On Thu, Oct 27, 2022 at 01:48:01PM -0700, Suraj Jitindar Singh wrote: > This backport adds support for Retbleed and PBRSB mitigations for Intel parts. > > Some AMD parts are added to simplify context however support for IBPB or UNRET > is not included in this series. The reporting of whether a cpu is affected > should be correct however. > > Most patches applied cleanly or required only context changes, the major > difference between this series and upstream is the fact that the kvm entry > path is in inline asm in the 4.14 tree and so this had to be accommodated > in patches: > - x86/speculation: Fill RSB on vmexit for IBRS > - x86/speculation: Add RSB VM Exit protections > > This series is unsurprisingly very similar to that for the 5.4 backport [1]. > > Boot tested on a variety of Intel and AMD systems. > > Tested correct reporting of vulnerabilities and mitigation selection on Skylake, > Cascade Lake, Ice Lake and Zen3 parts. > > [1] https://lore.kernel.org/stable/20221003131038.12645-1-cascardo@xxxxxxxxxxxxx/ Note, you forgot to sign off on a lot of these patches. Whenever you submit a patch, you need to also do that as the patch came through you. I've queued these up now, and will go do a 4.14.y-rc release with just these in it to get some testing separate from other changes. thanks, greg k-h
