This patch series adds a some not yet picked selftests to the kvm s390x
selftest suite.
The additional test cases are covering:
* Assert KVM_EXIT_S390_UCONTROL exit on not mapped memory access
* Assert functionality of storage keys in ucontrol VM
* Assert that memory region operations are rejected for ucontrol VMs
Running the test cases requires sys_admin capabilities to start the
ucontrol VM.
This can be achieved by running as root or with a command like:
sudo setpriv --reuid nobody --inh-caps -all,+sys_admin \
--ambient-caps -all,+sys_admin --bounding-set -all,+sys_admin \
./ucontrol_test
---
The patches in this series have been part of the previous patch series.
The test cases added here do depend on the fixture added in the earlier
patches.
>From v5 PATCH 7-9 the segment and page table generation has been removed
and DAT
has been disabled. Since DAT is not necessary to validate the KVM code.
https://lore.kernel.org/kvm/[email protected]/
v6:
- add instruction intercept handling for skey specific instructions
(iske, sske, rrbe) in addition to kss intercept to work properly on
all machines
- reorder local variables
- fixup some method comments
- add a patch correcting the IP.b value length a debug message
v5:
- rebased to current upstream master
- corrected assertion on 0x00 to 0
- reworded fixup commit so that it can be merged on top of current
upstream
v4:
- fix whitespaces in pointer function arguments (thanks Claudio)
- fix whitespaces in comments (thanks Janosch)
v3:
- fix skey assertion (thanks Claudio)
- introduce a wrapper around UCAS map and unmap ioctls to improve
readability (Claudio)
- add an displacement to accessed memory to assert translation
intercepts actually point to segments to the uc_map_unmap test
- add an misaligned failing mapping try to the uc_map_unmap test
v2:
- Reenable KSS intercept and handle it within skey test.
- Modify the checked register between storing (sske) and reading (iske)
it within the test program to make sure the.
- Add an additional state assertion in the end of uc_skey
- Fix some typos and white spaces.
v1:
- Remove segment and page table generation and disable DAT. This is not
necessary to validate the KVM code.
Christoph Schlameuss (5):
selftests: kvm: s390: Add uc_map_unmap VM test case
selftests: kvm: s390: Add uc_skey VM test case
selftests: kvm: s390: Verify reject memory region operations for
ucontrol VMs
selftests: kvm: s390: Fix whitespace confusion in ucontrol test
selftests: kvm: s390: correct IP.b length in uc_handle_sieic debug
output
.../selftests/kvm/include/s390x/processor.h | 6 +
.../selftests/kvm/s390x/ucontrol_test.c | 307 +++++++++++++++++-
2 files changed, 305 insertions(+), 8 deletions(-)
base-commit: eca631b8fe808748d7585059c4307005ca5c5820
--
2.47.0
