Ard Biesheuvel [Thu, 20 Dec 2018 17:31:04 +0000 (18:31 +0100)]
ArmPkg/DefaultExceptionHandlerLib: use console if available
Print the minimal 'exception occurred' message to the console as well
as to the serial port if the console is available. This makes such
messages visible on systems where the console is graphical and the
serial is not connected.
Ard Biesheuvel [Thu, 20 Dec 2018 17:31:03 +0000 (18:31 +0100)]
ArmPkg/DefaultExceptionHandlerLib: drop BASE variant
Drop the redundant BASE variant, which is no longer used anywhere
now that DebugAgentSymbolsBaseLib no longer incorporates a vector
table and exception handling.
Ard Biesheuvel [Tue, 15 Jan 2019 08:15:48 +0000 (09:15 +0100)]
ArmVirtPkg: drop reference to ArmPkg/DefaultExceptionHandlerLibBase
Drop the reference to ArmPkg/DefaultExceptionHandlerLibBase, which
is no longer used anywhere now that DebugAgentSymbolsBaseLib no
longer incorporates a vector table and exception handling.
Ard Biesheuvel [Thu, 20 Dec 2018 17:31:02 +0000 (18:31 +0100)]
ArmPkg/DefaultExceptionHandlerLib: declare the permitted usage context
Declare that this library is only usable in the context of DXE core
or a DXE driver. Set the MODULE_TYPE to BASE: this only affects the
prototype of the constructor (if present) but doesn't actually
restrict the usage context otherwise.
DebugAgentSymbolsBaseLib is an optional library that is in charge
of extracting debug headers from SEC and PEI_CORE images in memory
so the filename and the offset in memory can be reported via the
UART, allowing a developer to load debugging symbols into his
debugger.
Interestingly enough, DebugAgentSymbolsBaseLib is also in charge of
exception handling before this duty is taken over by either the PEI
core, or the CPU DXE driver when running under PrePi.
Since exceptions are not actually handled at all on AArch64, and simply
routed to the DefaultExceptionHandlerLib (for which a special version
has been created to be usable this early), let's get rid of this
dubious functionality altogether.
Ard Biesheuvel [Mon, 14 Jan 2019 12:19:08 +0000 (13:19 +0100)]
MdeModulePkg/MdeModulePkg.dsc: add MM_STANDALONE FTW and variable modules
For build testing coverage, add the newly introduced MM_STANDALONE
versions of the fault tolerant write (FTW) and variable runtime
driver to MdeModulePkg.dsc. Note that the resulting binaries will
not be able to run, since they rely on dummy implementations of
MemoryAllocationLib and HobLib.
Contributed-under: TianoCore Contribution Agreement 1.1 Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Reviewed-by: Jian J Wang <jian.j.wang@intel.com> Reviewed-by: Star Zeng <star.zeng@intel.com>.
Ard Biesheuvel [Mon, 14 Jan 2019 12:16:23 +0000 (13:16 +0100)]
MdeModulePkg/MdeModulePkg/dsc: move DxeDebugSupportDxe to x86 only section
MdeModulePkg/Universal/DebugSupportDxe/DebugSupportDxe.inf does not
build for AARCH64 since it does not provide the needed PlDebugSupport.h
header. So move the module to a x86 only section.
Contributed-under: TianoCore Contribution Agreement 1.1 Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Reviewed-by: Jian J Wang <jian.j.wang@intel.com> Reviewed-by: Star Zeng <star.zeng@intel.com>.
Ard Biesheuvel [Mon, 14 Jan 2019 12:11:35 +0000 (13:11 +0100)]
MdeModulePkg: implement NULL instance of MemoryAllocationLib library class
In order to permit MM_STANDALONE modules to be built without relying
on StandaloneMmPkg, provide a BASE type NULL implementation of
MemoryAllocationLib.
Contributed-under: TianoCore Contribution Agreement 1.1 Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Reviewed-by: Jian J Wang <jian.j.wang@intel.com> Reviewed-by: Star Zeng <star.zeng@intel.com>.
Ard Biesheuvel [Mon, 14 Jan 2019 12:06:01 +0000 (13:06 +0100)]
MdePkg: add MM_STANDALONE implementation of MmServicesTableLib
The newly introduced generic MmServicesTableLib can be implemented
for traditional SMM (as we did already), but MM_STANDALONE drivers
require an implementation that is based on standalone MM.
Ard Biesheuvel [Thu, 3 Jan 2019 18:28:24 +0000 (19:28 +0100)]
MdeModulePkg/VariableRuntimeDxe: factor out boot service accesses
In preparation of providing a standalone MM based variable runtime
driver, move the existing SMM driver to the new MM services table,
and factor out some pieces that are specific to the traditional
driver, mainly related to the use of UEFI boot services, which are
not accessible to standalone MM drivers.
Ard Biesheuvel [Thu, 3 Jan 2019 18:28:22 +0000 (19:28 +0100)]
MdeModulePkg/FaultTolerantWriteDxe: factor out boot service accesses
In preparation of providing a standalone MM based FTW driver, move
the existing SMM driver to the new MM services table, and factor out
some pieces that are specific to the traditional driver, mainly
related to the use of UEFI boot services, which are not accessible
to standalone MM drivers.
The SMM based FTW and variable drivers are going to depend on
MmServicesTableLib after a subsequent patch, so add a resolution
for it to various Vlv2TbltDevicePkg .dsc files.
Contributed-under: TianoCore Contribution Agreement 1.1 Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Reviewed-by: Michael D Kinney <michael.d.kinney@intel.com>
The SMM based FTW and variable drivers are going to depend on
MmServicesTableLib after a subsequent patch, so add a resolution
for it to various QuarkPlatformPkg .dsc files.
Ard Biesheuvel [Wed, 9 Jan 2019 15:03:03 +0000 (16:03 +0100)]
OvmfPkg: add MmServicesTableLib resolution
The SMM based FTW and variable drivers are going to depend on
MmServicesTableLib after a subsequent patch, so add a resolution
for it to various OvmfPkg .dsc files.
The SMM based FTW and variable drivers are going to depend on
MmServicesTableLib after a subsequent patch, so add a resolution
for it to MdeModulePkg.dsc.
Contributed-under: TianoCore Contribution Agreement 1.1 Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Reviewed-by: Jian J Wang <jian.j.wang@intel.com> Reviewed-by: Star Zeng <star.zeng@intel.com>
V2:
(1) Add NULL pointer check for the input parameters
(2) Add check for the "Adjust" value before applying fix ups.
In function PeCoffLoaderRelocateImageForRuntime, it doesn't
do much check when do relocation. For API level consideration,
it's not safe enough.
So this patch is to replace the same code logic with function
PeCoffLoaderImageAddress which will cover more validation.
Cc: Michael D Kinney <michael.d.kinney@intel.com> Cc: Liming Gao <liming.gao@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.1 Signed-off-by: Dandan Bi <dandan.bi@intel.com> Reviewed-by: Liming Gao <liming.gao@intel.com>
Liming Gao [Wed, 16 Jan 2019 06:43:57 +0000 (14:43 +0800)]
BaseTools VolInfo: Fix XCODE5 build issue
XCODE5 reports warning "equality comparison with extraneous parentheses".
Remove extraneous parentheses around the comparison to silence this warning.
This issue is caused by commit 8daa4278e80c70e6caabc525cd122744488253f5.
Contributed-under: TianoCore Contribution Agreement 1.1 Signed-off-by: Liming Gao <liming.gao@intel.com> Cc: Feng Bob C <bob.c.feng@intel.com> Reviewed-by: Yonghong Zhu <yonghong.zhu@intel.com>
Liming Gao [Mon, 14 Jan 2019 13:50:11 +0000 (21:50 +0800)]
BaseTools GenFw: Fix XCODE5 build issue
Warning message is that "equality comparison with extraneous parentheses"
Remove extraneous parentheses around the comparison to silence this warning.
This issue is caused by commit 8daa4278e80c70e6caabc525cd122744488253f5.
Contributed-under: TianoCore Contribution Agreement 1.1 Signed-off-by: Liming Gao <liming.gao@intel.com> Cc: Feng Bob C <bob.c.feng@intel.com> Reviewed-by: Feng Bob C <bob.c.feng@intel.com>
In AcquireSpinLock function, it may call GetPerformanceCounter which
final calls PeiService table. This code may also been used by AP but
AP should not calls PeiService. This patch update code to avoid use
AcquireSpinLock function.
In above code, Facs->OspmFlags should be used instead.
EFI_ACPI_4_0_OSPM_64BIT_WAKE__F is a bit in OSPM Enabled Firmware
Control Structure Flags field, not in Firmware Control Structure
Feature Flags.
In above code, Facs->OspmFlags should be used instead.
EFI_ACPI_4_0_OSPM_64BIT_WAKE__F is a bit in OSPM Enabled Firmware
Control Structure Flags field, not in Firmware Control Structure
Feature Flags.
Ard Biesheuvel [Mon, 7 Jan 2019 07:15:00 +0000 (08:15 +0100)]
ArmPkg/ArmMmuLib AARCH64: fix out of bounds access
Take care not to dereference BlockEntry if it may be pointing past
the end of the page table we are manipulating. It is only a read,
and thus harmless, but HeapGuard triggers on it so let's fix it.
Ard Biesheuvel [Mon, 7 Jan 2019 06:56:49 +0000 (07:56 +0100)]
ArmPkg/ArmMmuLib ARM: disregard high memory when setting permissions
Ignore calls to ArmSetMemoryAttributes () when the region described
is outside of the 32-bit addressable range. This memory is not
mapped in the first place, and the current code does not deal with
the high bits correctly, resulting in hangs.
Ard Biesheuvel [Mon, 14 Jan 2019 14:04:49 +0000 (15:04 +0100)]
BaseTools/tools_def GCC5: disable LTO for ASLC invocations
GCC for 32-bit ARM chokes on .aslc files when running with LTO
enabled. Since LTO has no benefit whatsoever here, just disable
it globally for GCC5 and up when building .aslc files.
Ard Biesheuvel [Thu, 3 Jan 2019 18:28:21 +0000 (19:28 +0100)]
MdePkg: implement MmServicesTableLib based on traditional SMM
The definitions of the rebranded MM protocol stack were chosen such
that the existing SMM based core drivers can be reused. So let's
implement MmServicesTableLib based on gEfiMmBaseProtocolGuid, which
is simply gEfiSmmBase2ProtocolGuid under the hood.
SMM has been rebranded as MM, and can be implemented in traditional
mode or standalone mode, using the same prototype for the services
table. Expose this table via MmServicesTableLib, permitting the
respective implementations to expose a traditional or standalone
version.
https://bugzilla.tianocore.org/show_bug.cgi?id=1449
This patch enable build tools to recognize that
when two given files have the same GUID, file path and ARCH in Dsc,
The later one's definition will be used.
Eric Dong [Fri, 4 Jan 2019 05:37:29 +0000 (13:37 +0800)]
UefiCpuPkg/RegisterCpuFeaturesLib: Avoid AP calls PeiService.
V3:
Define union to specify the ppi or protocol.
V2:
1. Initialize CpuFeaturesData->MpService in CpuInitDataInitialize
and make this function been called at the begin of the
initialization.
2. let all other functions use CpuFeaturesData->MpService install
of locate the protocol itself.
V1:
GetProcessorIndex function calls GetMpPpi to get the MP Ppi.
Ap will calls GetProcessorIndex function which final let AP calls
PeiService.
This patch avoid GetProcessorIndex call PeiService.
1. UserIdentifyManagerDxe is used to provide UserManagerProtocol.
2. UserProfileManagerDxe provides UI setting
3. PwdCredentialProviderDxe & UsbCredentialProviderDxe are implementation
examples.
Remove above features because of no platform use it.
Cc: Zhang Chao B <chao.b.zhang@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.1 Signed-off-by: Chen A Chen <chen.a.chen@intel.com> Reviewed-by: Zhang Chao B <chao.b.zhang@intel.com>
Ard Biesheuvel [Fri, 4 Jan 2019 18:04:32 +0000 (19:04 +0100)]
ArmPkg/ArmMmuLib ARM: fix thinko in second level page table handling
PopulateLevel2PageTable () is invoked for [parts of] mappings that
start or end on a non-1 MB aligned address (or both). The size of
the mapping depends on both the start address modulo 1 MB and the
length of the mapping, but the logic that calculates this size is
flawed: subtracting 'start address modulo 1 MB' could result in a
negative value for the remaining length, which is obviously wrong.
So instead, take either RemainLength, or the rest of the 1 MB
block, whichever is smaller.
Ard Biesheuvel [Fri, 4 Jan 2019 18:04:31 +0000 (19:04 +0100)]
ArmPkg/ArmMmuLib ARM: add missing support for non-shareable cached mappings
Commit 829633e3a82 ("ArmPkg/ArmMmuLib: Add new attribute
WRITE_BACK_NONSHAREABLE") introduced support for non-shareable
cached mappings to the AArch64 version of ArmMmuLib, but the ARM
version was left behind, so fix that.
Feng, Bob C [Wed, 2 Jan 2019 08:09:46 +0000 (16:09 +0800)]
BaseTools: Report Error if use SET in Dsc
Build tool do not support SET syntax in DSC.
If the SET statement is used in DSC, build tool just ignore it.
That behavior confused some users that
they think SET statement works in DSC like in FDF.
To avoid such confusion, build tool report ERROR
if there is "SET" statement in Dsc file.
Current logic of shell tftp download was writing file after tftp
download finished, when the file is large, it looks like the shell
tftp command hanged after download was finished. To improve
end-user experience, the solution is using split file writing
instead.
This patch update the code to open and close file inside
DownloadFile(), and save each packet to file within callback
function CheckPacket().
Since AllocatePage() is no-longer needed, This patch can also
remove the memory limitation. The download file can be larger
than system free memory now.
Ashish Singhal [Wed, 9 Jan 2019 20:58:34 +0000 (04:58 +0800)]
MdePkg/UefiLib: Abstract driver model protocol uninstallation
Provided functions in UEFILib that abstract driver model protocol
uninstallation. This helps drivers to install and uninstall protocols
using a library to keep things seemless.
Carsey, Jaben [Wed, 9 Jan 2019 19:00:41 +0000 (03:00 +0800)]
BaseTools: fix imports
1 - Some of these imports are cascaded from another file. Import them locally.
2 - Some of these imports are not used. Remove them.
3 - Some of these were missing the namespace used to import them.
These changes facilitate optimization of BaseTools:
https://bugzilla.tianocore.org/show_bug.cgi?id=42
if (Attributes) {
if ((Attributes & (~(DEV_SUPPORTED_ATTRIBUTES))) != 0) {
return EFI_UNSUPPORTED;
}
}
In above code block,
"If ((Attributes & (~(DEV_SUPPORTED_ATTRIBUTES))) != 0)" is TRUE,
the Attributes must be not 0. So we can remove the redundant
check "if (Attributes)".
Cc: Vladimir Olovyannikov <vladimir.olovyannikov@broadcom.com> Cc: Jian J Wang <jian.j.wang@intel.com> Cc: Hao Wu <hao.a.wu@intel.com> Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Contributed-under: TianoCore Contribution Agreement 1.1 Signed-off-by: Dandan Bi <dandan.bi@intel.com> Reviewed-by: Star Zeng <star.zeng@intel.com>
When an integer constant specified in the .vfr file is
too large for the varstore field it is being used with,
the VFR compiler reports an overflow warning like this:
Test.vfr(693): WARNING: Overflow: Value 1024 is too large to
store in a UINT8
: String to UINT* Overflow
Since Warning does not break the build process,
and it is easy to miss it.
This patch is to update the code to report error and break
the build if meet this kind of issue.
Chu, Maggie [Tue, 25 Dec 2018 05:54:25 +0000 (13:54 +0800)]
SecurityPkg: Incorrect warning message for Opal admin revert action
https://bugzilla.tianocore.org/show_bug.cgi?id=1421
"revert action will take long time..." warning should be removed
from pop up message when keep user data selected.
Laszlo Ersek [Wed, 2 Jan 2019 19:58:10 +0000 (20:58 +0100)]
ArmPkg/ArmSoftFloatLib: drop build flags specific to GCC46/GCC47
We've removed BaseTools support for GCC44..GCC47. Drop
ArmPkg/ArmSoftFloatLib build flags that are specific to any of those gcc
versions. (See also commit 01627dba0911, "ArmPkg/ArmSoftfloatLib: restrict
-fno-tree-vrp option to GCC46 and GCC47", 2015-12-15).
No GCC44..GCC47 references remain under ArmPkg after this patch.
Laszlo Ersek [Thu, 3 Jan 2019 00:58:22 +0000 (01:58 +0100)]
BaseTools/tools_def.template: remove comment about GCC44 + LzmaF86Compress
"tools_def.template" currently suggests, in the documentation of the
LzmaF86Compress utility, that said tool is generally unhelpful on binaries
built with the GCC44 toolchain, relative to LzmaCompress.
This statement doesn't apply to the GCC48 toolchain. I compressed 126
NOOPT_GCC48/IA32 unique EFI modules (built with gcc-4.8.5, as part of
OVMF) with both LzmaCompress and LzmaF86Compress. I repeated the same for
117 NOOPT_GCC48/X64 unique EFI modules. On average, the LzmaF86Compress
output size was 92.4% of the LzmaCompress output size in the IA32 case
(best relative compression: 86.01%, poorest relative compression: 97.47%
-- still a win). In the X64 case, the LzmaF86Compress output size was
92.95% of the LzmaCompress output size, on avarege (best relative
compression: 87.69%, poorest relative compression: 97.65% -- again, still
a win).
Given the consistent improvement from LzmaCompress to LzmaF86Compress,
remove the statement (rather than updating it to GCC48).
Remove the "leaf" definitions for GCC44. These definitions are never
referenced in "tools_def.template", so their removal can't break other
definitions. Instead, their erasure turns other definitions into leaves
(subject to further removal).
Remove the "leaf" definitions for GCC45. These definitions are never
referenced in "tools_def.template" (they are the last GCC45 mentions in
the file), so their removal can't break other definitions. Instead, their
erasure turns other definitions into leaves (subject to further removal).
Remove the "leaf" definitions for GCC46. These definitions are never
referenced in "tools_def.template" (they are the last GCC46 mentions in
the file), so their removal can't break other definitions. Instead, their
erasure turns other definitions into leaves (subject to further removal).
Remove the "leaf" definitions for GCC47. These definitions are never
referenced in "tools_def.template" (they are the last GCC47 mentions in
the file), so their removal can't break other definitions. Instead, their
erasure turns other definitions into leaves (subject to further removal).
DLINK_COMMON definitions are not consumed by "build_rule.template";
instead, DLINK_COMMON definitions (internal to "tools_def.template") were
invented for sharing options between ASLDLINK_FLAGS and DLINK_FLAGS.
However, this intent doesn't actually apply to
GCC48_IA32_X64_DLINK_COMMON: it is never consumed. Furthermore, the
GCC45..GCC47 instances of IA32_X64_DLINK_COMMON too lead up to
GCC48_IA32_X64_DLINK_COMMON only -- they form a dead-end. Remove them
altogether, in order to simplify the subsequent patches.
Ard Biesheuvel [Sat, 8 Dec 2018 09:32:42 +0000 (10:32 +0100)]
BaseTools/Conf/tools_def.template: drop ARM/AARCH support from GCC46/GCC47
This drops ARM and AARCH64 support from the GCC46 and GCC47 toolchain
definitions, which are on the list to be removed, along with VS2003,
VS2005, VS2008, VS2010, DDK3790, UNIXGCC, GCC44, GCC45, ELFGCC, CYGGCC,
ICC, ICC11 and MYTOOLS.
Since GCC46 and GCC47 are the only ones on that list that support ARM
and/or AARCH64, let's give Liming a hand and cover the ARM side of
things first, so that everything that remains to be removed is x86
only.
Laszlo Ersek [Wed, 2 Jan 2019 19:49:41 +0000 (20:49 +0100)]
Vlv2TbltDevicePkg: assume GCC48 or later
We're about to remove BaseTools support for GCC44..GCC47. Bump the
assumption about the minimum gcc version to GCC48 in
"Vlv2TbltDevicePkg/bld_vlv.sh".
No GCC44..GCC47 references remain under Vlv2TbltDevicePkg after this
patch.
Cc: Zailiang Sun <zailiang.sun@intel.com> Cc: Yi Qian <yi.qian@intel.com>
Ref: https://bugzilla.tianocore.org/show_bug.cgi?id=1377
Contributed-under: TianoCore Contribution Agreement 1.1 Signed-off-by: Laszlo Ersek <lersek@redhat.com> Reviewed-by: Zailiang Sun <zailiang.sun@intel.com> Reviewed-by: Jordan Justen <jordan.l.justen@intel.com> Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com> Reviewed-by: Liming Gao <liming.gao@intel.com>
Laszlo Ersek [Wed, 2 Jan 2019 19:37:02 +0000 (20:37 +0100)]
OvmfPkg: require GCC48 or later
We're about to remove BaseTools support for GCC44..GCC47. Reject those gcc
versions cleanly in "OvmfPkg/build.sh". In "OvmfPkg/README", upgrade any
mentions of the same gcc versions to GCC48.
No GCC44..GCC47 references remain under OvmfPkg after this patch.
Laszlo Ersek [Wed, 2 Jan 2019 19:22:14 +0000 (20:22 +0100)]
EmulatorPkg: require GCC48 or later
We're about to remove BaseTools support for GCC44..GCC47. Reject those gcc
versions cleanly in "EmulatorPkg/build.sh", and drop build flags too that
are specific to them.
No GCC44..GCC47 references remain under EmulatorPkg after this patch.
Cc: Andrew Fish <afish@apple.com> Cc: Jordan Justen <jordan.l.justen@intel.com> Cc: Ruiyu Ni <ruiyu.ni@intel.com>
Ref: https://bugzilla.tianocore.org/show_bug.cgi?id=1377
Contributed-under: TianoCore Contribution Agreement 1.1 Signed-off-by: Laszlo Ersek <lersek@redhat.com> Reviewed-by: Jordan Justen <jordan.l.justen@intel.com> Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com> Reviewed-by: Liming Gao <liming.gao@intel.com>
The standalone MM core is executed in place, and resides in a
separate execution context which may be space constrained.
Since code and data may be mapped with different attributes for
security reasons, the PE/COFF binary could have a section
alignment of 4 KB.
This means that any relocation data is not only useless, but it
will also take up 4 KB of valuable space.
So add support for the RELOCS_STRIPPED attribute on FFS files of
this type, so that we can get rid of the .reloc section altogether.
Feng, Bob C [Mon, 24 Dec 2018 10:24:46 +0000 (18:24 +0800)]
BaseTools: Correct PcdArray value assigment statement
https://bugzilla.tianocore.org/show_bug.cgi?id=1410
BaseTools should not generate C structure array initial value
if the value is not specified with CODE style.
This patch is going to remove the incorrect initial value statement
and correct the Pcd Array value assignment statement.
Ashish Singhal [Wed, 2 Jan 2019 15:46:48 +0000 (23:46 +0800)]
MdeModulePkg/SdMmcPciHcDxe: Add SDMMC HC v4 and above Support.
Add SDMA, ADMA2 and 26b data length support.
If V4 64 bit address mode is supported in capabilities register,
program controller to enable V4 host mode and use appropriate
SDMA registers supporting 64 bit addresses.
If V4 64 bit address mode is supported in capabilities register,
program controller to enable V4 host mode and use appropriate
ADMA descriptors supporting 64 bit addresses.
If host controller version is above V4.0, enable ADMA2 with 26b data
length support for better performance. HC 2 register is configured to
use 26 bit data lengths and ADMA2 descriptors are configured appropriately.
Alex James [Tue, 18 Dec 2018 04:25:12 +0000 (20:25 -0800)]
StdLib/sys/termios: Define cc_t as unsigned
According to the POSIX standard, cc_t, speed_t, and tcflag_t should be
unsigned integer types. Define cc_t as unsigned to match POSIX and fix
an implicit conversion error when building StdLib with XCODE5/CLANG38.
Previously, when compiling NASM source files, BaseTools did not support
including files outside of the NASM source file directory. As a result, we
duplicated multiple copies of "StuffRsb.inc" files in UefiCpuPkg. Those
INC files contain the common logic to stuff the Return Stack Buffer and
are identical.
After the fix of BZ 1085:
https://bugzilla.tianocore.org/show_bug.cgi?id=1085
The above support was introduced.
Thus, this commit will merge all the StuffRsb.inc files in UefiCpuPkg into
one file. The merged file will be named 'StuffRsbNasm.inc' and be placed
under folder UefiCpuPkg/Include/.
Feng, Bob C [Thu, 20 Dec 2018 11:12:12 +0000 (19:12 +0800)]
BaseTools: Reset FdsGlobalVariable
https://bugzilla.tianocore.org/show_bug.cgi?id=1418
This patch is going to fix a regression issue that is introduced
by commit b3497bad1221704a5dbc5da0b10f42625f1ad2ed.
Before commit b3497b, build launched a external GenFds.py to generate
Fd, so the global variable in GenFds.py was reset in each execution.
After commit b3497b, each GenFds run in the same python interpeter, so
we need to explicitly reset global variable in each GenFdsApi call.
Since BaseLib API AsmLfence() is a x86 arch specific API and should be
avoided using in generic codes, this commit replaces the usage of
AsmLfence() with arch-generic API SpeculationBarrier().
Since BaseLib API AsmLfence() is a x86 arch specific API and should be
avoided using in generic codes, this commit replaces the usage of
AsmLfence() with arch-generic API SpeculationBarrier().
Please note that speculation execution barriers are intended to be
asserted for SMM codes, hence, this commit still preserve an empty
implementation of the speculation execution barrier for the DXE codes.
Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org> Cc: Jiewen Yao <jiewen.yao@intel.com> Cc: Liming Gao <liming.gao@intel.com> Cc: Star Zeng <star.zeng@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.1 Signed-off-by: Hao Wu <hao.a.wu@intel.com> Reviewed-by: Jian J Wang <jian.j.wang@intel.com>
Since BaseLib API AsmLfence() is a x86 arch specific API and should be
avoided using in generic codes, this commit replaces the usage of
AsmLfence() with arch-generic API SpeculationBarrier().
Since BaseLib API AsmLfence() is a x86 arch specific API and should be
avoided using in generic codes, this commit replaces the usage of
AsmLfence() with arch-generic API SpeculationBarrier().
X86 specific BaseLib API AsmLfence() was introduced to address the Spectre
Variant 1 (CVE-2017-5753) issue. The purpose of this API is to insert
barriers to stop speculative execution. However, the API is highly
architecture (X86) specific, and thus should be avoided using across
generic code.
To address this issue, this patch will add a new BaseLib API called
SpeculationBarrier(). Different architectures will have different
implementations for this API.
For IA32 and x64, the implementation of SpeculationBarrier() will
directly call AsmLfence().
For ARM and AARCH64, this patch will add a temporary empty implementation
as a placeholder. We hope experts in ARM can help to contribute the actual
implementation.
For EBC, similar to the ARM and AARCH64 cases, a temporary empty
implementation is added.
projects / mirror_edk2.git / log