FYI
Out of a different discussion [1] I happened to learn about a kernel side fix [2] which unbreaks this case. It still would help to get the qmeu change landed, but the crashing guest is no more crashing with this.
Therefore I wonder if we should add a kernel task to backport that to the Focal kernel.
That being said, the issue there was a crash if you run SSBD without IBRS, was it a crash as well for you or was it a different symptom?
FYI
Out of a different discussion [1] I happened to learn about a kernel side fix [2] which unbreaks this case. It still would help to get the qmeu change landed, but the crashing guest is no more crashing with this.
Therefore I wonder if we should add a kernel task to backport that to the Focal kernel.
That being said, the issue there was a crash if you run SSBD without IBRS, was it a crash as well for you or was it a different symptom?
[1]: https:/ /bugs.launchpad .net/ubuntu/ +source/ qemu/+bug/ 1915063/ comments/ 35 /git.kernel. org/pub/ scm/linux/ kernel/ git/torvalds/ linux.git/ commit/ ?id=841c2be09fe 4f495fe5224952a 419bd8c7e5b455
[2]: https:/