[PATCH 0/3] Introduce version array structure: sgx_va

[Jarkko Sakkinen <jarkko@kernel.org>]

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