[PATCH v2 0/2] KVM: s390: Limit adapter indicator access to page

[Janosch Frank <frankja@linux.ibm.com>]

We currently check the address of the indicator fields but not the sum
of address and offset. This patch remedies that problem and limits the
address + offset combination to a single page.

The selftest is very rudimentary but it's a start.

v2:
Reworked KVM limit check.

Changed good-case test to subtract 4 bits instead of 8.
That should ensure that we catch the error I made in v1.

Janosch Frank (2):
  KVM: s390: Limit adapter indicator access to mapped page
  KVM: s390: selftests: Add IRQ routing address offset tests

 arch/s390/kvm/interrupt.c                     | 12 +++
 tools/testing/selftests/kvm/Makefile.kvm      |  1 +
 .../testing/selftests/kvm/s390/irq_routing.c  | 75 +++++++++++++++++++
 3 files changed, 88 insertions(+)
 create mode 100644 tools/testing/selftests/kvm/s390/irq_routing.c

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2.51.0