This driver provides EFI_SMM_CPU_IO2_PROTOCOL, which the SMM core depends
on in its gEfiDxeSmmReadyToLockProtocolGuid callback
(SmmReadyToLockHandler(), "MdeModulePkg/Core/PiSmmCore/PiSmmCore.c").

Approached on a higher level, this driver provides the SmmIo member of the
EFI_SMM_SYSTEM_TABLE2 (SMST).

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Laszlo Ersek <ler...@redhat.com>
Reviewed-by: Jordan Justen <jordan.l.jus...@intel.com>
---
 OvmfPkg/OvmfPkgIa32.dsc    | 11 +++++++++++
 OvmfPkg/OvmfPkgIa32X64.dsc | 11 +++++++++++
 OvmfPkg/OvmfPkgX64.dsc     | 11 +++++++++++
 OvmfPkg/OvmfPkgIa32.fdf    |  9 +++++++++
 OvmfPkg/OvmfPkgIa32X64.fdf |  9 +++++++++
 OvmfPkg/OvmfPkgX64.fdf     |  9 +++++++++
 6 files changed, 60 insertions(+)

diff --git a/OvmfPkg/OvmfPkgIa32.dsc b/OvmfPkg/OvmfPkgIa32.dsc
index ca3be30..6cfd58e 100644
--- a/OvmfPkg/OvmfPkgIa32.dsc
+++ b/OvmfPkg/OvmfPkgIa32.dsc
@@ -292,6 +292,12 @@ [LibraryClasses.common.UEFI_APPLICATION]
 [LibraryClasses.common.DXE_SMM_DRIVER]
   PcdLib|MdePkg/Library/DxePcdLib/DxePcdLib.inf
   TimerLib|OvmfPkg/Library/AcpiTimerLib/DxeAcpiTimerLib.inf
+  
SmmServicesTableLib|MdePkg/Library/SmmServicesTableLib/SmmServicesTableLib.inf
+!ifdef $(DEBUG_ON_SERIAL_PORT)
+  DebugLib|MdePkg/Library/BaseDebugLibSerialPort/BaseDebugLibSerialPort.inf
+!else
+  DebugLib|OvmfPkg/Library/PlatformDebugLibIoPort/PlatformDebugLibIoPort.inf
+!endif
 
 [LibraryClasses.common.SMM_CORE]
   PcdLib|MdePkg/Library/DxePcdLib/DxePcdLib.inf
@@ -697,4 +703,9 @@ [Components]
   # SMM_CORE
   #
   MdeModulePkg/Core/PiSmmCore/PiSmmCore.inf
+
+  #
+  # Privileged drivers (DXE_SMM_DRIVER modules)
+  #
+  UefiCpuPkg/CpuIo2Smm/CpuIo2Smm.inf
 !endif
diff --git a/OvmfPkg/OvmfPkgIa32X64.dsc b/OvmfPkg/OvmfPkgIa32X64.dsc
index 60f085a..6679e8a 100644
--- a/OvmfPkg/OvmfPkgIa32X64.dsc
+++ b/OvmfPkg/OvmfPkgIa32X64.dsc
@@ -297,6 +297,12 @@ [LibraryClasses.common.UEFI_APPLICATION]
 [LibraryClasses.common.DXE_SMM_DRIVER]
   PcdLib|MdePkg/Library/DxePcdLib/DxePcdLib.inf
   TimerLib|OvmfPkg/Library/AcpiTimerLib/DxeAcpiTimerLib.inf
+  
SmmServicesTableLib|MdePkg/Library/SmmServicesTableLib/SmmServicesTableLib.inf
+!ifdef $(DEBUG_ON_SERIAL_PORT)
+  DebugLib|MdePkg/Library/BaseDebugLibSerialPort/BaseDebugLibSerialPort.inf
+!else
+  DebugLib|OvmfPkg/Library/PlatformDebugLibIoPort/PlatformDebugLibIoPort.inf
+!endif
 
 [LibraryClasses.common.SMM_CORE]
   PcdLib|MdePkg/Library/DxePcdLib/DxePcdLib.inf
@@ -704,4 +710,9 @@ [Components.X64]
   # SMM_CORE
   #
   MdeModulePkg/Core/PiSmmCore/PiSmmCore.inf
+
+  #
+  # Privileged drivers (DXE_SMM_DRIVER modules)
+  #
+  UefiCpuPkg/CpuIo2Smm/CpuIo2Smm.inf
 !endif
diff --git a/OvmfPkg/OvmfPkgX64.dsc b/OvmfPkg/OvmfPkgX64.dsc
index 0621292..2651042 100644
--- a/OvmfPkg/OvmfPkgX64.dsc
+++ b/OvmfPkg/OvmfPkgX64.dsc
@@ -297,6 +297,12 @@ [LibraryClasses.common.UEFI_APPLICATION]
 [LibraryClasses.common.DXE_SMM_DRIVER]
   PcdLib|MdePkg/Library/DxePcdLib/DxePcdLib.inf
   TimerLib|OvmfPkg/Library/AcpiTimerLib/DxeAcpiTimerLib.inf
+  
SmmServicesTableLib|MdePkg/Library/SmmServicesTableLib/SmmServicesTableLib.inf
+!ifdef $(DEBUG_ON_SERIAL_PORT)
+  DebugLib|MdePkg/Library/BaseDebugLibSerialPort/BaseDebugLibSerialPort.inf
+!else
+  DebugLib|OvmfPkg/Library/PlatformDebugLibIoPort/PlatformDebugLibIoPort.inf
+!endif
 
 [LibraryClasses.common.SMM_CORE]
   PcdLib|MdePkg/Library/DxePcdLib/DxePcdLib.inf
@@ -702,4 +708,9 @@ [Components]
   # SMM_CORE
   #
   MdeModulePkg/Core/PiSmmCore/PiSmmCore.inf
+
+  #
+  # Privileged drivers (DXE_SMM_DRIVER modules)
+  #
+  UefiCpuPkg/CpuIo2Smm/CpuIo2Smm.inf
 !endif
diff --git a/OvmfPkg/OvmfPkgIa32.fdf b/OvmfPkg/OvmfPkgIa32.fdf
index f705918..e908198 100644
--- a/OvmfPkg/OvmfPkgIa32.fdf
+++ b/OvmfPkg/OvmfPkgIa32.fdf
@@ -360,6 +360,7 @@ [FV.DXEFV]
 INF  OvmfPkg/SmmControl2Dxe/SmmControl2Dxe.inf
 INF  MdeModulePkg/Core/PiSmmCore/PiSmmIpl.inf
 INF  MdeModulePkg/Core/PiSmmCore/PiSmmCore.inf
+INF  UefiCpuPkg/CpuIo2Smm/CpuIo2Smm.inf
 !endif
 
 
################################################################################
@@ -495,3 +496,11 @@ [Rule.Common.SMM_CORE]
     UI       STRING="$(MODULE_NAME)" Optional
     VERSION  STRING="$(INF_VERSION)" Optional BUILD_NUM=$(BUILD_NUMBER)
   }
+
+[Rule.Common.DXE_SMM_DRIVER]
+  FILE SMM = $(NAMED_GUID) {
+    SMM_DEPEX    SMM_DEPEX Optional      $(INF_OUTPUT)/$(MODULE_NAME).depex
+    PE32     PE32                    $(INF_OUTPUT)/$(MODULE_NAME).efi
+    UI       STRING="$(MODULE_NAME)" Optional
+    VERSION  STRING="$(INF_VERSION)" Optional BUILD_NUM=$(BUILD_NUMBER)
+  }
diff --git a/OvmfPkg/OvmfPkgIa32X64.fdf b/OvmfPkg/OvmfPkgIa32X64.fdf
index 93a8d44..5300a71 100644
--- a/OvmfPkg/OvmfPkgIa32X64.fdf
+++ b/OvmfPkg/OvmfPkgIa32X64.fdf
@@ -360,6 +360,7 @@ [FV.DXEFV]
 INF  OvmfPkg/SmmControl2Dxe/SmmControl2Dxe.inf
 INF  MdeModulePkg/Core/PiSmmCore/PiSmmIpl.inf
 INF  MdeModulePkg/Core/PiSmmCore/PiSmmCore.inf
+INF  UefiCpuPkg/CpuIo2Smm/CpuIo2Smm.inf
 !endif
 
 
################################################################################
@@ -495,3 +496,11 @@ [Rule.Common.SMM_CORE]
     UI       STRING="$(MODULE_NAME)" Optional
     VERSION  STRING="$(INF_VERSION)" Optional BUILD_NUM=$(BUILD_NUMBER)
   }
+
+[Rule.Common.DXE_SMM_DRIVER]
+  FILE SMM = $(NAMED_GUID) {
+    SMM_DEPEX    SMM_DEPEX Optional      $(INF_OUTPUT)/$(MODULE_NAME).depex
+    PE32     PE32                    $(INF_OUTPUT)/$(MODULE_NAME).efi
+    UI       STRING="$(MODULE_NAME)" Optional
+    VERSION  STRING="$(INF_VERSION)" Optional BUILD_NUM=$(BUILD_NUMBER)
+  }
diff --git a/OvmfPkg/OvmfPkgX64.fdf b/OvmfPkg/OvmfPkgX64.fdf
index 3c24aed..94a77d6 100644
--- a/OvmfPkg/OvmfPkgX64.fdf
+++ b/OvmfPkg/OvmfPkgX64.fdf
@@ -360,6 +360,7 @@ [FV.DXEFV]
 INF  OvmfPkg/SmmControl2Dxe/SmmControl2Dxe.inf
 INF  MdeModulePkg/Core/PiSmmCore/PiSmmIpl.inf
 INF  MdeModulePkg/Core/PiSmmCore/PiSmmCore.inf
+INF  UefiCpuPkg/CpuIo2Smm/CpuIo2Smm.inf
 !endif
 
 
################################################################################
@@ -495,3 +496,11 @@ [Rule.Common.SMM_CORE]
     UI       STRING="$(MODULE_NAME)" Optional
     VERSION  STRING="$(INF_VERSION)" Optional BUILD_NUM=$(BUILD_NUMBER)
   }
+
+[Rule.Common.DXE_SMM_DRIVER]
+  FILE SMM = $(NAMED_GUID) {
+    SMM_DEPEX    SMM_DEPEX Optional      $(INF_OUTPUT)/$(MODULE_NAME).depex
+    PE32     PE32                    $(INF_OUTPUT)/$(MODULE_NAME).efi
+    UI       STRING="$(MODULE_NAME)" Optional
+    VERSION  STRING="$(INF_VERSION)" Optional BUILD_NUM=$(BUILD_NUMBER)
+  }
-- 
1.8.3.1


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