KVM: s390: selftests: memop: add a simple AR test

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There is a selftest that checks for an (expected) error when an
invalid AR is specified, but not one that exercises the AR path.

Add a simple test that mirrors the vanilla write/read test while
providing an AR. An AR that contains zero will direct the CPU to
use the primary address space normally used anyway. AR[1] is
selected for this test because the host AR[1] is usually non-zero,
and KVM needs to correctly swap those values.

Reviewed-by: Nina Schoetterl-Glausch <nsg@linux.ibm.com>
Acked-by: Christian Borntraeger <borntraeger@linux.ibm.com>
Signed-off-by: Eric Farman <farman@linux.ibm.com>
Link: https://lore.kernel.org/r/20240220211211.3102609-3-farman@linux.ibm.com
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>

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Eric Farman 2024-02-20 22:12:11 +01:00 • committed by Heiko Carstens

parent 01be7f53df

commit 559a146290

1 changed files with 31 additions and 0 deletions

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tools/testing/selftests/kvm/s390x/memop.c

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