From: Dave Hansen <dave.hansen@intel.com>
To: Jarkko Sakkinen <jarkko@kernel.org>, Shuah Khan <shuah@kernel.org>
Cc: linux-kselftest@vger.kernel.org, linux-sgx@vger.kernel.org,
Reinette Chatre <reinette.chatre@intel.com>,
Borislav Petkov <bp@alien8.de>,
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>,
Jonathan Corbet <corbet@lwn.net>,
linux-kernel@vger.kernel.org, linux-doc@vger.kernel.org
Subject: Re: [PATCH 1/4] x86/sgx: Add sgx_nr_all_pages to the debugfs
Date: Tue, 6 Jul 2021 07:56:40 -0700 [thread overview]
Message-ID: <b8a31e6e-90e8-f93f-e6b2-e72801fb31e4@intel.com> (raw)
In-Reply-To: <20210705143652.116125-2-jarkko@kernel.org>
On 7/5/21 7:36 AM, Jarkko Sakkinen wrote:
> Create /sys/kernel/debug/x86/sgx_nr_all_pages, which reports total
> number of EPC pages available in the system.
Could we flesh this out a bit, please?
What's the value here when userspace could just re-enumerate the EPC
size from CPUID?
I'd really appreciate if we could draw parallels between these additions
to the "SGX VM" and their analogs in the "core VM". In this case, I
think the closest analog is probably "MemTotal" in /proc/meminfo.
Second, how is this going to be used?
Third, is this going to be the ABI forever?
next prev parent reply other threads:[~2021-07-06 14:56 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20210705143652.116125-1-jarkko@kernel.org>
2021-07-05 14:36 ` [PATCH 1/4] x86/sgx: Add sgx_nr_all_pages to the debugfs Jarkko Sakkinen
2021-07-06 14:56 ` Dave Hansen [this message]
2021-07-06 15:39 ` Greg KH
2021-07-06 22:08 ` Jarkko Sakkinen
2021-07-05 14:36 ` [PATCH 2/4] selftests/sgx: Fix Q1 and Q2 calculation in sigstruct.c Jarkko Sakkinen
2021-07-06 20:53 ` Dave Hansen
2021-07-06 23:52 ` Jarkko Sakkinen
2021-07-05 14:36 ` [PATCH 3/4] selftests/sgx: Assign source for each segment Jarkko Sakkinen
2021-07-05 14:36 ` [PATCH 4/4] selftests/sgx: Trigger the reclaimer and #PF handler Jarkko Sakkinen
2021-07-06 18:34 ` Reinette Chatre
2021-07-06 23:50 ` Jarkko Sakkinen
2021-07-07 0:10 ` Reinette Chatre
2021-07-07 9:17 ` Jarkko Sakkinen
2021-07-07 15:02 ` Reinette Chatre
2021-07-07 20:50 ` Jarkko Sakkinen
2021-07-07 21:20 ` Reinette Chatre
2021-07-09 16:22 ` Jarkko Sakkinen
2021-07-07 21:20 ` Dave Hansen
2021-07-09 16:25 ` Jarkko Sakkinen
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