Commit Graph

9 Commits

Author SHA1 Message Date
Janis Schoetterl-Glausch
c71159648c KVM: s390: selftest: Test suppression indication on key prot exception
Check that suppression is not indicated on injection of a key checked
protection exception caused by a memop after it already modified guest
memory, as that violates the definition of suppression.

Signed-off-by: Janis Schoetterl-Glausch <scgl@linux.ibm.com>
Reviewed-by: Christian Borntraeger <borntraeger@linux.ibm.com>
Link: https://lore.kernel.org/r/20220512131019.2594948-3-scgl@linux.ibm.com
Signed-off-by: Christian Borntraeger <borntraeger@linux.ibm.com>
Signed-off-by: Janosch Frank <frankja@linux.ibm.com>
2022-05-20 16:38:42 +02:00
Janis Schoetterl-Glausch
3bcc372c98 KVM: s390: selftests: Add error memop tests
Test that errors occur if key protection disallows access, including
tests for storage and fetch protection override. Perform tests for both
logical vcpu and absolute vm ioctls.
Also extend the existing tests to the vm ioctl.

Signed-off-by: Janis Schoetterl-Glausch <scgl@linux.ibm.com>
Link: https://lore.kernel.org/r/20220308125841.3271721-6-scgl@linux.ibm.com
Signed-off-by: Christian Borntraeger <borntraeger@linux.ibm.com>
2022-03-14 16:12:27 +01:00
Janis Schoetterl-Glausch
1bb873495a KVM: s390: selftests: Add more copy memop tests
Do not just test the actual copy, but also that success is indicated
when using the check only flag.
Add copy test with storage key checking enabled, including tests for
storage and fetch protection override.
These test cover both logical vcpu ioctls as well as absolute vm ioctls.

Signed-off-by: Janis Schoetterl-Glausch <scgl@linux.ibm.com>
Link: https://lore.kernel.org/r/20220308125841.3271721-5-scgl@linux.ibm.com
Signed-off-by: Christian Borntraeger <borntraeger@linux.ibm.com>
2022-03-14 16:12:27 +01:00
Janis Schoetterl-Glausch
c4816a1b7f KVM: s390: selftests: Add named stages for memop test
The stages synchronize guest and host execution.
This helps the reader and constraits the execution of the test -- if the
observed staging differs from the expected the test fails.

Signed-off-by: Janis Schoetterl-Glausch <scgl@linux.ibm.com>
Link: https://lore.kernel.org/r/20220308125841.3271721-4-scgl@linux.ibm.com
Signed-off-by: Christian Borntraeger <borntraeger@linux.ibm.com>
2022-03-14 16:12:27 +01:00
Janis Schoetterl-Glausch
4eb562ab99 KVM: s390: selftests: Add macro as abstraction for MEM_OP
In order to achieve good test coverage we need to be able to invoke the
MEM_OP ioctl with all possible parametrizations.
However, for a given test, we want to be concise and not specify a long
list of default values for parameters not relevant for the test, so the
readers attention is not needlessly diverted.
Add a macro that enables this and convert the existing test to use it.
The macro emulates named arguments and hides some of the ioctl's
redundancy, e.g. sets the key flag if an access key is specified.

Signed-off-by: Janis Schoetterl-Glausch <scgl@linux.ibm.com>
Link: https://lore.kernel.org/r/20220308125841.3271721-3-scgl@linux.ibm.com
Signed-off-by: Christian Borntraeger <borntraeger@linux.ibm.com>
2022-03-14 16:12:27 +01:00
Janis Schoetterl-Glausch
70e2f9f039 KVM: s390: selftests: Split memop tests
Split success case/copy test from error test, making them independent.
This means they do not share state and are easier to understand.
Also, new test can be added in the same manner without affecting the old
ones. In order to make that simpler, introduce functionality for the
setup of commonly used variables.

Signed-off-by: Janis Schoetterl-Glausch <scgl@linux.ibm.com>
Link: https://lore.kernel.org/r/20220308125841.3271721-2-scgl@linux.ibm.com
Signed-off-by: Christian Borntraeger <borntraeger@linux.ibm.com>
2022-03-14 16:12:27 +01:00
Thomas Huth
05515d341f selftests: kvm: Check whether SIDA memop fails for normal guests
Commit 2c212e1bae ("KVM: s390: Return error on SIDA memop on normal
guest") fixed the behavior of the SIDA memops for normal guests. It
would be nice to have a way to test whether the current kernel has
the fix applied or not. Thus add a check to the KVM selftests for
these two memops.

Signed-off-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Janis Schoetterl-Glausch <scgl@linux.ibm.com>
Reviewed-by: Claudio Imbrenda <imbrenda@linux.ibm.com>
Reviewed-by: Shuah Khan <skhan@linuxfoundation.org>
Link: https://lore.kernel.org/r/20220215074824.188440-1-thuth@redhat.com
Signed-off-by: Christian Borntraeger <borntraeger@linux.ibm.com>
2022-02-15 16:38:12 +01:00
Andrew Jones
d0aac3320d KVM: selftests: Use consistent message for test skipping
Signed-off-by: Andrew Jones <drjones@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-03-16 17:59:05 +01:00
Thomas Huth
be6f55a60d KVM: selftests: Add a test for the KVM_S390_MEM_OP ioctl
Check that we can write and read the guest memory with this s390x
ioctl, and that some error cases are handled correctly.

Signed-off-by: Thomas Huth <thuth@redhat.com>
Link: https://lkml.kernel.org/r/20190829130732.580-1-thuth@redhat.com
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
2019-08-29 16:09:11 +02:00