[0/4] selftests/sgx: Trigger the page reclaimer and #PF handler

Message

Jarkko Sakkinen July 5, 2021, 2:36 p.m. UTC

Create a heap for the test enclave, which has the same size as all
available Enclave Page Cache (EPC) pages in the system. This will guarantee
that all test_encl.elf pages *and* SGX Enclave Control Structure (SECS)
have been swapped out by the page reclaimer during the load time. Actually,
this adds a bit more stress than that since part of the EPC gets reserved
for the Version Array (VA) pages.

For each test, the page fault handler gets triggered in two occasions:

- When SGX_IOC_ENCLAVE_INIT is performed, SECS gets swapped in by the
  page fault handler.
- During the execution, each page that is referenced gets swapped in
  by the page fault handler.

Jarkko Sakkinen (3):
  x86/sgx: Add sgx_nr_all_pages to the debugfs
  selftests/sgx: Assign source for each segment
  selftests/sgx: Trigger the reclaimer and #PF handler

Tianjia Zhang (1):
  selftests/sgx: Fix Q1 and Q2 calculation in sigstruct.c

 Documentation/x86/sgx.rst               |  9 +++++
 arch/x86/kernel/cpu/sgx/main.c          | 10 ++++-
 tools/testing/selftests/sgx/load.c      | 38 ++++++++++++++----
 tools/testing/selftests/sgx/main.c      | 42 +++++++++++++++++++-
 tools/testing/selftests/sgx/main.h      |  4 +-
 tools/testing/selftests/sgx/sigstruct.c | 53 +++++++++++++------------
 6 files changed, 120 insertions(+), 36 deletions(-)