linux/tools/testing/selftests/kvm/include/s390x/processor.h, branch master

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

2024-12-18T22:15:04Z

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: s390: selftests: Add uc_skey VM test case

2024-11-11T12:05:48Z

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>

selftests: kvm: s390: Define page sizes in shared header

2024-08-19T07:51:15Z

Multiple test cases need page size and shift definitions. By moving the definitions to a single architecture specific header we limit the repetition. Make use of PAGE_SIZE, PAGE_SHIFT and PAGE_MASK defines in existing code. Signed-off-by: Christoph Schlameuss Reviewed-by: Claudio Imbrenda Reviewed-by: Janosch Frank Link: https://lore.kernel.org/r/20240807154512.316936-2-schlameuss@linux.ibm.com Signed-off-by: Janosch Frank Message-ID: <20240807154512.316936-2-schlameuss@linux.ibm.com>

KVM: selftests: Define cpu_relax() helpers for s390 and x86

2022-03-08T15:59:11Z

Add cpu_relax() for s390 and x86 for use in arch-agnostic tests. arm64 already defines its own version. Signed-off-by: Sean Christopherson Message-Id: <20220226001546.360188-28-seanjc@google.com> Signed-off-by: Paolo Bonzini

KVM: selftests: Add processor code for s390x

2019-06-04T12:05:38Z

Code that takes care of basic CPU setup, page table walking, etc. Signed-off-by: Thomas Huth Message-Id: <20190523164309.13345-7-thuth@redhat.com> Signed-off-by: Christian Borntraeger