linux-kernel - Re: [PATCH] x86/ibt: Implement FineIBT

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Message-ID: <3edb387ea335085dcb6dd49f1d9c9ce6@overdrivepizza.com>
Date:   Tue, 18 Oct 2022 08:58:24 -0700
From:   Joao Moreira <joao@...rdrivepizza.com>
To:     David Laight <David.Laight@...lab.com>
Cc:     'Peter Zijlstra' <peterz@...radead.org>, x86@...nel.org,
        Kees Cook <keescook@...omium.org>,
        Sami Tolvanen <samitolvanen@...gle.com>,
        linux-kernel@...r.kernel.org, Mark Rutland <mark.rutland@....com>,
        Josh Poimboeuf <jpoimboe@...hat.com>
Subject: Re: [PATCH] x86/ibt: Implement FineIBT

> Does the hash value for kCFI only depend on the function type?
> Or is there something like a attribute that can also be included?

Hi David -- does this sound like what you are asking about?

https://github.com/ClangBuiltLinux/linux/issues/1736

If yes, then it is something in our todo list :) I think Sami is 
handling it.