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From: Laurent GUERBY <laurent@guerby.net>
To: Proxmox VE development discussion <pve-devel@lists.proxmox.com>
Subject: Re: [pve-devel] [PATCH qemu-server 14/16] introduce QSD module for qemu-storage-daemon functionality
Date: Mon, 20 Oct 2025 10:47:38 +0200	[thread overview]
Message-ID: <5eeef6c68d22ab2a6882ba3ee1bb852b1ae31108.camel@guerby.net> (raw)
In-Reply-To: <20251014143946.160679-15-f.ebner@proxmox.com>

On Tue, 2025-10-14 at 16:39 +0200, Fiona Ebner wrote:
> For now, supports creating FUSE exports based on Proxmox VE drive
> definitions. NBD exports could be added later. In preparation to allow
> qcow2 for TPM state volumes. A QEMU storage daemon instance is
> associated to a given VM.

Hi,

I wonder if this addition of qemu-storage-daemon with fuse would be
able to solve the following issue I just opened:

https://bugzilla.proxmox.com/show_bug.cgi?id=6953

"cannot set set-require-min-compat-client to reef, luminous clients
from kernel rbd due to VM with TPM /dev/rbd"

The rbd kernel module feature is stuck to luminous and swtpm use of
kernel /dev/rbd limits the usable features of the whole proxmox/ceph
cluster as soon as a VM with TPM is created on the cluster.

If possible using qemu-storage-daemon to export the rbd image to swtpm
would still allow proxmox to leave the TPM disk on ceph while
benefiting from recent ceph features.

Sincerely,

Laurent GUERBY

PS: ZFS over iSCSI isn't usable for TPM as well
https://bugzilla.proxmox.com/show_bug.cgi?id=3662
TPM disfunctional with ZFS over iSCSI

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  parent reply	other threads:[~2025-10-20  8:56 UTC|newest]

Thread overview: 28+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-10-14 14:39 [pve-devel] [PATCH-SERIES qemu/swtpm/storage/qemu-server 00/16] fix #4693: drive: allow non-raw image formats for TPM state drive Fiona Ebner
2025-10-14 14:39 ` [pve-devel] [PATCH qemu 01/16] d/rules: enable fuse Fiona Ebner
2025-10-17 13:09   ` Daniel Kral
2025-10-17 14:03     ` Fiona Ebner
2025-10-14 14:39 ` [pve-devel] [PATCH swtpm 02/16] swtpm setup: file: always just clear header rather than unlinking Fiona Ebner
2025-10-14 14:39 ` [pve-devel] [PATCH storage 03/16] common: add pve-vm-image-format standard option for VM image formats Fiona Ebner
2025-10-14 14:39 ` [pve-devel] [PATCH qemu-server 04/16] tests: cfg2cmd: remove invalid mocking of qmp_cmd Fiona Ebner
2025-10-14 14:39 ` [pve-devel] [PATCH qemu-server 05/16] migration: offline volumes: drop deprecated special casing for TPM state Fiona Ebner
2025-10-14 14:39 ` [pve-devel] [PATCH qemu-server 06/16] qmp client: better abstract peer in preparation for qemu-storage-daemon Fiona Ebner
2025-10-17 12:38   ` Daniel Kral
2025-10-17 13:36     ` Fiona Ebner
2025-10-14 14:39 ` [pve-devel] [PATCH qemu-server 07/16] monitor: qmp: precise error message by logging peer type Fiona Ebner
2025-10-14 14:39 ` [pve-devel] [PATCH qemu-server 08/16] helpers: add functions for qemu-storage-daemon instances Fiona Ebner
2025-10-14 14:39 ` [pve-devel] [PATCH qemu-server 09/16] monitor: qmp: allow 'qsd' peer type for qemu-storage-daemon Fiona Ebner
2025-10-14 14:39 ` [pve-devel] [PATCH qemu-server 10/16] monitor: align interface of qmp_cmd() with other helpers Fiona Ebner
2025-10-14 14:39 ` [pve-devel] [PATCH qemu-server 11/16] machine: include +pve version when getting installed machine version Fiona Ebner
2025-10-14 14:39 ` [pve-devel] [PATCH qemu-server 12/16] blockdev: support attaching to qemu-storage-daemon Fiona Ebner
2025-10-14 14:39 ` [pve-devel] [PATCH qemu-server 13/16] blockdev: attach: also return whether attached blockdev is read-only Fiona Ebner
2025-10-14 14:39 ` [pve-devel] [PATCH qemu-server 14/16] introduce QSD module for qemu-storage-daemon functionality Fiona Ebner
2025-10-17 13:08   ` Daniel Kral
2025-10-17 14:46     ` Fiona Ebner
2025-10-20  8:47   ` Laurent GUERBY [this message]
2025-10-20  9:49     ` Fiona Ebner
2025-10-20 10:00       ` Fiona Ebner
2025-10-20 11:27       ` Laurent GUERBY
2025-10-14 14:39 ` [pve-devel] [PATCH qemu-server 15/16] tpm: support non-raw volumes via FUSE exports for swtpm Fiona Ebner
2025-10-14 14:39 ` [pve-devel] [PATCH qemu-server 16/16] fix #4693: drive: allow non-raw image formats for TPM state drive Fiona Ebner
2025-10-17 13:17 ` [pve-devel] [PATCH-SERIES qemu/swtpm/storage/qemu-server 00/16] " Daniel Kral

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