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Message-ID: <D5A4D31B-4A37-48B7-8EBC-C8A4062B4813@alien8.de> Date: Thu, 30 May 2024 19:06:12 +0200 From: Borislav Petkov <bp@...en8.de> To: Tom Lendacky <thomas.lendacky@....com> CC: linux-kernel@...r.kernel.org, x86@...nel.org, linux-coco@...ts.linux.dev, svsm-devel@...onut-svsm.dev, Thomas Gleixner <tglx@...utronix.de>, Ingo Molnar <mingo@...hat.com>, Dave Hansen <dave.hansen@...ux.intel.com>, "H. Peter Anvin" <hpa@...or.com>, Andy Lutomirski <luto@...nel.org>, Peter Zijlstra <peterz@...radead.org>, Dan Williams <dan.j.williams@...el.com>, Michael Roth <michael.roth@....com>, Ashish Kalra <ashish.kalra@....com> Subject: Re: [PATCH v4 09/15] x86/sev: Provide guest VMPL level to userspace On May 28, 2024 11:08:35 PM GMT+02:00, Tom Lendacky <thomas.lendacky@....com> wrote: >I can move it there. Or what about creating a coco folder under /sys/kernel/? This would then create /sys/kernel/coco/sev/? > Sysfs hierarchy is special - can't just add stuff willy nilly. This doc hints at that: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/Documentation/filesystems/sysfs.rst And then those things get documented here: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/Documentation/ABI and supported forever and ever until the end of time. So the usage needs to be precisely documented and weighed whether we really need it... Thx. -- Sent from a small device: formatting sucks and brevity is inevitable.
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