linux-kernel - Re: [PATCH v2 2/2] x86/sgx: Add sgx_nr_{all, free}

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Message-ID: <YG8u7BtcJ43Hao3t@kernel.org>
Date:   Thu, 8 Apr 2021 19:27:24 +0300
From:   Jarkko Sakkinen <jarkko@...nel.org>
To:     Borislav Petkov <bp@...en8.de>
Cc:     linux-sgx@...r.kernel.org,
        Dave Hansen <dave.hansen@...ux.intel.com>,
        Thomas Gleixner <tglx@...utronix.de>,
        Ingo Molnar <mingo@...hat.com>, x86@...nel.org,
        "H. Peter Anvin" <hpa@...or.com>, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 2/2] x86/sgx: Add sgx_nr_{all, free}_pages to the
 debugfs

On Thu, Apr 08, 2021 at 11:32:23AM +0200, Borislav Petkov wrote:
> On Thu, Apr 08, 2021 at 12:13:21PM +0300, Jarkko Sakkinen wrote:
> > Actually I think read-only sysctl attributes would be a better idea.
> 
> I still think debugfs is the right *start* for this: you play with them,
> see what makes sense and what not, tweak them, etc, and then you cast
> them in stone.

Yup. Also better to see what makes sense in the context of virtualization.
Too many (unknown) unknowns to make the right call.

> Not cast them in stone and see if anyone is even interested. So pls keep
> them in debugfs for now - you can always do whatever, later, when it
> turns out that those are useful.

I'll do that.

> Thx.
> 
> -- 
> Regards/Gruss,
>     Boris.
> 
> https://people.kernel.org/tglx/notes-about-netiquette

/Jarkko