On some Arm platforms the boot firmware volume passed in the HOB
by the secure world firmware (TF-A) is never freed and is always
mapped as read-only.
On such platforms the heap memory can be saved by disabling the
shadow copy of the boot firmware volume. This is useful as on
some platforms the amount of memory available is limited.
Therefore, introduce a PCD PcdShadowBfv that platforms
can configure to disable the shadow boot FV. This PCD is set to
TRUE by default.
Signed-off-by: Levi Yun <yeoreum.yun@arm.com>
StandaloneMmCpu driver is only used for Arm architecture and
StandaloneMmCoreEntryPointLib for Arm has specific implementation with
StandaloneMmCpu driver.
Move StandaloneMmCpu Driver and StandaloneMmCoreEntryPointLib for Arm
to ArmPkg.
Continuous-integration-options: PatchCheck.ignore-multi-package
Signed-off-by: Levi Yun <yeoreum.yun@arm.com>
The default ExtractGuidedSectionLib used by Standalone MM is the
implementation in EmbeddedPkg. However, the ExtractGuidedSectionLib
implementation in EmbeddedPkg builds HOBs to save the extract handler
information.
Since StandaloneMm is consumer of HOB, not a HOB producer, introduce
a StandaloneMmExtraGuidedSectionLib implementation that saves the
extract handler information in the ConfigurationTable.
This StandaloneMmExtraGuidedSectionLib can be used by MM_STANDALONE
and MM_CORE_STANDALONE modules.
Signed-off-by: Levi Yun <yeoreum.yun@arm.com>
StandaloneMm in Arm is UP-migratable which means StandaloneMm
cannot run concurrently.
Therefore, remove per-cpu feature in StandaloneMm.
Signed-off-by: Levi Yun <yeoreum.yun@arm.com>
Arm has three types of communication buffer
- Non secure communication buffer: shared buffer with NS partition
- Secure communication buffer: shared buffer with Secure partition
- Internal Misc service buffer: For misc service
i.e. for services that do not use MmCommunication protocol,
a buffer is created and populated internally.
Since, internal Misc service buffer is allocated dynamically in
StandaloneMm there is no additional check required for the Misc
service buffer.
This patch move sanity check of communication buffer from
StandaloneMmCpu Driver to StandaloneMmEntryPoint.
Signed-off-by: Levi Yun <yeoreum.yun@arm.com>
There are 2 communication interfaces between the SPMC and StandaloneMM
1. SpmMM
2. FF-A
When SpmMM is enabled, TF-A acts as the SPMC at EL3 and the stack is setup
by TF-A for use by StandaloneMm. However, when FF-A is enabled, the SPMC
does not setup the stack for StandaloneMm and it is expected that the
StandaloneMm code will setup its own stack.
Therefore, reserve an area in the data region for use as the stack for
StandaloneMM. This stack will be used in both the scenarios described
above, i.e. when either SpmMM or FF-A is enabled.
Although the stack is reserved from the data section which is expected
to be Read-Write enabled, when TF-A maps the StandaloneMM binary into
the DRAM it configures the entire StandaloneMM memory as Read-Only.
Therefore, before the stack can be utilised, the PE Coff sections
need to be scanned to change the the stack region from Read-Only to
Read-Write.
Signed-off-by: Levi Yun <yeoreum.yun@arm.com>
On Arm all requests are handled as Asynchronous events by the Root
MMI handler.
Since the communication data is conveyed using either the NS shared
buffer or the Secure shared buffer, the Arm implementation does not
setup the mCommunicationBuffer. Therefore, the mCommunicationBuffer
being NULL is not an error case.
Moreover, the existing code switches to Asynchronous event processing
when the mCommunicationBuffer is NULL, which means that the log is an
info log rather than an error.
Therefore, change the log level from ERROR to INFO when the
mCommunicationBuffer is NULL.
Signed-off-by: Levi Yun <yeoreum.yun@arm.com>
To support the service other than Mmcommunication service,
StandaloneMm should use FF-A v1.2 or later [0].
For this, StandaloneMm needs to change:
1. apply FF-A boot protocol
- FF-A uses its own boot protocol and it can deliver phit hob.
So, StandaloneMm should understand FF-A boot protocol and
get phit hob from it to initialize.
2. Use DIRECT_REQ2 / DIRECT_RESP2
- To support the other service via FF-A protocol
than MmCommunication,
StandaloneMm should use DIRECT_REQ2 / DIRECT_RESP2.
In case of service provided with MmCommunication protocol,
register x2/x3 value is set as gEfiMmCommunication2ProtocolGuid and
register x4 value is set with MmCommunication Buffer
(ServiceTypeMmCommunication).
In case of service with each speicifiation via FF-A,
register x2/x3 value is set as each service guid
and StandaloneMmCoreEntryPoint genreates Mm communication header
with passed arguments to dispatch this service
provided by StandaloneMm.
i.e) Tpm service, Firmware update service and etc.
(ServiceTypeMisc)
Link: https://developer.arm.com/documentation/den0077/latest/ [0]
Signed-off-by: Levi Yun <yeoreum.yun@arm.com>
Add ArmFfaLib used in StandaloneMmCore/StandaloneMm Driver.
Continuous-integration-options: PatchCheck.ignore-multi-package
Signed-off-by: Levi Yun <yeoreum.yun@arm.com>
PcdFfaEnabled is no more used because ArmFfaLib could find whether FF-A
is supported dynamically.
This patch removes usage of PcdFfaEnabled.
Continuous-integration-options: PatchCheck.ignore-multi-package
Signed-off-by: Levi Yun <yeoreum.yun@arm.com>
To remove hob creation in StandaloneMm entrypoint,
TF-A should pass PHIT hob information to StandaloneMm.
When it passes PHIT hob, it passes according to
firmware handoff specification[0].
This patch applies boot protocol using transfer list with firmware
handoff specification and remove hob creation in StandaloneMm
entrypoint.
Link: https://github.com/FirmwareHandoff/firmware_handoff [0]
Signed-off-by: Levi Yun <yeoreum.yun@arm.com>
Change naming convention in ArmMmSvc.h with
MM to SPM_MM
This would make it clear to discern ABI protocol used to communicate
with secure partition.
Continuous-integration-options: PatchCheck.ignore-multi-package
Signed-off-by: Levi Yun <yeoreum.yun@arm.com>
By using transfer list passed by TF-A,
StandaloneMmCore is no more producer of HOBs, But it is consumer.
So, the Arm-specific implementation of StandaloneMmCoreHobLib
is no longer needed.
This change removes the Arm-specific HOB creation code and
integrates the necessary adjustments.
Signed-off-by: Levi Yun <yeoreum.yun@arm.com>
This patch introduces a PI_MM_CPU_DRIVER_EP protocol to handle
Mmcommunication request based on the CPU driver.
Previously the CPU driver entry point was retrieved using the
gEfiArmTfCpuDriverEntryPoint HOB.
However, this practice is incorrect as StandaloneMM must be a HOB
consumer and not a HOB producer.
Therefore, remove the CPU entry HOB gEfiArmTfCpuDriverEntryPoint,
and replace it with the CPU driver entry protocol
EDKII_PI_MM_CPU_DRIVER_EP_PROTOCOL.
The EDKII_PI_MM_CPU_DRIVER_EP_PROTOCOL installed in
StandaloneMmCpuInitialize() will be used by the code in
Arm/StandaloneMmCoreEntryPoint.
This protocol is used like below:
+=====+
|StandaloneMmCore|
+=====+
|
CEntryPoint()
===================
|
ProcessModuleEntryPointList()
|
+--> StandaloneMmMain()
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
| // Load StandaloneMmCpu driver which implements
| // CpuDriverEntryPoint used by DelegatedEventLoop().
| // and install the gEdkiiPiMmCpuDriverEpProtocolGuid.
--------------
|
... // Get CpuDriverEntryPoint implemented by
// StandaloneMmCpu driver with gEdkiiPiMmCpuDriverEpProtocolGuid
|
DelegatedEventLoop() // Handle request by delegating it to
// CpuDriverEntryPoint.
Signed-off-by: Levi Yun <yeoreum.yun@arm.com>
Communication with Stmm can be via SPM using MM or FF-A.
However, some return values differ between these
communication models.
This patch adds helper functions to covert the return
values based on the communication model.
It also fixes an issue when using the SPM using MM model,
wherein an error code value of -7 was being returned when
an unknown error occurred. The -7 value is not defined in
SPM using MM. Therefore, return an UNSUPPORTED code instead.
Signed-off-by: Levi Yun <yeoreum.yun@arm.com>
When at last hob, the FV HOB check function should
exit from the loop
Signed-off-by: Hongbin1 Zhang <hongbin1.zhang@intel.com>
Cc: Jiewen Yao <jiewen.yao@intel.com>
Cc: Ray Ni <ray.ni@intel.com>
Cc: Star Zeng <star.zeng@intel.com>
Cc: Jiaxin Wu <jiaxin.wu@intel.com>
Cc: Wei6 Xu <wei6.xu@intel.com>
Cc: Sami Mujawar <sami.mujawar@arm.com>
Cc: Ard Biesheuvel <ardb+tianocore@kernel.org>
Cc: Supreeth Venkatesh <supreeth.venkatesh@arm.com>
Today, StandaloneMmCore calls PeCoffLoaderRelocateImage() when loading
images, which calls PeCoffLoaderRelocateImageExtraAction(). On AARCH64,
this sets the image memory protections accordingly, RO + E on code
sections, RW + NX on data sections.
However, if an image fails to start (i.e. its entry point returns a
failure) StandaloneMmCore does not call the corresponding
PeCoffLoaderUnloadImage, which calls PeCoffLoaderUnloadImageExtraAction,
which on AARCH64 undoes the memory protections on the image, setting the
whole memory region back to RW + NX. The core then frees this memory
and the next allocation attempts to use it, which results in a data
abort if a read only memory region is attempted to be written to.
Theoretically, other instances of the PeCoffExtraActionLib could take
other actions and so regardless of architecture, the contract with the
PeCoffLoader should be maintained.
This patch calls PeCoffLoaderUnloadImage when an image's entry point
returns a failure, before freeing the image memory. This meets the
contract and follows the DXE core behavior.
Signed-off-by: Oliver Smith-Denny <osde@microsoft.com>
If the Dispatcher fails to allocate memory for the driver that it is
trying to load then ASSERT, else the Dispatcher silently stops loading
subsequent drivers from the FV.
Signed-off-by: Girish Mahadevan <gmahadevan@nvidia.com>
Reviewed-by: Jeff Brasen <jbrasen@nvidia.com>
Add support to dispatch multiple standalone MM FVs for StandaloneMmCore.
Set the maximum supported FV count to 2.
Signed-off-by: Wei6 Xu <wei6.xu@intel.com>
MmIpl should locate MM core FV location PPI to find current MM
FV location.
Signed-off-by: Hongbin1 Zhang <hongbin1.zhang@intel.com>
Cc: Jiewen Yao <jiewen.yao@intel.com>
Cc: Ray Ni <ray.ni@intel.com>
Cc: Star Zeng <star.zeng@intel.com>
Cc: Jiaxin Wu <jiaxin.wu@intel.com>
Cc: Wei6 Xu <wei6.xu@intel.com>
Cc: Sami Mujawar <sami.mujawar@arm.com>
Cc: Ard Biesheuvel <ardb+tianocore@kernel.org>
Cc: Supreeth Venkatesh <supreeth.venkatesh@arm.com>
Add MM core FV location PPI, it will include
MM core FV location which could be in FSP-I
or Bootloader MM FV.
Signed-off-by: Hongbin1 Zhang <hongbin1.zhang@intel.com>
Cc: Jiewen Yao <jiewen.yao@intel.com>
Cc: Ray Ni <ray.ni@intel.com>
Cc: Star Zeng <star.zeng@intel.com>
Cc: Jiaxin Wu <jiaxin.wu@intel.com>
Cc: Wei6 Xu <wei6.xu@intel.com>
Cc: Sami Mujawar <sami.mujawar@arm.com>
Cc: Ard Biesheuvel <ardb+tianocore@kernel.org>
Cc: Supreeth Venkatesh <supreeth.venkatesh@arm.com>
Skip MM FV HOB build if MM platform HOB list already has
the HOB.
Signed-off-by: Hongbin1 Zhang <hongbin1.zhang@intel.com>
Cc: Jiewen Yao <jiewen.yao@intel.com>
Cc: Ray Ni <ray.ni@intel.com>
Cc: Star Zeng <star.zeng@intel.com>
Cc: Jiaxin Wu <jiaxin.wu@intel.com>
Cc: Wei6 Xu <wei6.xu@intel.com>
Cc: Sami Mujawar <sami.mujawar@arm.com>
Cc: Ard Biesheuvel <ardb+tianocore@kernel.org>
Cc: Supreeth Venkatesh <supreeth.venkatesh@arm.com>
Remove unnecessary check in API MmIsBufferOutsideMmValid of
StandaloneMmMemLib.
The API is used to check if a input buffer is outside MMRAM and
inside a valid non-MMRAM range. Previously, the API only checks
if the input buffer is
overlapped with MMRAM range. In the last
commit, we add logic to check if the input buffer is inside valid
non-MMRAM
ranges reported by the resource HOB. Since the resource
HOB only covers valid non-MMRAM ranges, we doesn't need to check
if the input buffer is inside the MMRAM anymore.
Signed-off-by: Dun Tan <dun.tan@intel.com>
Check if the all the resource HOB in the input HOB list of
MmCore entry only covers non-Mmram ranges. The Resource HOB
is to describe the accessible non-Mmram range. All Resource
HOB should not overlap with any Mmram range.
Signed-off-by: Dun Tan <dun.tan@intel.com>
Separate a function called InitializeMmHobList() to gather
all the operations related to initializing HOB. It doesn't
change any code logic.
Signed-off-by: Dun Tan <dun.tan@intel.com>
Check if the non-MMRAM buffer is inside valid non-mmram
range in API MmIsBufferOutsideMmValid of StandaloneMmMemLib.
Previously, the API only checks if the input buffer is
overlapped with MMRAM range. Currently, in the new standalone
MM infrastructure, we limit the non-MMRAM access to the ranges
reported by the resource HOB. To meet the new design, in this
API, we cache all the memory ranges reported by the resource
HOB and check if the input buffer is inside valid non-MMRAM
ranges reported by the resource HOB.
Signed-off-by: Dun Tan <dun.tan@intel.com>
Add a internal header file for StandaloneMmMemLib.
Move some common reference and declaration into
StandaloneMmMemLibInternal.h.
Signed-off-by: Dun Tan <dun.tan@intel.com>
Remove unneeded check MmIsBufferOutsideMmValid() when
StandaloneMmCore checks if the BS data memory described
by a memory allocation HOB needs to be migrated to Mmram.
Currently, the API MmIsBufferOutsideMmValid() return TRUE
when input memory range belongs to non-Mmram memory. Now
the API will be changed in following 5 commits to return
TRUE when a memory range belongs to non-Mmram memroy and
the memory is inside a range described by resource HOB.
This may cause PF when some SMI handler access the memory
from a memory allocation HOB that is not migrated.
To solve this issue, we can directly remove the check
MmIsBufferOutsideMmValid() and always migrate the BS data
memory described by a memory allocation HOB to Mmram.
Signed-off-by: Dun Tan <dun.tan@intel.com>
Clang compile will optimize undefined behavior (UB)
like a pointer with NULL + size, so it is better to
check the pointer before using it.
Signed-off-by: Hongbin1 Zhang <hongbin1.zhang@intel.com>
Cc: Jiewen Yao <jiewen.yao@intel.com>
Cc: Ray Ni <ray.ni@intel.com>
Cc: Star Zeng <star.zeng@intel.com>
Cc: Jiaxin Wu <jiaxin.wu@intel.com>
Cc: Wei6 Xu <wei6.xu@intel.com>
Cc: Sami Mujawar <sami.mujawar@arm.com>
Cc: Ard Biesheuvel <ardb+tianocore@kernel.org>
Cc: Supreeth Venkatesh <supreeth.venkatesh@arm.com>
4-level paging supports translating 48-bit linear addresses to 52-bit
physical addresses. Since linear addresses are sign-extended,
the linear-address space of 4-level paging is: [0, 2^47-1] and
[0xffff8000_00000000, 0xffffffff_ffffffff]. So only [0, 2^47-1]
linear-address range maps to the identical physical-address range
when 5-Level paging is disabled.
Signed-off-by: Hongbin1 Zhang <hongbin1.zhang@intel.com>
Cc: Jiewen Yao <jiewen.yao@intel.com>
Cc: Ray Ni <ray.ni@intel.com>
Cc: Star Zeng <star.zeng@intel.com>
Cc: Jiaxin Wu <jiaxin.wu@intel.com>
Cc: Wei6 Xu <wei6.xu@intel.com>
Cc: Sami Mujawar <sami.mujawar@arm.com>
Cc: Ard Biesheuvel <ardb+tianocore@kernel.org>
Cc: Supreeth Venkatesh <supreeth.venkatesh@arm.com>
BFV is outside the MMRAM. Currently, StandaloneMmIplPei uses the API
MmUnblockMemoryRequest() to unblock the access for the BFV. However,
the BFV's memory might be gone after ExitBootService event. If any
access to the memory, unexpected error would happen.
To fix the above issue, StandaloneMmCore should shadow standalone BFV
into MMRAM before processing it, then free the shadowed BFV after MM
driver dispatch is done.
Cc: Ard Biesheuvel <ardb+tianocore@kernel.org>
Cc: Sami Mujawar <sami.mujawar@arm.com>
Cc: Ray Ni <ray.ni@intel.com>
Cc: Jiaxin Wu <jiaxin.wu@intel.com>
Signed-off-by: Wei6 Xu <wei6.xu@intel.com>
In current implementation of MmCommunication, caller (StandaloneMmIplPei
or MmCommunicationDxe) sets the IsCommBufferValid to TRUE and triggers
synchronous MMI, then caller resets IsCommBufferValid to FLASE after MMI
exits.
If asynchronous MMI happens before caller resets the IsCommBufferValid
to FALSE, StandaloneMmCore will mistakenly thought there is still a
synchronous MMI and then update incorrect values into ReturnStatus and
ReturnBufferSize.
To fix the above issue, StandaloneMmCore should reset IsCommBufferValid
to FALSE before MMI exits.
Cc: Ard Biesheuvel <ardb+tianocore@kernel.org>
Cc: Sami Mujawar <sami.mujawar@arm.com>
Cc: Ray Ni <ray.ni@intel.com>
Cc: Jiaxin Wu <jiaxin.wu@intel.com>
Signed-off-by: Wei6 Xu <wei6.xu@intel.com>
Makes changes to comply with alerts raised by CodeQL.
Most of the issues here fall into the following two categories:
1. Potential use of uninitialized pointer
2. Inconsistent integer width used in loop comparison
Signed-off-by: Oliver Smith-Denny <osde@linux.microsoft.com>
As per the emailed RFC in
https://edk2.groups.io/g/devel/topic/rfc_move/107675828,
this patch moves CompilerIntrinsicsLib from ArmPkg to
MdePkg as this library provides compiler intrinsics, which
are industry standard.
This aligns with the goal of integrating ArmPkg into existing
packages: https://bugzilla.tianocore.org/show_bug.cgi?id=4121.
The newly placed CompilerIntrinsicsLib is added to MdeLibs.dsc.inc
as every DSC that builds ARM/AARCH64 needs this library added. The
old location is removed from every DSC in edk2 in this commit also
to not break bisectability with minimal hoop jumping.
Continuous-integration-options: PatchCheck.ignore-multi-package
Signed-off-by: Oliver Smith-Denny <osde@linux.microsoft.com>
When CPU smm profile feature was enabled, unblocked memory should
not set logging attribute when building resource HOB.
Signed-off-by: Hongbin1 Zhang <hongbin1.zhang@intel.com>
Cc: Jiewen Yao <jiewen.yao@intel.com>
Cc: Ray Ni <ray.ni@intel.com>
Cc: Star Zeng <star.zeng@intel.com>
Cc: Jiaxin Wu <jiaxin.wu@intel.com>
Cc: Wei6 Xu <wei6.xu@intel.com>
Cc: Sami Mujawar <sami.mujawar@arm.com>
Cc: Ard Biesheuvel <ardb+tianocore@kernel.org>
Cc: Supreeth Venkatesh <supreeth.venkatesh@arm.com>
Adds an entry to the package's CI configuration file that enable policy
5 for stuart_pr_eval. With this Policy, all INFs used by the package are
extracted from the provided DSC file and compared against the list of
changed *.inf (INF) files in the PR. If there is a match, stuart_pr_eval
will specify that this package is affected by the PR and needs to be
tested.
Signed-off-by: Joey Vagedes <joey.vagedes@gmail.com>
X64 arch needs to restart the MM dispatcher once MM entry point is
registered, therefore set PcdRestartMmDispatcherOnceMmEntryRegistered
to TRUE by default for X64 only.
Cc: Ard Biesheuvel <ardb+tianocore@kernel.org>
Cc: Sami Mujawar <sami.mujawar@arm.com>
Cc: Ray Ni <ray.ni@intel.com>
Cc: Jiaxin Wu <jiaxin.wu@intel.com>
Signed-off-by: Wei6 Xu <wei6.xu@intel.com>
If a Memory Allocation Hob with EfiBootServicesData memory type is
reported into MM Hob List and it also has a non-zero GUID name, then the
HOB is used by MM driver and needs to migrate the memory into MMRAM.
Cc: Ard Biesheuvel <ardb+tianocore@kernel.org>
Cc: Sami Mujawar <sami.mujawar@arm.com>
Cc: Ray Ni <ray.ni@intel.com>
Cc: Jiaxin Wu <jiaxin.wu@intel.com>
Signed-off-by: Wei6 Xu <wei6.xu@intel.com>
The MM memory attribute table is ported from SMM Core.
The new file StandaloneMmPkg/Core/MemoryAttributesTable.c, the new code
in StandaloneMmPkg/Core/Page.c and StandaloneMmPkg/Core/Pool.c are
almost identical to MdeModulePkg/Core/PiSmmCore/MemoryAttributesTable.c,
MdeModulePkg/Core/PiSmmCore/Page.c and
MdeModulePkg/Core/PiSmmCore/Pool.c, but changing the word 'SMM' to 'MM'.
Different from SMM Core, Standalone MM Core produces MM MemoryAttributes
table at the end of MmDriverDispatchHandler() when all the drivers are
dispatched, rather than at the MmEndOfDxe event.
Then the MM CPU driver will consumes the table to set memory attribute
in page table.
Cc: Ard Biesheuvel <ardb+tianocore@kernel.org>
Cc: Sami Mujawar <sami.mujawar@arm.com>
Cc: Ray Ni <ray.ni@intel.com>
Cc: Jiaxin Wu <jiaxin.wu@intel.com>
Signed-off-by: Wei6 Xu <wei6.xu@intel.com>
When the EndOfPei event is signaled, installs the MM EndOfPei Protocol
so MM Drivers are informed that EndOfPei event is signaled.
Cc: Ard Biesheuvel <ardb+tianocore@kernel.org>
Cc: Sami Mujawar <sami.mujawar@arm.com>
Cc: Ray Ni <ray.ni@intel.com>
Cc: Jiaxin Wu <jiaxin.wu@intel.com>
Signed-off-by: Wei6 Xu <wei6.xu@intel.com>
Add the support using gEfiSmmSmramMemoryGuid to get MMRAM ranges.
If gEfiSmmSmramMemoryGuid HOB is not found, then try to get MMRAM ranges
from gEfiMmPeiMmramMemoryReserveGuid HOB.
Cc: Ard Biesheuvel <ardb+tianocore@kernel.org>
Cc: Sami Mujawar <sami.mujawar@arm.com>
Cc: Ray Ni <ray.ni@intel.com>
Cc: Jiaxin Wu <jiaxin.wu@intel.com>
Signed-off-by: Wei6 Xu <wei6.xu@intel.com>
Defer the dispatch of the remaining MM drivers once the CPU driver has
been dispatched.
In MmDispatcher, return immediately if the MM Entry Point was registered.
Then the MM IPL will reinvoke the MM Core Dispatcher. This is required
so MM Mode may be enabled as soon as all the dependent MM Drivers for MM
Mode have been dispatched.
Introduce a FeatureFlag PCD to control if MmDispatcher returns or not
when MmEntryPointPoint is registered. Default value is FALSE.
Cc: Ard Biesheuvel <ardb+tianocore@kernel.org>
Cc: Sami Mujawar <sami.mujawar@arm.com>
Cc: Ray Ni <ray.ni@intel.com>
Cc: Jiaxin Wu <jiaxin.wu@intel.com>
Signed-off-by: Wei6 Xu <wei6.xu@intel.com>
mMmramRanges and mMmramRangeCount are the global variables that are
used to cache the MMRAM Ranges info, but they are not used in MM Core.
Therefore, remove mMmramRanges and mMmramRangeCount.
Cc: Ard Biesheuvel <ardb+tianocore@kernel.org>
Cc: Sami Mujawar <sami.mujawar@arm.com>
Cc: Ray Ni <ray.ni@intel.com>
Cc: Jiaxin Wu <jiaxin.wu@intel.com>
Signed-off-by: Wei6 Xu <wei6.xu@intel.com>
MM_CORE_PRIVATE_DATA is not used as shared structures between MM IPL
and MM Core, therefore clean up definition for MM_CORE_PRIVATE_DATA.
Cc: Ard Biesheuvel <ardb+tianocore@kernel.org>
Cc: Sami Mujawar <sami.mujawar@arm.com>
Cc: Ray Ni <ray.ni@intel.com>
Cc: Jiaxin Wu <jiaxin.wu@intel.com>
Signed-off-by: Wei6 Xu <wei6.xu@intel.com>
MM_CORE_PRIVATE_DATA is not used as shared structures between MM IPL
and MM Core, therefore clean up the code related to gMmCorePrivate.
Cc: Ard Biesheuvel <ardb+tianocore@kernel.org>
Cc: Sami Mujawar <sami.mujawar@arm.com>
Cc: Ray Ni <ray.ni@intel.com>
Cc: Jiaxin Wu <jiaxin.wu@intel.com>
Signed-off-by: Wei6 Xu <wei6.xu@intel.com>
MM_CORE_PRIVATE_DATA is not used as shared structures between MM IPL
and MM Core, therefore clean up the code related to gMmCorePrivate.
Cc: Ard Biesheuvel <ardb+tianocore@kernel.org>
Cc: Sami Mujawar <sami.mujawar@arm.com>
Cc: Ray Ni <ray.ni@intel.com>
Cc: Jiaxin Wu <jiaxin.wu@intel.com>
Signed-off-by: Wei6 Xu <wei6.xu@intel.com>
MM_CORE_PRIVATE_DATA is not used as shared structures between MM IPL
and MM Core, therefore clean up the code related to gMmCorePrivate.
Cc: Ard Biesheuvel <ardb+tianocore@kernel.org>
Cc: Sami Mujawar <sami.mujawar@arm.com>
Cc: Ray Ni <ray.ni@intel.com>
Cc: Jiaxin Wu <jiaxin.wu@intel.com>
Signed-off-by: Wei6 Xu <wei6.xu@intel.com>
Get the MM Communication context from the MM Communication Buffer,
instead of the pointer inside gMmCorePrivate.
In the MmEntryPoint, check IsCommBufferValid from MM_COMM_BUFFER to
decide whether the MMI is Synchronous MMI or Asynchronous MMI. If it
is a Synchronous MMI, MM Core shadows the communication buffer into
a internal copy, then invokes the MMI handlers, lastly copies data
back to the MM Communication Buffer and set the return status.
Cc: Ard Biesheuvel <ardb+tianocore@kernel.org>
Cc: Sami Mujawar <sami.mujawar@arm.com>
Cc: Ray Ni <ray.ni@intel.com>
Cc: Jiaxin Wu <jiaxin.wu@intel.com>
Signed-off-by: Wei6 Xu <wei6.xu@intel.com>
Switch to MM HobList as soon as MM HostList is initialized to avoid
StandaloneMmCore still using the HobList which is outside of MMRAM.
Cc: Ard Biesheuvel <ardb+tianocore@kernel.org>
Cc: Sami Mujawar <sami.mujawar@arm.com>
Cc: Ray Ni <ray.ni@intel.com>
Cc: Jiaxin Wu <jiaxin.wu@intel.com>
Signed-off-by: Wei6 Xu <wei6.xu@intel.com>
Levi Yun
Hongbin1 Zhang
Oliver Smith-Denny
Girish Mahadevan
Wei6 Xu
Dun Tan
Michael Kubacki
Oliver Smith-Denny
Joey Vagedes