The QEMU command line option
-boot menu=on
is meant to have the guest firmware wait for a firmware-specific interval
for the user to enter the boot menu. During the wait, the user can opt to
enter the boot menu, or interrupt the wait and proceed to booting at once.
If the wait interval elapses, the firmware should boot as it normally
would.
The QEMU command line option
-boot menu=on,splash-time=N
means the same, except the firmware should wait for cca. N milliseconds
instead of a firmware-specific interval.
We can approximate this behavior quite well for edk2's virtual platforms
because the Intel BDS front page already supports a progress bar, with
semantics similar to the above. Let's distill the fw_cfg bits underlying
"-boot menu=on,splash-time=N" for the BDS policies, in the form of a
timeout value they can pass to Intel's PlatformBdsEnterFrontPage().
If the boot menu is not requested, we return
"gEfiIntelFrameworkModulePkgTokenSpaceGuid.PcdPlatformBootTimeOut", which
is what the virtual platforms use right now.
If the boot menu is requested without specifying the timeout, we return
the same PCD, unless it would cause us to skip the boot menu at once. In
the latter case, we return 3 seconds (as an approximation of the 2500 ms
SeaBIOS default.)
RHBZ: https://bugzilla.redhat.com/show_bug.cgi?id=1170507
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Jordan Justen <jordan.l.justen@intel.com>
Reviewed-by: Olivier Martin <Olivier.martin@arm.com>
git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@16610 6f19259b-4bc3-4df7-8a09-765794883524
SVN r16601 ("MdeModulePkg, MdePkg, NetworkPkg, OvmfPkg, PerformancePkg,
ShellPkg: Library Migration.") incorporated ShellPkg/Library/BasePathLib
into MdePkg/Library/BaseLib. BasePathLib had been the only instance of
library class PathLib.
Even so, SVN r16606 ("ShellPkg: allow creating of files to create required
directory path") added a PathLib dependency to
"ShellPkg/Library/UefiShellLib/UefiShellLib.inf".
This breaks edk2 platforms that build the "new" UEFI shell from source.
Undo the wrong dependency.
Similarly, update the <Library/PathLib.h> #include directive to
<Library/BaseLib.h> (example function prototype: PathRemoveLastItem()).
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Jaben Carsey <jaben.carsey@intel.com>
git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@16609 6f19259b-4bc3-4df7-8a09-765794883524
The following libraries are being migrated out of ShellPkg in order to make
their functionality more widely available.
• PathLib: Incorporate into MdePkg/Library/BaseLib
• FileHandleLib: MdePkg/Library/UefiFileHandleLib
• BaseSortLib: MdeModulePkg/Library/BaseSortLib
• UefiSortLib: MdeModulePkg/Library/UefiSortLib
AppPkg.dsc:
StdLib.dsc:
StdLib.inc:
Delete PathLib LibraryClass description.
Update FileHandleLib LibraryClass description to reflect its new location.
Update SortLib LibraryClass description to reflect its new location.
StdLib.inf:
Delete PathLib from LibraryClasses.
realpath.c:
Delete include of PathLib.h.
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Daryl McDaniel <daryl.mcdaniel@intel.com>
Reviewed-by: Jaben Carsey <jaben.carsey@intel.com>
Reviewed-by: Lee Rosenbaum <lee.g.rosenbaum@intel.com>
git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@16608 6f19259b-4bc3-4df7-8a09-765794883524
The following libraries are being migrated out of ShellPkg in order to make
their functionality more widely available.
• PathLib: Incorporate into MdePkg/Library/BaseLib
• FileHandleLib: MdePkg/Library/UefiFileHandleLib
• BaseSortLib: MdeModulePkg/Library/BaseSortLib
• UefiSortLib: MdeModulePkg/Library/UefiSortLib
EmulatorPkg.dsc:
Delete PathLib LibraryClass description
Update FileHandleLib LibraryClass description to reflect its new location.
Update SortLib LibraryClass description to reflect its new location.
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Daryl McDaniel <daryl.mcdaniel@intel.com>
Reviewed-by: Jordan Justen <jordan.l.justen@intel.com>
Reviewed-by: Jaben Carsey <jaben.carsey@intel.com>
Reviewed-by: Lee Rosenbaum <lee.g.rosenbaum@intel.com>
git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@16607 6f19259b-4bc3-4df7-8a09-765794883524
Move libraries from ShellPkg into MdeModulePkg and MdePkg.
The following libraries are being migrated out of ShellPkg in order to make
their functionality more widely available.
• PathLib: Incorporate into MdePkg/Library/BaseLib
• FileHandleLib: MdePkg/Library/UefiFileHandleLib
• BaseSortLib: MdeModulePkg/Library/BaseSortLib
• UefiSortLib: MdeModulePkg/Library/UefiSortLib
Diffs showing file changes are in the attached file, LibMigration.patch.
A description of the changes follows:
• Move ShellPkg/Include/Library/FileHandleLib.h to MdePkg/Include/Library/FileHandleLib.h
• Move ShellPkg/Include/Library/SortLib.h to MdeModulePkg/Include/Library/SortLib.h
• Move ShellPkg/Library/BaseSortLib to MdeModulePkg/Library/BaseSortLib
• Move ShellPkg/Library/UefiSortLib to MdeModulePkg/Library/UefiSortLib
• Move ShellPkg/Library/BasePathLib/BasePathLib.c to MdePkg/Library/BaseLib/FilePaths.c
• Merge ShellPkg/Include/Library/PathLib.h into MdePkg/Include/Library/BaseLib.h
• Delete ShellPkg/Library/BasePathLib; Includes BasePathLib.c and BasePathLib.inf
• NetworkPkg/NetworkPkg.dsc
• PerformancePkg.dsc
• OvmfPkg/OvmfPkgX64.dsc
• OvmfPkg/OvmfPkgIa32X64.dsc
• OvmfPkg/OvmfPkgIa32.dsc
o Update SortLib and FileHandleLib library classes to point to the new library locations.
o Remove PathLib library class and make sure that BaseLib is described.
• MdeModulePkg/MdeModulePkg.dec
o Add SortLib library class
• MdePkg/MdePkg.dec
o Add FileHandleLib library class
o Add PcdUefiFileHandleLibPrintBufferSize PCD
• MdePkg/Library/BaseLib/BaseLib.inf
o Add FilePaths.c to [Sources]
• MdePkg/Include/Library/BaseLib.h
o Update file description to include "file path functions"
• ShellPkg/ShellPkg.dsc
o Change PACKAGE_GUID to { C1014BB7-4092-43D4-984F-0738EB424DBF }
o Update PACKAGE_VERSION to 1.0
o Update SortLib and FileHandleLib library classes to point to the new library locations.
o Remove PathLib library class and make sure that BaseLib is described.
o Remove ShellPkg/Library/UefiFileHandleLib/UefiFileHandleLib.inf from [Components]
• ShellPkg/ShellPkg.dec
o Update PLATFORM_VERSION to 1.0
o Remove declarations of the FileHandleLib, SortLib, and PathLib Library Classes
o Update comment for the PcdShellPrintBufferSize PCD.
• ShellPkg/Library/UefiShellLevel2CommandsLib/UefiShellLevel2CommandsLib.inf
• ShellPkg/Application/Shell/Shell.inf
o Remove PathLib from [LibraryClasses]
• ShellPkg/Library/UefiShellLevel2CommandsLib/UefiShellLevel2CommandsLib.h
• ShellPkg/Application/Shell/Shell.h
o Remove #include <Library/PathLib.h>
• ShellPkg/Library/UefiShellLevel1CommandsLib/UefiShellLevel1CommandsLib.inf
o Add PathLib to [LibraryClasses]
• ShellPkg/Library/UefiShellLevel1CommandsLib/If.c
o Remove #include <Library/PathLib.h>
• ShellPkg/Application/ShellSortTestApp/ShellSortTestApp.inf
o Add MdeModulePkg/MdeModulePkg.dec to [Packages]
• MdeModulePkg/Library/BaseSortLib/BaseSortLib.inf
• MdeModulePkg/Library/UefiSortLib/UefiSortLib.inf
o Replace ShellPkg.dec with MdeModulePkg.dec in [Packages]
• MdeModulePkg/Library/UefiSortLib/UefiSortLib.c
o Remove #include <ShellBase.h>
o Define USL_FREE_NON_NULL() to replace SHELL_FREE_NON_NULL()
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Daryl McDaniel <daryl.mcdaniel@intel.com>
Reviewed-by: Jaben Carsey <jaben.carsey@intel.com>
Reviewed-by: Erik Bjorge <erik.c.bjorge@intel.com>
git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@16601 6f19259b-4bc3-4df7-8a09-765794883524
El Torito format can be used on different media (eg: USB).
A ISO image can be dumped onto a USB mass-storage.
These media might not have the same block size as the CDROM media (ie: 2KB).
The El Torito code and the specification assumes a LBA 2KB.
In addition, the specification says in "12.3.4.4 CD-ROM and DVD-ROM":
UEFI code does not assume a fixed block size.
I was able to dupliacte the issue by copying a debian ISO on a USB driver.
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Olivier Martin <olivier.martin@arm.com>
Reviewed-by: Ruiyu Ni <ruiyu.ni@intel.com>
git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@16600 6f19259b-4bc3-4df7-8a09-765794883524
If TPM error happens, set TPM flag to NOT present, so that trusted boot patch is disabled.
Also report status code for failure, so that platform may register handler to apply policy like force system reset, or disable TPM permanently.
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: "Yao, Jiewen" <jiewen.yao@intel.com>
Reviewed-by: "Dong, Guo" <guo.dong@intel.com>
git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@16598 6f19259b-4bc3-4df7-8a09-765794883524
The Tcg/TrEE PhysicalPresence library will depend on Tcg/TrEE PpVendor library.
The default NULL library instance is provided in this package.
OEM can create OemPpVendorLib as override to handle >=128 operation value.
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: "Yao, Jiewen" <jiewen.yao@intel.com>
Reviewed-by: "Dong, Guo" <guo.dong@intel.com>
git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@16597 6f19259b-4bc3-4df7-8a09-765794883524
NASM tool version should be 2.07 instead of 2.0.7.
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Liming Gao <liming.gao@intel.com>
Reviewed-by: Jordan Justen <jordan.l.justen@intel.com>
git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@16596 6f19259b-4bc3-4df7-8a09-765794883524
As they may be raised as false positive in building.
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Shumin Qiu <shumin.qiu@intel.com>
Reviewed-by: Liming Gao <liming.gao@intel.com>
git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@16594 6f19259b-4bc3-4df7-8a09-765794883524
SPrintLength() and SPrintLengthAsciiFormat() API doesn’t work with 'g', 't' and 'r' option. The fix sync from MdePkg BasePrintLib instance.
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Liming Gao <liming.gao@intel.com>
Reviewed-by: Eric Dong <eric.dong@intel.com>
git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@16593 6f19259b-4bc3-4df7-8a09-765794883524
When loading an image from a file, close the file after reading from it.
Use OpenProtocol instead of HandleProtocol to retrieve the simple file
system protocol interface.
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Ronald Cron <Ronald.Cron@arm.com>
Reviewed-by: Olivier Martin <olivier.martin@arm.com>
git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@16586 6f19259b-4bc3-4df7-8a09-765794883524
Fix DHCP4 configuration as part of TFTP boot process to get the IP address of
the gateway and the subnet mask from the DHCP server.
Fix a memory leak when the download from the TFTP server fails as well.
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Ronald Cron <Ronald.Cron@arm.com>
Reviewed-by: Olivier Martin <olivier.martin@arm.com>
git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@16582 6f19259b-4bc3-4df7-8a09-765794883524
and follow UEFI spec to check UEFI defined variables.
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Star Zeng <star.zeng@intel.com>
Reviewed-by: Jiewen Yao <jiewen.yao@intel.com>
git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@16580 6f19259b-4bc3-4df7-8a09-765794883524
and follow UEFI spec to check UEFI defined variables.
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Star Zeng <star.zeng@intel.com>
Reviewed-by: Jiewen Yao <jiewen.yao@intel.com>
git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@16579 6f19259b-4bc3-4df7-8a09-765794883524
A number of tools depend on passing the kernel image, the initial ramdisk,
and the kernel command line to the guest on the QEMU command line (options
-kernel, -initrd, -append, respectively). At the moment, these QEMU
options work, but the guest kernel loaded this way is launched by a
minimal binary firmware that is dynamically composed by QEMU. As a
consequence, such a kernel has no UEFI environment.
This patch enables -kernel, -initrd, -append to work on top of the
ArmVirtualizationQemu firmware build. The approach it takes is different
from how the same functionality is implemented in OvmfPkg.
OvmfPkg contains a full-fledged Linux boot loader (see
"OvmfPkg/Library/PlatformBdsLib/QemuKernel.c" and
"OvmfPkg/Library/LoadLinuxLib/"). OVMF's LoadLinuxLib sets up the required
kernel environment in a sophisticated way (including x86-specific
artifacts like the GDT), calls ExitBootServices() itself (for legacy
kernels without EFI handover protocol), and jumps to the kernel (using x86
assembly).
In ArmVirtualizationPkg's PlatformIntelBdsLib, we require the kernel being
loaded to have an EFI stub -- that is, to be a genuine UEFI application.
(The EFI stub is not an additional burden for guest kernels -- the EFI
stub is a hard requirement anyway because it needs to process the DTB
heavily:
- it removes memory nodes,
- it removes memreserve entries,
- it adds UEFI properties to the "chosen" node,
- it calculates and installs virt-to-phys mappings with
SetVirtualAddressMap() in a way that enables kexec [planned].
Kudos to Ard Biesheuvel for summarizing the above.)
An EFI-stubbed Linux guest kernel can be loaded with plain
gBS->LoadImage(). The EFI stub will look up its own
EFI_LOADED_IMAGE_DEVICE_PATH_PROTOCOL instance (ie. the device path where
it has been loaded from), and it will locate the initial ramdisk named by
the "initrd" command line parameter as a *sibling file* on the same
device.
The initrd file is then loaded using the EFI_SIMPLE_FILE_SYSTEM_PROTOCOL.
This approach enables the EFI stub to load the initial ramdisk from normal
EFI System Partitions, from remote PXE/TFTP directories -- and it enables
us to provide the initrd from memory as well.
In this patch:
- We download the kernel image, the initrd image, and the kernel command
line, using QEMU's fw_cfg interface.
- We create a read-only EFI_SIMPLE_FILE_SYSTEM_PROTOCOL instance that has
just a root directory, with the three downloaded files in it.
- The handle that carries the simple file system has a single-node
VenHw(...) device path (not counting the terminator node).
- We load the EFI-stubbed kernel (which is a UEFI application) with
gBS->LoadImage(), passing "VenHw(...)/kernel" as device path. This
causes gBS->LoadImage() to call back into our filesystem.
- Appended to the downloaded command line, we pass "initrd=initrd" to the
EFI stub.
- Once the EFI stub is running, it loads the initial ramdisk from the
"sibling" device path "VenHw(...)/initrd", also calling back into our
filesystem.
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@16578 6f19259b-4bc3-4df7-8a09-765794883524
The default value of this PCD (in "IntelFrameworkModulePkg.dec")
identifies the "old shell" from EdkShellBinPkg. Our build includes the
"new" shell from ShellBinPkg/UefiShell/UefiShell.inf; let's specify the
FILE_GUID of that.
Otherwise, no boot option will be generated for the Shell application.
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Olivier Martin <Olivier.martin@arm.com>
git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@16577 6f19259b-4bc3-4df7-8a09-765794883524
We have all the required pieces in place. Let's call
SetBootOrderFromQemu() in PlatformBdsPolicyBehavior().
We disable OFW-to-UEFI device path fragment translation for virtio-pci,
and enable it only virtio-mmio at this time.
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Olivier Martin <Olivier.martin@arm.com>
git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@16576 6f19259b-4bc3-4df7-8a09-765794883524
The TranslateMmioOfwNodes() function recognizes the following OpenFirmware
device paths:
virtio-blk: /virtio-mmio@000000000a003c00/disk@0,0
virtio-scsi disk: /virtio-mmio@000000000a003a00/channel@0/disk@2,3
virtio-net NIC: /virtio-mmio@000000000a003e00/ethernet-phy@0
The new translation can be enabled with the
"PcdQemuBootOrderMmioTranslation" Feature PCD. This PCD also controls if
the "survival policy" covers unselected boot options that start with the
virtio-mmio VenHw() node.
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Acked-by: Jordan Justen <jordan.l.justen@intel.com>
git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@16575 6f19259b-4bc3-4df7-8a09-765794883524
The OpenFirmware device path nodes that QEMU generates for virtio-mmio
transports contain 64-bit hexadecimal values (16 nibbles) -- the base
addresses of the register blocks. In order to parse them soon,
ParseUnitAddressHexList() must parse UINT64 values.
Call sites need to be adapted, as expected.
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Acked-by: Jordan Justen <jordan.l.justen@intel.com>
git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@16574 6f19259b-4bc3-4df7-8a09-765794883524
Installing VenHw() device paths with this GUID, for the virtio-mmio
transports that we detect, enables other modules to recognize those
VenHw() nodes. (Note that the actual value doesn't change.)
In addition, to avoid reusing GUIDs in unrelated contexts, detach the
driver's FILE_GUID from its previous value.
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@16573 6f19259b-4bc3-4df7-8a09-765794883524
Soon there will be more than one modules (in separate packages) that need
to have an understanding about the GUID used in the VenHw() device path
nodes that describe virtio-mmio transports. Define such a GUID explicitly.
Preserve the current value (which happens to be the FILE_GUID of
ArmPlatformPkg/ArmVirtualizationPkg/VirtFdtDxe/VirtFdtDxe.inf) for
compatibility with external users.
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Acked-by: Jordan Justen <jordan.l.justen@intel.com>
git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@16572 6f19259b-4bc3-4df7-8a09-765794883524
In preparation for adding OpenFirmware-to-UEFI translation for "MMIO-like"
OFW device path fragments, let's turn the currently exclusive "PCI-like"
translation into "just one" of the possible translations.
- Rename TranslateOfwNodes() to TranslatePciOfwNodes(), because it is
tightly coupled to "PCI-like" translations.
- Rename REQUIRED_OFW_NODES to REQUIRED_PCI_OFW_NODES, because this macro
is specific to TranslatePciOfwNodes().
- Introduce a new wrapper function under the original TranslateOfwNodes()
name. This function is supposed to try translations in some order until
a specific translation returns a status different from
RETURN_UNSUPPORTED.
- Introduce a new Feature PCD that controls whether PCI translation is
attempted at all.
- The boot option "survival policy" in BootOrderComplete() must take into
account if the user was able to select PCI-like boot options. If the
user had no such possibility (because the Feature PCD was off for
PCI-like translation), then we ought to keep any such unselected boot
options.
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Acked-by: Jordan Justen <jordan.l.justen@intel.com>
git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@16571 6f19259b-4bc3-4df7-8a09-765794883524
and rebase OvmfPkg's PlatformBdsLib on the standalone library.
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Acked-by: Jordan Justen <jordan.l.justen@intel.com>
git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@16570 6f19259b-4bc3-4df7-8a09-765794883524
In PlatformBdsPolicyBehavior() we should follow the same pattern as in
OvmfPkg's: after the consoles are connected,
- connect all drivers and devices,
- enumerate all boot options,
- enter the Intel BDS FrontPage if the user presses a key different from
Enter.
We set the countdown to 3 seconds, similarly to the timeout that we
specify for ARM BDS.
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Olivier Martin <Olivier.martin@arm.com>
git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@16569 6f19259b-4bc3-4df7-8a09-765794883524
In the next patch(es) we'll customize the PlatformBdsLib instance used by
ArmVirtualizationQemu.dsc. Let's clone it first verbatim from
ArmPlatformPkg/Library/PlatformIntelBdsLib, changing only its FILE_GUID.
(Also, coding style errors like "missing space before open parenthesis"
and "missing space after comma or semicolon" have been cleaned up.)
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@16568 6f19259b-4bc3-4df7-8a09-765794883524
Shumin Qiu
David Wei
Laszlo Ersek
Daryl McDaniel
jaben carsey
Olivier Martin
Ruiyu Ni
Yao, Jiewen
Liming Gao
Star Zeng
Eric Dong
Ronald Cron