Hi Dave,
On 6/21/2021 12:05 PM, Dave Hansen wrote:
The SGX selftests can fail for a bunch of non-obvious reasons like 'noexec' permissions on /dev (which is the default *EVERYWHERE* it seems).
A new test mistakenly also looked for +x permission on the /dev/sgx_enclave. File execute permissions really only apply to the ability of execve() to work on a file, *NOT* on the ability for an application to map the file with PROT_EXEC. SGX needs to mmap(PROT_EXEC), but doesn't need to execve() the device file.
Remove the check.
Fixes: 4284f7acb78b ("selftests/sgx: Improve error detection and messages") Reported-by: Tim Gardner tim.gardner@canonical.com Cc: Jarkko Sakkinen jarkko@kernel.org Cc: Reinette Chatre reinette.chatre@intel.com Cc: Dave Hansen dave.hansen@linux.intel.com Cc: Shuah Khan shuah@kernel.org Cc: linux-sgx@vger.kernel.org Cc: linux-kselftest@vger.kernel.org Cc: linux-kernel@vger.kernel.org
Thank you very much for fixing this. With this applied the SGX tests are able to run again on my system.
Tested-by: Reinette Chatre reinette.chatre@intel.com
I think it is missing a "Signed-off-by".
Reinette