Commit Graph

4859 Commits

Author SHA1 Message Date
Jiewen Yao b575ca32c8 MdeModulePkg/XhciPei: Support IoMmu.
Update XHCI driver to consume IOMMU_PPI to allocate DMA buffer.

If no IOMMU_PPI exists, this driver still calls PEI service
to allocate DMA buffer, with assumption that DRAM==DMA.

This is a compatible change.

Cc: Star Zeng <star.zeng@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Jiewen Yao <jiewen.yao@intel.com>
Reviewed-by: Star Zeng <star.zeng@intel.com>
2017-09-16 09:18:16 +08:00
Jiewen Yao 915a3a82e0 MdeModulePkg/Dec: Add IOMMU_PPI GUID.
Cc: Star Zeng <star.zeng@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Jiewen Yao <jiewen.yao@intel.com>
Reviewed-by: Star Zeng <star.zeng@intel.com>
2017-09-16 09:17:57 +08:00
Jiewen Yao 2b620ee1ff MdeModulePkg/Include: Add IOMMU_PPI.
This IOMMU_PPI is to provide IOMMU abstraction in PEI.

Cc: Star Zeng <star.zeng@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Jiewen Yao <jiewen.yao@intel.com>
Reviewed-by: Star Zeng <star.zeng@intel.com>
2017-09-16 09:17:55 +08:00
Paulo Alcantara 11b4463e09 MdeModulePkg/UdfDxe: Fix NULL pointer dereference
REF: https://bugzilla.tianocore.org/show_bug.cgi?id=704

For root directory, the FID (File Identifier Descriptor) pointer is
accessible through PRIVATE_UDF_FILE_DATA.Root, whereas non-root
directory and regular files, their FIDs are accessible through
PRIVATE_UDF_FILE_DATA.File.

In UdfSetPosition(), the FID was retrieved through
PRIVATE_UDF_FILE_DATA.File, hence when calling it with a root directory,
PRIVATE_UDF_FILE_DATA.File.FileIdentifierDescriptor would be NULL and
then dereferenced.

This patch fixes the NULL pointer dereference by calling _FILE() to
transparently return the correct UDF_FILE_INFO * which points to a valid
FID descriptor of a specific file.

Cc: Star Zeng <star.zeng@intel.com>
Cc: Eric Dong <eric.dong@intel.com>
Cc: Ruiyu Ni <ruiyu.ni@intel.com>
Cc: Laszlo Ersek <lersek@redhat.com>
Cc: Steven Shi <steven.shi@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.1
Reported-by: Steven Shi <steven.shi@intel.com>
Signed-off-by: Paulo Alcantara <pcacjr@zytor.com>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Star Zeng <star.zeng@intel.com>
2017-09-15 09:38:05 +08:00
Star Zeng 54537008a2 MdeModulePkg UdfDxe: Fix VS2010/VS2012 build failure
VS2010/VS2012 build failure with below info:
warning C4701:
  potentially uninitialized local variable 'DataOffset' used
  potentially uninitialized local variable 'FilePosition' used
  potentially uninitialized local variable 'FinishedSeeking' used
  potentially uninitialized local variable 'Data' used
warning C4703:
  potentially uninitialized local pointer variable 'Data' used

In fact, DataOffset, FilePosition and FinishedSeeking are initialized
and then used if (ReadFileInfo->Flags == READ_FILE_SEEK_AND_READ).
DoFreeAed will be set to TRUE when Data is allocated and returned from
GetAedAdsData(), and Data will be freed if (DoFreeAed) when exiting.

Use same method at 5afa5b8159 to fix
the build failure.

There is related discussion at
https://lists.01.org/pipermail/edk2-devel/2017-September/014641.html

Cc: Laszlo Ersek <lersek@redhat.com>
Cc: Eric Dong <eric.dong@intel.com>
Cc: Paulo Alcantara <pcacjr@zytor.com>
Cc: Ruiyu Ni <ruiyu.ni@intel.com>
Cc: Liming Gao <liming.gao@intel.com>
Cc: Dandan Bi <dandan.bi@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Star Zeng <star.zeng@intel.com>
Reviewed-by: Paulo Alcantara <pcacjr@zytor.com>
2017-09-15 09:26:24 +08:00
Laszlo Ersek 5afa5b8159 MdeModulePkg/UdfDxe: suppress incorrect compiler warning in ReadFile()
When building the driver for DEBUG/RELEASE, GCC48/GCC49 warn about
ReadFile() possibly using "BytesLeft" without initializing it first.

This is not the case. The reads of "BytesLeft" are only reachable if
(ReadFileInfo->Flags == READ_FILE_SEEK_AND_READ). But, in that case, we
also set "BytesLeft" to "ReadFileInfo->FileDataSize", near the top of the
function.

Assign "BytesLeft" zero at the top, and add a comment that conforms to the
pending Coding Style Spec feature request at
<https://bugzilla.tianocore.org/show_bug.cgi?id=607>.

This issue was reported by Ard's and Gerd's CI systems independently.

Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Cc: Eric Dong <eric.dong@intel.com>
Cc: Paulo Alcantara <pcacjr@zytor.com>
Cc: Ruiyu Ni <ruiyu.ni@intel.com>
Cc: Star Zeng <star.zeng@intel.com>
Reported-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Reported-by: Gerd Hoffmann <kraxel@redhat.com>
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Star Zeng <star.zeng@intel.com>
Reviewed-by: Paulo Alcantara <pcacjr@zytor.com>
2017-09-14 00:05:20 +02:00
Laszlo Ersek 998aee899e MdeModulePkg/UdfDxe: reject reserved values in ICB.Flags[2:0]
The ECMA-167 standard (3rd Edition, June 1997) reserves values 4 through 7
in the ICB.Flags[2:0] bit-field for future standardization; see "14.6 ICB
Tag" / "14.6.8 Flags (RBP 18)".

https://www.ecma-international.org/publications/standards/Ecma-167.htm

The

  switch (RecordingFlags)

statement in the ReadFile() function handles all the standard values,
using the constants of the UDF_FE_RECORDING_FLAGS enum type. However, the
reserved values are not caught with a "default" case label, which both
breaks the edk2 Coding Style Spec, and leaves the Status variable
un-initialized, before we return Status under the Done label.

Set Status to EFI_UNSUPPORTED if we encounter a reserved value.

This issue was reported by Ard's and Gerd's CI systems independently
(through build failures with GCC48/GCC49, DEBUG/RELEASE targets).

Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Cc: Eric Dong <eric.dong@intel.com>
Cc: Paulo Alcantara <pcacjr@zytor.com>
Cc: Ruiyu Ni <ruiyu.ni@intel.com>
Cc: Star Zeng <star.zeng@intel.com>
Reported-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Reported-by: Gerd Hoffmann <kraxel@redhat.com>
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Ruiyu Ni <ruiyu.ni@intel.com>
Reviewed-by: Star Zeng <star.zeng@intel.com>
Reviewed-by: Paulo Alcantara <pcacjr@zytor.com>
2017-09-14 00:05:06 +02:00
Bi, Dandan c3246da7bf MdeModulePkg: Add UdfDxe to the dsc file
Cc: Star Zeng <star.zeng@intel.com>
Cc: Eric Dong <eric.dong@intel.com>
Cc: Ruiyu Ni <ruiyu.ni@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Dandan Bi <dandan.bi@intel.com>
Reviewed-by: Star Zeng <star.zeng@intel.com>
2017-09-13 18:24:40 +08:00
Liming Gao 5f56b0ff24 MdeModulePkg: Update PiDxeS3BootScriptLib Internal function name
To avoid the function name conflict, update the internal function name
to be the specific one.

Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Liming Gao <liming.gao@intel.com>
Reviewed-by: Star Zeng <star.zeng@intel.com>
2017-09-13 15:02:08 +08:00
Paulo Alcantara 35aec96c22 MdeModulePkg/UdfDxe: Remove negative comparison of unsigned number
This patch gets rid of a negative comparison of an UINT64 type (Offset)
as it'll never evaluate to true.

Cc: Star Zeng <star.zeng@intel.com>
Cc: Eric Dong <eric.dong@intel.com>
Cc: Ruiyu Ni <ruiyu.ni@intel.com>
Cc: Dandan Bi <dandan.bi@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.1
Reported-by: Star Zeng <star.zeng@intel.com>
Signed-off-by: Paulo Alcantara <pcacjr@zytor.com>
Reviewed-by: Star Zeng <star.zeng@intel.com>
2017-09-13 14:28:21 +08:00
Laszlo Ersek b4e5807d24 MdeModulePkg/PartitionDxe: remove always false comparison
In the expression

  (RemainderByMediaBlockSize != 0 ||
   Media->BlockSize > UDF_LOGICAL_SECTOR_SIZE)

the second expression is only evaluated if the first expression is false.

If the first expression is false, i.e.,

  RemainderByMediaBlockSize == 0

then UDF_LOGICAL_SECTOR_SIZE is a whole multiple of "Media->BlockSize",
which implies

  UDF_LOGICAL_SECTOR_SIZE >= Media->BlockSize.

Therefore whenever

  Media->BlockSize > UDF_LOGICAL_SECTOR_SIZE

is evaluated, it is false.

The expression

  ((expression) || FALSE)

is equivalent to

  (expression).

Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Cc: Eric Dong <eric.dong@intel.com>
Cc: Paulo Alcantara <pcacjr@zytor.com>
Cc: Ruiyu Ni <ruiyu.ni@intel.com>
Cc: Star Zeng <star.zeng@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Star Zeng <star.zeng@intel.com>
Reviewed-by: Paulo Alcantara <pcacjr@zytor.com>
Reviewed-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
2017-09-12 12:12:31 +02:00
Laszlo Ersek b19aeeb91e MdeModulePkg/PartitionDxe: don't divide 64-bit values with C operators
In edk2, the division and shifting of 64-bit values are forbidden with
C-language operators, because the compiler may generate intrinsic calls
for them.

For example, clang-3.8 emits a call to "__umoddi3" for

  UDF_LOGICAL_SECTOR_SIZE % Media->BlockSize

in PartitionInstallUdfChildHandles(), if PartitionDxe is built for IA32,
which then fails to link.

UDF_LOGICAL_SECTOR_SIZE has type UINT64, while
EFI_BLOCK_IO_MEDIA.BlockSize has type UINT32(). Replace the % operator
with a DivU64x32Remainder() call.

Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Cc: Eric Dong <eric.dong@intel.com>
Cc: Paulo Alcantara <pcacjr@zytor.com>
Cc: Ruiyu Ni <ruiyu.ni@intel.com>
Cc: Star Zeng <star.zeng@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Ruiyu Ni <ruiyu.ni@intel.com>
Reviewed-by: Star Zeng <star.zeng@intel.com>
Reviewed-by: Paulo Alcantara <pcacjr@zytor.com>
Reviewed-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
2017-09-12 12:12:29 +02:00
Laszlo Ersek eb928b17c5 MdeModulePkg/UdfDxe: replace zero-init of local variables with ZeroMem()
In edk2, initialization of local variables is forbidden, both for
stylistic reasons and because such initialization may generate calls to
compiler intrinsics.

For the following initialization in UdfRead():

  CHAR16                          FileName[UDF_FILENAME_LENGTH] = { 0 };

clang-3.8 generates a memset() call, when building UdfDxe for IA32, which
then fails to link.

Replace the initialization with ZeroMem().

Do the same to "FilePath" in UdfOpen().

Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Cc: Eric Dong <eric.dong@intel.com>
Cc: Paulo Alcantara <pcacjr@zytor.com>
Cc: Ruiyu Ni <ruiyu.ni@intel.com>
Cc: Star Zeng <star.zeng@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Star Zeng <star.zeng@intel.com>
Reviewed-by: Paulo Alcantara <pcacjr@zytor.com>
Reviewed-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
2017-09-12 12:12:26 +02:00
Laszlo Ersek 131fd40ffc MdeModulePkg/UdfDxe: don't return unset Status if INLINE_DATA req succeeds
Ard reports that clang-3.8 correctly flags the following issue in the
ReadFile() function:

If "RecordingFlags" is INLINE_DATA, then there are three paths through the
code where we mean to return success, but forget to set Status
accordingly:

(1) when "ReadFileInfo->Flags" is READ_FILE_GET_FILESIZE, or

(2) when "ReadFileInfo->Flags" is READ_FILE_ALLOCATE_AND_READ and
    AllocatePool() succeeds, or

(3) when "ReadFileInfo->Flags" is READ_FILE_SEEK_AND_READ.

Set "Status" to EFI_SUCCESS when we are done processing the INLINE_DATA
request, i.e., when we reach the corresponding "break" statament under the
INLINE_DATA case label.

Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Cc: Eric Dong <eric.dong@intel.com>
Cc: Paulo Alcantara <pcacjr@zytor.com>
Cc: Ruiyu Ni <ruiyu.ni@intel.com>
Cc: Star Zeng <star.zeng@intel.com>
Reported-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Star Zeng <star.zeng@intel.com>
Reviewed-by: Paulo Alcantara <pcacjr@zytor.com>
Reviewed-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
2017-09-12 12:12:24 +02:00
Laszlo Ersek a3240c63ec MdeModulePkg/UdfDxe: ASSERT() valid ReadFileInfo Flags for INLINE_DATA req
In the ReadFile() function, if "RecordingFlags" is INLINE_DATA, then we
cover the following values of "ReadFileInfo->Flags":

- READ_FILE_GET_FILESIZE
- READ_FILE_ALLOCATE_AND_READ
- READ_FILE_SEEK_AND_READ

We don't do anything (just proceed to the end of the function) if
"ReadFileInfo->Flags" is anything else.

In reality the above three values cover the domain of the
UDF_READ_FILE_FLAGS enum type fully, and "ReadFileInfo->Flags" is only
ever set internally to UdfDxe. Therefore any other flag value would be a
bug in UdfDxe.

ASSERT() specifically that "ReadFileInfo->Flags" has been set correctly,
so that the reader is not left wondering what happens if none of the enum
constants match.

Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Cc: Eric Dong <eric.dong@intel.com>
Cc: Paulo Alcantara <pcacjr@zytor.com>
Cc: Ruiyu Ni <ruiyu.ni@intel.com>
Cc: Star Zeng <star.zeng@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Paulo Alcantara <pcacjr@zytor.com>
Reviewed-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
2017-09-12 12:12:18 +02:00
Dandan Bi c05cae55eb MdeModulePkg/PartitionDxe: Initialize the array after declaration
Initialize the array DescriptorLBAs[] after declaration to fix
non-constant aggregate initializer warning in VS tool chains.

Cc: Eric Dong <eric.dong@intel.com>
Cc: Paulo Alcantara <pcacjr@zytor.com>
Cc: Ruiyu Ni <ruiyu.ni@intel.com>
Cc: Star Zeng <star.zeng@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Dandan Bi <dandan.bi@intel.com>
Reviewed-by: Paulo Alcantara <pcacjr@zytor.com>
Reviewed-by: Star Zeng <star.zeng@intel.com>
2017-09-12 17:22:07 +08:00
Bi, Dandan b434f75327 MdeModulePkg/UdfDxe: Initialize the array after declaration
Initialize the array DescriptorLBAs[] after declaration to fix
non-constant aggregate initializer warning in VS tool chains.

Cc: Eric Dong <eric.dong@intel.com>
Cc: Paulo Alcantara <pcacjr@zytor.com>
Cc: Ruiyu Ni <ruiyu.ni@intel.com>
Cc: Star Zeng <star.zeng@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Dandan Bi <dandan.bi@intel.com>
Reviewed-by: Paulo Alcantara <pcacjr@zytor.com>
Reviewed-by: Star Zeng <star.zeng@intel.com>
2017-09-12 17:22:06 +08:00
Bi, Dandan 0b4c8f003a MdeModulePkg/UdfDxe: Add type cast to fix build failure in VS tools
V3: Remove one unnecessay type cast in patch 1.
Codes:
if (FilePosition + ExtentLength > ReadFileInfo->FilePosition) {
  Offset = ReadFileInfo->FilePosition - FilePosition;
  if (Offset < 0) {
    Offset = -(Offset)
  }
...
}
Offset is UINT64 can not < 0, so the code logic may have some issue.
and Offset = -(Offset) may build failure in some circumstance.
Previously type cast Offset to INT64 to fix build break. Now remove
the type cast. Then can to check the code logic later.

Cc: Eric Dong <eric.dong@intel.com>
Cc: Paulo Alcantara <pcacjr@zytor.com>
Cc: Ruiyu Ni <ruiyu.ni@intel.com>
Cc: Star Zeng <star.zeng@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Dandan Bi <dandan.bi@intel.com>
Reviewed-by: Paulo Alcantara <pcacjr@zytor.com>
Reviewed-by: Star Zeng <star.zeng@intel.com>
2017-09-12 17:22:05 +08:00
Laszlo Ersek 1dac45f530 MdeModulePkg/UsbBusDxe: log warning message at DEBUG_WARN level
"UsbSelectConfig: failed to connect driver %r, ignored" is an error
message, but it states at once that the error condition will not affect
the control flow. Degrade the report to DEBUG_WARN.

Cc: Star Zeng <star.zeng@intel.com>
Cc: Eric Dong <eric.dong@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Star Zeng <star.zeng@intel.com>
2017-09-11 22:38:59 +02:00
Star Zeng 2f6ef874ac MdeModulePkg Xhci: Correct description of Timeout param in XhciReg.h
REF: https://bugzilla.tianocore.org/show_bug.cgi?id=653

Correct description of Timeout param in XhciReg.h to be matched with
XhciReg.c.

Cc: Alexei Fedorov <Alexei.Fedorov@arm.com>
Cc: Ruiyu Ni <ruiyu.ni@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Star Zeng <star.zeng@intel.com>
Reviewed-by: Ruiyu Ni <ruiyu.ni@intel.com>
2017-09-11 09:20:44 +08:00
Paulo Alcantara 99c9b94905 MdeModulePkg: Initial UDF/ECMA-167 file system support
This patch introduces UDF file system support in EDK2. All block devices
that support BlockIo and DiskIo protocols and contain a valid UDF file
system - as specified by OSTA Universal Disk Format (revisions 1.02
through 2.60) - will be installed EFI_SIMPLE_FILE_SYSTEM_PROTOCOL to
provide access to underlying file system.

File system operations on regular, directory and symlink files are
supported.

Cc: Star Zeng <star.zeng@intel.com>
Cc: Eric Dong <eric.dong@intel.com>
Cc: Laszlo Ersek <lersek@redhat.com>
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Paulo Alcantara <pcacjr@zytor.com>
Reviewed-by: Ruiyu Ni <ruiyu.ni@intel.com>
2017-09-08 20:42:49 +02:00
Paulo Alcantara 8aafec2c13 MdeModulePkg/PartitionDxe: Add UDF file system support
Scan for UDF file systems on all block devices, as specified by OSTA
Universal Disk Format Specification 2.60, and install a Vendor-Defined
Media Device Path for each file system found.

The Vendor-Defined Media Device Path for the UDF file system is then
checked by UdfDxe to decide whether or not start the driver.

Cc: Star Zeng <star.zeng@intel.com>
Cc: Eric Dong <eric.dong@intel.com>
Cc: Laszlo Ersek <lersek@redhat.com>
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Paulo Alcantara <pcacjr@zytor.com>
Reviewed-by: Ruiyu Ni <ruiyu.ni@intel.com>
2017-09-08 20:42:47 +02:00
Laszlo Ersek 6fb8ddd36b MdeModulePkg/AtaAtapiPassThru: disable the device at ExitBootServices()
The AtaAtapiPassThru driver maps three system memory regions for Bus
Master Common Buffer operation on the following call path, if the
controller has PCI_CLASS_MASS_STORAGE_SATADPA class code:

  AtaAtapiPassThruStart()
    EnumerateAttachedDevice()
      AhciModeInitialization()
        AhciCreateTransferDescriptor()

The device is disabled (including Bus Master DMA) when the controller is
unbound, in AtaAtapiPassThruStop(). Then the regions are unmapped.

The former step should also be done when we exit the boot services, and
the OS gains ownership of system memory.

Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Cc: Brijesh Singh <brijesh.singh@amd.com>
Cc: Eric Dong <eric.dong@intel.com>
Cc: Jiewen Yao <jiewen.yao@intel.com>
Cc: Star Zeng <star.zeng@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Jiewen Yao <jiewen.yao@intel.com>
Reviewed-by: Star Zeng <star.zeng@intel.com>
Reviewed-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
2017-09-08 20:22:38 +02:00
Laszlo Ersek 509daa658b MdeModulePkg/AtaAtapiPassThru: unmap DMA buffers after disabling BM DMA
In AtaAtapiPassThruStop(), if the device has been operating in AHCI mode,
we unmap the DMA buffers and then disable the device (including bus master
DMA). The order of these actions is wrong; we shouldn't unmap DMA buffers
until bus master DMA is turned off. Reverse the steps.

Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Cc: Brijesh Singh <brijesh.singh@amd.com>
Cc: Eric Dong <eric.dong@intel.com>
Cc: Jiewen Yao <jiewen.yao@intel.com>
Cc: Star Zeng <star.zeng@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Jiewen Yao <jiewen.yao@intel.com>
Reviewed-by: Star Zeng <star.zeng@intel.com>
Reviewed-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
2017-09-08 20:22:35 +02:00
Laszlo Ersek eed3f71305 MdeModulePkg/AtaAtapiPassThru: cache EnabledPciAttributes
Both AtaAtapiPassThruStart() and AtaAtapiPassThruStop() fetch the
supported attributes of the device, just so they can toggle the
IO+MMIO+BusMaster subset.

After we compute this bitmask in AtaAtapiPassThruStart(), we can cache it
for later, and save the fetch in AtaAtapiPassThruStop().

Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Cc: Brijesh Singh <brijesh.singh@amd.com>
Cc: Eric Dong <eric.dong@intel.com>
Cc: Jiewen Yao <jiewen.yao@intel.com>
Cc: Star Zeng <star.zeng@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Jiewen Yao <jiewen.yao@intel.com>
Reviewed-by: Star Zeng <star.zeng@intel.com>
Reviewed-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
2017-09-08 20:22:32 +02:00
Fu Siyuan 5f74808d03 MdeModulePkg: Fix GCC build error.
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Fu Siyuan <siyuan.fu@intel.com>
Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org>
2017-09-06 18:07:40 +08:00
Fu Siyuan 5aae2d35de MdeModulePkg/Ip4Dxe: fix a bug in IP4 driver for IpSec protocol notify.
The IP driver uses EfiCreateProtocolNotifyEvent() to register notify callback
function for IpSec protocol, but it didn't notice that the callback will always
be executed at least once, even the protocol wasn't in handle database.
As a result, the Ip4IpSecProcessPacket() will still always call LocateProtocol()
even the IpSec protocol is not installed, which will impact the network
performance.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Fu Siyuan <siyuan.fu@intel.com>
Reviewed-by: Ye Ting <ting.ye@intel.com>
2017-09-06 14:57:29 +08:00
Hao Wu 3f3a69b87a MdeModulePkg/UefiBootManagerLib: Generate boot description for SD/eMMC
REF:https://bugzilla.tianocore.org/show_bug.cgi?id=620

Adds the support for SD/eMMC device path to show as a boot option.

The CID register content (returned from DiskInfo->Inquiry) seems do not
provide very useful/readable 'OEM/Application ID' and 'Product name'
field.

For SD devices, the OID is a 2-character ASCII string and the Product name
is a 5-character ASCII string.

For eMMC devices, the OID is an 8-bit binary number and the Product name
is a 6-character ASCII string.

These strings are relatively short and do not provide a very readable
description. Hence, this commit uses general 'SD (eMMC) Device' for the
boot option description.

Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Hao Wu <hao.a.wu@intel.com>
Reviewed-by: Ruiyu Ni <ruiyu.ni@intel.com>
2017-09-06 09:52:17 +08:00
Star Zeng b2374cecb0 MdeModule PeiCore: Support pre memory page allocation
Support pre memory page allocation.
Support FreePages.
Allocation made prior to permanent memory will be
migrated to permanent memory and the HOB updated.

Cc: Liming Gao <liming.gao@intel.com>
Cc: Ruiyu Ni <Ruiyu.Ni@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Star Zeng <star.zeng@intel.com>
Reviewed-by: Liming Gao <liming.gao@intel.com>
2017-09-04 13:45:46 +08:00
Bi, Dandan 1696b221b1 MdeModulePkg/UefiHiiLib: Fix incorrect check for string length
REF: https://bugzilla.tianocore.org/show_bug.cgi?id=681

For string opcode,when checking the valid string length,
it should exclude the Null-terminated character.
And for string in NameValue storage, need to exclude
the varname and also need to convert the Config string
length to Unicode string length.

Cc: Eric Dong <eric.dong@intel.com>
Cc: Liming Gao <liming.gao@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Dandan Bi <dandan.bi@intel.com>
Reviewed-by: Eric Dong <eric.dong@intel.com>
2017-08-29 15:57:12 +08:00
Star Zeng 0b9c0c6540 MdeModulePkg XhciDxe: Fix Map and Unmap inconsistency
We found there are loops of *2* Maps and only *1* Unmap and
the DMA buffer address is decreasing.

It is caused by the below code flow.
XhcAsyncInterruptTransfer ->
  XhcCreateUrb ->
    XhcCreateTransferTrb ->
      Map Urb->DataMap           (1)

Timer: loops of *2* Maps and only *1* Unmap
XhcMonitorAsyncRequests ->
  XhcFlushAsyncIntMap ->
    Unmap and Map Urb->DataMap   (2)
  XhcUpdateAsyncRequest ->
    XhcCreateTransferTrb ->
      Map Urb->DataMap           (3)

This patch is to eliminate (3).

Cc: Ruiyu Ni <ruiyu.ni@intel.com>
Cc: Jiewen Yao <jiewen.yao@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Star Zeng <star.zeng@intel.com>
Reviewed-by: Ruiyu Ni <ruiyu.ni@intel.com>
2017-08-25 17:09:23 +08:00
Dandan Bi dfc5527590 MdeModulePkg/DriverSample: Add sample case for popup protocol
Add one sample case about how to use HiiPopup protocol to draw message box.

Cc: Eric Dong <eric.dong@intel.com>
Cc: Liming Gao <liming.gao@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Dandan Bi <dandan.bi@intel.com>
Reviewed-by: Liming Gao <liming.gao@intel.com>
2017-08-23 10:37:14 +08:00
Dandan Bi 06aad9a231 MdeModulePkg/DisplayEngine: Add implementation of HiiPopup protocol
Add the implementation of HiiPopup protocol in DisplayEngineDxe,
since DisplayEngineDxe is responsible for drawing tasks.

Cc: Eric Dong <eric.dong@intel.com>
Cc: Liming Gao <liming.gao@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Dandan Bi <dandan.bi@intel.com>
Reviewed-by: Liming Gao <liming.gao@intel.com>
2017-08-23 10:37:14 +08:00
Jiaxin Wu 27ee96701a MdeModulePkg/Library: Remove the self-reference in UdpIoLib/TcpIoLib/IpIoLib
Cc: Ye Ting <ting.ye@intel.com>
Cc: Fu Siyuan <siyuan.fu@intel.com>
Cc: Shao Ming <ming.shao@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Wu Jiaxin <jiaxin.wu@intel.com>
Reviewed-by: Fu Siyuan <siyuan.fu@intel.com>
2017-08-23 09:17:28 +08:00
Laszlo Ersek ce13d2d8c8 MdeModulePkg/ScsiBusDxe: don't produce ScsiIo for nonexistent LUNs, part 2
The SPC-4 says about INQUIRY,

> In response to an INQUIRY command received by an incorrect logical unit,
> the SCSI target device shall return the INQUIRY data with the peripheral
> qualifier set to the value defined in 6.4.2. The INQUIRY command shall
> return CHECK CONDITION status only when the device server is unable to
> return the requested INQUIRY data.

When a device server takes the second branch, and returns CHECK CONDITION
for a nonexistent LUN, the InquiryData structure in the
DiscoverScsiDevice() function remains filled with the original zeros.

DiscoverScsiDevice() then sees zero in both Peripheral_Qualifier and
Peripheral_Type, and therefore ScsiBusDxe produces a ScsiIo protocol
instance with device type zero, for the nonexistent LUN.

Device type zero is EFI_SCSI_TYPE_DISK. Thus ScsiDiskDxe binds the bogus
ScsiIo protocol interface, and produces a similarly bogus BlockIo
interface on top. This ripples up to BDS, where UefiBootManagerLib can
auto-generate bogus UEFI boot options for the nonexistent LUNs.

This has been encountered with QEMU, after commit ded6ddc5a7b9 ("scsi:
clarify sense codes for LUN0 emulation", 2017-08-04). QEMU now answers
INQUIRY commands that were directed to nonexistent LUNs with:

> DiscoverScsiDevice:1361: Lun=2 HostAdapterStatus=0 TargetStatus=2
>                          SenseDataLength=18 InquiryDataLength=96
> Sense {
> Sense 000000 70 00 05 00 00 00 00 0A 00 00 00 00 25 00 00 00
> Sense 000010 00 00
> Sense }
> Inquiry {
> Inquiry 000000 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
> Inquiry 000010 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
> Inquiry 000020 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
> Inquiry 000030 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
> Inquiry 000040 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
> Inquiry 000050 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
> Inquiry }

The interesting fields are:
- HostAdapterStatus=0 (OK),
- TargetStatus=2 (CHECK CONDITION),
- Sense/Error_Code=0x70 (Current error, Fixed description)
- Sense/Sense_Key=0x05 (ILLEGAL REQUEST)

According to SPC-4 "Table 41 -- Sense key descriptions (part 2 of 2)",
ILLEGAL REQUEST is justified when "the command was addressed to an
incorrect logical unit number".

Thus, recognize this kind of answer for nonexistent LUNs.

(

Checking the status fields and the sense data is justified anyway,
according to the documentation of ScsiInquiryCommand():

>   @retval EFI_SUCCESS                    The command was executed
>                                          successfully. See
>                                          HostAdapterStatus,
>                                          TargetStatus, SenseDataLength,
>                                          and SenseData in that order for
>                                          additional status information.

)

Cc: Eric Dong <eric.dong@intel.com>
Cc: Feng Tian <feng.tian@intel.com>
Cc: Hannes Reinecke <hare@suse.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Star Zeng <star.zeng@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Star Zeng <star.zeng@intel.com>
2017-08-19 00:39:05 +02:00
Laszlo Ersek c09e481bbb MdeModulePkg/ScsiBusDxe: remove redundant "else" after "break" statement
The code after the "if" statement is only reachable if the first branch
with the "break" is not taken. Therefore we can move the "else" branch
after the "if" statement, simplifying the code.

Cc: Eric Dong <eric.dong@intel.com>
Cc: Feng Tian <feng.tian@intel.com>
Cc: Hannes Reinecke <hare@suse.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Star Zeng <star.zeng@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Star Zeng <star.zeng@intel.com>
2017-08-19 00:39:01 +02:00
Laszlo Ersek 897efb977f MdeModulePkg/ScsiBusDxe: don't produce ScsiIo for nonexistent LUNs, part 1
The SPC-4 spec says about the INQUIRY data, in "Table 138 -- Peripheral
qualifier":

> Qualifier = 011b  The device server is not capable of supporting a
>                   peripheral device on this logical unit. For this
>                   peripheral qualifier the peripheral device type shall
>                   be set to 1Fh. All other peripheral device type values
>                   are reserved for this peripheral qualifier.

Accordingly, the DiscoverScsiDevice() function returns FALSE if
Peripheral_Qualifier is 3 decimal, but Peripheral_Type differs from 1Fh.
This is a valid sanity check -- such combinations are reserved.

When Peripheral_Qualifier is 3, and Peripheral_Type is 1Fh, then
DiscoverScsiDevice() returns TRUE. While this combination is not reserved,
returning TRUE for it is incorrect: Peripheral_Type 1Fh stands for
"Unknown or no device type", and this combination is returned in
particular when the INQUIRY command was directed to a nonexistent LUN.
Quoting the spec:

> In response to an INQUIRY command received by an incorrect logical unit,
> the SCSI target device shall return the INQUIRY data with the peripheral
> qualifier set to the value defined in 6.4.2. [...]
>
> [...]
>
> The PERIPHERAL QUALIFIER field and PERIPHERAL DEVICE TYPE field identify
> the peripheral device connected to the logical unit. If the SCSI target
> device is not capable of supporting a peripheral device connected to
> this logical unit, the device server shall set these fields to 7Fh
> (i.e., PERIPHERAL QUALIFIER field set to 011b and PERIPHERAL DEVICE TYPE
> field set to 1Fh).

The consequence of this bug is that for each nonexistent Target/LUN pair,
we produce a useless ScsiIo protocol interface. The internal
"ScsiIoDevice->ScsiDeviceType" field will be set to 0x1f, and it will be
returned to higher-level SCSI drivers when they call
ScsiIo->GetDeviceType().

Given that 0x1f means "Unknown or no device type", no higher-level driver
can ever support it, so these ScsiIo protocol interfaces are useless.

The fix is to return FALSE for the (Peripheral_Qualifier=3,
Peripheral_Type=0x1f) combination. With that however we reject the whole
Peripheral_Qualifier=3 space (justifiedly -- see the definition above),
which lets us simplify the code.

Cc: Eric Dong <eric.dong@intel.com>
Cc: Feng Tian <feng.tian@intel.com>
Cc: Hannes Reinecke <hare@suse.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Star Zeng <star.zeng@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Star Zeng <star.zeng@intel.com>
2017-08-19 00:38:42 +02:00
Song, BinX cc063f30dc MdeModulePkg: Delete useless case code
- Delete useless case code to fix /WHOLEARCHIVE build
  error with VS2015 tool chain

Cc: Star Zeng <star.zeng@intel.com>
Cc: Eric Dong <eric.dong@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Bell Song <binx.song@intel.com>
Reviewed-by: Star Zeng <star.zeng@intel.com>
2017-08-16 16:55:22 +08:00
Song, BinX 39bc77eb76 MdeModulePkg: Delete never touched code
- Delete never touched code

Cc: Star Zeng <star.zeng@intel.com>
Cc: Eric Dong <eric.dong@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Bell Song <binx.song@intel.com>
Reviewed-by: Star Zeng <star.zeng@intel.com>
2017-08-16 16:55:18 +08:00
Star Zeng 9a701955a5 MdeModulePkg DxeCore: Enhance "ConvertPages: Incompatible memory types"
When double free pages by FreePages() or allocate allocated pages by
AllocatePages() with AllocateAddress type, the code will print debug
message "ConvertPages: Incompatible memory types", but the debug
message is not very obvious for the error paths by FreePages() or
AllocatePages().

Refer https://lists.01.org/pipermail/edk2-devel/2017-August/013075.html
for the discussion.

This patch is to enhance the debug message for the error paths by
FreePages() or AllocatePages.

Cc: Liming Gao <liming.gao@intel.com>
Cc: Andrew Fish <afish@apple.com>
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Star Zeng <star.zeng@intel.com>
Reviewed-by: Liming Gao <liming.gao@intel.com>
2017-08-14 16:46:03 +08:00
Star Zeng d9af5af8d9 MdeModulePkg DxeCore: Fix double free pages on LoadImage failure path
https://bugzilla.tianocore.org/show_bug.cgi?id=667
reported there is double free pages on LoadImage failure path.

CoreLoadPeImage()
...
  return EFI_SUCCESS;

Done:

  //
  // Free memory.
  //
  if (DstBufAlocated) {
    CoreFreePages (Image->ImageContext.ImageAddress, Image->NumberOfPages);
  }
...

CoreUnloadAndCloseImage()
...
  if ((Image->ImageBasePage != 0) && FreePage) {
    CoreFreePages (Image->ImageBasePage, Image->NumberOfPages);
  }
...

This patch is to follow the suggestion at
https://lists.01.org/pipermail/edk2-devel/2017-August/013112.html
to set Image->ImageContext.ImageAddress and Image->ImageBasePage to 0
after the free in CoreLoadPeImage().

Cc: Liming Gao <liming.gao@intel.com>
Cc: Andrew Fish <afish@apple.com>
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Star Zeng <star.zeng@intel.com>
Reviewed-by: Liming Gao <liming.gao@intel.com>
2017-08-14 16:45:59 +08:00
Jiaxin Wu 67e0bbd6c3 MdeModulePkg/UefiBootManagerLib: Support DNS device path description
This patch is to update UEFI Boot manager to support DNS device path
for HTTP(S) network boot.

Cc: Ye Ting <ting.ye@intel.com>
Cc: Fu Siyuan <siyuan.fu@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Wu Jiaxin <jiaxin.wu@intel.com>
Reviewed-by: Ye Ting <ting.ye@intel.com>
2017-08-14 13:18:37 +08:00
Hao Wu b92efc9fe5 MdeModulePkg/EmmcDxe: Make sure no extra data is erased by EraseBlocks
V3 changes:
Add debug messages for new return path when successfully erase the
specified blocks. Refine logic for calculating the size for writing
zeros to device.

V2 changes:

The Trim command is not supported on all eMMC devices. For those devices
that do not support such command, add codes to handle the scenario.

Commit message:

The current implementation of the Erase Block Protocol service
EraseBlocks() uses the erase command. According to spec eMMC Electrical
Standard 5.1, Section 6.6.9:

The erasable unit of the eMMC is the "Erase Group"; Erase group is
measured in write blocks that are the basic writable units of the Device.
...
When the Erase is executed it will apply to all write blocks within an
erase group.

However, code logic in function EmmcEraseBlocks() does not check whether
the blocks to be erased form complete erase groups. Missing such checks
will lead to erasing extra data on the device.

This commit will:
a. If the device support the Trim command, use the Trim command to
perform the erase operations for eMMC devices.

According to the spec:
Unlike the Erase command, the Trim function applies the erase operation to
write blocks instead of erase groups.

b. If the device does not support the Trim command, use the Erase command
to erase the data in the erase groups. And write zeros to those blocks
that cannot form a complete erase group.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Hao Wu <hao.a.wu@intel.com>
Reviewed-by: Star Zeng <star.zeng@intel.com>
2017-08-14 08:45:10 +08:00
Jiaxin Wu 1126570464 MdeModulePkg/Ip4Dxe: Support SetData interface to clear specific configuration
UEFI Spec 2.7 adds the clarification on SetData interface usage to clear specific
individual data types. This patch is to support this feature.

Cc: Ye Ting <ting.ye@intel.com>
Cc: Fu Siyuan <siyuan.fu@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Wu Jiaxin <jiaxin.wu@intel.com>
Reviewed-by: Ye Ting <ting.ye@intel.com>
2017-08-11 12:57:58 +08:00
Zhang, Chao B 7ef0dae092 MdeModulePkg: Variable: Fix typo in variable measure
Fix variable measure debug message typo.

Cc: Star Zeng <star.zeng@intel.com>
Cc: Yao Jiewen <jiewen.yao@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Chao Zhang <chao.b.zhang@intel.com>
Reviewed-by: Star Zeng <star.zeng@intel.com>
2017-08-09 22:42:29 +08:00
Ruiyu Ni 7111e46fde MdeModulePkg/NvmExpressDxe: Notify NVME HW when system reset happens
Per NVM Express Spec, software should notify NVME HW when shutdown
occurs.

The NVME controller requires notification for shutdown as part of
its management of internal structures. Even with FUA, failing to
notify the NVME controller to shutdown power off causes the NVME
controller to take quite some time to organize its tables on the
next power on. This time exceeds the normal timeout, so we would
fail to boot the NVME disk.

The host should set the Shutdown Notification (CC.SHN) field to 01b
to indicate a normal shutdown operation. The controller indicates
when shutdown processing is completed by updating the Shutdown Status
(CSTS.SHST) field to 10b.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Ruiyu Ni <ruiyu.ni@intel.com>
Reviewed-by: Hao A Wu <hao.a.wu@intel.com>
2017-08-09 15:59:13 +08:00
Star Zeng 4cf3f37c87 MdeModulePkg SerialDxe: Process timeout consistently in SerialRead
https://lists.01.org/pipermail/edk2-devel/2017-July/012385.html
reported the timeout processing in SerialRead is not consistent.

Since SerialPortPoll only checks the status of serial port and
returns immediately, and SerialPortRead does not really implement
a time out mechanism and will always wait for enough input,
it will cause below results:
1. If there is no serial input at all, this interface will return
timeout immediately without any waiting;
2. If there is A characters in serial port FIFO, and caller requires
A+1 characters, it will wait until a new input is coming and timeout
will not really occur.

This patch is to update SerialRead() to check SerialPortPoll() and
read data through SerialPortRead() one byte by one byte, and check
timeout against mSerialIoMode.Timeout if no input.

Cc: Heyi Guo <heyi.guo@linaro.org>
Cc: Ruiyu Ni <ruiyu.ni@intel.com>
Cc: Laszlo Ersek <lersek@redhat.com>
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Star Zeng <star.zeng@intel.com>
Reviewed-by: Ruiyu Ni <ruiyu.ni@intel.com>
2017-08-08 14:16:28 +08:00
Dandan Bi ef3d1df77b MdeModulePkg/DisplayEngine: Fix incorrect display issue
In a form, some new menus may be dynamically inserted between highlight
menu and previous top of screen menu when some question are refreshed.
So the highlight menu and previous top of screen menu perhaps can't be
shown in one page. Existing codes miss to handle this case then will
cause incorrect display.This patch is to fix this display issue.

Cc: Eric Dong <eric.dong@intel.com>
Cc: Liming Gao <liming.gao@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Dandan Bi <dandan.bi@intel.com>
Reviewed-by: Eric Dong <eric.dong@intel.com>
2017-08-04 14:32:43 +08:00
Star Zeng 483e2cddfa MdeModulePkg PeiCore: Install SEC HOB data
If the EFI_SEC_HOB_DATA_PPI is in the list of PPIs passed to the PEI
entry point, the PEI Foundation will call the GetHobs() member
function and install all HOBs returned into the HOB list. It does
this after installing all PPIs passed from SEC into the PPI database
and before dispatching any PEIMs.

Cc: Liming Gao <liming.gao@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Star Zeng <star.zeng@intel.com>
Reviewed-by: Liming Gao <liming.gao@intel.com>
2017-08-04 08:56:05 +08:00
Michael D Kinney 2a98de0344 edk2: Move License.txt file to root
https://bugzilla.tianocore.org/show_bug.cgi?id=642

Add top level License.txt file with the BSD 2-Clause
License that is used by the majority of the EKD II open
source project content.  Merge copyright statements
from the BSD 2-Clause License files in each package
directory and remove the duplication License.txt
file from package directories.

Cc: Leif Lindholm <leif.lindholm@linaro.org>
Cc: Andrew Fish <afish@apple.com>
Cc: Jordan Justen <jordan.l.justen@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Michael D Kinney <michael.d.kinney@intel.com>
Reviewed-by: Jordan Justen <jordan.l.justen@intel.com>
Reviewed-by: Leif Lindholm <leif.lindholm@linaro.org>
2017-08-03 11:02:17 -07:00