[PATCH for_v22 v2 0/8] x86/sgx: Remove EADD worker and page copy

[Sean Christopherson <sean.j.christopherson@intel.com>]

As suggested by Andy, remove the work queue in favor of handling the
entire EADD flow in the context of the ioctl().  After the worker is
gone, pass the source page/address directly to EADD instead of first
copying the data into kernel memory.

v2:
  - Rebase to master, commit 36e0186296a7.
  - Incorporate patch to require EADD be aligned, and add a selftest
    update to obey the new alignment requirement.

Sean Christopherson (8):
  selftests/x86/sgx: Align enclave binary on 4k boundary
  x86/sgx: Require EADD source to be page aligned
  x86/sgx: Validate generic SECINFO immediately after copying from user
  x86/sgx: Set SGX_ENCL_PAGE_TCS when allocating encl_page
  x86/sgx: Move encl_page insertion into tree out of alloc flow
  x86/sgx: Allocate encl_page prior to taking encl->lock
  x86/sgx: Remove the EADD page worker
  x86/sgx: Pass userspace source address directly to EADD

 arch/x86/kernel/cpu/sgx/driver/ioctl.c       | 405 +++++--------------
 arch/x86/kernel/cpu/sgx/driver/main.c        |   4 -
 arch/x86/kernel/cpu/sgx/encl.h               |   2 -
 tools/testing/selftests/x86/sgx/encl_piggy.S |   1 +
 4 files changed, 106 insertions(+), 306 deletions(-)

-- 
2.22.0