Re: [tip: x86/core] x86/ibt: Implement FineIBT-BHI mitigation
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- Subject: Re: [tip: x86/core] x86/ibt: Implement FineIBT-BHI mitigation
- From: Miguel Ojeda <miguel.ojeda.sandonis@xxxxxxxxx>
- Date: Tue, 11 Mar 2025 20:41:29 +0100
- Cc: Peter Zijlstra <peterz@xxxxxxxxxxxxx>, Matthew Maurer <mmaurer@xxxxxxxxxx>, linux-kernel@xxxxxxxxxxxxxxx, ojeda@xxxxxxxxxx, linux-tip-commits@xxxxxxxxxxxxxxx, Scott Constable <scott.d.constable@xxxxxxxxx>, Ingo Molnar <mingo@xxxxxxxxxx>, Kees Cook <kees@xxxxxxxxxx>, x86@xxxxxxxxxx, Sami Tolvanen <samitolvanen@xxxxxxxxxx>, Alice Ryhl <aliceryhl@xxxxxxxxxx>
- In-reply-to: <CAOcBZOSPBsTvWFdpwE0-ZU76yMDGBEo3p9y614XYEu+ZSnQ6Sg@mail.gmail.com>
- References: <20250224124200.820402212@infradead.org> <174057447519.10177.9447726208823079202.tip-bot2@tip-bot2> <20250226195308.GA29387@noisy.programming.kicks-ass.net> <CANiq72=3ghFxy8E=AU9p+0imFxKr5iU3sd0hVUXed5BA+KjdNQ@mail.gmail.com> <20250310160242.GH19344@noisy.programming.kicks-ass.net> <CAOcBZOSPBsTvWFdpwE0-ZU76yMDGBEo3p9y614XYEu+ZSnQ6Sg@mail.gmail.com>
On Tue, Mar 11, 2025 at 8:09 PM Ramon de C Valle <rcvalle@xxxxxxxxxx> wrote:
>
> I've submitted a PR for it:
> https://github.com/rust-lang/rust/pull/138368. Let me know if you're
> able to give it a try.
Thanks Ramon, that was quick!
Left a comment there and linked it -- if you meant to ask Peter, then
I guess it would be easiest for him to use the first nightly that has
it as a `-Z` flag.
i.e. I think it is simple enough to land it as-is, especially if we
add the quick check I suggested.
Cheers,
Miguel
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