linux-kernel - Re: [tip: x86/core] x86/ibt: Implement FineIBT-BHI mitigation

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Message-ID: <CANiq72mcCEbeWb-RAXLcWRnJms2LA6xV=QqQ5=N3ii=3TC89fw@mail.gmail.com>
Date: Tue, 11 Mar 2025 20:41:29 +0100
From: Miguel Ojeda <miguel.ojeda.sandonis@...il.com>
To: Ramon de C Valle <rcvalle@...gle.com>
Cc: Peter Zijlstra <peterz@...radead.org>, Matthew Maurer <mmaurer@...gle.com>, 
	linux-kernel@...r.kernel.org, ojeda@...nel.org, 
	linux-tip-commits@...r.kernel.org, 
	Scott Constable <scott.d.constable@...el.com>, Ingo Molnar <mingo@...nel.org>, 
	Kees Cook <kees@...nel.org>, x86@...nel.org, Sami Tolvanen <samitolvanen@...gle.com>, 
	Alice Ryhl <aliceryhl@...gle.com>
Subject: Re: [tip: x86/core] x86/ibt: Implement FineIBT-BHI mitigation

On Tue, Mar 11, 2025 at 8:09 PM Ramon de C Valle <rcvalle@...gle.com> 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