Commit Graph

2702 Commits

Author SHA1 Message Date
Michael Kubacki 6f9838f32f MdeModulePkg/Variable: Add RT GetNextVariableName() cache support
https://bugzilla.tianocore.org/show_bug.cgi?id=2220

This change implements the Runtime Service GetNextVariableName()
using the runtime cache in VariableSmmRuntimeDxe. Runtime Service
calls to GetNextVariableName() will no longer trigger a SW SMI
when gEfiMdeModulePkgTokenSpaceGuid.PcdEnableVariableRuntimeCache
is set to TRUE (default value).

Overall system performance and stability will be improved by
eliminating an SMI for these calls as they typically result in a
relatively large number of invocations to retrieve all variable
names in all variable stores present.

Cc: Dandan Bi <dandan.bi@intel.com>
Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Cc: Eric Dong <eric.dong@intel.com>
Cc: Laszlo Ersek <lersek@redhat.com>
Cc: Liming Gao <liming.gao@intel.com>
Cc: Michael D Kinney <michael.d.kinney@intel.com>
Cc: Ray Ni <ray.ni@intel.com>
Cc: Jian J Wang <jian.j.wang@intel.com>
Cc: Hao A Wu <hao.a.wu@intel.com>
Cc: Jiewen Yao <jiewen.yao@intel.com>
Signed-off-by: Michael Kubacki <michael.a.kubacki@intel.com>
Reviewed-by: Jian J Wang <jian.j.wang@intel.com>
Reviewed-by: Hao A Wu <hao.a.wu@intel.com>
2019-11-05 21:55:54 -08:00
Michael Kubacki aab3b9b9a1 MdeModulePkg/Variable: Add RT GetVariable() cache support
REF:https://bugzilla.tianocore.org/show_bug.cgi?id=2220

This change reduces SMIs for GetVariable () by maintaining a
UEFI variable cache in Runtime DXE in addition to the pre-
existing cache in SMRAM. When the Runtime Service GetVariable()
is invoked, a Runtime DXE cache is used instead of triggering an
SMI to VariableSmm. This can improve overall system performance
by servicing variable read requests without rendezvousing all
cores into SMM.

The runtime cache  can be disabled with by setting the FeaturePCD
gEfiMdeModulePkgTokenSpaceGuid.PcdEnableVariableRuntimeCache
to FALSE. If the PCD is set to FALSE, the runtime cache will not be
used and an SMI will be triggered for Runtime Service
GetVariable () and GetNextVariableName () invocations.

The following are important points regarding the behavior of the
variable drivers when the variable runtime cache is enabled.

1. All of the non-volatile storage contents are loaded into the
   cache upon driver load. This one time load operation from storage
   is preferred as opposed to building the cache on demand. An on-
   demand cache would require a fallback SMI to load data into the
   cache as variables are requested.

2. SetVariable () requests will continue to always trigger an SMI.
   This occurs regardless of whether the variable is volatile or
   non-volatile.

3. Both volatile and non-volatile variables are cached in a runtime
   buffer. As is the case in the current EDK II variable driver, they
   continue to be cached in separate buffers.

4. The cache in Runtime DXE and SMM are intended to be exact copies
   of one another. All SMM variable accesses only return data from the
   SMM cache. The runtime caches are only updated after the variable I/O
   operation is successful in SMM. The runtime caches are only updated
   from SMM.

5. Synchronization mechanisms are in place to ensure the runtime cache
   content integrity with the SMM cache. These may result in updates to
   runtime cache that are the same in content but different in offset and
   size from updates to the SMM cache.

When using SMM variables with runtime cache enabled, two caches will now
be present.
1. "Runtime Cache" - Maintained in VariableSmmRuntimeDxe. Used to service
   Runtime Services GetVariable () and GetNextVariableName () callers.
2. "SMM Cache" - Maintained in VariableSmm to service SMM GetVariable ()
   and GetNextVariableName () callers.
   a. This cache is retained so SMM modules do not operate on data outside
      SMRAM.

Because a race condition can occur if an SMI occurs during the execution
of runtime code reading from the runtime cache, a runtime cache read lock
is introduced that explicitly moves pending updates from SMM to the runtime
cache if an SMM update occurs while the runtime cache is locked. Note that
it is not expected a Runtime services call will interrupt SMM processing
since all CPU cores rendezvous in SMM.

It is possible to view UEFI variable read and write statistics by setting
the gEfiMdeModulePkgTokenSpaceGuid.PcdVariableCollectStatistics FeaturePcd
to TRUE and using the VariableInfo UEFI application in MdeModulePkg to dump
variable statistics to the console. By doing so, a user can view the number
of GetVariable () hits from the Runtime DXE variable driver (Runtime Cache
hits) and the SMM variable driver (SMM Cache hits). SMM Cache hits for
GetVariable () will occur when SMM modules invoke GetVariable ().

Cc: Dandan Bi <dandan.bi@intel.com>
Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Cc: Eric Dong <eric.dong@intel.com>
Cc: Laszlo Ersek <lersek@redhat.com>
Cc: Liming Gao <liming.gao@intel.com>
Cc: Michael D Kinney <michael.d.kinney@intel.com>
Cc: Ray Ni <ray.ni@intel.com>
Cc: Jian J Wang <jian.j.wang@intel.com>
Cc: Hao A Wu <hao.a.wu@intel.com>
Cc: Jiewen Yao <jiewen.yao@intel.com>
Signed-off-by: Michael Kubacki <michael.a.kubacki@intel.com>
Reviewed-by: Jian J Wang <jian.j.wang@intel.com>
2019-11-05 21:55:54 -08:00
Michael Kubacki 6b0d7b013e MdeModulePkg/Variable: Add a file for NV variable functions
This change adds a dedicated file for variable operations specific
to non-volatile variables. This decreases the overall length of the
relatively large Variable.c file.

Cc: Dandan Bi <dandan.bi@intel.com>
Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Cc: Eric Dong <eric.dong@intel.com>
Cc: Laszlo Ersek <lersek@redhat.com>
Cc: Liming Gao <liming.gao@intel.com>
Cc: Michael D Kinney <michael.d.kinney@intel.com>
Cc: Ray Ni <ray.ni@intel.com>
Cc: Jian J Wang <jian.j.wang@intel.com>
Cc: Hao A Wu <hao.a.wu@intel.com>
Cc: Jiewen Yao <jiewen.yao@intel.com>
Signed-off-by: Michael Kubacki <michael.a.kubacki@intel.com>
Reviewed-by: Jian J Wang <jian.j.wang@intel.com>
Reviewed-by: Hao A Wu <hao.a.wu@intel.com>
2019-11-05 21:55:54 -08:00
Michael Kubacki 044010234e MdeModulePkg/Variable: Parameterize auth status in VariableParsing
The file VariableParsing.c provides generic functionality related
to parsing variable related structures and information. In order to
calculate offsets for certain operations, the functions must know if
authenticated variables are enabled as this increases the size of
variable headers.

This change removes linking against a global variable in an external file
in favor of passing the authenticated variable status as a parameter to
the variable parsing functions.

Cc: Dandan Bi <dandan.bi@intel.com>
Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Cc: Eric Dong <eric.dong@intel.com>
Cc: Laszlo Ersek <lersek@redhat.com>
Cc: Liming Gao <liming.gao@intel.com>
Cc: Michael D Kinney <michael.d.kinney@intel.com>
Cc: Ray Ni <ray.ni@intel.com>
Cc: Jian J Wang <jian.j.wang@intel.com>
Cc: Hao A Wu <hao.a.wu@intel.com>
Cc: Jiewen Yao <jiewen.yao@intel.com>
Signed-off-by: Michael Kubacki <michael.a.kubacki@intel.com>
Reviewed-by: Jian J Wang <jian.j.wang@intel.com>
Reviewed-by: Hao A Wu <hao.a.wu@intel.com>
2019-11-05 21:55:54 -08:00
Michael Kubacki 8d53adbee9 MdeModulePkg/Variable: Parameterize VARIABLE_INFO_ENTRY buffer
UpdateVariableInfo () currently accepts parameters regarding updates
to be made to a global variable of type VARIABLE_INFO_ENTRY. This
change passes the structure by pointer to UpdateVariableInfo ()
so structures other than the fixed global variable can be updated.

Cc: Dandan Bi <dandan.bi@intel.com>
Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Cc: Eric Dong <eric.dong@intel.com>
Cc: Laszlo Ersek <lersek@redhat.com>
Cc: Liming Gao <liming.gao@intel.com>
Cc: Michael D Kinney <michael.d.kinney@intel.com>
Cc: Ray Ni <ray.ni@intel.com>
Cc: Jian J Wang <jian.j.wang@intel.com>
Cc: Hao A Wu <hao.a.wu@intel.com>
Cc: Jiewen Yao <jiewen.yao@intel.com>
Signed-off-by: Michael Kubacki <michael.a.kubacki@intel.com>
Reviewed-by: Jian J Wang <jian.j.wang@intel.com>
Reviewed-by: Hao A Wu <hao.a.wu@intel.com>
2019-11-05 21:55:54 -08:00
Michael Kubacki f8ff4cca7c MdeModulePkg/Variable: Parameterize GetNextVariableInternal () stores
The majority of logic related to GetNextVariableName () is currently
implemented in VariableServiceGetNextVariableInternal (). The list
of variable stores to search for the given variable name and variable
GUID is defined in the function body. This change adds a new parameter
so that the caller must pass in the list of variable stores to be used
in the variable search.

Cc: Dandan Bi <dandan.bi@intel.com>
Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Cc: Eric Dong <eric.dong@intel.com>
Cc: Laszlo Ersek <lersek@redhat.com>
Cc: Liming Gao <liming.gao@intel.com>
Cc: Michael D Kinney <michael.d.kinney@intel.com>
Cc: Ray Ni <ray.ni@intel.com>
Cc: Jian J Wang <jian.j.wang@intel.com>
Cc: Hao A Wu <hao.a.wu@intel.com>
Cc: Jiewen Yao <jiewen.yao@intel.com>
Signed-off-by: Michael Kubacki <michael.a.kubacki@intel.com>
Reviewed-by: Jian J Wang <jian.j.wang@intel.com>
Reviewed-by: Hao A Wu <hao.a.wu@intel.com>
2019-11-05 21:55:53 -08:00
Michael Kubacki 20a27a641b MdeModulePkg/Variable: Consolidate common parsing functions
This change moves the following functions into a dedicated file
so they may be used in other variable files as needed. These are
commonly needed for basic variable data structure parsing
operations. The functions are grouped together in VariableParsing.c
to support cohesiveness for these operations in the file.
Furthermore, it reduces the overall size of the common Variable.c
file.

 * DataSizeOfVariable ()
 * FindVariableEx ()
 * GetEndPointer ()
 * GetNextVariablePtr ()
 * GetStartPointer ()
 * GetVariableDataOffset ()
 * GetVariableDataPtr ()
 * GetVariableHeaderSize ()
 * GetVariableNamePtr ()
 * GetVariableStoreStatus ()
 * GetVendorGuidPtr ()
 * IsValidVariableHeader ()
 * NameSizeOfVariable ()
 * SetDataSizeOfVariable ()
 * SetNameSizeOfVariable ()
 * UpdateVariableInfo ()
 * VariableCompareTimeStampInternal ()
 * VariableServiceGetNextVariableInternal ()

Cc: Dandan Bi <dandan.bi@intel.com>
Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Cc: Eric Dong <eric.dong@intel.com>
Cc: Laszlo Ersek <lersek@redhat.com>
Cc: Liming Gao <liming.gao@intel.com>
Cc: Michael D Kinney <michael.d.kinney@intel.com>
Cc: Ray Ni <ray.ni@intel.com>
Cc: Jian J Wang <jian.j.wang@intel.com>
Cc: Hao A Wu <hao.a.wu@intel.com>
Cc: Jiewen Yao <jiewen.yao@intel.com>
Signed-off-by: Michael Kubacki <michael.a.kubacki@intel.com>
Reviewed-by: Jian J Wang <jian.j.wang@intel.com>
Reviewed-by: Hao A Wu <hao.a.wu@intel.com>
2019-11-05 21:55:53 -08:00
Shenglei Zhang a7d69b6aaf MdeModulePkg/EbcDebugger: Add check for Entry and RetEntry
Entry and RetEntry might be NULL before used.

Cc: Jian J Wang <jian.j.wang@intel.com>
Cc: Hao A Wu <hao.a.wu@intel.com>
Signed-off-by: Shenglei Zhang <shenglei.zhang@intel.com>
Reviewed-by: Hao A Wu <hao.a.wu@intel.com>
2019-11-06 13:26:27 +08:00
Shenglei Zhang 0c1541d457 MdeModulePkg/SetupBrowserDxe: ASSERT GetBufferForValue(&Value)
Before called by GetBufferForValue(), Value has already been called
function IsTypeInBuffer to make sure the value must be buffer type.
So GetBufferForValue can not return NULL.
This commit adds ASSERT to assume (GetBufferForValue (&Value) is not
NULL.

Cc: Jian J Wang <jian.j.wang@intel.com>
Cc: Hao A Wu <hao.a.wu@intel.com>
Signed-off-by: Shenglei Zhang <shenglei.zhang@intel.com>
Reviewed-by: Dandan Bi <dandan.bi@intel.com>
2019-11-06 13:26:21 +08:00
Shenglei Zhang 3fb7e094ef MdeModulePkg/EsrtDxe: Add check for EsrtRepository
EsrtRepository might be NULL. So return EFI_OUT_OF_RESOURCES
when it is NULL.

Cc: Hao A Wu <hao.a.wu@intel.com>
Cc: Liming Gao <liming.gao@intel.com>
Signed-off-by: Shenglei Zhang <shenglei.zhang@intel.com>
Reviewed-by: Hao A Wu <hao.a.wu@intel.com>
2019-11-06 13:26:21 +08:00
Shenglei Zhang e34022dcbe MdeModulePkg/HiiDatabaseDxe: ASSERT StringPtr
The caller of CompareAndMergeDefaultString has checked that
AltCfgResp must contain AltConfigHdr. So we add ASSERT to assume
StringPtr is not NULL.

Cc: Dandan Bi <dandan.bi@intel.com>
Cc: Eric Dong <eric.dong@intel.com>
Signed-off-by: Shenglei Zhang <shenglei.zhang@intel.com>
Reviewed-by: Dandan Bi <dandan.bi@intel.com>
2019-11-06 13:26:21 +08:00
Shenglei Zhang df50c2fcd8 MdeModulePkg/HiiDatabaseDxe: ASSERT "Private->Attribute >> 4"
Foreground and background color are saved in a single byte.
Bits 0..3 are the foreground color and bits 4..6 are the background color.
If the Private->Attribute defined correctly, (Private->Attribute >> 4)
must be less than 8.
This commit uses ASSERT to assume "Attribute >> 4" is less than 8.

Cc: Dandan Bi <dandan.bi@intel.com>
Cc: Eric Dong <eric.dong@intel.com>
Signed-off-by: Shenglei Zhang <shenglei.zhang@intel.com>
Reviewed-by: Dandan Bi <dandan.bi@intel.com>
2019-11-04 08:56:06 +08:00
Shenglei Zhang 121955fd4f MdeModulePkg/Variable/Pei: Update the condition in if statement
IndexTable->Length is used as index in array IndexTable->Index[].
So IndexTable->Length needs to be checked, which should be less than
the array size.

Cc: Hao A Wu <hao.a.wu@intel.com>
Cc: Liming Gao <liming.gao@intel.com>
Signed-off-by: Shenglei Zhang <shenglei.zhang@intel.com>
Reviewed-by: Hao A Wu <hao.a.wu@intel.com>
2019-11-04 08:54:24 +08:00
Shenglei Zhang 2b23beb043 MdeModulePkg/Oniguruma: Remove redundant IF statement
The if statement is not necessary, so keep it to edk2 style.
And this change has been merged to onigruma.
REF:https://github.com/kkos/oniguruma/pull/158

Cc: Jian J Wang <jian.j.wang@intel.com>
Cc: Hao A Wu <hao.a.wu@intel.com>
Signed-off-by: Shenglei Zhang <shenglei.zhang@intel.com>
Reviewed-by: Hao A Wu <hao.a.wu@intel.com>
2019-11-04 08:54:24 +08:00
Sunny Wang b15646484e MdeModulePkg/BdsDxe: Fix PlatformRecovery issue
For now, PlatformRecovery doesn't work if OsIndications variable
doesn't exist, which is wrong.
According to the UEFI specification section 3.4.1 and 3.4.2, if
processing of BootOrder does not result in success, the OsRecovery
and PlatformRecovery options should still be processed regardless of
the existence of the OsIndications variable.
Therefore, update the code to check PcdPlatformRecoverySupport instead
of the value of OsIndications variable (PlatformRecovery) to fix
this issue.

Cc: Jian J Wang <jian.j.wang@intel.com>
Cc: Hao Wu <hao.a.wu@intel.com>
Cc: Ray Ni <ray.ni@intel.com>
Cc: Zhichao Gao <zhichao.gao@intel.com>
Cc: Walon Li <walon.li@hpe.com>
Signed-off-by: Sunny Wang <sunnywang@hpe.com>
Reviewed-by: Ray Ni <ray.ni@intel.com>
Reviewed-by: Zhichao Gao <zhichao.gao@intel.com>
Acked-by: Jian J Wang <jian.j.wang@intel.com>
2019-10-30 13:34:07 +08:00
Liming Gao 55863be1fc MdeModulePkg RegularExpressionDxe: Disable warning for CLANG9 tool chain
BZ: https://bugzilla.tianocore.org/show_bug.cgi?id=1603

Signed-off-by: Liming Gao <liming.gao@intel.com>
Reviewed-by: Hao A Wu <hao.a.wu@intel.com>
2019-10-24 09:41:33 +08:00
Laszlo Ersek 4d05a4b709 MdeModulePkg/BdsDxe: Fix calling PlatformBootManagerWaitCallback on 0
Ref: https://bugzilla.tianocore.org/show_bug.cgi?id=2266

Commit 2de1f611be introduced a regression
whereas platforms that did set PcdPlatformBootTimeOut to 0 are now getting
an unexpected call to PlatformBootManagerWaitCallback().

This patch also ensures that, if PcdPlatformBootTimeOut is 0xFFFF we don't
call PlatformBootManagerWaitCallback() with a zero argument as doing so
would produce an unwarranted jump to full progress completion which is
likely to throw off users.

Signed-off-by: Pete Batard <pete@akeo.ie>
Reviewed-by: Liming Gao <liming.gao@intel.com>
2019-10-15 08:02:17 +08:00
Laszlo Ersek 812e3bade6 MdeModulePkg/S3SaveState: cast Position for S3BootScriptLib explicitly
The BootScriptInsert() and BootScriptLabel() functions take the in/out
parameter "Position" as (EFI_S3_BOOT_SCRIPT_POSITION*), and pass it to
S3BootScriptMoveLastOpcode() and S3BootScriptLabel(), respectively.

The callees take the in/out parameter "Position" as (VOID**). Add explicit
casts for clarity.

There is no change in functionality.

Cc: Dandan Bi <dandan.bi@intel.com>
Cc: Eric Dong <eric.dong@intel.com>
Cc: Hao A Wu <hao.a.wu@intel.com>
Cc: Jian J Wang <jian.j.wang@intel.com>
Cc: Liming Gao <liming.gao@intel.com>
Cc: Ray Ni <ray.ni@intel.com>
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Dandan Bi <dandan.bi@intel.com>
Reviewed-by: Hao A Wu <hao.a.wu@intel.com>
2019-10-09 09:40:10 +02:00
Laszlo Ersek f931984015 MdeModulePkg: stop abusing EFI_HANDLE for keystroke notify registration
EFI_REGISTER_KEYSTROKE_NOTIFY and EFI_UNREGISTER_KEYSTROKE_NOTIFY require
the notification handle to have type (VOID*). The notification handle has
nothing to do with the EFI_HANDLE type.

This change is a semantic fix; functionally, it's a no-op.

Cc: Dandan Bi <dandan.bi@intel.com>
Cc: Eric Dong <eric.dong@intel.com>
Cc: Hao A Wu <hao.a.wu@intel.com>
Cc: Jian J Wang <jian.j.wang@intel.com>
Cc: Ray Ni <ray.ni@intel.com>
Cc: Zhichao Gao <zhichao.gao@intel.com>
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Ray Ni <ray.ni@intel.com>
Reviewed-by: Dandan Bi <dandan.bi@intel.com>
Reviewed-by: Philippe Mathieu-Daude <philmd@redhat.com>
Reviewed-by: Hao A Wu <hao.a.wu@intel.com>
2019-10-09 09:40:09 +02:00
Laszlo Ersek 10eec5aa92 MdeModulePkg: stop abusing EFI_EVENT for protocol notify registration
EfiCreateProtocolNotifyEvent() takes a (VOID**) for "Registration",
similarly to gBS->RegisterProtocolNotify(). We should pass the address of
an actual pointer-to-VOID, and not the address of an EFI_EVENT. EFI_EVENT
just happens to be specified as (VOID*), and has nothing to do with the
registration.

The same applies to gMmst->MmRegisterProtocolNotify().

"mFtwRegistration", "mFvRegistration", and "mFvbRegistration" are used for
nothing else.

This change is a no-op in practice; it's a semantic improvement.

Cc: Hao A Wu <hao.a.wu@intel.com>
Cc: Jian J Wang <jian.j.wang@intel.com>
Cc: Liming Gao <liming.gao@intel.com>
Cc: Ray Ni <ray.ni@intel.com>
Cc: Zhichao Gao <zhichao.gao@intel.com>
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Ray Ni <ray.ni@intel.com>
Reviewed-by: Hao A Wu <hao.a.wu@intel.com>
Reviewed-by: Philippe Mathieu-Daude <philmd@redhat.com>
2019-10-09 09:40:09 +02:00
Pete Batard 2de1f611be MdeModulePkg/BdsDxe: Also call PlatformBootManagerWaitCallback on 0
The existing loop is set to call PlatformBootManagerWaitCallback every
second except the last one. We believe this is a mistake as it prevents
the called code from performing timeout expiration tasks such as, for
instance, ensuring that the last segment of a progress bar is displayed
before continuing (which is a current issue for the RPi3 platform).

Signed-off-by: Pete Batard <pete@akeo.ie>
Reviewed-by: Liming Gao <liming.gao@intel.com>
Reviewed-by: Ray Ni <ray.ni@intel.com>
2019-10-08 22:10:51 +08:00
Leif Lindholm ba39402f34 MdeModulePkg: strip trailing whitespace
Cc: Jian J Wang <jian.j.wang@intel.com>
Cc: Hao A Wu <hao.a.wu@intel.com>
Cc: Dandan Bi <dandan.bi@intel.com>
Cc: Liming Gao <liming.gao@intel.com>
Cc: Eric Dong <eric.dong@intel.com>
Cc: Zhichao Gao <zhichao.gao@intel.com>
Cc: Ray Ni <ray.ni@intel.com>
Signed-off-by: Leif Lindholm <leif.lindholm@linaro.org>
Reviewed-by: Hao A Wu <hao.a.wu@intel.com>
2019-10-04 11:18:32 +01:00
Gao, Zhichao e86664d2b0 MdeModulePkg/TerminalDxe: Enhance the arrow keys support
REF: https://bugzilla.tianocore.org/show_bug.cgi?id=2219

First previous patch remove the VT100Plus's arrow keys' support.
Add it back.

The arrow keys would send ESC [A through to ESC [D. Add this
support for the new introduced terminal type.

Cc: Jian J Wang <jian.j.wang@intel.com>
Cc: Hao A Wu <hao.a.wu@intel.com>
Cc: Ray Ni <ray.ni@intel.com>
Cc: Liming Gao <liming.gao@intel.com>
Signed-off-by: Zhichao Gao <zhichao.gao@intel.com>
Reviewed-by: Ray Ni <ray.ni@intel.com>
2019-09-27 15:49:29 +08:00
Dandan Bi 2184ededd3 MdeModulePkg/PlatformDriOverride: Unload image on EFI_SECURITY_VIOLATION
For the LoadImage() boot service, with EFI_SECURITY_VIOLATION retval,
the Image was loaded and an ImageHandle was created with a valid
EFI_LOADED_IMAGE_PROTOCOL, but the image can not be started right now.
This follows UEFI Spec.

But if the caller of LoadImage() doesn't have the option to defer
the execution of an image, we can not treat EFI_SECURITY_VIOLATION
like any other LoadImage() error, we should unload image for the
EFI_SECURITY_VIOLATION to avoid resource leak.

This patch is to do error handling for EFI_SECURITY_VIOLATION explicitly
for the caller in PlatformDriOverrideDxe which don't have the policy to
defer the execution of the image.

Cc: Jian J Wang <jian.j.wang@intel.com>
Cc: Hao A Wu <hao.a.wu@intel.com>
Cc: Liming Gao <liming.gao@intel.com>
Cc: Laszlo Ersek <lersek@redhat.com>
Cc: Philippe Mathieu-Daude <philmd@redhat.com>
REF: https://bugzilla.tianocore.org/show_bug.cgi?id=1992
Signed-off-by: Dandan Bi <dandan.bi@intel.com>
Reviewed-by: Hao A Wu <hao.a.wu@intel.com>
Reviewed-by: Philippe Mathieu-Daude <philmd@redhat.com>
2019-09-25 10:03:57 +08:00
Zhichao Gao 8a53ea9d9f MdeModulePkg/TerminalDxe: Extend the terminal console support types
REF: https://bugzilla.tianocore.org/show_bug.cgi?id=2186

Extend the support types of terminal console driver. New added types
are Linux, XtermR6, VT400 and SCO.

Refer to
https://www.ssh.com/ssh/putty/putty-manuals/0.68/Chapter4.html#config-funkeys

Add the missing VT100+ function keys map.

Add F1-F12 function keys map for Linux, XtermR6, VT400 and SCO.

Cc: Jian J Wang <jian.j.wang@intel.com>
Cc: Hao A Wu <hao.a.wu@intel.com>
Cc: Ray Ni <ray.ni@intel.com>
Cc: Liming Gao <liming.gao@intel.com>
Signed-off-by: Zhichao Gao <zhichao.gao@intel.com>
Reviewed-by: Ray Ni <ray.ni@intel.com>
2019-09-24 21:56:46 +08:00
Liming Gao 9790f62be1 MdeModulePkg SerialDxe.inf: Fix wrong FILE_GUID format
Fix regression issue caused by 0d85e67714

Cc: Hao A Wu <hao.a.wu@intel.com>
Cc: Ray Ni <ray.ni@intel.com>
Signed-off-by: Liming Gao <liming.gao@intel.com>
Reviewed-by: Hao A Wu <hao.a.wu@intel.com>
2019-09-17 15:10:25 +08:00
Shenglei Zhang 0d85e67714 MdeModulePkg/SerialDxe: Update the file Guid in SerialDxe.inf
FILE GUID in MdeModulePkg\Universal\SerialDxe\SerialDxe.inf is
same to the one gEdkiiSerialPortLibVendorGuid.
Its FILE GUID should be updated to another value.
https://bugzilla.tianocore.org/show_bug.cgi?id=2144

Cc: Jian J Wang <jian.j.wang@intel.com>
Cc: Hao A Wu <hao.a.wu@intel.com>
Signed-off-by: Shenglei Zhang <shenglei.zhang@intel.com>
Reviewed-by: Hao A Wu <hao.a.wu@intel.com>
2019-09-17 09:37:26 +08:00
Shenglei Zhang 61ca3b9236 MdeModulePkg: Add missing header files in INF files
The header files are used but missing in INF,which causes
generating warning message when building them.

Cc: Jian J Wang <jian.j.wang@intel.com>
Cc: Hao A Wu <hao.a.wu@intel.com>
Signed-off-by: Shenglei Zhang <shenglei.zhang@intel.com>
Reviewed-by: Hao A Wu <hao.a.wu@intel.com>
2019-08-13 17:16:14 +08:00
Liming Gao a7b54d1821 MdeModulePkg/RegularExpressionDxe: Add two missing null pointer checks
After update Oniguruma from v6.9.0 to v6.9.3, two null pointer check
should be added.
This change bases on the patch https://edk2.groups.io/g/devel/message/45183.

Cc: Jian J Wang <jian.j.wang@intel.com>
Cc: Hao A Wu <hao.a.wu@intel.com>
Signed-off-by: Liming Gao <liming.gao@intel.com>
Reviewed-by: Hao A Wu <hao.a.wu@intel.com>
2019-08-13 17:05:31 +08:00
Liming Gao b26691c471 MdeModulePkg RegularExpressionDxe: Update Oniguruma from v6.9.0 to v6.9.3
BZ: https://bugzilla.tianocore.org/show_bug.cgi?id=2066
Update Oniguruma to the latest version v6.9.3.
Oniguruma https://github.com/kkos/oniguruma
This release is the security fix release. It includes the changes:
Fixed CVE-2019-13224
Fixed CVE-2019-13225
Fixed many problems (found by libfuzzer programs)

Verify VS2015, GCC5 build.
Verify RegularExpressionProtocol GetInfo() and Match() function.

Cc: Jian J Wang <jian.j.wang@intel.com>
Cc: Hao A Wu <hao.a.wu@intel.com>
Cc: Cinnamon Shia <cinnamon.shia@hpe.com>
Signed-off-by: Liming Gao <liming.gao@intel.com>
Reviewed-by: Hao A Wu <hao.a.wu@intel.com>
2019-08-13 17:05:24 +08:00
Jin, Eric e314132fea MdeModulePkg/EsrtFmpDxe: Enhance ESRT to support multiple controllers
REF: https://bugzilla.tianocore.org/show_bug.cgi?id=1525

The patch is to merge multiple FMP instances into single ESRT entry
when they have the same GUID.

The policy to LastAttemptStatus/LastAttemptVersion of ESRT entry is:
If all the LastAttemptStatus are LAST_ATTEMPT_STATUS_SUCCESS, then
LastAttemptVersion should be the smallest of LastAttemptVersion. If
any of the LastAttemptStatus is not LAST_ATTEMPT_STATUS_SUCCESS,
then the LastAttemptVersion/LastAttemptStatus should be the values
of the first FMP instance whose LastAttemptStatus is not
LAST_ATTEMPT_STATUS_SUCCESS.

To detect possible duplicated GUID/HardwareInstance, a table of
GUID/HardwareInstance pairs from all the EFI_FIRMWARE_IMAGE_DESCRIPTORs
from all FMP instances is built. If a duplicate is found, then generate
a DEBUG_ERROR message, generate an ASSERT(), and ignore the duplicate
EFI_FIRMWARE_IMAGE_DESCRIPTOR.

Add an internal worker function called FmpGetFirmwareImageDescriptor()
that retrieves the list of EFI_FIRMWARE_IMAGE_DESCRIPTORs from a single
FMP instance and returns the descriptors in an allocated buffer. This
function is used to get the descriptors used to build the table of
unique GUID/HardwareInstance pairs.  It is then used again to generate
the ESRT Table from all the EFI_FIRMWARE_IMAGE_DESCRIPTORs from all the
FMP instances. 2 passes are performed so the total number of
descriptors is known. This allows the correct sized buffers to always
be allocated.

Cc: Sean Brogan <sean.brogan@microsoft.com>
Cc: Bret Barkelew <Bret.Barkelew@microsoft.com>
Cc: Jian J Wang <jian.j.wang@intel.com>
Signed-off-by: Michael D Kinney <michael.d.kinney@intel.com>
Signed-off-by: Eric Jin <eric.jin@intel.com>
Reviewed-by: Hao A Wu <hao.a.wu@intel.com>
2019-08-07 13:18:32 +08:00
Shenglei Zhang 93373079b5 MdeModulePkg: Fix typos and add periods
1.Update @parm to @param in function comments in Presentation.c.
2.Add missing period (.) in some function comments.

Cc: Jian J Wang <jian.j.wang@intel.com>
Cc: Hao A Wu <hao.a.wu@intel.com>
Signed-off-by: Shenglei Zhang <shenglei.zhang@intel.com>
Reviewed-by: Jian J Wang <jian.j.wang@intel.com>
Reviewed-by: Philippe Mathieu-Daude <philmd@redhat.com>
Reviewed-by: Dandan Bi <dandan.bi@intel.com>
2019-08-02 14:19:13 +08:00
GregX Yeh 034a3b4f55 MdeModulePkg/Setup: Check ConfigAccess protocol in case it's destroyed
https://bugzilla.tianocore.org/show_bug.cgi?id=1920
Check ConfigAccess protocol is available before process user input.

Signed-off-by: GregX Yeh <gregx.yeh@intel.com>
Cc: Dandan Bi <dandan.bi@intel.com>
Cc: Ray Ni <ray.ni@intel.com>
Cc: Ted Kuo <ted.kuo@intel.com>
Reviewed-by: Dandan Bi <dandan.bi@intel.com>
2019-07-10 09:57:52 +08:00
Star Zeng be0d1c1755 MdeModulePkg SmbiosMeasurementDxe: Add Type4 Voltage field to blacklist
BZ: https://bugzilla.tianocore.org/show_bug.cgi?id=1922

The Type4 Voltage field may be various.
So this patch adds it into the blacklist.

Signed-off-by: Star Zeng <star.zeng@intel.com>
Cc: Jian J Wang <jian.j.wang@intel.com>
Cc: Hao A Wu <hao.a.wu@intel.com>
Cc: Ray Ni <ray.ni@intel.com>
Cc: Donald Kuo <donald.kuo@intel.com>
Cc: Chasel Chiu <chasel.chiu@intel.com>
Reviewed-by: Chasel Chiu <chasel.chiu@intel.com>
Acked-by: Hao A Wu <hao.a.wu@intel.com>
2019-07-01 19:36:15 +08:00
Zhichao Gao 0889500ce1 MdeModulePkg/BdsDxe: Use a pcd to control PlatformRecovery
REF: https://bugzilla.tianocore.org/show_bug.cgi?id=1678

Use the PcdPlatformRecoverySupport to control the function
of platform recovery in BDS.
First, set the variable's ("OsIndicationsSupported")
EFI_OS_INDICATIONS_START_PLATFORM_RECOVERY bit base on the pcd.
It would affect the variable "OsIndications".
While the platform does not support the platform recovery,
it is inappropriate to set a PlatformRecovery#### variable. So
skip setting the variable. But it should remain the behavior of
booting from a default file path (such as \EFI\BOOT\BOOTX64.EFI)
to be compatible with the previous version UEFI spec.

Add memory check before build platform default boot option. If
fail to allocate memory for the defualt boot file path, put the
system into dead loop to indicate it is unable to boot.

Cc: Jian J Wang <jian.j.wang@intel.com>
Cc: Hao Wu <hao.a.wu@intel.com>
Cc: Ray Ni <ray.ni@intel.com>
Cc: Star Zeng <star.zeng@intel.com>
Cc: Liming Gao <liming.gao@intel.com>
Cc: Sean Brogan <sean.brogan@microsoft.com>
Cc: Michael Turner <Michael.Turner@microsoft.com>
Cc: Bret Barkelew <Bret.Barkelew@microsoft.com>
Signed-off-by: Zhichao Gao <zhichao.gao@intel.com>
Reviewed-by: Ray Ni <ray.ni@intel.com>
Reviewed-by: Hao A Wu <hao.a.wu@intel.com>
2019-07-01 14:59:20 +08:00
Gao, Zhichao 846b1652d9 MdeModulePkg/CapsulePei: Add memory pointer check
REF: https://bugzilla.tianocore.org/show_bug.cgi?id=1935

Before use the memory that is allocated through AllocateZeroPool,
we should check the memory pointer is valid to avoid using the
NULL pointer.
Add check for VariableArrayAddress that is returned from
GetScatterGatherHeadEntries. If it is NULL, directly return
the error status.

Cc: Jian J Wang <jian.j.wang@intel.com>
Cc: Hao A Wu <hao.a.wu@intel.com>
Cc: Ray Ni <ray.ni@intel.com>
Cc: Star Zeng <star.zeng@intel.com>
Signed-off-by: Zhichao Gao <zhichao.gao@intel.com>
Reviewed-by: Hao A Wu <hao.a.wu@intel.com>
2019-06-26 16:08:48 +08:00
Wei6 Xu c1227348e3 MdeModulePkg: Add CapsuleOnDiskLoadPei PEIM.
REF: https://github.com/tianocore/tianocore.github.io/wiki/
UEFI-Capsule-on-Disk-Introducation

This module provides PPI to load Capsule On Disk temp relocation file
from Root Directory file system, retrieve the capsules from the temp
file and create capsule hobs for these capsules.

Cc: Jian J Wang <jian.j.wang@intel.com>
Cc: Hao A Wu <hao.a.wu@intel.com>
Cc: Chao B Zhang <chao.b.zhang@intel.com>
Signed-off-by: Wei6 Xu <wei6.xu@intel.com>
Reviewed-by: Chao B Zhang <chao.b.zhang@intel.com>
Acked-by: Hao A Wu <hao.a.wu@intel.com>
2019-06-26 15:10:42 +08:00
Wei6 Xu 4ef0b0ac8e MdeModulePkg/CapsuleRuntimeDxe: Introduce PCD to control this feature.
REF: https://github.com/tianocore/tianocore.github.io/wiki/
UEFI-Capsule-on-Disk-Introducation

Introduce PcdCapsuleInRamSupport to turn on/off Capsule In Ram feature.
Platform could choose to drop CapsulePei/CapsuleX64 and not to support
Capsule In Ram.

Cc: Jian J Wang <jian.j.wang@intel.com>
Cc: Hao A Wu <hao.a.wu@intel.com>
Cc: Chao B Zhang <chao.b.zhang@intel.com>
Signed-off-by: Wei6 Xu <wei6.xu@intel.com>
Reviewed-by: Chao B Zhang <chao.b.zhang@intel.com>
Acked-by: Hao A Wu <hao.a.wu@intel.com>
2019-06-26 15:10:41 +08:00
Wei6 Xu 43311062a1 MdeModulePkg/BdsDxe: Support Capsule On Disk.
REF: https://github.com/tianocore/tianocore.github.io/wiki/
UEFI-Capsule-on-Disk-Introducation

Set EFI_OS_INDICATIONS_FILE_CAPSULE_DELIVERY_SUPPORTED bit of
"OsIndicationsSupported" variable to indicate the Capsule On
Disk is supported or not, according to PcdCapsuleOnDiskSupport.

Cc: Jian J Wang <jian.j.wang@intel.com>
Cc: Hao A Wu <hao.a.wu@intel.com>
Cc: Chao B Zhang <chao.b.zhang@intel.com>
Signed-off-by: Wei6 Xu <wei6.xu@intel.com>
Reviewed-by: Chao B Zhang <chao.b.zhang@intel.com>
Acked-by: Hao A Wu <hao.a.wu@intel.com>
2019-06-26 15:10:40 +08:00
Zhichao Gao be5903ad1e MdeMoudlePkg/CapsulePei: No need to remain space for null-terminate
REF: https://bugzilla.tianocore.org/show_bug.cgi?id=1853

UnicodeValueToStringS would remain two bytes for the first
parameter to set the null- terminate. So remove this change
in Mu.

Cc: Jian J Wang <jian.j.wang@intel.com>
Cc: Hao A Wu <hao.a.wu@intel.com>
Cc: Ray Ni <ray.ni@intel.com>
Cc: Star Zeng <star.zeng@intel.com>
Cc: Liming Gao <liming.gao@intel.com>
Cc: Sean Brogan <sean.brogan@microsoft.com>
Cc: Michael Turner <Michael.Turner@microsoft.com>
Cc: Bret Barkelew <Bret.Barkelew@microsoft.com>
Cc: Leif Lindholm <leif.lindholm@linaro.org>
Signed-off-by: Zhichao gao <zhichao.gao@intel.com>
Reviewed-by: Leif Lindholm <leif.lindholm@linaro.org>
Reviewed-by: Hao A Wu <hao.a.wu@intel.com>
2019-06-24 09:18:32 +08:00
Zhichao Gao d96f83de5e MdeMoudlePkg/CapsulePei: Optimize GetScatterGatherHeadEntries
REF: https://bugzilla.tianocore.org/show_bug.cgi?id=1853

Rename the MACRO from MAX_SG_LIST_HEADS to DEFAULT_SG_LIST_HEADS.
GetScatterGatherHeadEntries: use allocated buffer instead of fixed
array to handle the condition which the SG list is larger then the
array size.

Cc: Jian J Wang <jian.j.wang@intel.com>
Cc: Hao A Wu <hao.a.wu@intel.com>
Cc: Ray Ni <ray.ni@intel.com>
Cc: Star Zeng <star.zeng@intel.com>
Cc: Liming Gao <liming.gao@intel.com>
Cc: Sean Brogan <sean.brogan@microsoft.com>
Cc: Michael Turner <Michael.Turner@microsoft.com>
Cc: Bret Barkelew <Bret.Barkelew@microsoft.com>
Cc: Leif Lindholm <leif.lindholm@linaro.org>
Signed-off-by: Zhichao gao <zhichao.gao@intel.com>
Reviewed-by: Leif Lindholm <leif.lindholm@linaro.org>
Reviewed-by: Hao A Wu <hao.a.wu@intel.com>
2019-06-24 09:18:32 +08:00
Zhichao Gao f654a18b66 MdeMoudlePkg/CapsulePei: Optimize AreCapsulesStaged
REF: https://bugzilla.tianocore.org/show_bug.cgi?id=1853

AreCapsulesStaged do not need to return the status, only boolean
result is useful. So directly return a boolean value.
Cannot initialize the variable at its definition.

Cc: Jian J Wang <jian.j.wang@intel.com>
Cc: Hao A Wu <hao.a.wu@intel.com>
Cc: Ray Ni <ray.ni@intel.com>
Cc: Star Zeng <star.zeng@intel.com>
Cc: Liming Gao <liming.gao@intel.com>
Cc: Sean Brogan <sean.brogan@microsoft.com>
Cc: Michael Turner <Michael.Turner@microsoft.com>
Cc: Bret Barkelew <Bret.Barkelew@microsoft.com>
Cc: Leif Lindholm <leif.lindholm@linaro.org>
Signed-off-by: Zhichao gao <zhichao.gao@intel.com>
Reviewed-by: Leif Lindholm <leif.lindholm@linaro.org>
Reviewed-by: Hao A Wu <hao.a.wu@intel.com>
2019-06-24 09:18:32 +08:00
Zhichao Gao 0c52961538 MdeMoudlePkg/CapsulePei: Fix coding style issue
REF: https://bugzilla.tianocore.org/show_bug.cgi?id=1853

Remove API specifier AreCapsulesStaged and GetScatterGatherHeadEntries
because they are internal used.
Add space between function name and bracket.

Cc: Jian J Wang <jian.j.wang@intel.com>
Cc: Hao A Wu <hao.a.wu@intel.com>
Cc: Ray Ni <ray.ni@intel.com>
Cc: Star Zeng <star.zeng@intel.com>
Cc: Liming Gao <liming.gao@intel.com>
Cc: Sean Brogan <sean.brogan@microsoft.com>
Cc: Michael Turner <Michael.Turner@microsoft.com>
Cc: Bret Barkelew <Bret.Barkelew@microsoft.com>
Cc: Leif Lindholm <leif.lindholm@linaro.org>
Signed-off-by: Zhichao gao <zhichao.gao@intel.com>
Reviewed-by: Leif Lindholm <leif.lindholm@linaro.org>
Reviewed-by: Hao A Wu <hao.a.wu@intel.com>
2019-06-24 09:18:32 +08:00
Bret Barkelew 27052c21c4 MdeModulePkg/CapsulePei: Optimize the CapsulePei
REF: https://bugzilla.tianocore.org/show_bug.cgi?id=1853

Code change form Mu project:
https://github.com/microsoft/mu_basecore/blob/release/201903/
MdeModulePkg/Universal/CapsulePei/UefiCapsule.c#L801

Separate the capsule check function from GetCapsuleDescriptors
to AreCapsulesStaged. The original one is unclear.

Avoid querying the capsule variable twice. Use a fixed array
to cache the SG list during count the number of SG list. Then
allocate memory buffer to save the SG list from array.

Using MemoryAllocationLib instead of memory function in Pei
services.

Cc: Jian J Wang <jian.j.wang@intel.com>
Cc: Hao A Wu <hao.a.wu@intel.com>
Cc: Ray Ni <ray.ni@intel.com>
Cc: Star Zeng <star.zeng@intel.com>
Cc: Liming Gao <liming.gao@intel.com>
Cc: Sean Brogan <sean.brogan@microsoft.com>
Cc: Michael Turner <Michael.Turner@microsoft.com>
Cc: Bret Barkelew <Bret.Barkelew@microsoft.com>
Cc: Leif Lindholm <leif.lindholm@linaro.org>
Signed-off-by: Zhichao gao <zhichao.gao@intel.com>
Reviewed-by: Leif Lindholm <leif.lindholm@linaro.org>
Reviewed-by: Hao A Wu <hao.a.wu@intel.com>
2019-06-24 09:18:31 +08:00
Zhang, Chao B 57ec204e69 Revert "Capsule-on-Disk entire Patch
This reverts commit 0d4aa276d1,
                    6470a43160,
                    fd72860895,
                    7837d12498,
                    6b32af2e10,
                    8636f70b5a,
                    f17935321a
due to incorrect review process.

Cc: Wei6 Xu <wei6.xu@intel.com>
Cc: Hao A Wu <hao.a.wu@intel.com>
Signed-off-by: Zhang, Chao B <chao.b.zhang@intel.com>
Reviewed-by: Hao A Wu <hao.a.wu@intel.com>
2019-06-21 10:25:25 +08:00
Wei6 Xu f17935321a MdeModulePkg: Add CapsuleOnDiskLoadPei PEIM.
https://github.com/tianocore/tianocore.github.io/wiki/UEFI-Capsule-
on-Disk-Introducation

This module provides PPI to load Capsule On Disk temp relocation file
from Root Directory file system, retrieve the capsules from the temp
file and create capsule hobs for these capsules.

Cc: Jian J Wang <jian.j.wang@intel.com>
Cc: Hao A Wu <hao.a.wu@intel.com>
Cc: Chao B Zhang <chao.b.zhang@intel.com>
Signed-off-by: Wei6 Xu <wei6.xu@intel.com>
Reviewed-by: Hao A Wu <hao.a.wu@intel.com>
Reviewed-by: Chao B Zhang <chao.b.zhang@intel.com>
2019-06-20 19:49:31 +08:00
Wei6 Xu 7837d12498 MdeModulePkg/CapsuleRuntimeDxe: Introduce PCD to control this feature.
https://github.com/tianocore/tianocore.github.io/wiki/UEFI-Capsule-
on-Disk-Introducation

Introduce PcdCapsuleInRamSupport to turn on/off Capsule In Ram feature.
Platform could choose to drop CapsulePei/CapsuleX64 and not to support
Capsule In Ram.

Cc: Jian J Wang <jian.j.wang@intel.com>
Cc: Hao A Wu <hao.a.wu@intel.com>
Cc: Chao B Zhang <chao.b.zhang@intel.com>
Signed-off-by: Wei6 Xu <wei6.xu@intel.com>
Reviewed-by: Hao A Wu <hao.a.wu@intel.com>
Reviewed-by: Chao B Zhang <chao.b.zhang@intel.com>
2019-06-20 16:50:41 +08:00
Wei6 Xu fd72860895 MdeModulePkg/BdsDxe: Support Capsule On Disk.
https://github.com/tianocore/tianocore.github.io/wiki/UEFI-Capsule-
on-Disk-Introducation

Set EFI_OS_INDICATIONS_FILE_CAPSULE_DELIVERY_SUPPORTED bit of
"OsIndicationsSupported" variable to indicate the Capsule On
Disk is supported or not, according to PcdCapsuleOnDiskSupport.

Cc: Jian J Wang <jian.j.wang@intel.com>
Cc: Hao A Wu <hao.a.wu@intel.com>
Cc: Chao B Zhang <chao.b.zhang@intel.com>
Signed-off-by: Wei6 Xu <wei6.xu@intel.com>
Reviewed-by: Hao A Wu <hao.a.wu@intel.com>
Reviewed-by: Chao B Zhang <chao.b.zhang@intel.com>
2019-06-20 16:50:41 +08:00
Anthony PERARD cf78c9d18a MdeModulePkg: Introduce EDKII_SERIAL_PORT_LIB_VENDOR_GUID
SERIAL_DXE_FILE_GUID is used in different places, create a single
define that other can use. Also fix SerialDxe to actually use
EDKII_SERIAL_PORT_LIB_VENDOR_GUID in the device path instead of the
FILE_GUID.

Suggested-by: Laszlo Ersek <lersek@redhat.com>
Signed-off-by: Anthony PERARD <anthony.perard@citrix.com>
Message-Id: <20190606131459.1464-2-anthony.perard@citrix.com>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Hao A Wu <hao.a.wu@intel.com>
Tested-by: Laszlo Ersek <lersek@redhat.com>
Acked-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
2019-06-14 21:26:28 +02:00
Zhichao Gao 0a35997643 MdeModulePkg/GraphicsConsoleDxe: Initialize the output mode
REF: https://bugzilla.tianocore.org/show_bug.cgi?id=1412

Original logic:
Connect the graphics device -> connect it as graphics consoles
and initialize its parameters(Mode = -1, invalid) -> connect it
as console spliter and add the device to the list(use SetMode to
set mode to the user defined mode or the best mode the devices
supported if the mode is invalid. *clear the screen at this phase*)

Changed logic:
Connect the graphics device -> connect it as graphics consoles
and initialize its parameters(initialize the mode to the user
defined mode or the best mode. *directly set the mode value without
using SetMode, that would not clear the screen) -> connect it as
console spliter and add the device to the list(use SetMode to set
mode to the user defined mode or the best mode the devices supported
if the mode is invalid. *now the mode is already set, so it would
not clear the screen*).

Also remove the section of SetMode for debug version.

Impact: as the text mode may not be an invalid value, the SetMode
may have no chance to be called during reconnect the graphics device.
That means the screen may not be cleaned after finishing reconnect
operation. There is one common condition: shell command "recoonect -r".

Cc: Jian J Wang <jian.j.wang@intel.com>
Cc: Hao Wu <hao.a.wu@intel.com>
Cc: Ray Ni <ray.ni@intel.com>
Cc: Star Zeng <star.zeng@intel.com>
Cc: Liming Gao <liming.gao@intel.com>
Cc: Sean Brogan <sean.brogan@microsoft.com>
Cc: Michael Turner <Michael.Turner@microsoft.com>
Cc: Bret Barkelew <Bret.Barkelew@microsoft.com>
Cc: Laszlo Ersek <lersek@redhat.com>
Signed-off-by: Zhichao Gao <zhichao.gao@intel.com>
Acked-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Hao A Wu <hao.a.wu@intel.com>
2019-06-13 14:53:40 +08:00