KVM: selftests: Implement ucall() for s390x

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On s390x, we can neither exit via PIO nor MMIO, but have to use an
instruction like DIAGNOSE. Now that ucall() is implemented, we can
use it in the sync_reg_test on s390x, too.

Reviewed-by: Andrew Jones <drjones@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
Link: https://lore.kernel.org/r/20190731151525.17156-3-thuth@redhat.com
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>

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Thomas Huth 2019-07-31 17:15:24 +02:00 • committed by Christian Borntraeger

parent 2040f414d1

commit f90f57b397

3 changed files with 61 additions and 3 deletions

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2

tools/testing/selftests/kvm/Makefile

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56

tools/testing/selftests/kvm/lib/s390x/ucall.c

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

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