Ubuntu
qemu package

  1. Bug #1915063
  2. Comment #36

Comment 36 for bug 1915063

Revision history for this message
Christian Ehrhardt  (paelzer) wrote :

Thanks Babu/Igor for chiming in!

@Babu
That exposed STIBP but not IBRS - isn't that what you tried to solve (for userspace) in qemu via a v2 for the Rome chips?
=> https://lists.gnu.org/archive/html/qemu-devel/2021-03/msg01020.html

I was recently pinging that, as it wasn't merged into the qemu 6.0-rc
Do you have any more insight why this is held back still?

If I might ask - how does the kernel fix you referenced interact with this proposed qemu change?
Assumptions (please correct me):
1. with the qemu change and using that Rome-v2 it would ask to expose both features and no more crash (even on unfixed kernels)
2. with the kernel fix it will no more crash, even with an unfixed qemu?