Two critical bug fixes for a memory leak in sgx_encl_destroy() and a livelock due to the EPC page free count getting corrupted. The rest of the patches are minor bug fixes and enhancements I collected in the process of hunting down the livelock. Sean Christopherson (9): x86/sgx: WARN once if an enclave is released with unfreed EPC pages x86/sgx: Do not EWB SECS if the enclave is dead x86/sgx: Fix a memory leak in sgx_encl_destroy() x86/sgx: WARN on any non-zero return from __eremove() x86/sgx: WARN only once if EREMOVE fails x86/sgx: Split second half of sgx_free_page() to a separate helper x86/sgx: Use the post-reclaim variant of __sgx_free_page() x86/sgx: Don't update free page count if EPC section allocation fails x86/sgx: Reinstate per EPC section free page counts arch/x86/kernel/cpu/sgx/encl.c | 30 +++++++++-------- arch/x86/kernel/cpu/sgx/ioctl.c | 6 ++-- arch/x86/kernel/cpu/sgx/main.c | 54 ++++++++++++++++++++++--------- arch/x86/kernel/cpu/sgx/reclaim.c | 25 +++++++------- arch/x86/kernel/cpu/sgx/sgx.h | 19 ++++++++++- 5 files changed, 91 insertions(+), 43 deletions(-) -- 2.22.0
