstance mem alloc failed - 0x%x\n", Status));
+    return Status;
+  } else {
+
+    //
+    // Initialize the KCS transaction timeout. Assume delay unit is 1000 us.
+    //
+    mIpmiInstance->KcsTimeoutPeriod = (BMC_KCS_TIMEOUT * 1000*1000) / KCS_DELAY_UNIT;
+
+    //
+    // Initialize IPMI IO Base, we still use SMS IO base to get device ID and Seltest result since SMM IF may have different cmds supported
+    //
+    mIpmiInstance->IpmiIoBase                       = FixedPcdGet16 (PcdIpmiSmmIoBaseAddress);
+    mIpmiInstance->Signature                        = SM_IPMI_BMC_SIGNATURE;
+    mIpmiInstance->SlaveAddress                     = BMC_SLAVE_ADDRESS;
+    mIpmiInstance->BmcStatus                        = BMC_NOTREADY;
+    mIpmiInstance->IpmiTransport.IpmiSubmitCommand  = IpmiSendCommand;
+    mIpmiInstance->IpmiTransport.GetBmcStatus       = IpmiGetBmcStatus;
+
+    mHandle = NULL;
+    Status = gMmst->MmInstallProtocolInterface (
+                      &mHandle,
+                      &gSmmIpmiTransportProtocolGuid,
+                      EFI_NATIVE_INTERFACE,
+                      &mIpmiInstance->IpmiTransport
+                      );
+    ASSERT_EFI_ERROR (Status);
+
+    DEBUG ((DEBUG_INFO,"SmmInitializeIpmiKcsPhysicalLayer exit \n"));
+
+    return EFI_SUCCESS;
+  }
+}
+
+/**
+  The module Entry Point of driver.
+
+  @param[in]  ImageHandle    The firmware allocated handle for the EFI image.
+  @param[in]  SystemTable    A pointer to the MM System Table.
+
+  @retval EFI_SUCCESS    The entry point is executed successfully.
+  @retval Other          Some error occurs when executing this entry point.
+
+**/
+EFI_STATUS
+InitializeGenericIpmiStandaloneMm (
+  IN EFI_HANDLE             ImageHandle,
+  IN EFI_MM_SYSTEM_TABLE    *SystemTable
+  )
+{
+  SmmInitializeIpmiKcsPhysicalLayer ();
+  return EFI_SUCCESS;
+}
+
+/**
+  Unloads an image.
+
+  @param[in] ImageHandle        Handle that identifies the image to be unloaded.
+
+  @retval EFI_SUCCESS           The image has been unloaded.
+  @retval EFI_INVALID_PARAMETER ImageHandle is not a valid image handle.
+
+**/
+EFI_STATUS
+EFIAPI
+GenericIpmiStandaloneMmUnload (
+  IN EFI_HANDLE             ImageHandle
+  )
+{
+  EFI_STATUS                Status;
+
+  Status = EFI_SUCCESS;
+  if (mIpmiInstance != NULL) {
+    if (mHandle != NULL) {
+      Status = gMmst->MmUninstallProtocolInterface (
+                        mHandle,
+                        &gSmmIpmiTransportProtocolGuid,
+                        &mIpmiInstance->IpmiTransport
+                        );
+      ASSERT_EFI_ERROR (Status);
+    }
+    gMmst->MmFreePool (mIpmiInstance);
+  }
+
+  return Status;
+}
diff --git a/Features/Intel/OutOfBandManagement/IpmiFeaturePkg/GenericIpmi/StandaloneMm/StandaloneMmGenericIpmi.inf b/Features/Intel/OutOfBandManagement/IpmiFeaturePkg/GenericIpmi/StandaloneMm/StandaloneMmGenericIpmi.inf
new file mode 100644
index 000000000000..170e0a8d136b
--- /dev/null
+++ b/Features/Intel/OutOfBandManagement/IpmiFeaturePkg/GenericIpmi/StandaloneMm/StandaloneMmGenericIpmi.inf
@@ -0,0 +1,51 @@
+## @file
+# StandaloneMm Generic IPMI SMM Driver.
+#
+# Copyright 2023 Intel Corporation. <BR>
+# SPDX-License-Identifier: BSD-2-Clause-Patent
+##
+
+[Defines]
+  INF_VERSION                         = 0x00010017
+  BASE_NAME                           = StandaloneMmGenericIpmi
+  FILE_GUID                           = 6899c3ea-0920-414f-9555-ad2f00f81060
+  MODULE_TYPE                         = MM_STANDALONE
+  VERSION_STRING                      = 1.0
+  PI_SPECIFICATION_VERSION            = 0x00010032
+  ENTRY_POINT                         = InitializeGenericIpmiStandaloneMm
+  UNLOAD_IMAGE                        = GenericIpmiStandaloneMmUnload
+
+[Sources]
+  ../Common/IpmiHooks.h
+  ../Common/IpmiHooks.c
+  ../Common/IpmiBmcCommon.h
+  ../Common/KcsBmc.c
+  ../Common/KcsBmc.h
+  ../Common/IpmiBmc.c
+  ../Common/IpmiBmc.h
+  StandaloneMmGenericIpmi.c
+
+[Packages]
+  MdePkg/MdePkg.dec
+  IpmiFeaturePkg/IpmiFeaturePkg.dec
+
+[LibraryClasses]
+  MemoryAllocationLib
+  BaseLib
+  MmServicesTableLib
+  DebugLib
+  StandaloneMmDriverEntryPoint
+  IoLib
+  ReportStatusCodeLib
+  TimerLib
+
+[Protocols]
+  gSmmIpmiTransportProtocolGuid                     # PROTOCOL ALWAYS_PRODUCED
+
+[Guids]
+
+[Pcd]
+  gIpmiFeaturePkgTokenSpaceGuid.PcdIpmiSmmIoBaseAddress
+
+[Depex]
+  gIpmiTransportProtocolGuid
diff --git a/Features/Intel/OutOfBandManagement/IpmiFeaturePkg/IpmiFeaturePkg.dec b/Features/Intel/OutOfBandManagement/IpmiFeaturePkg/IpmiFeaturePkg.dec
index 5df71300cbd1..73dca30caae9 100644
--- a/Features/Intel/OutOfBandManagement/IpmiFeaturePkg/IpmiFeaturePkg.dec
+++ b/Features/Intel/OutOfBandManagement/IpmiFeaturePkg/IpmiFeaturePkg.dec
@@ -129,4 +129,6 @@
   gIpmiFeaturePkgTokenSpaceGuid.PcdIpmiIoBaseAddress|0xCA2|UINT16|0xD0000003
   gIpmiFeaturePkgTokenSpaceGuid.PcdSioMailboxBaseAddress|0x600|UINT32|0xD0000004
   gIpmiFeaturePkgTokenSpaceGuid.PcdIpmiBmcReadyDelayTimer|120|UINT8|0xD0000005
+
+[PcdsFixedAtBuild, PcdsDynamic, PcdsDynamicEx]
   gIpmiFeaturePkgTokenSpaceGuid.PcdIpmiSmmIoBaseAddress|0xCA2|UINT16|0xD0000006
-- 
2.26.2.windows.1



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