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From: Jarkko Sakkinen <jarkko@kernel.org>
To: linux-sgx@vger.kernel.org
Cc: haitao.huang@intel.com, dan.j.williams@intel.com,
	dave.hansen@linux.intel.com, bp@alien8.de, tglx@linutronix.de,
	linux-kernel@vger.kernel.org, x86@kernel.org,
	Jarkko Sakkinen <jarkko@kernel.org>
Subject: [PATCH 0/3] Introduce version array structure: sgx_va
Date: Thu, 25 Feb 2021 00:20:46 +0200	[thread overview]
Message-ID: <20210224222049.240754-1-jarkko@kernel.org> (raw)

Introduce an xarray based version array (VA) structure: struct sgx_va.

The use of sgx_va can be later on extended to the following use cases:

- A global VA for reclaimed SECS pages.
- A global VA for reclaimed VA pages.

Testing done while developing the patch:

- With NUC7PJYH: https://www.intel.com/content/www/us/en/products/boards-kits/nuc/kits/nuc7pjyh.html
- seq 10000 | xargs -I {} -P10000 ./test_sgx > /dev/null
- The EPC size was set from BIOS to 32 MB.

Jarkko Sakkinen (3):
  x86/sgx: Move struct sgx_va_page creation to sgx_alloc_va_page()
  x86/sgx: Add a version array (VA) structure
  x86/sgx: Use sgx_va for the enclave's version array

 arch/x86/kernel/cpu/sgx/driver.c |   3 +-
 arch/x86/kernel/cpu/sgx/encl.c   | 180 ++++++++++++++++++++++---------
 arch/x86/kernel/cpu/sgx/encl.h   |  36 ++++---
 arch/x86/kernel/cpu/sgx/ioctl.c  |  77 +++++--------
 arch/x86/kernel/cpu/sgx/main.c   |  19 +---
 5 files changed, 184 insertions(+), 131 deletions(-)

-- 
2.30.1


             reply	other threads:[~2021-02-24 22:21 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-02-24 22:20 Jarkko Sakkinen [this message]
2021-02-24 22:20 ` [PATCH 1/3] x86/sgx: Move struct sgx_va_page creation to sgx_alloc_va_page() Jarkko Sakkinen
2021-02-24 22:20 ` [PATCH 2/3] x86/sgx: Add a version array (VA) structure Jarkko Sakkinen
2021-02-24 22:20 ` [PATCH 3/3] x86/sgx: Use sgx_va for the enclave's version array Jarkko Sakkinen
2021-02-24 23:48 ` [PATCH 0/3] Introduce version array structure: sgx_va Dave Hansen
2021-02-25  1:01   ` Jarkko Sakkinen
2021-02-25  7:34 ` Jarkko Sakkinen

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