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Date: Wed, 14 Feb 2024 19:22:14 +0100
From: Petr =?UTF-8?B?VGVzYcWZw61r?= <petr@tesarici.cz>
To: Dave Hansen <dave.hansen@intel.com>
Cc: Petr Tesarik <petrtesarik@huaweicloud.com>, Jonathan Corbet
 <corbet@lwn.net>, Thomas Gleixner <tglx@linutronix.de>, Ingo Molnar
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 Roberto Sassu <roberto.sassu@huaweicloud.com>, Petr Tesarik
 <petr.tesarik1@huawei-partners.com>
Subject: Re: [PATCH v1 0/8] x86_64 SandBox Mode arch hooks
Message-ID: <20240214192214.78734652@meshulam.tesarici.cz>
In-Reply-To: <c424618c-d6c6-430a-8975-8851a617204e@intel.com>
References: <20240214113516.2307-1-petrtesarik@huaweicloud.com>
	<c424618c-d6c6-430a-8975-8851a617204e@intel.com>
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On Wed, 14 Feb 2024 06:52:53 -0800
Dave Hansen <dave.hansen@intel.com> wrote:

> On 2/14/24 03:35, Petr Tesarik wrote:
> > This patch series implements x86_64 arch hooks for the generic SandBox
> > Mode infrastructure.  
> 
> I think I'm missing a bit of context here.  What does one _do_ with
> SandBox Mode?  Why is it useful?

I see, I split the patch series into the base infrastructure and the
x86_64 implementation, but I forgot to merge the two recipient lists.
:-(

Anyway, in the long term I would like to work on gradual decomposition
of the kernel into a core part and many self-contained components.
Sandbox mode is a useful tool to enforce isolation.

In its current form, sandbox mode is too limited for that, but I'm
trying to find some balance between "publish early" and reaching a
feature level where some concrete examples can be shown. I'd rather
fail fast than maintain hundreds of patches in an out-of-tree branch
before submitting (and failing anyway).

Petr T