On Wed, Nov 30, 2022 at 06:28:17PM +0000, James Morse wrote: > Hello! > > The first patch fixes an issue reported by Sami, where linux panic()s > when bringing secondary CPUs online. The problem was the Spectre > workarounds trying to allocate a new slot for mitigating KVM when > those pages are no longer writeable. > > While debugging that issue, I spotted the Spectre-BHB KVM mitigation was > over-riding the Spectre-v2 KVM Mitigation. It's supposed to happen the > other way round. > > The backports aren't the same as mainline because the spectre mitigation code > was totally rewritten for v5.10, and prior to that the KVM infrastructure > is very different. All now queued up, thanks. greg k-h
