Re: [edk2-devel] [PATCH 1/1] OvmfPkg/RiscVVirt/README.md: bring your own OpenSBI

["Andrei Warkentin" <andrei.warkentin@intel.com>]

This looks fine to me as far as an edit, but I didn't validate the commands.

Reviewed-by: Andrei Warkentin <andrei.warkentin@intel.com>

> -----Original Message-----
> From: Laszlo Ersek <lersek@redhat.com>
> Sent: Thursday, September 7, 2023 9:58 AM
> To: lersek@redhat.com; edk2-devel-groups-io <devel@edk2.groups.io>
> Cc: Warkentin, Andrei <andrei.warkentin@intel.com>; Ard Biesheuvel
> <ardb+tianocore@kernel.org>; Gerd Hoffmann <kraxel@redhat.com>; Yao,
> Jiewen <jiewen.yao@intel.com>; Justen, Jordan L
> <jordan.l.justen@intel.com>; Sunil V L <sunilvl@ventanamicro.com>
> Subject: [PATCH 1/1] OvmfPkg/RiscVVirt/README.md: bring your own
> OpenSBI
> 
> Explain how users can compose their pre-OS environment purely from
> binaries they've built themselves.
> 
> Cc: Andrei Warkentin <andrei.warkentin@intel.com>
> Cc: Ard Biesheuvel <ardb+tianocore@kernel.org>
> Cc: Gerd Hoffmann <kraxel@redhat.com>
> Cc: Jiewen Yao <jiewen.yao@intel.com>
> Cc: Jordan Justen <jordan.l.justen@intel.com>
> Cc: Sunil V L <sunilvl@ventanamicro.com>
> Signed-off-by: Laszlo Ersek <lersek@redhat.com>
> ---
> 
> Notes:
>     rendered version:
> 
>     https://github.com/lersek/edk2/tree/bring-your-own-
> opensbi/OvmfPkg/RiscVVirt#test-with-your-own-opensbi-binary
> 
>  OvmfPkg/RiscVVirt/README.md | 17 +++++++++++++++++
>  1 file changed, 17 insertions(+)
> 
> diff --git a/OvmfPkg/RiscVVirt/README.md
> b/OvmfPkg/RiscVVirt/README.md index 8c3ac37b802a..dbb40bbe89b0
> 100644
> --- a/OvmfPkg/RiscVVirt/README.md
> +++ b/OvmfPkg/RiscVVirt/README.md
> @@ -69,3 +69,20 @@ Below example shows how to boot openSUSE
> Tumbleweed E20.
>          -device virtio-net-pci,netdev=net0 \
>          -device virtio-blk-device,drive=hd0 \
>          -drive file=openSUSE-Tumbleweed-RISC-V-E20-
> efi.riscv64.raw,format=raw,id=hd0
> +
> +## Test with your own OpenSBI binary
> +Using the above QEMU command line, **RISCV_VIRT_CODE.fd** is
> launched
> +by the OpenSBI binary that is bundled with QEMU. You can build your own
> +OpenSBI binary as well:
> +
> +    OPENSBI_DIR=...
> +    git clone https://github.com/riscv/opensbi.git $OPENSBI_DIR
> +    make -C $OPENSBI_DIR \
> +        -j $(getconf _NPROCESSORS_ONLN) \
> +        CROSS_COMPILE=riscv64-linux-gnu- \
> +        PLATFORM=generic
> +
> +then specify that binary for QEMU, with the following additional
> +command line
> +option:
> +
> +    -bios $OPENSBI_DIR/build/platform/generic/firmware/fw_dynamic.bin


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