[kvm-unit-tests,v3,0/3] better smp interrupt checks

Message

Claudio Imbrenda July 13, 2022, 10:45 a.m. UTC

Use per-CPU flags and callbacks for Program and External interrupts
instead of global variables.
    
This allows for more accurate error handling; a CPU waiting for an
interrupt will not have it "stolen" by a different CPU that was not
supposed to wait for one, and now two CPUs can wait for interrupts at
the same time.

Also fix skey.c to be compatible with the new interrupt handling.

Add some utility functions to manipulate bits in the PSW mask, to
improve readability.

v2->v3
* improve commit messages and fix some comments
* remove unused psw_mask_set_clear_bits
* remove ext_cleanup_func from struct cpu
* minor code style changes

Claudio Imbrenda (3):
  lib: s390x: add functions to set and clear PSW bits
  s390x: skey.c: rework the interrupt handler
  lib: s390x: better smp interrupt checks

 lib/s390x/asm/arch_def.h | 61 ++++++++++++++++++++++++++++++++++------
 lib/s390x/asm/pgtable.h  |  2 --
 lib/s390x/smp.h          |  8 +-----
 lib/s390x/interrupt.c    | 57 +++++++++++++++++++++++++++----------
 lib/s390x/mmu.c          | 14 +--------
 lib/s390x/sclp.c         |  7 +----
 lib/s390x/smp.c          | 11 ++++++++
 s390x/diag288.c          |  6 ++--
 s390x/selftest.c         |  4 +--
 s390x/skey.c             | 23 ++++++---------
 s390x/skrf.c             | 12 ++------
 s390x/smp.c              | 18 ++----------
 12 files changed, 127 insertions(+), 96 deletions(-)