From: Borislav Petkov <bp@alien8.de>
To: Jarkko Sakkinen <jarkko@kernel.org>
Cc: linux-sgx@vger.kernel.org,
Dave Hansen <dave.hansen@linux.intel.com>,
Thomas Gleixner <tglx@linutronix.de>,
Ingo Molnar <mingo@redhat.com>,
x86@kernel.org, "H. Peter Anvin" <hpa@zytor.com>,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH v2 2/2] x86/sgx: Add sgx_nr_{all, free}_pages to the debugfs
Date: Thu, 8 Apr 2021 11:01:07 +0200 [thread overview]
Message-ID: <20210408090107.GE10192@zn.tnic> (raw)
In-Reply-To: <YG7EWDXmwC9ai38k@kernel.org>
On Thu, Apr 08, 2021 at 11:52:40AM +0300, Jarkko Sakkinen wrote:
> I think these attributes are quite useful information to have available so
> I'd go actually doing sysfs attributes and create
> Documentation/ABI/stable/sysfs-driver-sgx to document them.
testing/
This directory documents interfaces that are felt to be stable,
as the main development of this interface has been completed.
This sounds better for a start. From Documentation/ABI/README.
> Given that they would go then to the sysfs directory of the driver, then
> probably the legit names for the attributes ought to be:
>
> - nr_all_epc_pages
> - nr_free_epc_pages
>
> What do you think?
Sounds ok to me.
> PS. One useful case that I forgot to mention is that I use these to give
> idea what I gave EPC size in the BIOS. Now my EPC is set to 32 MB, and
> these report 20 MB of EPC pages. It's because other metadata (e.g. EPCM
> containing page attributes) is also stored in this area.
Just remember to put yourself in the user's shoes and think whether they
make sense to her/him.
Thx.
--
Regards/Gruss,
Boris.
https://people.kernel.org/tglx/notes-about-netiquette
next prev parent reply other threads:[~2021-04-08 9:01 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-04-05 23:26 [PATCH v2 1/2] x86/sgx: Do not update sgx_nr_free_pages in sgx_setup_epc_section() Jarkko Sakkinen
2021-04-05 23:26 ` [PATCH v2 2/2] x86/sgx: Add sgx_nr_{all, free}_pages to the debugfs Jarkko Sakkinen
2021-04-07 15:56 ` Borislav Petkov
2021-04-07 16:09 ` Jarkko Sakkinen
2021-04-07 16:15 ` Borislav Petkov
2021-04-08 8:52 ` Jarkko Sakkinen
2021-04-08 9:01 ` Borislav Petkov [this message]
2021-04-08 9:13 ` Jarkko Sakkinen
2021-04-08 9:32 ` Borislav Petkov
2021-04-08 16:27 ` Jarkko Sakkinen
2021-04-07 15:49 ` [PATCH v2 1/2] x86/sgx: Do not update sgx_nr_free_pages in sgx_setup_epc_section() Borislav Petkov
2021-04-07 16:03 ` Jarkko Sakkinen
2021-04-07 16:18 ` Borislav Petkov
2021-04-08 8:48 ` Jarkko Sakkinen
2021-04-08 8:56 ` Borislav Petkov
2021-04-08 9:22 ` Jarkko Sakkinen
2021-04-08 9:29 ` Borislav Petkov
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