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Subject: Memory sharing device
Hi, for our purposes we need to access host's memory (e.g. Vulkan buffers, but we also considering other things, like running all drivers in userspace) directly from a linux guest (Android). I implemented a device in QEMU and a linux driver for it: https://android.googlesource.com/kernel/goldfish/+/android-goldfish-4.14-dev/drivers/misc/goldfish_address_space.c https://android.googlesource.com/platform/external/qemu/+/emu-master-dev/hw/pci/goldfish_address_space.c during upstreaming the driver it was suggested that developing a virtio spec could be a better approach than inventing our specific driver and device. Could you please advise how to start? Thank you. Regards, Roman.
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