Add a program interrupt handler and two simple program interrupt tests.
The check for the ADRESSING exception will fail on
- TCG without "target/s390x: addressing exceptions are suppressing"
- Old KVM versions without 492d8642eaef ("KVM: s390: Forward PSW to next
instruction for addressing exceptions")
v1 -> v2: (s390x: generate asm offsets for the lowcore)
- Added missing field (mcck extended save area)
- Dropped alignment attribute for naturally aligned struct
v1 -> v2: (pgm interrupt handler and a way to test them)
- Renamed everything from irq->int/interrupt to keep it consistent
- Use global lowcore variable struct lowcore *lc;
- Safe+restore fpr and fpc in interrupt handler
- Setup pgm int handler using mvc instruction
- Renamed received_pgm_irq to check_pgm_int_code() and moved "report"
into "check_pgm_int_code()"
- Minor style + comment fixes
David Hildenbrand (2):
s390x: generate asm offsets for the lowcore
s390x: pgm interrupt handler and a way to test them
lib/s390x/asm-offsets.c | 74 ++++++++++++++++++++++
lib/s390x/asm/arch_def.h | 146 ++++++++++++++++++++++++++++++++++++++++++++
lib/s390x/asm/asm-offsets.h | 10 +++
lib/s390x/asm/interrupt.h | 18 ++++++
lib/s390x/interrupt.c | 82 +++++++++++++++++++++++++
s390x/Makefile | 10 ++-
s390x/cstart64.S | 55 +++++++++++++++++
s390x/selftest.c | 13 ++++
8 files changed, 407 insertions(+), 1 deletion(-)
create mode 100644 lib/s390x/asm-offsets.c
create mode 100644 lib/s390x/asm/arch_def.h
create mode 100644 lib/s390x/asm/asm-offsets.h
create mode 100644 lib/s390x/asm/interrupt.h
create mode 100644 lib/s390x/interrupt.c
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2.9.3
