I think you throw a some things together which don't belong together. The Open Device Website is a project from Sony for devs which build custom roms specific for Sony devices.
This project is named SODP and has nothing to do with GSIs at all. It's only relevant for you when you want Custom Roms for Sony Devices because then you need the oem SW binaries.
GSI/Treble instead are generic system images. To answer your question:
You don't need the oem SW Binaries from Sony for this GSI. For GSIs you only need a unlocked bootloader, the right GSI system image and vbmeta.
All other parts which you mentioned (vendor, dtbo etc) come with the stock Rom.
This is important information for me, thank you!!!
I thought "SW binaries" is something like main firmware without which no any Roms can work.
SONY:
Supported devices and functionality
On this page you’ll find the current status for specific functionalities on Open Devices’ platforms for the supported devices. In order for AOSP to run on Xperia devices, you need to add some device specific Software binaries that are provided on this website. These binaries could for example be hardware drivers that are needed for a certain chipset. Check out the links below to get both the code and binaries for each device.
You can also find links to all Sony’s device configurations on the Sonyxperiadev Github, link to the AOSP build guides and the Recovery mode key for supported devices.
So AOSP GSI doesn't use any (hardware drivers) from SW Binaries?,, so I understand right AOSP GSI that it has the base firmware implemented inside its own roms?
please excuse my bad English.
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