Re: qemu buster backport
On 6/14/20 12:47 PM, Chris Boot wrote:
> On 07/04/2020 10:20, Matt Taggart wrote:
>> Hi qemu package maintainers!
>> Please consider providing a backport of newer qemu to buster.
>> In particular I would like to be able to use the added support for
>> DISCARD in virtio-blk (added in 4.0). My VMs are running on top of
>> drbd+lvm+luks+mdadm and all those layers of the stack have discard
>> support in buster, so having newer qemu is the last piece needed to make
>> it work.
> This doesn't answer your query but is there a specific reason you're
> using virtio-blk rather than virtio-scsi? The latter has supported
> DISCARD for a long time and requires no specific guest kernel support;
> the latter requires a 5.0+ kernel in the guest.
There is issues around nested virt that are all cleaned up in 5.0 as
well, and also OpenStack recent versions are using features of 5.0 too.
So a Qemu 5.0 backport to Buster would be nice. I've been asked to
sponsor such an upload, but I would really prefer to have the Qemu
maintainers to take care of it. Please let me know.
Thomas Goirand (zigo)