Merge tag 'x86_sgx_for_v6.0-2022-08-03.1' of git://git.kernel.org/pub/scm/linux/kerne...

Pull x86 SGX updates from Dave Hansen:
 "A set of x86/sgx changes focused on implementing the "SGX2" features,
  plus a minor cleanup:

   - SGX2 ISA support which makes enclave memory management much more
     dynamic. For instance, enclaves can now change enclave page
     permissions on the fly.

   - Removal of an unused structure member"

* tag 'x86_sgx_for_v6.0-2022-08-03.1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (32 commits)
  x86/sgx: Drop 'page_index' from sgx_backing
  selftests/sgx: Page removal stress test
  selftests/sgx: Test reclaiming of untouched page
  selftests/sgx: Test invalid access to removed enclave page
  selftests/sgx: Test faulty enclave behavior
  selftests/sgx: Test complete changing of page type flow
  selftests/sgx: Introduce TCS initialization enclave operation
  selftests/sgx: Introduce dynamic entry point
  selftests/sgx: Test two different SGX2 EAUG flows
  selftests/sgx: Add test for TCS page permission changes
  selftests/sgx: Add test for EPCM permission changes
  Documentation/x86: Introduce enclave runtime management section
  x86/sgx: Free up EPC pages directly to support large page ranges
  x86/sgx: Support complete page removal
  x86/sgx: Support modifying SGX page type
  x86/sgx: Tighten accessible memory range after enclave initialization
  x86/sgx: Support adding of pages to an initialized enclave
  x86/sgx: Support restricting of enclave page permissions
  x86/sgx: Support VA page allocation without reclaiming
  x86/sgx: Export sgx_encl_page_alloc()
  ...

diff --cc arch/x86/kernel/cpu/sgx/encl.c
Simple merge

diff --cc arch/x86/kernel/cpu/sgx/encl.h
index 332ef3568267e3920258ba3efabede33c07b06b4,57cc23602bbbc7286c9c33f7feaab543dc2ab397..a65a952116fd1c2c8fac3db27b9f6453e14f5a59
--- 1/arch/x86/kernel/cpu/sgx/encl.h
--- 2/arch/x86/kernel/cpu/sgx/encl.h
+++ b/arch/x86/kernel/cpu/sgx/encl.h
@@@ -103,13 -103,11 +103,14 @@@ static inline int sgx_encl_find(struct 
  int sgx_encl_may_map(struct sgx_encl *encl, unsigned long start,
                     unsigned long end, unsigned long vm_flags);
  
 +bool current_is_ksgxd(void);
  void sgx_encl_release(struct kref *ref);
  int sgx_encl_mm_add(struct sgx_encl *encl, struct mm_struct *mm);
 -int sgx_encl_get_backing(struct sgx_encl *encl, unsigned long page_index,
 -                       struct sgx_backing *backing);
+ const cpumask_t *sgx_encl_cpumask(struct sgx_encl *encl);
 +int sgx_encl_lookup_backing(struct sgx_encl *encl, unsigned long page_index,
 +                          struct sgx_backing *backing);
 +int sgx_encl_alloc_backing(struct sgx_encl *encl, unsigned long page_index,
 +                         struct sgx_backing *backing);
  void sgx_encl_put_backing(struct sgx_backing *backing);
  int sgx_encl_test_and_clear_young(struct mm_struct *mm,
                                  struct sgx_encl_page *page);

diff --cc arch/x86/kernel/cpu/sgx/main.c
Simple merge