In the SMM build, only an SMM driver is using the address range hence we
do not need to expose the flash MMIO range in EFI runtime mapping.
Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Cc: Anthony Perard <anthony.perard@citrix.com>
Cc: Julien Grall <julien.grall@linaro.org>
Cc: Justen Jordan L <jordan.l.justen@intel.com>
Cc: Laszlo Ersek <lersek@redhat.com>
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Brijesh Singh <brijesh.singh@amd.com>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Regression-tested-by: Laszlo Ersek <lersek@redhat.com>
When the user requires "security" by passing -D SMM_REQUIRE, and
consequently by setting PcdSmmSmramRequire, enforce flash-based variables.
Furthermore, add two ASSERT()s to catch if the wrong module were pulled
into the build.
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@19063 6f19259b-4bc3-4df7-8a09-765794883524
In preparation for introducing an SMM interface to this driver, move the
following traits to separate files, so that we can replace them in the new
SMM INF file:
- Protocol installations. The SMM driver will install protocol interfaces
in the SMM protocol database, using SMM services.
- Virtual address change handler and pointer conversions. SMM drivers run
with physical mappings and pointers must not be converted.
There are further restrictions and changes for an SMM driver, but the rest
of the code either complies with those already, or will handle the changes
transparently. For example:
- SMM drivers have access to both UEFI and SMM protocols in their entry
points (see the PI spec 1.4, "1.7 SMM Driver Initialization"),
- MemoryAllocationLib has an SMM instance that serves allocation requests
with the gSmst->SmmAllocatePool() service transparently, allocating
runtime-marked SMRAM.
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@18671 6f19259b-4bc3-4df7-8a09-765794883524
Brijesh Singh
Laszlo Ersek