[kvm-unit-tests,v2,0/3] better smp interrupt checks

Message

Claudio Imbrenda June 24, 2022, 2:45 p.m. UTC

Use per-CPU flags and callbacks for Program, Extern, and I/O 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.

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 | 75 +++++++++++++++++++++++++++++++++++-----
 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             | 24 +++++--------
 s390x/skrf.c             | 12 ++-----
 s390x/smp.c              | 18 ++--------
 12 files changed, 141 insertions(+), 97 deletions(-)