I think it makes sense to put Fdt to OvmfPkg. I suggest an Fdt folder and put all things there.

 

I also think we define Fdt feature in https://github.com/tianocore/edk2/blob/master/Maintainers.txt to add reviewer there to help review the code.

 

Thank you

Yao Jiewen

 

 

From: Chang, Abner (HPS SW/FW Technologist) <abner.chang@hpe.com>
Sent: Monday, September 6, 2021 7:09 PM
To: Yao, Jiewen <jiewen.yao@intel.com>; devel@edk2.groups.io; gaoliming <gaoliming@byosoft.com.cn>
Cc: 'Ard Biesheuvel' <ard.biesheuvel@arm.com>; Kinney, Michael D <michael.d.kinney@intel.com>; 'Leif Lindholm' <leif@nuviainc.com>; Ni, Ray <ray.ni@intel.com>; Schaefer, Daniel <daniel.schaefer@hpe.com>; 'Sunil V L' <sunilvl@ventanamicro.com>; 'Ard Biesheuvel' <ardb+tianocore@kernel.org>; 'Gerd Hoffmann' <kraxel@redhat.com>
Subject: RE: [edk2-devel] [RFC] RISC-V QEMU virtual package

 

Hi Jiewen,

We currently only use below modules from ArmVirtPkg,

Above modules are related to the extraction of the platform configuration from FDT. We also use ArmPkg/DriverArmPciCpuIoDxe,  we can have RISC-V instance of CpuIoDxe but still leverage PCD produced by FdtPciPcdProducerLib.

Another library is QemuFwCfgLib from ArmVirtPkg/Library, I think we can have RISC-V own instance because there is a one instance under OvmfPkg already.

 

Thanks

Abner

 

 

From: Yao, Jiewen [mailto:jiewen.yao@intel.com]
Sent: Monday, September 6, 2021 2:16 PM
To: devel@edk2.groups.io; Chang, Abner (HPS SW/FW Technologist) <abner.chang@hpe.com>; gaoliming <gaoliming@byosoft.com.cn>
Cc: 'Ard Biesheuvel' <ard.biesheuvel@arm.com>; Kinney, Michael D <michael.d.kinney@intel.com>; 'Leif Lindholm' <leif@nuviainc.com>; Ni, Ray <ray.ni@intel.com>; Schaefer, Daniel <daniel.schaefer@hpe.com>; 'Sunil V L' <sunilvl@ventanamicro.com>; 'Ard Biesheuvel' <ardb+tianocore@kernel.org>; 'Gerd Hoffmann' <kraxel@redhat.com>
Subject: RE: [edk2-devel] [RFC] RISC-V QEMU virtual package

 

Do you have a list of which module you want to move to Ovmf?

 

I think we can discuss case by case.

 

From: devel@edk2.groups.io <devel@edk2.groups.io> On Behalf Of Abner Chang
Sent: Monday, September 6, 2021 12:16 PM
To: gaoliming <gaoliming@byosoft.com.cn>; devel@edk2.groups.io
Cc: 'Ard Biesheuvel' <ard.biesheuvel@arm.com>; Kinney, Michael D <michael.d.kinney@intel.com>; 'Leif Lindholm' <leif@nuviainc.com>; Ni, Ray <ray.ni@intel.com>; Schaefer, Daniel <daniel.schaefer@hpe.com>; 'Sunil V L' <sunilvl@ventanamicro.com>; Yao, Jiewen <jiewen.yao@intel.com>; 'Ard Biesheuvel' <ardb+tianocore@kernel.org>; 'Gerd Hoffmann' <kraxel@redhat.com>
Subject: Re: [edk2-devel] [RFC] RISC-V QEMU virtual package

 

Thanks Liming. To have those modules under OvmfPkg also makes sense to me. See how others think of this.

 

Abner

 

From: gaoliming [mailto:gaoliming@byosoft.com.cn]
Sent: Monday, September 6, 2021 9:07 AM
To: devel@edk2.groups.io; Chang, Abner (HPS SW/FW Technologist) <abner.chang@hpe.com>
Cc: 'Ard Biesheuvel' <ard.biesheuvel@arm.com>; 'Michael D Kinney' <michael.d.kinney@intel.com>; 'Leif Lindholm' <leif@nuviainc.com>; ray.ni@intel.com; Schaefer, Daniel <daniel.schaefer@hpe.com>; 'Sunil V L' <sunilvl@ventanamicro.com>; jiewen.yao@intel.com; 'Ard Biesheuvel' <ardb+tianocore@kernel.org>; 'Gerd Hoffmann' <kraxel@redhat.com>
Subject: 回复: [edk2-devel] [RFC] RISC-V QEMU virtual package

 

Abner:

 If these modules are shared by ARM and RISC-V, they should not be ARM specific modules. I prefer to move them into OvmfPkg. Now, ArmVirtPkg also includes the modules from OvmfPkg.

 

 I also include OVMF package maintainers for this discussion.

 

Thanks

Liming

发件人: devel@edk2.groups.io <devel@edk2.groups.io> 代表 Abner Chang
发送时间: 2021年9月5日 11:15
收件人: devel@edk2.groups.io
抄送: Ard Biesheuvel <ard.biesheuvel@arm.com>; Michael D Kinney <michael.d.kinney@intel.com>; Leif Lindholm <leif@nuviainc.com>; ray.ni@intel.com; Liming Gao <gaoliming@byosoft.com.cn>; Schaefer, Daniel <daniel.schaefer@hpe.com>; Sunil V L <sunilvl@ventanamicro.com>
主题: [edk2-devel] [RFC] RISC-V QEMU virtual package

 

Hi all,

We currently have RISC-V edk2 OVMF package that can boot to Linux kernel on QEMU RISC-V virt platform.

First at all, we would like to create a folder RiscvVirtPkg under edk2 repo and integrated in the Platform CI build.

 

Second, RISC-V edk2 OVMF package leverages some edk2 libraries and drivers from ArmVirtPkg, such as FDT related modules for PCI bus, host bridge and etc. We would like to move those generic virtual drivers to

a common folder for ARM and RISC-V (I don’t think this way is necessary though). Or can we move those to just under OvmfPkg because OvmfPkg also provides some common drivers for the processor architectures.

Thoughts?

 

Thanks

Abner