Comment 18 for bug 1777338

OK, I grabbed commit 74899d92e66663dc7671a8017b3146dcd4735f3b "x86/xen: Add call of speculative_store_bypass_ht_init() to PV paths" from <email address hidden>:torvalds/linux.git and cherry-picked it on top of the tag Ubuntu-4.15.0-29.31, and built the kernel, and now it boots fine as dom0! I think that that patch fixes this bug.

How can I get this commit to be pulled into the main Ubuntu kernel development branch, to be released in the official kernel builds?