[kvm-unit-tests,v3,0/7] s390x: Add base AP support

Message

Janosch Frank Nov. 17, 2023, 3:19 p.m. UTC

As KVM supports passing Adjunct Processor (AP) crypto devices to
guests, we should make sure that the interface works as expected.

Three instructions provide the interface to the AP devices:
 - nqap: Enqueues a crypto request
 - dqap: Dequeues a crypto request
 - pqap: Provides information and processes support functions

nqap & dqap work on crypto requests for which we currently don't want
to add tests due to their sheer complexity.

Which leaves us with pqap which is partly emulated for a guest 2 and
hence is a prime target for testing.

v3:
	- Renamed ap_check() to ap_setup() and added comment

v2:
	- Re-worked the ap_check() function to test for stfle 12 since
          we rely on PQAP QCI in the library functions
	- Re-worked APQN management
	- Fixed faulty loop variable initializers in ap.c
	- Fixed report messages
	- Extended clobber lists
	- Extended length bit checks for nqap
	- Now using ARRAY_SIZE where applicabale
	- NIB is now allocated as IO memory


Janosch Frank (7):
  lib: s390x: Add ap library
  s390x: Add guest 2 AP test
  lib: s390x: ap: Add proper ap setup code
  s390x: ap: Add pqap aqic tests
  s390x: ap: Add reset tests
  lib: s390x: ap: Add tapq test facility bit
  s390x: ap: Add nq/dq len test

 lib/s390x/ap.c      | 278 ++++++++++++++++++++++
 lib/s390x/ap.h      | 119 ++++++++++
 s390x/Makefile      |   2 +
 s390x/ap.c          | 564 ++++++++++++++++++++++++++++++++++++++++++++
 s390x/unittests.cfg |   3 +
 5 files changed, 966 insertions(+)
 create mode 100644 lib/s390x/ap.c
 create mode 100644 lib/s390x/ap.h
 create mode 100644 s390x/ap.c