On Fri, Dec 08, 2023 at 09:45:23AM +0000, Sánta, Márton (ext) via Users wrote:
Dear Users,
I tried out shared memory using libvirt. When I configure it in the XML
(ivshmem-plain), I have to provide a name for it and after starting the
VM I can see the appropriate file on the host in the /dev/shm/
directory. My problem is that I could not find any official
documentation about the usage of that shared memory. On the guest side,
I have found the PCI device related to it, but I do not know how to use
it. Is there any available command line tool to read from or write to
this memory or is it only possible with a user application? Could you
provide my what is the most common solution for this?
Hi,
ivshmem is something you probably want to use only if you have a
specific need. Maybe looking at other solutions would be more suitable.
In any case you can check out the documentation from QEMU here:
https://www.qemu.org/docs/master/specs/ivshmem-spec.html
Thank you in advance for your reply and help!
Best regards,
Márton Sánta
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