From: Fiona Ebner <f.ebner@proxmox.com>
To: Proxmox VE development discussion <pve-devel@lists.proxmox.com>
Cc: Drew Green <agreenbhm@gmail.com>
Subject: Re: [pve-devel] [PATCH qemu-server 1/1] QemuServer.pm: add support for storing VM memory in /dev/shm
Date: Wed, 14 Jan 2026 13:53:04 +0100 [thread overview]
Message-ID: <d9e3597a-b492-46e5-95b7-434ee94924e1@proxmox.com> (raw)
In-Reply-To: <mailman.1348.1763589054.362.pve-devel@lists.proxmox.com>
Hi,
Am 19.11.25 um 10:50 PM schrieb Drew Green via pve-devel:
> PVE supports the VM option "ivshmem" which creates a memory-backed file on
> the host operating system in /dev/shm to allow sharing resources between
> the guest and host and other guests. There is currently no support for
> utilizing the Qemu feature to make the guest's system memory available via
> the filesystem, which can be useful for experimentation and testing
> purposes. This patch adds an additional boolean option to the existing
> "ivshmem" configuration called "ram", which when set to 1 will store the
> guest's memory in the same location in /dev/shm that "ivshmem" normally
> would. Additional logic is added to support that option, such as adding an
> additional "-machine" argument required for this and excluding the
> "-device" argument normally required for traditional "ivshmem".
yes, it is a rather niche use case. You can also add the machine flag
and object via custom '-args' in the VM configuration. Would using that
instead work for you? If yes, I'd rather postpone this, but feel free to
open a feature request on the bugzilla (referring back to your patch),
so we can better track interest from other users.
For completeness, regarding the patch submission: please use 'git
format-patch' to generate the email. And we'd also need a signed CLA and
a Signed-off-by trailer to be able to accept your patch. For details,
see: https://pve.proxmox.com/wiki/Developer_Documentation
Best Regards,
Fiona
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prev parent reply other threads:[~2026-01-14 12:53 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-11-19 21:50 Drew Green via pve-devel
2026-01-14 12:53 ` Fiona Ebner [this message]
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