Re: [Qemu-devel] Para-virtualized ram-based filesystem?

[Avi Kivity]

On 04/16/2011 02:58 AM, Ritchie, Stuart wrote:
> >
> >You can do this with ivshmem today.  You give it a path to a shared
> >memory file, and then there's a path in sysfs that you can mmap() in
> >userspace in the guest.
>
> Please correct me if I am wrong, but with ivshmem you must to manage your
> world within a single, fixed size region.  I appreciate the simplicity of
> mapping the whole region all in one go, but our requirements are a bit
> different.  Even if you could pass multiple -device ivshmem instances,
> it's still a fixed environment.  Right?

You could place a read-only filesystem (say iso9660) in the region and 
mount it; it will then appear as a complete filesystem.

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