Commit Graph

1998 Commits

Author SHA1 Message Date
Tom Lendacky f8422f1e0b MdePkg/BaseLib: Add support for the VMGEXIT instruction
BZ: https://bugzilla.tianocore.org/show_bug.cgi?id=2198

VMGEXIT is a new instruction used for Hypervisor/Guest communication when
running as an SEV-ES guest. A VMGEXIT will cause an automatic exit (AE)
to occur, resulting in a #VMEXIT with an exit code value of 0x403.

Since SEV-ES is only supported in X64, provide the necessary X64 support
to execute the VMGEXIT instruction, which is coded as "rep vmmcall". For
IA32, since "vmmcall" is not supported in NASM 32-bit mode and VMGEXIT
should never be called, provide a stub implementation that is identical
to CpuBreakpoint().

Cc: Michael D Kinney <michael.d.kinney@intel.com>
Cc: Liming Gao <liming.gao@intel.com>
Reviewed-by: Liming Gao <liming.gao@intel.com>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com>
Regression-tested-by: Laszlo Ersek <lersek@redhat.com>
2020-08-16 16:45:42 +00:00
Tom Lendacky 9b3ca509ab MdePkg/BaseLib: Add support for the XGETBV instruction
BZ: https://bugzilla.tianocore.org/show_bug.cgi?id=2198

Under SEV-ES, a CPUID instruction requires the current value of the XCR0
register. In order to retrieve that value, the XGETBV instruction needs
to be executed.

Provide the necessary support to execute the XGETBV instruction.

Cc: Michael D Kinney <michael.d.kinney@intel.com>
Cc: Liming Gao <liming.gao@intel.com>
Reviewed-by: Liming Gao <liming.gao@intel.com>
Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com>
Regression-tested-by: Laszlo Ersek <lersek@redhat.com>
2020-08-16 16:45:42 +00:00
Abner Chang e6042aec1b BaseLib:Fix RISC-V Supervisor mode (S-Mode) trap handler reentry issue.
While RISC-V hart is trapped into S-Mode, the S-Mode interrupt
CSR (SIE) is disabled by RISC-V hart. However the (SIE) is enabled
again by RestoreTPL, this causes the second S-Mode trap is triggered
by the machine mode (M-Mode)timer interrupt redirection. The SRET
instruction clear Supervisor Previous Privilege (SPP) to zero
(User mode) in the second S-Mode interrupt according to the RISC-V
spec. Above brings hart to the user mode (U-Mode) when execute
SRET in the nested S-Mode interrupt handler because SPP is set to
User Mode in the second interrupt. Afterward, system runs in U-Mode
and any accesses to S-Mode CSR causes the invalid instruction exception.

Signed-off-by: Abner Chang <abner.chang@hpe.com>

Cc: Michael D Kinney <michael.d.kinney@intel.com>
Cc: Liming Gao <liming.gao@intel.com>
Cc: Daniel Schaefer <daniel.schaefer@hpe.com>
Cc: Leif Lindholm <leif.lindholm@linaro.org>
Signed-off-by: Abner Chang <abner.chang@hpe.com>
Acked-by: Liming Gao <liming.gao@intel.com>
2020-08-12 04:01:39 +00:00
Michael D Kinney aa1b377e71 MdePkg/BaseMemoryLibOptDxe: Apply BSD-2-Clause-Patent
Change license to BSD-2-Clause-Patent using an
SPDX-License-Identifier statement.

Cc: Liming Gao <liming.gao@intel.com>
Cc: Leif Lindholm <leif@nuviainc.com>
Cc: Ard Biesheuvel <ard.biesheuvel@arm.com>
Signed-off-by: Michael D Kinney <michael.d.kinney@intel.com>
Reviewed-by: Leif Lindholm <leif@nuviainc.com>
Acked-by: Ard Biesheuvel <ard.biesheuvel@arm.com>
2020-08-06 20:20:40 +00:00
Michael D Kinney 744ad444e5 MdePkg/Library/UnitTestHostBaseLib: Add missing services
REF: https://bugzilla.tianocore.org/show_bug.cgi?id=2862

Add ReadMmx()/WriteMmx() services
Add MemoryFence() service

Cc: Liming Gao <liming.gao@intel.com>
Cc: Sean Brogan <sean.brogan@microsoft.com>
Cc: Bret Barkelew <Bret.Barkelew@microsoft.com>
Signed-off-by: Michael D Kinney <michael.d.kinney@intel.com>
Reviewed-by: Liming Gao <liming.gao@intel.com>
2020-07-28 19:03:09 +00:00
Michael D Kinney 9a6c4ac68e MdePkg/Library/BaseStackCheckLib: Fix PCD type in INF
Update INF file to use a [Pcd] section instead of a
[FixedPcd] section.  [FixedPcd] should only be used in an
INF file if the source code looks up the PCD value using
the PcdLib FixedPcdGetxx() services.  Using [FixedPcd]
forces a platform to configure the PCD to type FixedAtBuild.
In this case, PcdDebugPropertyMask supports PCD types
FixedAtBuild and PatchableInModule.  Without this change
any platform that wants to use PcdDebugPropertyMask as
type PatchableInModule breaks the build.

Cc: Liming Gao <liming.gao@intel.com>
Signed-off-by: Michael D Kinney <michael.d.kinney@intel.com>
Reviewed-by: Liming Gao <liming.gao@intel.com>
2020-07-15 05:25:21 +00:00
Michael D Kinney 540fd45f75 MdePkg/Library/BaseLib: Add BaseLib instance for host based unit tests
REF: https://bugzilla.tianocore.org/show_bug.cgi?id=2800

Add a new version of BaseLib that is safe for use from host based
unit test applications.  Host based unit test applications may need
to provide implementations of some BaseLib functions that provide
simple emulation to exercise the code under test.  The structure
UNIT_TEST_HOST_BASE_LIB is filled in with services that provide
default emulation for BaseLib APIs that would normally generate
exceptions in a host based unit test application.  This structure
allows an individual unit test to replace the default emulation of
a BaseLib service with an alternate version that is required by a
specific unit test.  A global variable of type UNIT_TEST_HOST_BASE_LIB
is provided through the new UnitTestHostBaseLib library class.

Normally cmocka would be used to mock services the code under
test calls.  However, the BaseLib is used by the Unit Test
Framework itself, so using a mocked interface is not possible.
The use of a structure to provide hooks for unit test is not
expected to be a common feature.  It should only be required
for libraries that are used by both the Unit Test Framework and
the code under test where the code under test requires a
different behavior than the Unit Test Framework.

Cc: Liming Gao <liming.gao@intel.com>
Cc: Sean Brogan <sean.brogan@microsoft.com>
Cc: Bret Barkelew <Bret.Barkelew@microsoft.com>
Cc: Jiewen Yao <jiewen.yao@intel.com>
Signed-off-by: Michael D Kinney <michael.d.kinney@intel.com>
Reviewed-by: Liming Gao <liming.gao@intel.com>
2020-07-15 05:25:21 +00:00
Michael D Kinney d3c9e40abc MdePkg/BaseLib: Break out IA32/X64 GCC inline privileged functions
REF: https://bugzilla.tianocore.org/show_bug.cgi?id=2800

Break out the IA32/X64 GCC inline functions that can not be used
in a unit test host application into their own source file.  This
does not make any changes to the BaseLib library instance.  This
is in preparation for a new BaseLib instances that is safe to use
with host-based unit test applications.

Cc: Liming Gao <liming.gao@intel.com>
Cc: Sean Brogan <sean.brogan@microsoft.com>
Cc: Bret Barkelew <Bret.Barkelew@microsoft.com>
Cc: Jiewen Yao <jiewen.yao@intel.com>
Signed-off-by: Michael D Kinney <michael.d.kinney@intel.com>
Reviewed-by: Liming Gao <liming.gao@intel.com>
2020-07-15 05:25:21 +00:00
Michael D Kinney 0a81a98e90 MdePkg/BaseCacheMaintenanceLibNull: Add Null instance for host testing
REF: https://bugzilla.tianocore.org/show_bug.cgi?id=2799

The services in CacheMaintenanceLib usually generate exceptions in a
unit test host application.  Provide a Null instance that can be safely
used.

This Null instance can also be used as a template for implementing
new instances of CacheMaintenanceLib.

Cc: Liming Gao <liming.gao@intel.com>
Cc: Sean Brogan <sean.brogan@microsoft.com>
Cc: Bret Barkelew <Bret.Barkelew@microsoft.com>
Cc: Jiewen Yao <jiewen.yao@intel.com>
Signed-off-by: Michael D Kinney <michael.d.kinney@intel.com>
Reviewed-by: Liming Gao <liming.gao@intel.com>
2020-07-15 05:25:21 +00:00
Michael D Kinney 9af8a299ce MdePkg/BaseCpuLibNull: Add Null version of CpuLib for host testing
REF: https://bugzilla.tianocore.org/show_bug.cgi?id=2798

The services in CpuLib usually generate exceptions in a unit test
host application.  Provide a Null instance that can be safely used.

This Null instance can also be used as a template for implementing
new instances of CpuLib.

Cc: Liming Gao <liming.gao@intel.com>
Cc: Sean Brogan <sean.brogan@microsoft.com>
Cc: Bret Barkelew <Bret.Barkelew@microsoft.com>
Cc: Jiewen Yao <jiewen.yao@intel.com>
Signed-off-by: Michael D Kinney <michael.d.kinney@intel.com>
Reviewed-by: Liming Gao <liming.gao@intel.com>
Reviewed-by: Sean Brogan <sean.brogan@microsoft.com>
Reviewed-by: Liming Gao <liming.gao@intel.com>
2020-07-15 05:25:21 +00:00
Ray Ni 03013d999c MdePkg/PciSegmentInfoLib: Add missing EFIAPI to GetPciSegmentInfo()
All public APIs should have EFIAPI modifier. Somehow PciSegmentInfoLib
missed the EFIAPI modifier.
The patch updates the library header file and NULL instance in MdePkg
to add the missing EFIAPI.

Signed-off-by: Ray Ni <ray.ni@intel.com>
Cc: Michael D Kinney <michael.d.kinney@intel.com>
Reviewed-by: Liming Gao <liming.gao@intel.com>
Cc: Zhiguang Liu <zhiguang.liu@intel.com>
2020-06-24 05:46:27 +00:00
Ard Biesheuvel a2433243fb MdePkg/BasePrintLib: avoid absolute addresses for error strings
The mStatusString[] array is constructed as an array of pointer-to-char,
which means that on X64 or AARCH64, it is emitted as a single linear list
of 64-bit quantities, each containing the absolute address of one of the
string literals in memory.

This means that each string takes up 8 bytes of additional space, along
with 2 bytes of relocation data. It also means that extra work needs to
be done at runtime to process these relocations, every time a module is
loaded that incorporates this library.

So fix both issues, by splitting mStatusString into two arrays of char
arrays. The memory footprint decreases from 955 to 843 bytes, and given
that in the latter case, the overhead consists of 278 NUL characters rather
than 390 bytes worth of absolute addresses and relocation records, the size
of a compressed image is reduced even further. For example, when building
ArmVirtQemu.dsc in RELEASE mode for AARCH64 with the GCC5 profile, I get:

  Before

  FV Space Information
  FVMAIN [100%Full] 5329920 total, 5329920 used, 0 free
  FVMAIN_COMPACT [38%Full] 2093056 total, 811840 used, 1281216 free

  After

  FV Space Information
  FVMAIN [100%Full] 5321728 total, 5321728 used, 0 free
  FVMAIN_COMPACT [38%Full] 2093056 total, 809696 used, 1283360 free

So the uncompressed contents of the compressed image are 8 KB smaller,
whereas the resulting flash image (consisting of the compressed image
along with SEC, PEI_CORE and a set of PEIMs that execute in place) is
2 KB smaller.

Signed-off-by: Ard Biesheuvel <ard.biesheuvel@arm.com>
Reviewed-by: Zhiguang Liu <zhiguang.liu@intel.com>
Reviewed-by: Liming Gao <liming.gao@intel.com>
2020-06-16 09:14:17 +00:00
Vitaly Cheptsov 09fe015af9 MdePkg: Fix SafeString performing assertions on runtime checks
REF: https://bugzilla.tianocore.org/show_bug.cgi?id=2054

Runtime checks returned via status return code should not work as
assertions to permit parsing not trusted data with SafeString
interfaces.  Replace ASSERT() with a DEBUG_VERBOSE message.

Cc: Andrew Fish <afish@apple.com>
Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Cc: Bret Barkelew <bret.barkelew@microsoft.com>
Cc: Brian J. Johnson <brian.johnson@hpe.com>
Cc: Chasel Chiu <chasel.chiu@intel.com>
Cc: Jordan Justen <jordan.l.justen@intel.com>
Cc: Laszlo Ersek <lersek@redhat.com>
Cc: Leif Lindholm <leif@nuviainc.com>
Cc: Liming Gao <liming.gao@intel.com>
Cc: Marvin Häuser <mhaeuser@outlook.de>
Cc: Michael D Kinney <michael.d.kinney@intel.com>
Cc: Vincent Zimmer <vincent.zimmer@intel.com>
Cc: Zhichao Gao <zhichao.gao@intel.com>
Cc: Jiewen Yao <jiewen.yao@intel.com>
Signed-off-by: Vitaly Cheptsov <vit9696@protonmail.com>
Reviewed-by: Liming Gao <liming.gao@intel.com>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Bret Barkelew <bret.barkelew@microsoft.com>
Reviewed-by: Michael D Kinney <michael.d.kinney@intel.com>
2020-05-22 00:03:14 +00:00
Abner Chang 4e74764245 MdePkg/BaseSafeIntLib: Add RISCV64 arch for BaseSafeIntLib.
Add RISCV64 arch for BaseSafeIntLib library.

REF: https://bugzilla.tianocore.org/show_bug.cgi?id=2672

Signed-off-by: Abner Chang <abner.chang@hpe.com>
Reviewed-by: Leif Lindholm <leif@nuviainc.com>
Reviewed-by: Zhiguang Liu <zhiguang.liu@intel.com>

Cc: Michael D Kinney <michael.d.kinney@intel.com>
Cc: Liming Gao <liming.gao@intel.com>
Cc: Leif Lindholm <leif.lindholm@linaro.org>
Cc: Gilbert Chen <gilbert.chen@hpe.com>
Cc: Daniel Helmut Schaefer <daniel.schaefer@hpe.com>
2020-05-07 03:17:15 +00:00
Abner Chang 8c43227c64 MdePkg/BaseSynchronizationLib: RISC-V cache related code.
Support RISC-V cache related functions.

REF: https://bugzilla.tianocore.org/show_bug.cgi?id=2672

Signed-off-by: Abner Chang <abner.chang@hpe.com>
Co-authored-by: Gilbert Chen <gilbert.chen@hpe.com>
Reviewed-by: Leif Lindholm <leif.lindholm@linaro.org>
Reviewed-by: Zhiguang Liu <zhiguang.liu@intel.com>
Reviewed-by: Liming Gao <liming.gao@intel.com>

Cc: Michael D Kinney <michael.d.kinney@intel.com>
Cc: Liming Gao <liming.gao@intel.com>
Cc: Leif Lindholm <leif.lindholm@linaro.org>
Cc: Gilbert Chen <gilbert.chen@hpe.com>
2020-05-07 03:17:15 +00:00
Abner Chang 3fd8800954 MdePkg/BaseCpuLib: RISC-V Base CPU library
implementation.

Implement RISC-V CPU related functions in BaseCpuLib.

REF: https://bugzilla.tianocore.org/show_bug.cgi?id=2672

Signed-off-by: Abner Chang <abner.chang@hpe.com>
Co-authored-by: Gilbert Chen <gilbert.chen@hpe.com>
Reviewed-by: Leif Lindholm <leif.lindholm@linaro.org>
Reviewed-by: Zhiguang Liu <zhiguang.liu@intel.com>

Cc: Michael D Kinney <michael.d.kinney@intel.com>
Cc: Liming Gao <liming.gao@intel.com>
Cc: Leif Lindholm <leif.lindholm@linaro.org>
Cc: Gilbert Chen <gilbert.chen@hpe.com>
2020-05-07 03:17:15 +00:00
Abner Chang 54a3d5ec48 MdePkg/BasePeCoff: Add RISC-V PE/Coff related code.
Support RISC-V image relocation.

REF: https://bugzilla.tianocore.org/show_bug.cgi?id=2672

Signed-off-by: Abner Chang <abner.chang@hpe.com>
Co-authored-by: Gilbert Chen <gilbert.chen@hpe.com>
Reviewed-by: Leif Lindholm <leif.lindholm@linaro.org>
Reviewed-by: Zhiguang Liu <zhiguang.liu@intel.com>

Cc: Michael D Kinney <michael.d.kinney@intel.com>
Cc: Liming Gao <liming.gao@intel.com>
Cc: Leif Lindholm <leif.lindholm@linaro.org>
Cc: Gilbert Chen <gilbert.chen@hpe.com>
2020-05-07 03:17:15 +00:00
Abner Chang 089e9c19a8 MdePkg/BaseIoLibIntrinsic: Rename IoLibArm.c=>IoLibNoIo.c
RISC-V MMIO library instance.
IoLibArm.c in fact implements a generic Mmio-only (and ANSI
C compliant), so rename it to better reflect this.

REF: https://bugzilla.tianocore.org/show_bug.cgi?id=2672

Signed-off-by: Abner Chang <abner.chang@hpe.com>
Co-authored-by: Gilbert Chen <gilbert.chen@hpe.com>
Reviewed-by: Leif Lindholm <leif.lindholm@linaro.org>
Reviewed-by: Zhiguang Liu <zhiguang.liu@intel.com>

Cc: Michael D Kinney <michael.d.kinney@intel.com>
Cc: Liming Gao <liming.gao@intel.com>
Cc: Leif Lindholm <leif.lindholm@linaro.org>
Cc: Gilbert Chen <gilbert.chen@hpe.com>
2020-05-07 03:17:15 +00:00
Abner Chang 38e72aa877 MdePkg/BaseCacheMaintenanceLib:
RISC-V cache maintenance implementation.

Implement RISC-V cache maintenance functions in
BaseCacheMaintenanceLib.

REF: https://bugzilla.tianocore.org/show_bug.cgi?id=2672

Signed-off-by: Abner Chang <abner.chang@hpe.com>
Co-authored-by: Gilbert Chen <gilbert.chen@hpe.com>
Reviewed-by: Leif Lindholm <leif.lindholm@linaro.org>
Reviewed-by: Zhiguang Liu <zhiguang.liu@intel.com>

Cc: Michael D Kinney <michael.d.kinney@intel.com>
Cc: Liming Gao <liming.gao@intel.com>
Cc: Leif Lindholm <leif.lindholm@linaro.org>
Cc: Gilbert Chen <gilbert.chen@hpe.com>
2020-05-07 03:17:15 +00:00
Abner Chang 7601b251fd MdePkg/BaseLib: BaseLib for RISCV64 architecture
Add RISC-V RV64 BaseLib functions.

REF: https://bugzilla.tianocore.org/show_bug.cgi?id=2672

Signed-off-by: Abner Chang <abner.chang@hpe.com>
Co-authored-by: Gilbert Chen <gilbert.chen@hpe.com>
Reviewed-by: Leif Lindholm <leif.lindholm@linaro.org>
Reviewed-by: Zhiguang Liu <zhiguang.liu@intel.com>

Cc: Michael D Kinney <michael.d.kinney@intel.com>
Cc: Liming Gao <liming.gao@intel.com>
Cc: Leif Lindholm <leif.lindholm@linaro.org>
Cc: Gilbert Chen <gilbert.chen@hpe.com>
2020-05-07 03:17:15 +00:00
Zurcher, Christopher J 8c654bb3ec MdePkg/UefiScsiLib: Set FUA bit for synchronous SCSI Write operations
The FUA (Force Unit Access) bit forces data to be written directly to
disk instead of the write cache. This prevents data from being lost if a
shutdown or reset is requested immediately after a SCSI write operation.

Cc: Michael D Kinney <michael.d.kinney@intel.com>
Cc: Jian J Wang <jian.j.wang@intel.com>
Cc: Liming Gao <liming.gao@intel.com>
Cc: Zhiguang Liu <zhiguang.liu@intel.com>
Reviewed-by: Liming Gao <liming.gao@intel.com>
Reviewed-by: Zhiguang Liu <zhiguang.liu@intel.com>
Signed-off-by: Christopher J Zurcher <christopher.j.zurcher@intel.com>
2020-04-15 01:13:04 +00:00
Daniel Schaefer 9b2b0942f1 MdePkg/DxeServicesLib: Add RISC-V architecture
BZ:2562:
https://bugzilla.tianocore.org/show_bug.cgi?id=2562

Signed-off-by: Daniel Schaefer <daniel.schaefer@hpe.com>
Reviewed-by: Liming Gao <liming.gao@intel.com>

Cc: Abner Chang <abner.chang@hpe.com>
Cc: Gilbert Chen <gilbert.chen@hpe.com>
Cc: Leif Lindholm <leif@nuviainc.com>
Cc: Michael D Kinney <michael.d.kinney@intel.com>
Cc: Liming Gao <liming.gao@intel.com>
2020-04-03 17:09:12 +00:00
Michael D Kinney 02b7b861b1 MdePkg/BaseSafeIntLib: Fix VS20xx IA32 link failures
https://bugzilla.tianocore.org/show_bug.cgi?id=2525

SafeUint64Mult() looks for 64-bit overflows and performs
several 32-bit multiples with 64-bit results to check for
all possible overflow conditions.  IA32 builds using VS20xx
with optimizations enabled are producing a reference to
the _allmull intrinsic.

The fix is to use MultU64x64() instead of '*' for
these operations.  These are safe because the inputs
are guaranteed to have the upper 32-bits clear, which
means MultU64x64() can never overflow with those inputs.

Cc: Liming Gao <liming.gao@intel.com>
Cc: Sean Brogan <sean.brogan@microsoft.com>
Cc: Bret Barkelew <Bret.Barkelew@microsoft.com>
Signed-off-by: Michael D Kinney <michael.d.kinney@intel.com>
Reviewed-by: Bret Barkelew <bret.barkelew@microsoft.com>
Reviewed-by: Liming Gao <liming.gao@intel.com>
2020-02-13 01:42:50 +00:00
Antoine Coeur fae43d06dd MdePkg/Library/Smm: Fix various typos
Fix various typos in comments and documentation.

Cc: Michael D Kinney <michael.d.kinney@intel.com>
Cc: Liming Gao <liming.gao@intel.com>
Signed-off-by: Antoine Coeur <coeur@gmx.fr>
Reviewed-by: Philippe Mathieu-Daude <philmd@redhat.com>
Reviewed-by: Michael D Kinney <michael.d.kinney@intel.com>
Reviewed-by: Liming Gao <liming.gao@intel.com>
Signed-off-by: Philippe Mathieu-Daude <philmd@redhat.com>
Message-Id: <20200207010831.9046-27-philmd@redhat.com>
2020-02-10 22:30:07 +00:00
Antoine Coeur a8ecf980c0 MdePkg/Library/Pci: Fix various typos
Fix various typos in comments and documentation.

Cc: Michael D Kinney <michael.d.kinney@intel.com>
Cc: Liming Gao <liming.gao@intel.com>
Signed-off-by: Antoine Coeur <coeur@gmx.fr>
Reviewed-by: Philippe Mathieu-Daude <philmd@redhat.com>
Reviewed-by: Michael D Kinney <michael.d.kinney@intel.com>
Reviewed-by: Liming Gao <liming.gao@intel.com>
Signed-off-by: Philippe Mathieu-Daude <philmd@redhat.com>
Message-Id: <20200207010831.9046-26-philmd@redhat.com>
2020-02-10 22:30:07 +00:00
Antoine Coeur c1d8b697cf MdePkg/Library/Dxe: Fix various typos
Fix various typos in documentation, comments and strings,
and remove the duplicated 'the'.

Cc: Michael D Kinney <michael.d.kinney@intel.com>
Cc: Liming Gao <liming.gao@intel.com>
Signed-off-by: Antoine Coeur <coeur@gmx.fr>
Reviewed-by: Philippe Mathieu-Daude <philmd@redhat.com>
Reviewed-by: Michael D Kinney <michael.d.kinney@intel.com>
Reviewed-by: Liming Gao <liming.gao@intel.com>
Signed-off-by: Philippe Mathieu-Daude <philmd@redhat.com>
Message-Id: <20200207010831.9046-25-philmd@redhat.com>
2020-02-10 22:30:07 +00:00
Vitaly Cheptsov via Groups.Io df851da3ce MdePkg: Do not use CreateEventEx unless required
REF: https://bugzilla.tianocore.org/show_bug.cgi?id=2446

There are many firmwares in the wild not supporting CreateEventEx,
including devices less than 5 years old.

Signed-off-by: Vitaly Cheptsov <vit9696@protonmail.com>
Reviewed-by: Liming Gao <liming.gao@intel.com>
2020-01-10 03:25:59 +00:00
Shenglei Zhang 54a07f8fe0 MdePkg: Update the comments of IsLanguageSupported
Keep the comment style of IsLanguageSupported align with
other functions.

Cc: Michael D Kinney <michael.d.kinney@intel.com>
Cc: Liming Gao <liming.gao@intel.com>
Signed-off-by: Shenglei Zhang <shenglei.zhang@intel.com>
Reviewed-by: Liming Gao <liming.gao@intel.com>
2019-11-20 15:03:24 +00:00
Jian J Wang c9af866cdd MdePkg: add null version of RngLib
Ref: https://bugzilla.tianocore.org/show_bug.cgi?id=1871

This is null version of RngLib which should be used with modules that
inherit an (indirect) dependency on the RngLib class, but never actually
call RngLib APIs for consuming randomness.

To be more specific, if following components or functionalities are used
in a platform, the BaseRngLibNull should *not* be used. Instead, a non-Null
version of RngLib must be used (like BaseRngLib for IA32/X64, or future
DxeRngLibRngProtocol for all ARCHs).

- HddPasswordDxe.inf
- AES, TLS (TlsDxe.inf, TlsLib.inf), RSA_OAEP, RSA_PK1
- (If BaseRngLibNull interface ASSERTed at boot time)

Signed-off-by: Jian J Wang <jian.j.wang@intel.com>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Liming Gao <liming.gao@intel.com>
2019-11-14 01:32:15 +00:00
Marvin Haeuser 6407186db9 MdePkg/UefiFileHandleLib: Tolerate more Root handle FileNames
REF: https://bugzilla.tianocore.org/show_bug.cgi?id=2295

The current implementation of the FileHandleGetFileName() function
assumes that the Root directory always has the FileName '\0'.
However, the only requirement the UEFI specification defines is that
a prepended '\\' must be supported to access files and folders
relative to the Root directory.
This patch removes this assumption and supports constructing valid
paths for any value of FileName for the Root Directory.

In practice, this fixes compatibility issues with File System drivers
that report '\\' as the FileName of the Root directory, which
currently is both generating an invalid path ("\\\\") and resulting
in an EFI_NOT_FOUND result from the CurrentHandle->Open() call.

Cc: Michael D Kinney <michael.d.kinney@intel.com>
Cc: Liming Gao <liming.gao@intel.com>
Signed-off-by: Marvin Haeuser <mhaeuser@outlook.de>
Reviewed-by: Liming Gao <liming.gao@intel.com>
Reviewed-by: Zhichao Gao <zhichao.gao@intel.com>
2019-11-04 08:52:57 +08:00
Marvin Haeuser 1009b59b65 MdePkg/UefiFileHandleLib: Fix potential NULL dereference
REF: https://bugzilla.tianocore.org/show_bug.cgi?id=2293

Move the NULL check in FileHandleGetInfo() to directly after the
allocation to prevent potential NULL dereferences.

Cc: Michael D Kinney <michael.d.kinney@intel.com>
Cc: Liming Gao <liming.gao@intel.com>
Signed-off-by: Marvin Haeuser <mhaeuser@outlook.de>
Reviewed-by: Liming Gao <liming.gao@intel.com>
2019-11-04 08:52:07 +08:00
Marvin Haeuser 787c4baace MdePkg/UefiDebugLibStdErr: Pass the correct buffer size
REF: https://bugzilla.tianocore.org/show_bug.cgi?id=2302

The second argument of "UnicodeVSPrintAsciiFormat" is "BufferSize",
which takes the size of the buffer in bytes. Replace the currently
used MAX_DEBUG_MESSAGE_LENGTH usage, which is the buffer's length,
with the actual buffer size.

Cc: Michael D Kinney <michael.d.kinney@intel.com>
Cc: Liming Gao <liming.gao@intel.com>
Signed-off-by: Marvin Haeuser <mhaeuser@outlook.de>
Reviewed-by: Liming Gao <liming.gao@intel.com>
2019-11-04 08:52:04 +08:00
Marvin Haeuser 5ae6c993ab MdePkg/UefiDebugLibConOut: Pass the correct buffer size
REF: https://bugzilla.tianocore.org/show_bug.cgi?id=2302

The second argument of "UnicodeVSPrintAsciiFormat" is "BufferSize",
which takes the size of the buffer in bytes. Replace the currently
used MAX_DEBUG_MESSAGE_LENGTH usage, which is the buffer's length,
with the actual buffer size.

Cc: Michael D Kinney <michael.d.kinney@intel.com>
Cc: Liming Gao <liming.gao@intel.com>
Signed-off-by: Marvin Haeuser <mhaeuser@outlook.de>
Reviewed-by: Liming Gao <liming.gao@intel.com>
2019-11-04 08:52:01 +08:00
Liming Gao 0f59f44805 MdePkg BaseIoLibIntrinsic: Remove __inline__ attribute for IO functions
BZ: https://bugzilla.tianocore.org/show_bug.cgi?id=1603
__inline__ has no functional difference effect with the GCC48 / GCC49 / GCC5
toolchains, but it breaks the build with CLANG9. Remove __inline__.

Signed-off-by: Liming Gao <liming.gao@intel.com>
Acked-by: Laszlo Ersek <lersek@redhat.com>
Cc: Michael Kinney <michael.d.kinney@intel.com>
Reviewed-by: Philippe Mathieu-Daude <philmd@redhat.com>
Reviewed-by: Michael D Kinney <michael.d.kinney@intel.com>
2019-10-24 09:41:32 +08:00
Laszlo Ersek b1a6a0676a MdePkg/DxeServicesLib: remove bogus cast
The HandleProtocol() boot service takes an EFI_HANDLE, not an
(EFI_HANDLE*). Remove the bogus cast in the
InternalImageHandleToFvHandle() function.

This is a semantic cleanup; there is no change in behavior.

Cc: Liming Gao <liming.gao@intel.com>
Cc: Michael D Kinney <michael.d.kinney@intel.com>
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Liming Gao <liming.gao@intel.com>
Reviewed-by: Philippe Mathieu-Daude <philmd@redhat.com>
2019-10-09 09:40:10 +02:00
Zurcher, Christopher J 9b14509b16 MdePkg: Implement SCSI commands for Security Protocol In/Out
BZ: https://bugzilla.tianocore.org/show_bug.cgi?id=1546

This patch implements the Security Protocol In and Security Protocol Out
commands in UefiScsiLib to prepare support for the Storage Security
Command Protocol.

Cc: Jiewen Yao <jiewen.yao@intel.com>
Cc: Jian J Wang <jian.j.wang@intel.com>
Signed-off-by: Christopher J Zurcher <christopher.j.zurcher@intel.com>
Reviewed-by: Hao A Wu <hao.a.wu@intel.com>
Reviewed-by: Liming Gao <liming.gao@intel.com>
2019-09-29 16:43:45 +08:00
Tom Zhao ea331a5c21 MdePkg: UefiLib: Add a function to check if a language is supported
Add a function that checks if a target language is in the supported
languages list. Add some calls to this function where appropriate in
UefiLib.c

Cc: Michael D Kinney <michael.d.kinney@intel.com>
Cc: Liming Gao <liming.gao@intel.com>
Signed-off-by: Tom Zhao <tzhao@solarflare.com>
Reviewed-by: Liming Gao <liming.gao@intel.com>
2019-09-17 09:39:04 +08:00
Jayanth Raghuram 17f8c9e97d MdePkg/DxeHstiLib: Added checks to improve error handling.
REF:https://bugzilla.tianocore.org/show_bug.cgi?id=2138

Added checks for return parameters of GetSupportedTypes
function calls in InternalHstiFindAip to improve error handling.
An issue was observed on Dell Poweredge R740, where the Dell
PERC H740P controller UEFI driver returned InfoTypesBuffer = NULL,
InfoTypesBufferCount = 0 and caused an FreePool assert.

Signed-off-by: Jayanth Raghuram <Jayanth.Raghuram@Dell.com>
Cc: Wei G Liu <Wei_G_Liu@Dell.com>
Reviewed-by: Liming Gao <liming.gao@intel.com>
2019-09-02 12:17:56 +08:00
Shenglei Zhang c0e174bd5b MdePkg/BaseUefiDecompressLib: Add missing description for parameter
The description of parameter Version is missing in comments.
So add the description.

Cc: Michael D Kinney <michael.d.kinney@intel.com>
Cc: Liming Gao <liming.gao@intel.com>
Signed-off-by: Shenglei Zhang <shenglei.zhang@intel.com>
Reviewed-by: Liming Gao <liming.gao@intel.com>
2019-08-13 17:16:14 +08:00
Xu, Wei6 28bc699240 MdePkg/UefiDebugLibStdErr: Add destructor to CloseEvent
REF: https://bugzilla.tianocore.org/show_bug.cgi?id=2012

When driver is unloaded, the ExitBootSerivesEvent must be closed at
the same time. Otherwise exception will occur when ExitBootServices.

Cc: Michael D Kinney <michael.d.kinney@intel.com>
Cc: Liming Gao <liming.gao@intel.com>
Signed-off-by: Wei6 Xu <wei6.xu@intel.com>
Reviewed-by: Liming Gao <liming.gao@intel.com>
2019-07-29 11:01:43 +08:00
Xu, Wei6 0f4b77f5b2 MdePkg/UefiDebugLibDebugPortProtocol: Add destructor to CloseEvent
REF: https://bugzilla.tianocore.org/show_bug.cgi?id=2012

When driver is unloaded, the ExitBootSerivesEvent must be closed at
the same time. Otherwise exception will occur when ExitBootServices.

Cc: Michael D Kinney <michael.d.kinney@intel.com>
Cc: Liming Gao <liming.gao@intel.com>
Signed-off-by: Wei6 Xu <wei6.xu@intel.com>
Reviewed-by: Liming Gao <liming.gao@intel.com>
2019-07-29 11:01:40 +08:00
Xu, Wei6 e92bdcb3ec MdePkg/UefiDebugLibConOut: Add destructor to CloseEvent
REF: https://bugzilla.tianocore.org/show_bug.cgi?id=2012

When driver is unloaded, the ExitBootSerivesEvent must be closed at
the same time. Otherwise exception will occur when ExitBootServices.

Cc: Michael D Kinney <michael.d.kinney@intel.com>
Cc: Liming Gao <liming.gao@intel.com>
Signed-off-by: Wei6 Xu <wei6.xu@intel.com>
Reviewed-by: Liming Gao <liming.gao@intel.com>
2019-07-29 11:01:37 +08:00
Laszlo Ersek cce01f538f MdePkg/BaseLib: Base64Decode(): don't declare variables in nested blocks
The EDK II C Coding Standards Specification (v2.20) strongly discourages
variable declarations in nested block scope:

5       Source Files
5.4     Code File Structure
5.4.1   Scoping Rules
5.4.1.1 Scope

> Block (local) Scope
>
> [...]
>
> Data declarations may follow the opening brace of a compound statement,
> regardless of nesting depth, and before any code generating statements
> have been entered. Other than at the outermost block of a function body,
> this type of declaration is strongly discouraged.

Hoist such variable declarations in Base64Decode() to the outermost
function scope.

Cc: Liming Gao <liming.gao@intel.com>
Cc: Michael D Kinney <michael.d.kinney@intel.com>
Cc: Philippe Mathieu-Daudé <philmd@redhat.com>
Cc: Zhichao Gao <zhichao.gao@intel.com>
Fixes: 35e242b698
Ref: https://bugzilla.tianocore.org/show_bug.cgi?id=1980
Reported-by: Zhichao Gao <zhichao.gao@intel.com>
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Rebecca Cran <rebecca@bsdio.com>
Reviewed-by: Liming Gao <liming.gao@intel.com>
Reviewed-by: Philippe Mathieu-Daude <philmd@redhat.com>
Tested-by: Philippe Mathieu-Daude <philmd@redhat.com>
2019-07-17 16:36:57 +02:00
Laszlo Ersek 35e242b698 MdePkg/BaseLib: rewrite Base64Decode()
Rewrite Base64Decode() from scratch, due to reasons listed in the second
reference below.

Implement Base64Decode() according to the specification added in the
previous patch. The decoder scans the input buffer once, it has no inner
loop(s), and it spills each output byte as soon as the output byte is
complete.

The intent is to only strengthen the checks (sanity and input) relative to
the previous implementation, hence the MAX_ADDRESS checks are reinstated.

Cc: Liming Gao <liming.gao@intel.com>
Cc: Marvin Häuser <mhaeuser@outlook.de>
Cc: Michael D Kinney <michael.d.kinney@intel.com>
Cc: Philippe Mathieu-Daudé <philmd@redhat.com>
Cc: Zhichao Gao <zhichao.gao@intel.com>
Ref: https://bugzilla.tianocore.org/show_bug.cgi?id=1891
Ref: http://mid.mail-archive.com/c495bd0b-ea4d-7206-8a4f-a7149760d19a@redhat.com
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Liming Gao <liming.gao@intel.com>
Tested-by: Zhichao Gao <zhichao.gao@intel.com>
Reviewed-by: Philippe Mathieu-Daude <philmd@redhat.com>
[lersek@redhat.com: add last para to commit msg per talks w/ Marvin & Phil]
2019-07-16 23:24:38 +02:00
Laszlo Ersek 5d68fc6781 MdePkg/BaseLib: re-specify Base64Decode(), and add temporary stub impl
Rewrite Base64Decode() from scratch, due to reasons listed in the second
reference below.

As first step, redo the interface contract, and replace the current
implementation with a stub that asserts FALSE, then fails.

Cc: Liming Gao <liming.gao@intel.com>
Cc: Marvin Häuser <mhaeuser@outlook.de>
Cc: Michael D Kinney <michael.d.kinney@intel.com>
Cc: Philippe Mathieu-Daudé <philmd@redhat.com>
Cc: Zhichao Gao <zhichao.gao@intel.com>
Ref: https://bugzilla.tianocore.org/show_bug.cgi?id=1891
Ref: http://mid.mail-archive.com/c495bd0b-ea4d-7206-8a4f-a7149760d19a@redhat.com
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Philippe Mathieu-Daude <philmd@redhat.com>
Reviewed-by: Liming Gao <liming.gao@intel.com>
2019-07-16 23:04:15 +02:00
Dandan Bi 3f0055c8de MdePkg: Merge TianoCustomDecompress algorithm into
REF: https://bugzilla.tianocore.org/show_bug.cgi?id=1722

We plan to merge the BaseUefiTianoCustomDecompressLib
in MdeModulePkg into the BaseUefDecompressLib in MdePkg.
In order to reduce the duplicated codes and maintain
easily.
This patch adds a new fdf file in BaseUefDecompressLib
(BaseUefiTianoCustomDecompressLib.inf) to keep the same
functionality and usage model with the one in MdeModulePkg,
and then update consumer to use this new one one and
remove the one in MdeModulePkg finally.

Cc: Michael D Kinney <michael.d.kinney@intel.com>
Cc: Liming Gao <liming.gao@intel.com>
Signed-off-by: Dandan Bi <dandan.bi@intel.com>
Reviewed-by: Liming Gao <liming.gao@intel.com>
2019-05-15 20:48:26 +08:00
Michael D Kinney aec7465689 MdePkg/BaseLib: Use PcdSpeculationBarrierType
Use PcdSpeculationBarrierType in the x86 implementation
of SpeculationBarrier() to select between AsmLfence(),
AsmCpuid(), and no operation.

Cc: Liming Gao <liming.gao@intel.com>
Signed-off-by: Michael D Kinney <michael.d.kinney@intel.com>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Brian J. Johnson <brian.johnson@hpe.com>
2019-04-30 16:39:15 -07:00
Zhichao Gao ffe48f4b6c MdePkg/UefiDebugLibStdErr: make global variable static
REF: https://bugzilla.tianocore.org/show_bug.cgi?id=1740

Add a 'static' storage-class specifier to the global variables
that only used in a single file to minimize the name collisions.
This is only for the variable named 'mExitBootServicesEvent'.

Cc: Laszlo Ersek <lersek@redhat.com>
Cc: Michael D Kinney <michael.d.kinney@intel.com>
Cc: Liming Gao <liming.gao@intel.com>
Cc: Dandan Bi <dandan.bi@intel.com>
Signed-off-by: Zhichao Gao <zhichao.gao@intel.com>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Liming Gao <liming.gao@intel.com>
2019-04-28 10:54:27 +08:00
Zhichao Gao 7eef381378 MdePkg/UefiDebugLibDebugPortProtocol: make global variable static
REF: https://bugzilla.tianocore.org/show_bug.cgi?id=1740

Add a 'static' storage-class specifier to the global variables
that only used in a single file to minimize the name collisions.
This is only for the variable named 'mExitBootServicesEvent'.

Cc: Laszlo Ersek <lersek@redhat.com>
Cc: Michael D Kinney <michael.d.kinney@intel.com>
Cc: Liming Gao <liming.gao@intel.com>
Cc: Dandan Bi <dandan.bi@intel.com>
Signed-off-by: Zhichao Gao <zhichao.gao@intel.com>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Liming Gao <liming.gao@intel.com>
2019-04-28 10:54:27 +08:00
Zhichao Gao c17e4a2f53 MdePkg/UefiDebugLibConOut: make global variable static
REF: https://bugzilla.tianocore.org/show_bug.cgi?id=1740

Add a 'static' storage-class specifier to the global variables
that only used in a single file to minimize the name collisions.
This is only for the variable named 'mExitBootServicesEvent'.

Cc: Laszlo Ersek <lersek@redhat.com>
Cc: Michael D Kinney <michael.d.kinney@intel.com>
Cc: Liming Gao <liming.gao@intel.com>
Cc: Dandan Bi <dandan.bi@intel.com>
Signed-off-by: Zhichao Gao <zhichao.gao@intel.com>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Liming Gao <liming.gao@intel.com>
2019-04-28 10:54:27 +08:00