linux-toradex.git/tools/testing/selftests/kvm/s390x, branch master

KVM: selftests: Use canonical $(ARCH) paths for KVM selftests directories

2024-12-18T22:15:04+00:00

Use the kernel's canonical $(ARCH) paths instead of the raw target triple
for KVM selftests directories.  KVM selftests are quite nearly the only
place in the entire kernel that using the target triple for directories,
tools/testing/selftests/drivers/s390x being the lone holdout.

Using the kernel's preferred nomenclature eliminates the minor, but
annoying, friction of having to translate to KVM's selftests directories,
e.g. for pattern matching, opening files, running selftests, etc.

Opportunsitically delete file comments that reference the full path of the
file, as they are obviously prone to becoming stale, and serve no known
purpose.

Reviewed-by: Muhammad Usama Anjum 
Acked-by: Claudio Imbrenda 
Acked-by: Andrew Jones 
Link: https://lore.kernel.org/r/20241128005547.4077116-16-seanjc@google.com
Signed-off-by: Sean Christopherson

KVM: selftests: Return a value from vcpu_get_reg() instead of using an out-param

2024-12-18T22:14:14+00:00

Return a uint64_t from vcpu_get_reg() instead of having the caller provide
a pointer to storage, as none of the vcpu_get_reg() usage in KVM selftests
accesses a register larger than 64 bits, and vcpu_set_reg() only accepts a
64-bit value.  If a use case comes along that needs to get a register that
is larger than 64 bits, then a utility can be added to assert success and
take a void pointer, but until then, forcing an out param yields ugly code
and prevents feeding the output of vcpu_get_reg() into vcpu_set_reg().

Reviewed-by: Andrew Jones 
Acked-by: Claudio Imbrenda 
Link: https://lore.kernel.org/r/20241128005547.4077116-3-seanjc@google.com
Signed-off-by: Sean Christopherson

KVM: s390: selftests: Add regression tests for PFCR subfunctions

2024-11-11T12:15:44+00:00

Check if the PFCR query reported in userspace coincides with the
kernel reported function list. Right now we don't mask the functions
in the kernel so they have to be the same.

Signed-off-by: Hendrik Brueckner 
Reviewed-by: Hariharan Mari 
Link: https://lore.kernel.org/r/20241107152319.77816-5-brueckner@linux.ibm.com
[frankja@linux.ibm.com: Added commit description]
Signed-off-by: Janosch Frank 
Message-ID: <20241107152319.77816-5-brueckner@linux.ibm.com>

KVM: s390: selftests: correct IP.b length in uc_handle_sieic debug output

2024-11-11T12:07:29+00:00

The length of the interrupt parameters (IP) are:
a: 2 bytes
b: 4 bytes

Signed-off-by: Christoph Schlameuss 
Link: https://lore.kernel.org/r/20241107141024.238916-6-schlameuss@linux.ibm.com
[frankja@linux.ibm.com: Fixed patch prefix]
Signed-off-by: Janosch Frank 
Message-ID: <20241107141024.238916-6-schlameuss@linux.ibm.com>

KVM: s390: selftests: Fix whitespace confusion in ucontrol test

2024-11-11T12:07:04+00:00

Checkpatch thinks that we're doing a multiplication but we're obviously
not. Fix 4 instances where we adhered to wrong checkpatch advice.

Signed-off-by: Christoph Schlameuss 
Reviewed-by: Janosch Frank 
Link: https://lore.kernel.org/r/20241107141024.238916-5-schlameuss@linux.ibm.com
[frankja@linux.ibm.com: Fixed patch prefix]
Signed-off-by: Janosch Frank 
Message-ID: <20241107141024.238916-5-schlameuss@linux.ibm.com>

KVM: s390: selftests: Verify reject memory region operations for ucontrol VMs

2024-11-11T12:06:07+00:00

Add a test case verifying KVM_SET_USER_MEMORY_REGION and
KVM_SET_USER_MEMORY_REGION2 cannot be executed on ucontrol VMs.

Executing this test case on not patched kernels will cause a null
pointer dereference in the host kernel.
This is fixed with commit:
commit 7816e58967d0 ("kvm: s390: Reject memory region operations for ucontrol VMs")

Signed-off-by: Christoph Schlameuss 
Reviewed-by: Janosch Frank 
Link: https://lore.kernel.org/r/20241107141024.238916-4-schlameuss@linux.ibm.com
[frankja@linux.ibm.com: Fixed patch prefix]
Signed-off-by: Janosch Frank 
Message-ID: <20241107141024.238916-4-schlameuss@linux.ibm.com>

KVM: s390: selftests: Add uc_skey VM test case

2024-11-11T12:05:48+00:00

Add a test case manipulating s390 storage keys from within the ucontrol
VM.

Storage key instruction (ISKE, SSKE and RRBE) intercepts and
Keyless-subset facility are disabled on first use, where the skeys are
setup by KVM in non ucontrol VMs.

Signed-off-by: Christoph Schlameuss 
Link: https://lore.kernel.org/r/20241108091620.289406-1-schlameuss@linux.ibm.com
Acked-by: Janosch Frank 
[frankja@linux.ibm.com: Fixed patch prefix]
Signed-off-by: Janosch Frank 
Message-ID: <20241108091620.289406-1-schlameuss@linux.ibm.com>

KVM: s390: selftests: Add uc_map_unmap VM test case

2024-11-11T12:04:36+00:00

Add a test case verifying basic running and interaction of ucontrol VMs.
Fill the segment and page tables for allocated memory and map memory on
first access.

* uc_map_unmap
  Store and load data to mapped and unmapped memory and use pic segment
  translation handling to map memory on access.

Signed-off-by: Christoph Schlameuss 
Reviewed-by: Janosch Frank 
Link:
https://lore.kernel.org/r/20241107141024.238916-2-schlameuss@linux.ibm.com
[frankja@linux.ibm.com: Fixed patch prefix]
Signed-off-by: Janosch Frank 
Message-ID: <20241107141024.238916-2-schlameuss@linux.ibm.com>

KVM: s390: selftests: Add regression tests for PLO subfunctions

2024-10-07T08:53:55+00:00

Extend the existing regression test framework for s390x CPU subfunctions
to include tests for the Perform Locked Operation (PLO) subfunction
functions.

PLO was introduced in the very first 64-bit machine generation.
Hence it is assumed PLO is always installed in the Z Arch.
The test procedure follows the established pattern.

Suggested-by: Janosch Frank 
Signed-off-by: Hariharan Mari 
Reviewed-by: Janosch Frank 
Reviewed-by: Christoph Schlameuss 
Link: https://lore.kernel.org/r/20240823130947.38323-6-hari55@linux.ibm.com
Signed-off-by: Janosch Frank 
Message-ID: <20240823130947.38323-6-hari55@linux.ibm.com>

KVM: s390: selftests: Add regression tests for KMAC, KMC, KM, KIMD and KLMD crypto subfunctions

2024-10-07T08:53:55+00:00

Extend the existing regression test framework for s390x CPU subfunctions
to include tests for the KMAC (Compute Message Authentication Code),
KMC (Cipher Message with Chaining), KM (Cipher Message) KIMD (Compute
Intermediate Message Digest) and KLMD (Compute Last Message Digest)
crypto functions.

The test procedure follows the established pattern.

Suggested-by: Janosch Frank 
Signed-off-by: Hariharan Mari 
Reviewed-by: Janosch Frank 
Reviewed-by: Christoph Schlameuss 
Link: https://lore.kernel.org/r/20240823130947.38323-5-hari55@linux.ibm.com
Signed-off-by: Janosch Frank 
Message-ID: <20240823130947.38323-5-hari55@linux.ibm.com>