Resizable BAR in Kernel 6.1

[Chris Smith]

Hi,

I was wondering if Resizable BAR support is planned to come to QEMU soon as it does now have a sysfs interface (commit 041bc24d867a2a577a06534d6d25e500b24a01ef) meaning that a protocol could be implemented for virtualizing it to the VM.

I am wondering if this is a feature being developed or planned to be developed in the near-future?

Sources:
https://wiki.archlinux.org/title/PCI_passthrough_via_OVMF#Code_43_while_Resizable_Bar_is_turned_on_in_the_bios
https://cdn.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1
https://github.com/qemu/qemu/commit/3412d8ec9810b819f8b79e8e0c6b87217c876e32