Commit Graph

19593 Commits

Author SHA1 Message Date
Zhang Lubo e2f5c491d8 ShellPkg: Fix issue about Ifconfig6 -r command.
Follow the Shell Spec, when the interface name is Specified,
we need to refresh the Ipv6 configuration.

Cc: Hegde Nagaraj P <nagaraj-p.hegde@hpe.com>
Cc: Ye Ting <ting.ye@intel.com>
Cc: Fu Siyuan <siyuan.fu@intel.com>
Cc: Wu Jiaxin <jiaxin.wu@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Zhang Lubo <lubo.zhang@intel.com>
Reviewed-by: Hegde Nagaraj P <nagaraj-p.hegde@hpe.com>
Reviewed-by: Sriram Subramanian <sriram-s@hpe.com>
Reviewed-by: Jaben Carsey <jaben.carsey@intel.com>
Reviewed-By: Wu Jiaxin <jiaxin.wu@intel.com>
2016-07-15 14:45:55 +08:00
Laszlo Ersek dbab994991 OvmfPkg/PlatformPei: program MSR_IA32_FEATURE_CONTROL from fw_cfg
Under certain circumstances, QEMU exposes the "etc/msr_feature_control"
fw_cfg file, with a 64-bit little endian value. The firmware is supposed
to write this value to MSR_IA32_FEATURE_CONTROL (0x3a), on all processors,
on the normal and the S3 resume boot paths.

Utilize EFI_PEI_MPSERVICES_PPI to implement this feature.

Cc: Jeff Fan <jeff.fan@intel.com>
Cc: Jordan Justen <jordan.l.justen@intel.com>
Cc: Michael Kinney <michael.d.kinney@intel.com>
Fixes: https://github.com/tianocore/edk2/issues/97
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Jeff Fan <jeff.fan@intel.com>
Reviewed-by: Jordan Justen <jordan.l.justen@intel.com>
2016-07-15 07:38:56 +02:00
Laszlo Ersek f0e6a56a9a OvmfPkg: include UefiCpuPkg/CpuMpPei
In the next patch we're going to put EFI_PEI_MP_SERVICES_PPI to use.

CpuMpPei uses the following PCDs from gUefiCpuPkgTokenSpaceGuid, beyond
those already used by CpuDxe:

- PcdCpuMicrocodePatchAddress and PcdCpuMicrocodePatchRegionSize: these
  control whether CpuMpPei performs microcode update. If the region size
  is zero, then the microcode update is skipped. UefiCpuPkg.dec sets the
  region size to zero by default, which is appropriate for OVMF.

- PcdCpuApLoopMode and PcdCpuApTargetCstate: the former controls how
  CpuMpPei puts the APs to sleep: 1 -- HLT, 2 -- MWAIT, 3 -- busy wait
  (with PAUSE). The latter PCD is only relevant if the former PCD is 2
  (MWAIT). In order to be consistent with SeaBIOS and with CpuDxe itself,
  we choose HLT. That's the default set by UefiCpuPkg.dec.

Furthermore, although CpuMpPei could consume SecPeiCpuExceptionHandlerLib
technically, it is supposed to consume PeiCpuExceptionHandlerLib. See:

- http://thread.gmane.org/gmane.comp.bios.edk2.devel/12703

- git commit a81abf1616 ("UefiCpuPkg/ExceptionLib: Import
  PeiCpuExceptionHandlerLib module"), part of the series linked above.

Jeff recommended to resolve CpuExceptionHandlerLib to
PeiCpuExceptionHandlerLib for all PEIMs:

- http://thread.gmane.org/gmane.comp.bios.edk2.devel/14471/focus=14477

Since at the moment we have no resolution in place that would cover this
for PEIMs (from either [LibraryClasses] or [LibraryClasses.common.PEIM]),
it's easy to do.

Cc: Jeff Fan <jeff.fan@intel.com>
Cc: Jordan Justen <jordan.l.justen@intel.com>
Cc: Michael Kinney <michael.d.kinney@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Jeff Fan <jeff.fan@intel.com>
Reviewed-by: Jordan Justen <jordan.l.justen@intel.com>
2016-07-15 07:38:55 +02:00
Laszlo Ersek 6b04cca4d6 OvmfPkg: remove PcdS3AcpiReservedMemoryBase, PcdS3AcpiReservedMemorySize
No module in OvmfPkg uses these PCDs any longer.

The first PCD mentioned is declared by OvmfPkg, so we can remove even the
declaration.

The second PCD comes from IntelFrameworkModulePkg. The module that
consumes PcdS3AcpiReservedMemorySize is called
"IntelFrameworkModulePkg/Universal/Acpi/AcpiS3SaveDxe", and it is built
into OVMF. However, AcpiS3SaveDxe consumes the PCD only conditionally: it
depends on the feature PCD called PcdFrameworkCompatibilitySupport, which
we never enable in OVMF.

The 32KB gap that used to be the S3 permanent PEI memory is left unused in
MEMFD for now; it never hurts to have a few KB available there, for future
features.

Cc: Jeff Fan <jeff.fan@intel.com>
Cc: Jordan Justen <jordan.l.justen@intel.com>
Cc: Michael Kinney <michael.d.kinney@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Jeff Fan <jeff.fan@intel.com>
Reviewed-by: Jordan Justen <jordan.l.justen@intel.com>
2016-07-15 07:38:55 +02:00
Laszlo Ersek 45d8708151 OvmfPkg/PlatformPei: rebase and resize the permanent PEI memory for S3
Move the permanent PEI memory for the S3 resume boot path to the top of
the low RAM (just below TSEG if the SMM driver stack is included in the
build). The new size is derived from CpuMpPei's approximate memory demand.

Save the base address and the size in new global variables, regardless of
the boot path. On the normal boot path, use these variables for covering
the area with EfiACPIMemoryNVS type memory.

PcdS3AcpiReservedMemoryBase and PcdS3AcpiReservedMemorySize become unused
in PlatformPei; remove them.

Cc: Jeff Fan <jeff.fan@intel.com>
Cc: Jordan Justen <jordan.l.justen@intel.com>
Cc: Michael Kinney <michael.d.kinney@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Jeff Fan <jeff.fan@intel.com>
Reviewed-by: Jordan Justen <jordan.l.justen@intel.com>
2016-07-15 07:38:53 +02:00
Laszlo Ersek e3e3090a95 OvmfPkg/PlatformPei: create one memory HOB at S3 resume too, for CpuMpPei
CpuMpPei will have to place the AP startup vector in memory under 1MB. For
this, CpuMpPei borrows memory under 1MB, but it needs a memory resource
descriptor HOB to exist there even on the S3 resume path (see the
GetWakeupBuffer() function). Produce such a HOB as an exception on the S3
resume path.

CpuMpPei is going be dispatched no earlier than PlatformPei, because
CpuMpPei has a depex on gEfiPeiMemoryDiscoveredPpiGuid, and PlatformPei
calls PublishSystemMemory().

Cc: Jeff Fan <jeff.fan@intel.com>
Cc: Jordan Justen <jordan.l.justen@intel.com>
Cc: Michael Kinney <michael.d.kinney@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Jeff Fan <jeff.fan@intel.com>
Reviewed-by: Jordan Justen <jordan.l.justen@intel.com>
2016-07-15 07:33:59 +02:00
Jeff Fan 51773d49de UefiCpuPkg/PiSmmCpuDxeSmm: Clean up CheckFeatureSupported()
Removed EFIAPI and parameter from CheckFeatureSupported() and removed
CheckProcessorFeature() totally.

Cc: Michael Kinney <michael.d.kinney@intel.com>
Cc: Feng Tian <feng.tian@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Jeff Fan <jeff.fan@intel.com>
Reviewed-by: Feng Tian <feng.tian@intel.com>
Reviewed-by: Michael Kinney <michael.d.kinney@intel.com>
Regression-tested-by: Laszlo Ersek <lersek@redhat.com>
2016-07-14 08:58:04 -07:00
Jeff Fan a46a4c90d3 UefiCpuPkg/PiSmmCpuDxeSmm: Check XD/BTS features in SMM relocation
CheckProcessorFeature() invokes MpService->StartupAllAps() to detect
XD/BTS features on normal boot path. It's not necessary and may cause
performance impact, because INIT-SIPI-SIPI must be sent to APs if APs
are in hlt-loop mode. XD/BTS feature detection is moved to
SmmInitHandler() in SMM relocation during normal boot path.

Cc: Michael Kinney <michael.d.kinney@intel.com>
Cc: Feng Tian <feng.tian@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Jeff Fan <jeff.fan@intel.com>
Reviewed-by: Feng Tian <feng.tian@intel.com>
Reviewed-by: Michael Kinney <michael.d.kinney@intel.com>
Regression-tested-by: Laszlo Ersek <lersek@redhat.com>
2016-07-14 08:57:59 -07:00
Jeff Fan 70a7493d65 UefiCpuPkg/PiSmmCpuDxeSmm: Add SMM S3 boot flag
It will be set to TRUE during S3 resume.

Cc: Michael Kinney <michael.d.kinney@intel.com>
Cc: Feng Tian <feng.tian@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Jeff Fan <jeff.fan@intel.com>
Reviewed-by: Feng Tian <feng.tian@intel.com>
Reviewed-by: Michael Kinney <michael.d.kinney@intel.com>
Regression-tested-by: Laszlo Ersek <lersek@redhat.com>
2016-07-14 08:57:53 -07:00
Jeff Fan 6c4c15fae6 UefiCpuPkg/PiSmmCpuDxeSmm: Add MemoryMapped in SetProcessorRegister()
REGISTER_TYPE in UefiCpuPkg/Include/AcpiCpuData.h defines a MemoryMapped
enum value.  However support for the MemoryMapped enum is missing from
the implementation of SetProcessorRegister().  This patch adds support
for MemoryMapped type SetProcessorRegister().

One spin lock is added to avoid potential conflict when multiple processor
update the same memory space.

Cc: Michael Kinney <michael.d.kinney@intel.com>
Cc: Feng Tian <feng.tian@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Jeff Fan <jeff.fan@intel.com>
Reviewed-by: Feng Tian <feng.tian@intel.com>
Reviewed-by: Michael Kinney <michael.d.kinney@intel.com>
Regression-tested-by: Laszlo Ersek <lersek@redhat.com>
2016-07-14 08:57:47 -07:00
Jeff Fan 8b9311b795 UefiCpuPkg/PiSmmCpuDxeSmm: Remove duplicate aligned buffer on S3 path
InitializeMpSyncData() invokes InitializeSmmCpuSemaphores() to allocate an
aligned buffer for all locks and semaphores. However, this function is
invoked on S3 resume path again to reset mSmmMpSyncData. It causes
an additional aligned buffer to be allocated.

This update moves InitializeSmmCpuSemaphores() into
InitializeMpServiceData() that is only invoked on normal boot.
InitializeMpSyncData() is updated to reset the locks/semaphore in
mSmmMpSyncData.

Cc: Michael Kinney <michael.d.kinney@intel.com>
Cc: Feng Tian <feng.tian@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Jeff Fan <jeff.fan@intel.com>
Reviewed-by: Feng Tian <feng.tian@intel.com>
Reviewed-by: Michael Kinney <michael.d.kinney@intel.com>
Regression-tested-by: Laszlo Ersek <lersek@redhat.com>
2016-07-14 08:57:41 -07:00
Jeremy Linton 77d172b76d ArmPlatformPkg/ArmJuno: Correct AXI->PCIe translation comments
The AXI<->PCIe translation comments are out of date with
respect to the code. In the first case the AXI master port
is incorrectly called a slave. In the second case the the
translation direction indicated for the slave port is the
wrong direction.

Correct both of these comments to reflect what the code is
doing.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Jeremy Linton <jeremy.linton@arm.com>
Reviewed-by: Leif Lindholm <leif.lindholm@linaro.org>
2016-07-14 15:26:49 +01:00
Jeremy Linton 162e789178 ArmPlatformPkg/ArmJuno: fix Juno PIO host bridge mapping
The Juno PIO mapping is 8M, so it should be using a 32-bit
PIO address translation. Further, PIO addresses should start
at 0 and be translated to/from the ARM MMIO region.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Jeremy Linton <jeremy.linton@arm.com>
Tested-by: Ryan Harkin <ryan.harkin@linaro.org>
Reviewed-by: Leif Lindholm <leif.lindholm@linaro.org>
2016-07-14 15:26:29 +01:00
Liming Gao e39d0569a6 SecurityPkg DxeTpmMeasureBootLib: Add comments in TcgMeasurePeImage()
The input PeImage in TcgMeasurePeImage() has been checked.

Cc: Jiewen Yao <jiewen.yao@intel.com>
Cc: Chao Zhang <chao.b.zhang@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Liming Gao <liming.gao@intel.com>
Reviewed-by: Jiewen Yao <jiewen.yao@intel.com>
Reviewed-by: Chao Zhang <chao.b.zhang@intel.com>
2016-07-14 15:05:40 +08:00
Liming Gao 89fb5aef41 SecurityPkg DxeImageVerificationLib: Add comments in HashPeImage()
The input PeImage in HashPeImage() has been checked.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Liming Gao <liming.gao@intel.com>
Reviewed-by: Jiewen Yao <jiewen.yao@intel.com>
Reviewed-by: Chao Zhang <chao.b.zhang@intel.com>
2016-07-14 15:04:54 +08:00
Liming Gao 5a8eae9560 SecurityPkg Tcg2Dxe: Add check for the PE/COFF image
Use BasePeCoffLib PeCoffLoaderGetImageInfo() to check the PE/COFF image.

In V2, add specific ImageRead() to make sure the PE/COFF image content
read is within the image buffer.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Liming Gao <liming.gao@intel.com>
Reviewed-by: Jiewen Yao <jiewen.yao@intel.com>
Reviewed-by: Chao Zhang <chao.b.zhang@intel.com>
2016-07-14 15:04:54 +08:00
Liming Gao cad19cd3f2 SecurityPkg TrEEDxe: Add check for the PE/COFF image.
Use BasePeCoffLib PeCoffLoaderGetImageInfo() to check the PE/COFF image.

In V2, add specific ImageRead() to make sure the PE/COFF image content
read is within the image buffer.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Liming Gao <liming.gao@intel.com>
Reviewed-by: Jiewen Yao <jiewen.yao@intel.com>
Reviewed-by: Chao Zhang <chao.b.zhang@intel.com>
2016-07-14 15:04:53 +08:00
Liming Gao 5e9dfc6782 SecurityPkg SecureBootConfigDxe: Add check for the external PE/COFF image.
Use BasePeCoffLib PeCoffLoaderGetImageInfo() to check the PE/COFF image.

In V2, add specific ImageRead() to make sure the PE/COFF image content
read is within the image buffer.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Liming Gao <liming.gao@intel.com>
Reviewed-by: Jiewen Yao <jiewen.yao@intel.com>
Reviewed-by: Chao Zhang <chao.b.zhang@intel.com>
2016-07-14 15:04:53 +08:00
Liming Gao 04147690b5 IntelFsp2WrapperPkg: Remove unused header files from Fspm and Fsps WrapperPeim
PlatformSecLib.h is not used and removed.

Cc: Giri P Mudusuru <giri.p.mudusuru@intel.com>
Cc: Jiewen Yao <jiewen.yao@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Liming Gao <liming.gao@intel.com>
Reviewed-by: Giri P Mudusuru <giri.p.mudusuru@intel.com>
2016-07-14 15:01:41 +08:00
Jeff Fan 52f5bd2669 MdePkg/BaseSynchronizationLib: spin lock alignment is 32 at least
Some processor may return small cache line size, we should return 32 bytes at
least for spin lock alignment.

Cc: Liming Gao <liming.gao@intel.com>
Cc: Michael Kinney <michael.d.kinney@intel.com>
Cc: Jiewen Yao <jiewen.yao@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Jeff Fan <jeff.fan@intel.com>
Reviewed-by: Jiewen Yao <jiewen.yao@intel.com>
2016-07-14 09:52:39 +08:00
Jeff Fan 01beffa7e9 UefiCpuPkg/CpuMpPei: Remove PmodeOffset and LmodeOffset
Remove Pmode(Entry)Offset/Lmode(Entry)Offset and use unified Mode(Entry)Offset
to clean up the definition of MP_ASSEMBLY_ADDRESS_MAP and MP_CPU_EXCHANGE_INFO.

Cc: Feng Tian <feng.tian@intel.com>
Cc: Michael Kinney <michael.d.kinney@intel.com>
Cc: Giri Mudusuru <giri.p.mudusuru@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Jeff Fan <jeff.fan@intel.com>
Reviewed-by: Giri P Mudusuru <giri.p.mudusuru@intel.com>
2016-07-14 09:44:09 +08:00
Jeff Fan 6d98a37159 UefiCpuPkg/CpuMpPei: Remove un-used variables and functions
Cc: Feng Tian <feng.tian@intel.com>
Cc: Michael Kinney <michael.d.kinney@intel.com>
Cc: Giri Mudusuru <giri.p.mudusuru@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Jeff Fan <jeff.fan@intel.com>
Reviewed-by: Giri P Mudusuru <giri.p.mudusuru@intel.com>
2016-07-14 09:44:04 +08:00
Jeff Fan 9c3d2f9a29 UefiCpuPkg/CpuMpPei: Do not load new GDT table
Do not load the new GDT table and just to use the exiting BSP's GDT table set up
by SEC phase.

Cc: Feng Tian <feng.tian@intel.com>
Cc: Michael Kinney <michael.d.kinney@intel.com>
Cc: Giri Mudusuru <giri.p.mudusuru@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Jeff Fan <jeff.fan@intel.com>
Reviewed-by: Giri P Mudusuru <giri.p.mudusuru@intel.com>
2016-07-14 09:44:00 +08:00
Jeff Fan d1471c0112 UefiCpuPkg/CpuMpPei/X64: Use CodeSegment and DataSegment fields
Using CodeSegment and DataSegment fields in ExchangeInfo instead of the hardcode
MACROs for x64 arch. Switch AP from real mode to long mode directly, so needn't
the CS/DS of protected mode.

Cc: Feng Tian <feng.tian@intel.com>
Cc: Michael Kinney <michael.d.kinney@intel.com>
Cc: Giri Mudusuru <giri.p.mudusuru@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Jeff Fan <jeff.fan@intel.com>
Reviewed-by: Giri P Mudusuru <giri.p.mudusuru@intel.com>
2016-07-14 09:43:36 +08:00
Jeff Fan 249ed12ea0 UefiCpuPkg/CpuMpPei/X64: Remove hard code CPU BIST value
Cc: Feng Tian <feng.tian@intel.com>
Cc: Michael Kinney <michael.d.kinney@intel.com>
Cc: Giri Mudusuru <giri.p.mudusuru@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Jeff Fan <jeff.fan@intel.com>
Reviewed-by: Giri P Mudusuru <giri.p.mudusuru@intel.com>
2016-07-14 09:41:44 +08:00
Jeff Fan aad5ee4899 UefiCpuPkg/CpuMpPei/Ia32: Use CodeSegment and DataSegment fields
Using CodeSegment and DataSegment fields in ExchangeInfo instead of the hardcode
MACROs.

Cc: Feng Tian <feng.tian@intel.com>
Cc: Michael Kinney <michael.d.kinney@intel.com>
Cc: Giri Mudusuru <giri.p.mudusuru@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Jeff Fan <jeff.fan@intel.com>
Reviewed-by: Giri P Mudusuru <giri.p.mudusuru@intel.com>
2016-07-14 09:41:20 +08:00
Jeff Fan ed04bffe75 UefiCpuPkg/CpuMpPei: Add CodeSegment and DataSegment fields
Added CodeSegment and DataSegment fields in MP_CPU_EXCHANGE_INFO. They are set
to the values of current BSP's CS and DS.

Cc: Feng Tian <feng.tian@intel.com>
Cc: Michael Kinney <michael.d.kinney@intel.com>
Cc: Giri Mudusuru <giri.p.mudusuru@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Jeff Fan <jeff.fan@intel.com>
Reviewed-by: Giri P Mudusuru <giri.p.mudusuru@intel.com>
2016-07-14 09:33:24 +08:00
Yonghong Zhu 0199377c0d BaseTools: Update the FV region name as upper letter
Since in the GenFds phase, the FV is generated as upper letter. This
patch update the FV region name as upper letter, it can fix the build
report generate failure on case sensitive file system.

Cc: Liming Gao <liming.gao@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Yonghong Zhu <yonghong.zhu@intel.com>
Reviewed-by: Liming Gao <liming.gao@intel.com>
Reviewed-by: Andrew Fish <afish@apple.com>
2016-07-14 09:10:45 +08:00
Laszlo Ersek 0e2c6c5529 ArmVirtPkg/PlatformBootManagerLib: remove stale FvFile boot options
(This patch ports OvmfPkg commit 2eb3589860 to ArmVirtPkg. That
functionality was not added to QemuBootOrderLib, because it was (and is)
independent from QEMU and fw_cfg.)

Remove any boot options that point to binaries built into the firmware and
have become stale due to any of the following:
- FvMain's base address or size changed (historical -- see commit
  e191a3114f),
- FvMain's FvNameGuid changed,
- the FILE_GUID of the pointed-to binary changed,
- the referenced binary is no longer built into the firmware.

For example, multiple such "EFI Internal Shell" boot options can coexist.
They technically differ from each other, but may not describe any built-in
shell binary exactly. Such options can accumulate in a varstore over time,
and while they remain generally bootable (thanks to the efforts of
BmGetFileBufferByFvFilePath()), they look bad.

Filter out any stale options.

Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Fixes: https://github.com/tianocore/edk2/issues/107
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
2016-07-13 22:44:34 +02:00
Ard Biesheuvel 7ffced92a7 OvmfPkg/PlatformPei: add missing auto variable initialization
The E820EntriesCount variable in XenPublishRamRegions() may be
referenced without being initialized on RELEASE builds, since the
ASSERT that fires if the call to XenGetE820Map() fails is compiled
out in that case. So initialize it to 0.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
2016-07-13 17:06:17 +02:00
Ard Biesheuvel 28f8d28faa ArmPkg/ArmGicLib: manage GICv3 SPI state at the distributor
Unlike SGIs and PPIs, which are private to the CPU and are managed at
the redistributor level (which is also a per-CPU construct), shared
interrupts (SPIs) are shared between all CPUs, and therefore managed at
the distributor level (just as on GICv2).

Reported-by: Narinder Dhillon <ndhillonv2@gmail.com>
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Reviewed-by: Leif Lindholm <leif.lindholm@linaro.org>
2016-07-13 16:37:21 +02:00
Ard Biesheuvel 31441f2983 ArmPkg/ArmMmuLib: avoid type promotion in TCR_EL1 assignment
Commit fafb7e9c11 ("ArmPkg: correct TTBR1_EL1 settings in TCR_EL1")
introduced a symbolic constant TCR_TG1_4KB which resolves to (2 << 30),
and ORs it into the value to be written into TCR_EL1 (if executing at
EL1). Since the constant is implicitly typed as signed int, and has the
sign bit set, the promotion that occurs when casting to UINT64 results
in a TCR value that has bits [63:32] all set, which includes mostly
RES0 bits but also the TBIn, AS and IPS fields.

So explicitly redefine all TCR related constants as 'unsigned long'
types, using the UL suffix. To avoid confusion in the future, the
inappropriately named VTCR_EL23_xxx constants have the leading V
removed, and the actual VTCR_EL2 related constants are dropped, given
that we never configure stage 2 translation in UEFI.

Reported-by: Vishal Oliyil Kunnil <vishalo@qti.qualcomm.com>
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Reviewed-by: Leif Lindholm <leif.lindholm@linaro.org>
Acked-by: Mark Rutland <mark.rutland@arm.com>
2016-07-13 12:38:48 +02:00
Jeff Fan 30dc4a49b6 UefiCpuPkg/CpuMpPei: Remove unnecessary variable
Cc: Michael Kinney <michael.d.kinney@intel.com>
Cc: Feng Tian <feng.tian@intel.com>
Cc: Giri P Mudusuru <giri.p.mudusuru@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Jeff Fan <jeff.fan@intel.com>
Reviewed-by: Giri P Mudusuru <giri.p.mudusuru@intel.com>
2016-07-13 15:42:10 +08:00
Jeff Fan 719ff8cf3e UefiCpuPkg/CpuMpPei: Dump message if microcode signature not matched
Verification microcode signature is one enhancement and not one requirement from
IA32 SDM. This update is just to dump debug message instead of ASSERT() if the
updated microcode signature does not match the loaded microcode signature.

Cc: Michael Kinney <michael.d.kinney@intel.com>
Cc: Feng Tian <feng.tian@intel.com>
Cc: Giri P Mudusuru <giri.p.mudusuru@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Jeff Fan <jeff.fan@intel.com>
Reviewed-by: Giri P Mudusuru <giri.p.mudusuru@intel.com>
2016-07-13 15:41:49 +08:00
Jeff Fan 46fd118219 UefiCpuPkg/CpuMpPei: Skip microcode check/load if it has been loaded
Actually, there is only one microcode region in platform. If microcode has been
loaded, its signature will not be zero and should be loaded successfully.
We needn't to check microcode region and load microcode again. This update is to
skip checking/loading microcode if current microcode signature is not zero.

Cc: Michael Kinney <michael.d.kinney@intel.com>
Cc: Feng Tian <feng.tian@intel.com>
Cc: Giri P Mudusuru <giri.p.mudusuru@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Jeff Fan <jeff.fan@intel.com>
Reviewed-by: Giri P Mudusuru <giri.p.mudusuru@intel.com>
2016-07-13 15:41:14 +08:00
Laszlo Ersek 8aba40b792 OvmfPkg: add PciHotPlugInitDxe
After IncompatiblePciDeviceSupportDxe, this is another small driver /
protocol implementation that tweaks the behavior of the PCI bus driver in
edk2.

The protocol is specified in the Platform Init Spec v1.4a, Volume 5,
Chapter 12.6 "PCI Hot Plug PCI Initialization Protocol". This
implementation steers the PCI bus driver to reserve the following
resources ("padding") for each PCI bus, in addition to the BARs of the
devices on that PCI bus:
- 2MB of 64-bit non-prefetchable MMIO aperture,
- 512B of IO port space.

The goal is to reserve room for devices hot-plugged at runtime even if the
bridge receiving the device is empty at boot time.

The 2MB MMIO size is inspired by SeaBIOS. The 512B IO port size is
actually only 1/8th of the PCI spec mandated reservation, but the
specified size of 4096 has proved wasteful (given the limited size of our
IO port space -- see commit bba734ab4c). Especially on Q35, where every
PCIe root port and downstream port qualifies as a separate bridge (capable
of accepting a single device).

Test results for this patch:
- regardless of our request for 64-bit MMIO reservation, it is downgraded
  to 32-bit,
- although we request 512B alignment for the IO port space reservation,
  the next upstream bridge rounds it up to 4096B.

Cc: "Johnson, Brian J." <bjohnson@sgi.com>
Cc: Alex Williamson <alex.williamson@redhat.com>
Cc: Andrew Fish <afish@apple.com>
Cc: Feng Tian <feng.tian@intel.com>
Cc: Jordan Justen <jordan.l.justen@intel.com>
Cc: Marcel Apfelbaum <marcel@redhat.com>
Cc: Michael Kinney <michael.d.kinney@intel.com>
Cc: Ruiyu Ni <ruiyu.ni@intel.com>
Cc: Star Zeng <star.zeng@intel.com>
Suggested-by: Andrew Fish <afish@apple.com>
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Acked-by: Jordan Justen <jordan.l.justen@intel.com>
Reviewed-by: Ruiyu Ni <Ruiyu.ni@intel.com>
2016-07-13 08:39:50 +02:00
Laszlo Ersek ffdd337630 MdeModulePkg/PciBusDxe: recognize hotplug-capable PCIe ports
Section 7.8.2 of the PCI Express specification (r4.0 v0.3), entitled "PCI
Express Capabilities Register (Offset 02h)", and section 7.8.9 "Slot
Capabilities Register (Offset 14h)" of the same, describe the conditions
when a PCIe port should be considered "supporting hotplug":

- it should be a root complex port or a switch downstream port, and

- it should have the "Slot Implemented" bit set in the Express
  Capabilities Register, and

- it should have the "Hot-Plug Capable" bit set in the Slot Capabilities
  Register.

The first two sub-conditions are already implemented in at least two open
source projects I could find:

- in SeaBIOS by Marcel Apfelbaum: "hw/pci: reserve IO and mem for pci
  express downstream ports with no devices attached"
  <https://code.coreboot.org/p/seabios/source/commit/3aa31d7d6375>,

- in edk2 itself, in the implementation of the "PCI" UEFI Shell command:
  see the "PcieExplainTypeSlot" case label in function
  PciExplainPciExpress(), file
  "ShellPkg/Library/UefiShellDebug1CommandsLib/Pci.c".

PciBusDxe recognizes such PCIe ports as bridges, but it doesn't realize
they support hotplug. In turn PciBusDxe omits getting any resource padding
information from the platform's EFI_PCI_HOT_PLUG_INIT_PROTOCOL for these
bridges:

  GatherPpbInfo()                [PciEnumeratorSupport.c]
    GetResourcePaddingPpb()      [PciResourceSupport.c]
      GetResourcePaddingForHpb() [PciHotPlugSupport.c]
        IsPciHotPlugBus()        [PciHotPlugSupport.c]
          //
          // returns FALSE
          //
        //
        // the following is not reached:
        //
        gPciHotPlugInit->GetResourcePadding()

Implement a function called SupportsPcieHotplug() for identifying such
ports, and call it from IsPciHotPlugBus() (after the call to IsSHPC()).

Cc: "Johnson, Brian J." <bjohnson@sgi.com>
Cc: Alex Williamson <alex.williamson@redhat.com>
Cc: Andrew Fish <afish@apple.com>
Cc: Feng Tian <feng.tian@intel.com>
Cc: Jordan Justen <jordan.l.justen@intel.com>
Cc: Marcel Apfelbaum <marcel@redhat.com>
Cc: Michael Kinney <michael.d.kinney@intel.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: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Ruiyu Ni <Ruiyu.ni@intel.com>
2016-07-13 08:39:29 +02:00
Laszlo Ersek c6b5fb7386 MdeModulePkg/PciBusDxe: look for the right capability in IsSHPC()
The PCI Hot Plug capability register block is marked with capability ID
0x0C (EFI_PCI_CAPABILITY_ID_SHPC), not 0x06
(EFI_PCI_CAPABILITY_ID_HOTPLUG).

This bug prevents PciBusDxe from recognizing whether a PCI-to-PCI bridge
supports hotplug. In turn the platform's EFI_PCI_HOT_PLUG_INIT_PROTOCOL is
not consulted for resource padding information:

  GatherPpbInfo()                [PciEnumeratorSupport.c]
    GetResourcePaddingPpb()      [PciResourceSupport.c]
      GetResourcePaddingForHpb() [PciHotPlugSupport.c]
        IsPciHotPlugBus()        [PciHotPlugSupport.c]
          IsSHPC()               [PciHotPlugSupport.c]
            //
            // returns FALSE
            //
        //
        // the following is not reached:
        //
        gPciHotPlugInit->GetResourcePadding()

Look for the correct capability ID.

Cc: "Johnson, Brian J." <bjohnson@sgi.com>
Cc: Alex Williamson <alex.williamson@redhat.com>
Cc: Andrew Fish <afish@apple.com>
Cc: Feng Tian <feng.tian@intel.com>
Cc: Jordan Justen <jordan.l.justen@intel.com>
Cc: Marcel Apfelbaum <marcel@redhat.com>
Cc: Michael Kinney <michael.d.kinney@intel.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: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Ruiyu Ni <Ruiyu.ni@intel.com>
2016-07-13 08:39:14 +02:00
Laszlo Ersek 12e6f4f1be MdePkg/IndustryStandard: introduce EFI_PCI_CAPABILITY_ID_SHPC
The "Pci22.h" header file defines the macro EFI_PCI_CAPABILITY_ID_HOTPLUG
with value 0x06. According to all of:
- later parts of the same header file,
- Appendix H ("Capability IDs") of the PCI Local Bus Specification
  Revision 2.3,
- and Chapter 2 ("Capability IDs") of the PCI Code and ID Assignment
  Specification Revision 0.9,

0x06 means "CompactPCI Hot Swap". It does not mean "PCI Hot-Plug": that
capability is described by ID 0x0C:

  0Ch  PCI Hot-Plug -- This Capability ID indicates that the associated
       device conforms to the Standard Hot-Plug Controller model.

Therefore EFI_PCI_CAPABILITY_ID_HOTPLUG is arguably a misnomer. PciBusDxe
(mis-)uses EFI_PCI_CAPABILITY_ID_HOTPLUG in the IsSHPC() helper function
to identify PCI Hot-Plug capability.

In order to preserve compatibility with existent code, leave
EFI_PCI_CAPABILITY_ID_HOTPLUG alone, and introduce
EFI_PCI_CAPABILITY_ID_SHPC with the right ID value.

Cc: "Johnson, Brian J." <bjohnson@sgi.com>
Cc: Alex Williamson <alex.williamson@redhat.com>
Cc: Andrew Fish <afish@apple.com>
Cc: Feng Tian <feng.tian@intel.com>
Cc: Jordan Justen <jordan.l.justen@intel.com>
Cc: Liming Gao <liming.gao@intel.com>
Cc: Marcel Apfelbaum <marcel@redhat.com>
Cc: Michael Kinney <michael.d.kinney@intel.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: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Ruiyu Ni <Ruiyu.ni@intel.com>
2016-07-13 08:38:41 +02:00
Laszlo Ersek 2eb3589860 OvmfPkg/PlatformBootManagerLib: remove stale FvFile boot options
Removes any boot options that point to binaries built into the firmware
and have become stale due to any of the following:
- DXEFV's base address or size changed (historical),
- DXEFV's FvNameGuid changed,
- the FILE_GUID of the pointed-to binary changed,
- the referenced binary is no longer built into the firmware.

For example, multiple such "EFI Internal Shell" boot options can coexist.
They technically differ from each other, but may not describe any built-in
shell binary exactly. Such options can accumulate in a varstore over time,
and while they remain generally bootable (thanks to the efforts of
BmGetFileBufferByFvFilePath()), they look bad.

Filter out any stale options.

This functionality is not added to QemuBootOrderLib, because it is
independent from QEMU and fw_cfg.

Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Cc: Gary Lin <glin@suse.com>
Cc: Jordan Justen <jordan.l.justen@intel.com>
Cc: Ruiyu Ni <ruiyu.ni@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Jordan Justen <jordan.l.justen@intel.com>
2016-07-13 01:04:37 +02:00
Laszlo Ersek 16f26de663 OvmfPkg: add a Name GUID to each Firmware Volume
The FDF spec mentions the FvNameGuid statement for [FV.xxxx] sections, but
the detailed description can be found in Volume 3 of the Platform Init
spec (which is at 1.4a currently).

Adding an FvNameGuid statement to [FV.xxx] has the following effects
(implemented by "BaseTools/Source/C/GenFv/GenFvInternalLib.c"):

- The EFI_FIRMWARE_VOLUME_HEADER.ExtHeaderOffset field is set to a nonzero
  value, pointing after EFI_FIRMWARE_VOLUME_HEADER itself (although not
  directly, see below).

- An EFI_FIRMWARE_VOLUME_EXT_HEADER object is created at the pointed-to
  address. This object is not followed by any
  EFI_FIRMWARE_VOLUME_EXT_ENTRY (= extension) entries, so it only
  specifies the Name GUID for the firmware volume.

  The EFI_FIRMWARE_VOLUME_EXT_HEADER for each firmware volume can be found
  in the Build directory as a separate file (20 bytes in size):

  Build/Ovmf*/*_GCC*/FV/*.ext

- The new data consume 48 bytes in the following volumes: SECFV,
  FVMAIN_COMPACT, DXEFV. They comprise:

  - 16 padding bytes,

  - EFI_FFS_FILE_HEADER2 (8 bytes in total: no Name and ExtendedSize
    fields, and Type=EFI_FV_FILETYPE_FFS_PAD),

  - EFI_FIRMWARE_VOLUME_EXT_HEADER (20 bytes, see above),

  - 4 padding bytes.

  (The initial 16 padding bytes and the EFI_FFS_FILE_HEADER2 structure are
  the reason why EFI_FIRMWARE_VOLUME_HEADER.ExtHeaderOffset does not point
  immediately past EFI_FIRMWARE_VOLUME_HEADER.)

  The sizes of the firmware volumes don't change, only their internal
  usages grow by 48 bytes. I verified that the statements and calculations
  in "OvmfPkg/DecomprScratchEnd.fdf.inc" are unaffected and remain valid.

- The new data consume 0 bytes in PEIFV. This is because PEIFV has enough
  internal padding at the moment to accomodate the above structures
  without a growth in usage.

In the future, firmware volumes can be identified by Name GUID (Fv(...)
device path nodes), rather than memory location (MemoryMapped(...) device
path nodes). This is supposed to improve stability for persistent device
paths that refer to FFS files; for example, UEFI boot options.

Cc: Jordan Justen <jordan.l.justen@intel.com>
Cc: Ruiyu Ni <ruiyu.ni@intel.com>
Suggested-by: Ruiyu Ni <ruiyu.ni@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Jordan Justen <jordan.l.justen@intel.com>
2016-07-13 01:03:57 +02:00
Laszlo Ersek a78b518b6e BaseTools/GenFds: unbreak Region.PadBuffer
In its current form, Region.PadBuffer() fills every second byte with 0x20,
the default separator string of Python's string.join():

https://docs.python.org/2/library/string.html#string.join

This corrupts some firmware because (a) 0x20 never corresponds to any
ErasePolarity, (b) the PadData produced are actually longer than Size.

Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Cc: Liming Gao <liming.gao@intel.com>
Cc: Yonghong Zhu <yonghong.zhu@intel.com>
Reported-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Fixes: bd907fb638
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Tested-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Reviewed-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
2016-07-12 16:22:28 +02:00
Ard Biesheuvel e191a3114f ArmVirtPkg: add name GUIDs to FvMain instances
Assign name GUIDs to the FVs that may appear in DevicePath references to
things like the UiApp and the UEFI Shell. This prevents these device
paths from changing inadvertently when the FV ends up in a different
memory location due to external occurrences such as, e.g., a change in
the amount of system memory.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
2016-07-12 15:19:42 +02:00
Ard Biesheuvel f4aee089ca ArmVirtPkg: factor out Rules FDF section
All three current ArmVirtPkg have identical [Rules] sections in their
FDF definitions, and ideally, they should remain that way. So factor
out the definitions into a separate include file, and replace the
existing definitions with !include directives.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
2016-07-12 15:19:42 +02:00
Ard Biesheuvel c9eca0b285 ArmVirtPkg/ArmVirtQemu: factor out shared FV.FvMain definition
The FDF definition of [FV.FvMain] is identical between ArmVirtQemu and
ArmVirtQemuKernel, and needs to remain that way. So factor it out into
a separate include file, and replace both definitions with an !include
directive.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
2016-07-12 15:19:42 +02:00
Ard Biesheuvel 0a8bc04e6f ArmVirtPkg: align ArmVirtQemuKernel with ArmVirtQemu
The platform ArmVirtQemuKernel is intended as an alternative for
ArmVirtQemu that only deviates in the way it is invoked by QEMU, either
from flash address 0x0 (the default ARM reset vector) or via the Linux
kernel boot protocol. So add VirtioRngDxe and HighMemDxe here as well.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
2016-07-12 15:19:42 +02:00
Ard Biesheuvel 9940a80492 ArmVirtPkg: ArmVirtQemuKernel: make ACPI support AARCH64 only
The reasoning of patch 8e2efec6b206:

  No ARM support for ACPI is planned under any OS we intend to run under
  ArmVirtQemu-ARM, so remove the drivers from the ARM build.

applies equally to ArmVirtQemuKernel, so apply the same change there.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
2016-07-12 15:19:42 +02:00
Ard Biesheuvel cb9f629e88 ArmVirtPkg/HighMemDxe: allow patchable PCD for PcdSystemMemoryBase
Redefine the reference to PcdSystemMemoryBase in HighMemDxe.inf as
a plain [Pcd] rather than [FixedPcd] (and fix up the code as
appropriate). This allows us to align ArmVirtQemuKernel with
ArmVirtQemu, given that the former uses a patchable PCD not a fixed
PCD.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
2016-07-12 15:19:42 +02:00
Hao Wu 4c33f8b190 MdeModulePkg AtaBusDxe: Fix ATA commands cannot be sent to some devices
If there is no port multiplier (PortMultiplierPort = 0xFFFF), current code
in functions TransferAtaDevice() and TrustTransferAtaDevice() will always
set the DEV bit of the ATA device register. It causes that ATA commands
cannot be sent to some ATA hard drives.

Cc: Feng Tian <feng.tian@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Hao Wu <hao.a.wu@intel.com>
Reviewed-by: Feng Tian <feng.tian@intel.com>
2016-07-12 20:27:25 +08:00
Laszlo Ersek bd907fb638 BaseTools/GenFds: speed up Region.PadBuffer()
The current implementation calls both pack() and Buffer.write() Size
times. The new implementation calls both of these methods only once; the
full data to write are constructed locally [1]. The range() function is
replaced by xrange() because the latter is supposed to be faster / lighter
weight [2].

On my laptop, I tested the change as follows: I pre-built the series at
[3] with

  build -a X64 -p OvmfPkg/OvmfPkgX64.dsc -t GCC48 -b DEBUG \
      -D HTTP_BOOT_ENABLE -D SECURE_BOOT_ENABLE

(The series at [3] is relevant because it increases the size of one of the
padded regions by 8.5 MB, slowing down the build quite a bit.)

With all source code already compiled, repeating the above command takes
approximately 45 seconds. With the patch applied, it goes down to 29
seconds.

[1] http://stackoverflow.com/questions/27384093/fastest-way-to-write-huge-data-in-file
[2] https://docs.python.org/2/library/functions.html?highlight=xrange#xrange
[3] http://thread.gmane.org/gmane.comp.bios.edk2.devel/14214

We can also measure the impact with a synthetic test:

> import timeit
>
> test_old = """
> import struct, string, StringIO
> Size = (8 * 1024 + 512) * 1024
> Buffer = StringIO.StringIO()
> PadData = 0xFF
> for i in range(0, Size):
>     Buffer.write(struct.pack('B', PadData))
> """
>
> test_new = """
> import struct, string, StringIO
> Size = (8 * 1024 + 512) * 1024
> Buffer = StringIO.StringIO()
> PadByte = struct.pack('B', 0xFF)
> PadData = string.join(PadByte for i in xrange(0, Size))
> Buffer.write(PadData)
> """
>
> print(timeit.repeat(stmt=test_old, number=1, repeat=3))
> print(timeit.repeat(stmt=test_new, number=1, repeat=3))

The output is

[8.231637001037598, 8.81188416481018, 8.948754072189331]
[0.5503702163696289, 0.5461571216583252, 0.578315019607544]

Cc: Yonghong Zhu <yonghong.zhu@intel.com>
Cc: Liming Gao <liming.gao@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Liming Gao <liming.gao@intel.com>
2016-07-12 13:19:27 +02:00