[pve-devel] [PATCH qemu-server] blockdev: ovmf: use correct cache mode for EFI disk

[Friedrich Weber]

On 28/07/2025 10:42, Fiona Ebner wrote:
> As reported in the community forum [0], there was a regression for EFI
> disks with the switch to -blockdev.
> 
> [0]: https://forum.proxmox.com/threads/168619/post-786114
> 
> Fixes: 1d0818d6 ("ovmf: add support for using blockdev")
> Signed-off-by: Fiona Ebner <f.ebner at proxmox.com>
> ---

Tested-by: Friedrich Weber <f.weber at proxmox.com>

- created an OVMF VM with its EFI disk on an RBD storage with KRBD enabled

- with qemu-server=9.0.8, after starting the VM spends ~8 seconds in the
"Guest has not initialized the display (yet)" stage before booting

- with this patch on top, the VM boots immediately