OvmfPkg: LockBox: use SMM stack with -D SMM_REQUIRE

During DXE, drivers save data in the LockBox. A save operation is layered
as follows:

- The unprivileged driver wishing to store data in the LockBox links
  against the "MdeModulePkg/Library/SmmLockBoxLib/SmmLockBoxDxeLib.inf"
  library instance.

  The library allows the unprivileged driver to format requests for the
  privileged SMM LockBox driver (see below), and to parse responses.

  We apply this resolution for DXE_DRIVER modules.

- The privileged SMM LockBox driver is built from
  "MdeModulePkg/Universal/LockBox/SmmLockBox/SmmLockBox.inf". This driver
  has module type DXE_SMM_DRIVER and can access SMRAM.

  The driver delegates command parsing and response formatting to
  "MdeModulePkg/Library/SmmLockBoxLib/SmmLockBoxSmmLib.inf".

  Therefore we include this DXE_SMM_DRIVER in the build, and apply said
  resolution specifically to it.

  (Including the driver requires us to resolve a few of other library
  classes for DXE_SMM_DRIVER modules.)

- In PEI, the S3 Resume PEIM (UefiCpuPkg/Universal/Acpi/S3Resume2Pei)
  retrieves data from the LockBox. It is capable of searching SMRAM
  itself.

  We resolve LockBoxLib to
  "MdeModulePkg/Library/SmmLockBoxLib/SmmLockBoxPeiLib.inf" specifically
  for this one PEIM.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Jordan Justen <jordan.l.justen@intel.com>

git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@19048 6f19259b-4bc3-4df7-8a09-765794883524

1 files changed, 16 insertions, 0 deletions

diff --git a/OvmfPkg/OvmfPkgIa32.dsc b/OvmfPkg/OvmfPkgIa32.dsc
index 413e05163a..4789d25363 100644
--- a/OvmfPkg/OvmfPkgIa32.dsc
+++ b/OvmfPkg/OvmfPkgIa32.dsc
@@ -105,7 +105,9 @@
   QemuFwCfgLib|OvmfPkg/Library/QemuFwCfgLib/QemuFwCfgLib.inf

   VirtioLib|OvmfPkg/Library/VirtioLib/VirtioLib.inf

   LoadLinuxLib|OvmfPkg/Library/LoadLinuxLib/LoadLinuxLib.inf

+!if $(SMM_REQUIRE) == FALSE

   LockBoxLib|OvmfPkg/Library/LockBoxLib/LockBoxBaseLib.inf

+!endif

   CustomizedDisplayLib|MdeModulePkg/Library/CustomizedDisplayLib/CustomizedDisplayLib.inf

 

 !ifdef $(SOURCE_DEBUG_ENABLE)

@@ -271,7 +273,11 @@
   DpcLib|MdeModulePkg/Library/DxeDpcLib/DxeDpcLib.inf

   PlatformBdsLib|OvmfPkg/Library/PlatformBdsLib/PlatformBdsLib.inf

   CpuExceptionHandlerLib|UefiCpuPkg/Library/CpuExceptionHandlerLib/DxeCpuExceptionHandlerLib.inf

+!if $(SMM_REQUIRE) == TRUE

+  LockBoxLib|MdeModulePkg/Library/SmmLockBoxLib/SmmLockBoxDxeLib.inf

+!else

   LockBoxLib|OvmfPkg/Library/LockBoxLib/LockBoxDxeLib.inf

+!endif

 !ifdef $(SOURCE_DEBUG_ENABLE)

   DebugAgentLib|SourceLevelDebugPkg/Library/DebugAgent/DxeDebugAgentLib.inf

 !endif

@@ -291,6 +297,9 @@
 [LibraryClasses.common.DXE_SMM_DRIVER]

   PcdLib|MdePkg/Library/DxePcdLib/DxePcdLib.inf

   TimerLib|OvmfPkg/Library/AcpiTimerLib/DxeAcpiTimerLib.inf

+  MemoryAllocationLib|MdePkg/Library/SmmMemoryAllocationLib/SmmMemoryAllocationLib.inf

+  HobLib|MdePkg/Library/DxeHobLib/DxeHobLib.inf

+  SmmMemLib|MdePkg/Library/SmmMemLib/SmmMemLib.inf

   SmmServicesTableLib|MdePkg/Library/SmmServicesTableLib/SmmServicesTableLib.inf

 !ifdef $(DEBUG_ON_SERIAL_PORT)

   DebugLib|MdePkg/Library/BaseDebugLibSerialPort/BaseDebugLibSerialPort.inf

@@ -437,6 +446,9 @@
   UefiCpuPkg/Universal/Acpi/S3Resume2Pei/S3Resume2Pei.inf {

     <LibraryClasses>

       PcdLib|MdePkg/Library/PeiPcdLib/PeiPcdLib.inf

+!if $(SMM_REQUIRE) == TRUE

+      LockBoxLib|MdeModulePkg/Library/SmmLockBoxLib/SmmLockBoxPeiLib.inf

+!endif

   }

 !if $(SMM_REQUIRE) == TRUE

   OvmfPkg/SmmAccess/SmmAccessPei.inf {

@@ -678,4 +690,8 @@
   # Privileged drivers (DXE_SMM_DRIVER modules)

   #

   UefiCpuPkg/CpuIo2Smm/CpuIo2Smm.inf

+  MdeModulePkg/Universal/LockBox/SmmLockBox/SmmLockBox.inf {

+    <LibraryClasses>

+      LockBoxLib|MdeModulePkg/Library/SmmLockBoxLib/SmmLockBoxSmmLib.inf

+  }

 !endif