Ray :
Regarding the OPROM skipping :
Current edk2\MdeModulePkg\Bus\Pci\PciBusDxe\PciEnumeratorSupport.c PciSearchDevice()->UpdatePciInfo() doesn’t consider Specific Type Flag to skip
the device OPROM (do not probe option ROM Bar)
Also, in GetOpRomInfo() also doesn’t have a check to skip the device bar. Because of the current implementation, there is no other way other than
overriding PCIBUS Driver.
Please correct me if the understanding is wrong.
Regarding the Device enumeration skipping :
As you said if modification done to return error status after PreprocessController () change will work for the devices that needs to be skipped after
probing.
But if we want to skip the device before probing itself then edk2\MdeModulePkg\Bus\Pci\PciBusDxe\PciLib.c PreprocessController() won’t work.
Thank you
-Manic
From: Ni, Ray <ray.ni@intel.com>
Sent: Friday, June 18, 2021 2:11 AM
To: devel@edk2.groups.io; Manickavasakam Karpagavinayagam <manickavasakamk@ami.com>; Kinney, Michael D <michael.d.kinney@intel.com>; gaoliming <gaoliming@byosoft.com.cn>
Cc: Harikrishna Doppalapudi <Harikrishnad@ami.com>
Subject: RE: [EXTERNAL] 回复: [edk2-devel] [edk2-platforms] [PATCH V1 0/2] Support for TiogaPass Platform and Override generic PciBus
Driver with
To skip loading an option rom for certain devices, can you use IncompatiblePciDevice->CheckDevice()?
For skipping enumerating a certain device, we could change PciBus to skip enumerating if gPciPlatformProtocol->PlatformPrepController() returns error status for that device.
Do you think this solution is feasible to you?
Thanks,
Ray
From:
devel@edk2.groups.io <devel@edk2.groups.io>
On Behalf Of manickavasakam karpagavinayagam
Sent: Friday, June 18, 2021 12:41 AM
To: Kinney, Michael D <michael.d.kinney@intel.com>;
devel@edk2.groups.io; gaoliming <gaoliming@byosoft.com.cn>; Ni, Ray <ray.ni@intel.com>
Cc: DOPPALAPUDI, HARIKRISHNA <harikrishnad@ami.com>
Subject: Re: [EXTERNAL] 回复: [edk2-devel] [edk2-platforms] [PATCH V1 0/2] Support for TiogaPass Platform and Override generic PciBus
Driver with
Mike :
During PCI Bus enumeration, we need to skip SPI Controller (because of a silicon sighting) or else any SET variable asserts.
Also, need to skip a specific MLX card UEFI OPROM or else will see CPU exception.
We checked the PCIBUS driver code flow and there is no generic hooks to skip enumerating a device and to override the OPROM contents.
To avoid overriding the PCIBUS driver with platform instance, we can have PciBus Hooks at various places in PCIBUS driver to skip the device from
enumeration, overriding the OPROM contents etc..
Ex : MdeModulePkg\Bus\Pci\PciBusDxe\PciLib.c PciScanBus()
for (Device = 0; Device <= PCI_MAX_DEVICE; Device++) {
TempReservedBusNum = 0;
for (Func = 0; Func <= PCI_MAX_FUNC; Func++) {
//
// Check to see whether a pci device is present
//
Status = PciDevicePresent (
PciRootBridgeIo,
&Pci,
StartBusNumber,
Device,
Func
);
if (EFI_ERROR (Status) && Func == 0) {
//
// go to next device if there is no Function 0
//
break;
}
if (EFI_ERROR (Status)) {
continue;
}
Status = PciOemPlatformHooks(&Pci, isPciSkipDevice, &Pci, &StartBusNumber, &Device, &Func);
if(EFI_ERROR(Status))
{
if(Status==EFI_UNSUPPORTED){
Status=EFI_SUCCESS;
} else ASSERT_EFI_ERROR(Status);
}
else
{
DEBUG((DEBUG_INFO,"Device @ [B%X|D%X|F%X], VID=%X, DID=%X SKIPPED from enumeration.\n\n",
StartBusNumber, Device, Func,
Pci.Hdr.VendorId,Pci.Hdr.DeviceId));
continue;
}
//
// Get the PCI device information
//
Status = PciSearchDevice (
Bridge,
&Pci,
StartBusNumber,
Device,
Func,
&PciDevice
);
if (EFI_ERROR (Status)) {
continue;
}
Thank you
-Manic
From: Kinney, Michael D <michael.d.kinney@intel.com>
Sent: Thursday, June 17, 2021 11:19 AM
To: devel@edk2.groups.io; Manickavasakam Karpagavinayagam <manickavasakamk@ami.com>; gaoliming <gaoliming@byosoft.com.cn>;
Ni, Ray <ray.ni@intel.com>; Kinney, Michael D <michael.d.kinney@intel.com>
Cc: Harikrishna Doppalapudi <Harikrishnad@ami.com>
Subject: RE: [EXTERNAL] 回复: [edk2-devel] [edk2-platforms] [PATCH V1 0/2] Support for TiogaPass Platform and Override generic PciBus
Driver with
Has the reason for the PciBusDxe override been discussed with the PciBusDxe maintainer?
What feature would need to be added to PciBusDxe to accommodate the use case?
Mike
From:
devel@edk2.groups.io <devel@edk2.groups.io>
On Behalf Of manickavasakam karpagavinayagam
Sent: Thursday, June 17, 2021 7:56 AM
To: gaoliming <gaoliming@byosoft.com.cn>;
devel@edk2.groups.io
Cc: DOPPALAPUDI, HARIKRISHNA <harikrishnad@ami.com>
Subject: Re: [EXTERNAL] 回复: [edk2-devel] [edk2-platforms] [PATCH
V1 0/2] Support for TiogaPass Platform and Override generic PciBus Driver with
Liming :
Below email is the cover letter and this patch series has two changes. Sure next time, will add more comments in the cover letter also.
Please refer the attached email and it has information about the PCIBUS override changes. PCIBUS override is done based on the platform sighting and
it can’t be generic.
Thank you
-Manic
From: gaoliming <gaoliming@byosoft.com.cn>
Sent: Wednesday, June 16, 2021 10:56 PM
To: devel@edk2.groups.io; Manickavasakam Karpagavinayagam <manickavasakamk@ami.com>
Subject: [EXTERNAL] 回复: [edk2-devel] [edk2-platforms] [PATCH V1 0/2] Support for TiogaPass Platform and Override generic PciBus
Driver with
**CAUTION: The e-mail below is from an external
source. Please exercise caution before opening attachments, clicking links, or following guidance.**
Please follow
https://github.com/tianocore/tianocore.github.io/wiki/Commit-Message-Format to update the commit message format.
And, for the override PciBus module, can you give more detail why need to override PciBus? Is it possible to update Edk2 MdeModulePkg PciBus to meet the platform requirement?
Thanks
Liming
发件人:
devel@edk2.groups.io <devel@edk2.groups.io>
代表 manickavasakam karpagavinayagam
发送时间: 2021年6月17日 7:05
收件人: devel@edk2.groups.io
主题: [edk2-devel] [edk2-platforms] [PATCH V1 0/2] Support for TiogaPass Platform and Override generic PciBus Driver with
Add BoardTiogaPass packages to support TiogaPass Platform Enabled Network, ISCSI,IPMI, SMBIOS, Performance Measurement
Remove AST2500 UEFI option ROM driver from PurleyOpenBoardPkg
AST2500 UEFI option ROM move to edk2-non-osi ASpeedGopBinPkg Update copyright headers
manickavasakam karpagavinayagam (2):
PurleyOpenBoardPkg : Support for TiogaPass Platform
PurleyOpenBoardPkg : Override generic PciBus Driver with Platform
specific instance of PciBus driver.
.../IpmiFeaturePkg/GenericIpmi/Dxe/IpmiInit.c | 8 +-
.../Acpi/BoardAcpiDxe/AmlOffsetTable.c | 453 +-
.../Acpi/BoardAcpiDxe/BoardAcpiDxeDsdt.c | 3 +
.../BoardTiogaPass/CoreDxeInclude.dsc | 168 +
.../BoardTiogaPass/CoreUefiBootInclude.fdf | 82 +
.../BoardTiogaPass/GitEdk2MinTiogaPass.bat | 93 +
.../BasePlatformHookLib/BasePlatformHookLib.c | 389 +
.../BasePlatformHookLib.inf | 36 +
.../BoardAcpiLib/DxeBoardAcpiTableLib.c | 36 +
.../BoardAcpiLib/DxeBoardAcpiTableLib.inf | 40 +
.../BoardAcpiLib/DxeTiogaPassAcpiTableLib.c | 53 +
.../BoardAcpiLib/SmmBoardAcpiEnableLib.c | 62 +
.../BoardAcpiLib/SmmBoardAcpiEnableLib.inf | 41 +
.../BoardAcpiLib/SmmSiliconAcpiEnableLib.c | 120 +
.../BoardAcpiLib/SmmTiogaPassAcpiEnableLib.c | 37 +
.../Library/BoardInitLib/AllLanesEparam.c | 44 +
.../Library/BoardInitLib/GpioTable.c | 296 +
.../Library/BoardInitLib/IioBifur.c | 70 +
.../BoardInitLib/PeiBoardInitPostMemLib.c | 46 +
.../BoardInitLib/PeiBoardInitPostMemLib.inf | 37 +
.../BoardInitLib/PeiBoardInitPreMemLib.c | 112 +
.../BoardInitLib/PeiBoardInitPreMemLib.inf | 69 +
.../Library/BoardInitLib/PeiTiogaPassDetect.c | 28 +
.../BoardInitLib/PeiTiogaPassInitLib.h | 18 +
.../BoardInitLib/PeiTiogaPassInitPostMemLib.c | 86 +
.../BoardInitLib/PeiTiogaPassInitPreMemLib.c | 638 ++
.../Library/BoardInitLib/UsbOC.c | 46 +
.../Library/PeiReportFvLib/PeiReportFvLib.c | 138 +
.../Library/PeiReportFvLib/PeiReportFvLib.inf | 51 +
.../BoardTiogaPass/OpenBoardPkg.dsc | 245 +
.../BoardTiogaPass/OpenBoardPkg.fdf | 600 ++
.../BoardTiogaPass/PlatformPkgBuildOption.dsc | 84 +
.../BoardTiogaPass/PlatformPkgConfig.dsc | 58 +
.../BoardTiogaPass/PlatformPkgPcd.dsc | 392 ++
.../BoardTiogaPass/StructureConfig.dsc | 6236 +++++++++++++++++
.../BoardTiogaPass/__init__.py | 0
.../PurleyOpenBoardPkg/BoardTiogaPass/bld.bat | 139 +
.../BoardTiogaPass/build_board.py | 195 +
.../BoardTiogaPass/build_config.cfg | 34 +
.../BoardTiogaPass/logo.txt | 10 +
.../BoardTiogaPass/postbuild.bat | 96 +
.../BoardTiogaPass/prebuild.bat | 213 +
.../Ipmi/Library/IpmiLibKcs/IpmiLibKcs.inf | 10 +-
.../IpmiPlatformHookLib.inf | 6 +-
.../Include/Guid/PchRcVariable.h | 6 +
.../Include/Guid/SetupVariable.h | 15 +-
.../Intel/PurleyOpenBoardPkg/OpenBoardPkg.dec | 1 +
.../Bus/Pci/PciBusDxe/ComponentName.c | 170 +
.../Bus/Pci/PciBusDxe/ComponentName.h | 146 +
.../MdeModulePkg/Bus/Pci/PciBusDxe/PciBus.c | 460 ++
.../MdeModulePkg/Bus/Pci/PciBusDxe/PciBus.h | 396 ++
.../Bus/Pci/PciBusDxe/PciBusDxe.inf | 112 +
.../Bus/Pci/PciBusDxe/PciBusDxe.uni | 16 +
.../Bus/Pci/PciBusDxe/PciBusDxeExtra.uni | 14 +
.../Bus/Pci/PciBusDxe/PciCommand.c | 267 +
.../Bus/Pci/PciBusDxe/PciCommand.h | 232 +
.../Bus/Pci/PciBusDxe/PciDeviceSupport.c | 1056 +++
.../Bus/Pci/PciBusDxe/PciDeviceSupport.h | 266 +
.../Bus/Pci/PciBusDxe/PciDriverOverride.c | 188 +
.../Bus/Pci/PciBusDxe/PciDriverOverride.h | 83 +
.../Bus/Pci/PciBusDxe/PciEnumerator.c | 2210 ++++++
.../Bus/Pci/PciBusDxe/PciEnumerator.h | 515 ++
.../Bus/Pci/PciBusDxe/PciEnumeratorSupport.c | 2885 ++++++++ .../Bus/Pci/PciBusDxe/PciEnumeratorSupport.h | 480 ++
.../Bus/Pci/PciBusDxe/PciHotPlugSupport.c | 484 ++
.../Bus/Pci/PciBusDxe/PciHotPlugSupport.h | 205 +
.../MdeModulePkg/Bus/Pci/PciBusDxe/PciIo.c | 2087 ++++++
.../MdeModulePkg/Bus/Pci/PciBusDxe/PciIo.h | 660 ++
.../MdeModulePkg/Bus/Pci/PciBusDxe/PciLib.c | 1809 +++++
.../MdeModulePkg/Bus/Pci/PciBusDxe/PciLib.h | 179 +
.../Bus/Pci/PciBusDxe/PciOptionRomSupport.c | 776 ++
.../Bus/Pci/PciBusDxe/PciOptionRomSupport.h | 136 +
.../Bus/Pci/PciBusDxe/PciPowerManagement.c | 82 +
.../Bus/Pci/PciBusDxe/PciPowerManagement.h | 28 +
.../Bus/Pci/PciBusDxe/PciResourceSupport.c | 2292 ++++++
.../Bus/Pci/PciBusDxe/PciResourceSupport.h | 456 ++
.../Bus/Pci/PciBusDxe/PciRomTable.c | 135 +
.../Bus/Pci/PciBusDxe/PciRomTable.h | 48 +
Platform/Intel/build.cfg | 2 +
Platform/Intel/build_bios.py | 3 +-
80 files changed, 30278 insertions(+), 240 deletions(-) create mode 100644 Platform/Intel/PurleyOpenBoardPkg/BoardTiogaPass/CoreDxeInclude.dsc
create mode 100644 Platform/Intel/PurleyOpenBoardPkg/BoardTiogaPass/CoreUefiBootInclude.fdf
create mode 100644 Platform/Intel/PurleyOpenBoardPkg/BoardTiogaPass/GitEdk2MinTiogaPass.bat
create mode 100644 Platform/Intel/PurleyOpenBoardPkg/BoardTiogaPass/Library/BasePlatformHookLib/BasePlatformHookLib.c
create mode 100644 Platform/Intel/PurleyOpenBoardPkg/BoardTiogaPass/Library/BasePlatformHookLib/BasePlatformHookLib.inf
create mode 100644 Platform/Intel/PurleyOpenBoardPkg/BoardTiogaPass/Library/BoardAcpiLib/DxeBoardAcpiTableLib.c
create mode 100644 Platform/Intel/PurleyOpenBoardPkg/BoardTiogaPass/Library/BoardAcpiLib/DxeBoardAcpiTableLib.inf
create mode 100644 Platform/Intel/PurleyOpenBoardPkg/BoardTiogaPass/Library/BoardAcpiLib/DxeTiogaPassAcpiTableLib.c
create mode 100644 Platform/Intel/PurleyOpenBoardPkg/BoardTiogaPass/Library/BoardAcpiLib/SmmBoardAcpiEnableLib.c
create mode 100644 Platform/Intel/PurleyOpenBoardPkg/BoardTiogaPass/Library/BoardAcpiLib/SmmBoardAcpiEnableLib.inf
create mode 100644 Platform/Intel/PurleyOpenBoardPkg/BoardTiogaPass/Library/BoardAcpiLib/SmmSiliconAcpiEnableLib.c
create mode 100644 Platform/Intel/PurleyOpenBoardPkg/BoardTiogaPass/Library/BoardAcpiLib/SmmTiogaPassAcpiEnableLib.c
create mode 100644 Platform/Intel/PurleyOpenBoardPkg/BoardTiogaPass/Library/BoardInitLib/AllLanesEparam.c
create mode 100644 Platform/Intel/PurleyOpenBoardPkg/BoardTiogaPass/Library/BoardInitLib/GpioTable.c
create mode 100644 Platform/Intel/PurleyOpenBoardPkg/BoardTiogaPass/Library/BoardInitLib/IioBifur.c
create mode 100644 Platform/Intel/PurleyOpenBoardPkg/BoardTiogaPass/Library/BoardInitLib/PeiBoardInitPostMemLib.c
create mode 100644 Platform/Intel/PurleyOpenBoardPkg/BoardTiogaPass/Library/BoardInitLib/PeiBoardInitPostMemLib.inf
create mode 100644 Platform/Intel/PurleyOpenBoardPkg/BoardTiogaPass/Library/BoardInitLib/PeiBoardInitPreMemLib.c
create mode 100644 Platform/Intel/PurleyOpenBoardPkg/BoardTiogaPass/Library/BoardInitLib/PeiBoardInitPreMemLib.inf
create mode 100644 Platform/Intel/PurleyOpenBoardPkg/BoardTiogaPass/Library/BoardInitLib/PeiTiogaPassDetect.c
create mode 100644 Platform/Intel/PurleyOpenBoardPkg/BoardTiogaPass/Library/BoardInitLib/PeiTiogaPassInitLib.h
create mode 100644 Platform/Intel/PurleyOpenBoardPkg/BoardTiogaPass/Library/BoardInitLib/PeiTiogaPassInitPostMemLib.c
create mode 100644 Platform/Intel/PurleyOpenBoardPkg/BoardTiogaPass/Library/BoardInitLib/PeiTiogaPassInitPreMemLib.c
create mode 100644 Platform/Intel/PurleyOpenBoardPkg/BoardTiogaPass/Library/BoardInitLib/UsbOC.c
create mode 100644 Platform/Intel/PurleyOpenBoardPkg/BoardTiogaPass/Library/PeiReportFvLib/PeiReportFvLib.c
create mode 100644 Platform/Intel/PurleyOpenBoardPkg/BoardTiogaPass/Library/PeiReportFvLib/PeiReportFvLib.inf
create mode 100644 Platform/Intel/PurleyOpenBoardPkg/BoardTiogaPass/OpenBoardPkg.dsc
create mode 100644 Platform/Intel/PurleyOpenBoardPkg/BoardTiogaPass/OpenBoardPkg.fdf
create mode 100644 Platform/Intel/PurleyOpenBoardPkg/BoardTiogaPass/PlatformPkgBuildOption.dsc
create mode 100644 Platform/Intel/PurleyOpenBoardPkg/BoardTiogaPass/PlatformPkgConfig.dsc
create mode 100644 Platform/Intel/PurleyOpenBoardPkg/BoardTiogaPass/PlatformPkgPcd.dsc
create mode 100644 Platform/Intel/PurleyOpenBoardPkg/BoardTiogaPass/StructureConfig.dsc
create mode 100644 Platform/Intel/PurleyOpenBoardPkg/BoardTiogaPass/__init__.py
create mode 100644 Platform/Intel/PurleyOpenBoardPkg/BoardTiogaPass/bld.bat
create mode 100644 Platform/Intel/PurleyOpenBoardPkg/BoardTiogaPass/build_board.py
create mode 100644 Platform/Intel/PurleyOpenBoardPkg/BoardTiogaPass/build_config.cfg
create mode 100644 Platform/Intel/PurleyOpenBoardPkg/BoardTiogaPass/logo.txt
create mode 100644 Platform/Intel/PurleyOpenBoardPkg/BoardTiogaPass/postbuild.bat
create mode 100644 Platform/Intel/PurleyOpenBoardPkg/BoardTiogaPass/prebuild.bat
create mode 100644 Platform/Intel/PurleyOpenBoardPkg/Override/MdeModulePkg/Bus/Pci/PciBusDxe/ComponentName.c
create mode 100644 Platform/Intel/PurleyOpenBoardPkg/Override/MdeModulePkg/Bus/Pci/PciBusDxe/ComponentName.h
create mode 100644 Platform/Intel/PurleyOpenBoardPkg/Override/MdeModulePkg/Bus/Pci/PciBusDxe/PciBus.c
create mode 100644 Platform/Intel/PurleyOpenBoardPkg/Override/MdeModulePkg/Bus/Pci/PciBusDxe/PciBus.h
create mode 100644 Platform/Intel/PurleyOpenBoardPkg/Override/MdeModulePkg/Bus/Pci/PciBusDxe/PciBusDxe.inf
create mode 100644 Platform/Intel/PurleyOpenBoardPkg/Override/MdeModulePkg/Bus/Pci/PciBusDxe/PciBusDxe.uni
create mode 100644 Platform/Intel/PurleyOpenBoardPkg/Override/MdeModulePkg/Bus/Pci/PciBusDxe/PciBusDxeExtra.uni
create mode 100644 Platform/Intel/PurleyOpenBoardPkg/Override/MdeModulePkg/Bus/Pci/PciBusDxe/PciCommand.c
create mode 100644 Platform/Intel/PurleyOpenBoardPkg/Override/MdeModulePkg/Bus/Pci/PciBusDxe/PciCommand.h
create mode 100644 Platform/Intel/PurleyOpenBoardPkg/Override/MdeModulePkg/Bus/Pci/PciBusDxe/PciDeviceSupport.c
create mode 100644 Platform/Intel/PurleyOpenBoardPkg/Override/MdeModulePkg/Bus/Pci/PciBusDxe/PciDeviceSupport.h
create mode 100644 Platform/Intel/PurleyOpenBoardPkg/Override/MdeModulePkg/Bus/Pci/PciBusDxe/PciDriverOverride.c
create mode 100644 Platform/Intel/PurleyOpenBoardPkg/Override/MdeModulePkg/Bus/Pci/PciBusDxe/PciDriverOverride.h
create mode 100644 Platform/Intel/PurleyOpenBoardPkg/Override/MdeModulePkg/Bus/Pci/PciBusDxe/PciEnumerator.c
create mode 100644 Platform/Intel/PurleyOpenBoardPkg/Override/MdeModulePkg/Bus/Pci/PciBusDxe/PciEnumerator.h
create mode 100644 Platform/Intel/PurleyOpenBoardPkg/Override/MdeModulePkg/Bus/Pci/PciBusDxe/PciEnumeratorSupport.c
create mode 100644 Platform/Intel/PurleyOpenBoardPkg/Override/MdeModulePkg/Bus/Pci/PciBusDxe/PciEnumeratorSupport.h
create mode 100644 Platform/Intel/PurleyOpenBoardPkg/Override/MdeModulePkg/Bus/Pci/PciBusDxe/PciHotPlugSupport.c
create mode 100644 Platform/Intel/PurleyOpenBoardPkg/Override/MdeModulePkg/Bus/Pci/PciBusDxe/PciHotPlugSupport.h
create mode 100644 Platform/Intel/PurleyOpenBoardPkg/Override/MdeModulePkg/Bus/Pci/PciBusDxe/PciIo.c
create mode 100644 Platform/Intel/PurleyOpenBoardPkg/Override/MdeModulePkg/Bus/Pci/PciBusDxe/PciIo.h
create mode 100644 Platform/Intel/PurleyOpenBoardPkg/Override/MdeModulePkg/Bus/Pci/PciBusDxe/PciLib.c
create mode 100644 Platform/Intel/PurleyOpenBoardPkg/Override/MdeModulePkg/Bus/Pci/PciBusDxe/PciLib.h
create mode 100644 Platform/Intel/PurleyOpenBoardPkg/Override/MdeModulePkg/Bus/Pci/PciBusDxe/PciOptionRomSupport.c
create mode 100644 Platform/Intel/PurleyOpenBoardPkg/Override/MdeModulePkg/Bus/Pci/PciBusDxe/PciOptionRomSupport.h
create mode 100644 Platform/Intel/PurleyOpenBoardPkg/Override/MdeModulePkg/Bus/Pci/PciBusDxe/PciPowerManagement.c
create mode 100644 Platform/Intel/PurleyOpenBoardPkg/Override/MdeModulePkg/Bus/Pci/PciBusDxe/PciPowerManagement.h
create mode 100644 Platform/Intel/PurleyOpenBoardPkg/Override/MdeModulePkg/Bus/Pci/PciBusDxe/PciResourceSupport.c
create mode 100644 Platform/Intel/PurleyOpenBoardPkg/Override/MdeModulePkg/Bus/Pci/PciBusDxe/PciResourceSupport.h
create mode 100644 Platform/Intel/PurleyOpenBoardPkg/Override/MdeModulePkg/Bus/Pci/PciBusDxe/PciRomTable.c
create mode 100644 Platform/Intel/PurleyOpenBoardPkg/Override/MdeModulePkg/Bus/Pci/PciBusDxe/PciRomTable.h
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