Rework (x86) KVM selftests' handling of CPUID to track CPUID on a per-vCPU
basis, and add X86_FEATURE_* / CPUID support in the style of KVM-Unit-Tests,
e.g. add kvm_cpu_has(), vcpu_{clear,set}_cpuid_feature(), this_cpu_has(),
etc...
The two main goals are to simplify checking or modifying CPUID-based
features, and to eliminate the absolutely awful behavior of modifying the
global "cpuid" that is cached by kvm_get_supported_cpuid().
This builds on the selftests overhaul[*]. Build tested on all
architectures, all tests except AMX and SEV run on x86.
https://lore.kernel.org/all/20220603004331.1523888-1-seanjc@xxxxxxxxxx
Sean Christopherson (42):
KVM: selftests: Set KVM's supported CPUID as vCPU's CPUID during
recreate
KVM: sefltests: Use CPUID_XSAVE and CPUID_OSXAVE instead of
X86_FEATURE_*
KVM: selftests: Add framework to query KVM CPUID bits
KVM: selftests: Use kvm_cpu_has() in the SEV migration test
KVM: selftests: Use kvm_cpu_has() for nested SVM checks
KVM: selftests: Use kvm_cpu_has() for nested VMX checks
KVM: selftests: Use kvm_cpu_has() to query PDCM in PMU selftest
KVM: selftests: Drop redundant vcpu_set_cpuid() from PMU selftest
KVM: selftests: Use kvm_cpu_has() for XSAVES in XSS MSR test
KVM: selftests: Check for _both_ XTILE data and cfg in AMX test
KVM: selftests: Use kvm_cpu_has() in AMX test
KVM: selftests: Use kvm_cpu_has() for XSAVE in cr4_cpuid_sync_test
KVM: selftests: Remove the obsolete/dead MMU role test
KVM: selftests: Use kvm_cpu_has() for KVM's PV steal time
KVM: selftests: Use kvm_cpu_has() for nSVM soft INT injection test
KVM: selftests: Verify that kvm_cpuid2.entries layout is unchanged by
KVM
KVM: selftests: Split out kvm_cpuid2_size() from allocate_kvm_cpuid2()
KVM: selftests: Cache CPUID in struct kvm_vcpu
KVM: selftests: Don't use a static local in
vcpu_get_supported_hv_cpuid()
KVM: selftests: Rename and tweak get_cpuid() to get_cpuid_entry()
KVM: selftests: Use get_cpuid_entry() in
kvm_get_supported_cpuid_index()
KVM: selftests: Add helpers to get and modify a vCPU's CPUID entries
KVM: selftests: Use vm->pa_bits to generate reserved PA bits
KVM: selftests: Add and use helper to set vCPU's CPUID maxphyaddr
KVM: selftests: Use vcpu_get_cpuid_entry() in PV features test (sort
of)
KVM: selftests: Use vCPU's CPUID directly in Hyper-V test
KVM: selftests: Use vcpu_get_cpuid_entry() in CPUID test
KVM: selftests: Use vcpu_{set,clear}_cpuid_feature() in nVMX state
test
KVM: selftests: Use vcpu_clear_cpuid_feature() to clear x2APIC
KVM: selftests: Make get_supported_cpuid() returns "const"
KVM: selftests: Set input function/index in raw CPUID helper(s)
KVM: selftests: Add this_cpu_has() to query X86_FEATURE_* via cpuid()
KVM: selftests: Use this_cpu_has() in CR4/CPUID sync test
KVM: selftests: Use this_cpu_has() to detect SVM support in L1
KVM: selftests: Drop unnecessary use of
kvm_get_supported_cpuid_index()
KVM: selftests: Rename kvm_get_supported_cpuid_index() to
__..._entry()
KVM: selftests: Inline "get max CPUID leaf" helpers
KVM: selftests: Check KVM's supported CPUID, not host CPUID, for XFD
KVM: selftests: Skip AMX test if ARCH_REQ_XCOMP_GUEST_PERM isn't
supported
KVM: selftests: Clean up requirements for XFD-aware XSAVE features
KVM: selftests: Use the common cpuid() helper in
cpu_vendor_string_is()
KVM: selftests: Drop unused SVM_CPUID_FUNC macro
tools/testing/selftests/kvm/.gitignore | 1 -
tools/testing/selftests/kvm/Makefile | 1 -
.../selftests/kvm/include/kvm_util_base.h | 14 +
.../selftests/kvm/include/x86_64/processor.h | 297 +++++++++++++++---
.../selftests/kvm/include/x86_64/svm.h | 2 -
.../selftests/kvm/include/x86_64/svm_util.h | 15 -
.../selftests/kvm/include/x86_64/vmx.h | 3 -
tools/testing/selftests/kvm/lib/kvm_util.c | 17 +-
.../selftests/kvm/lib/x86_64/processor.c | 289 +++++++----------
tools/testing/selftests/kvm/lib/x86_64/svm.c | 13 -
tools/testing/selftests/kvm/lib/x86_64/vmx.c | 12 -
tools/testing/selftests/kvm/steal_time.c | 4 +-
tools/testing/selftests/kvm/x86_64/amx_test.c | 48 +--
.../testing/selftests/kvm/x86_64/cpuid_test.c | 89 +++---
.../kvm/x86_64/cr4_cpuid_sync_test.c | 21 +-
.../kvm/x86_64/emulator_error_test.c | 10 +-
.../testing/selftests/kvm/x86_64/evmcs_test.c | 2 +-
.../selftests/kvm/x86_64/hyperv_cpuid.c | 14 +-
.../selftests/kvm/x86_64/hyperv_features.c | 126 ++++----
.../selftests/kvm/x86_64/hyperv_svm_test.c | 2 +-
.../selftests/kvm/x86_64/kvm_pv_test.c | 14 +-
.../selftests/kvm/x86_64/mmu_role_test.c | 137 --------
.../kvm/x86_64/pmu_event_filter_test.c | 14 +-
.../selftests/kvm/x86_64/set_sregs_test.c | 28 +-
.../selftests/kvm/x86_64/sev_migrate_tests.c | 13 +-
tools/testing/selftests/kvm/x86_64/smm_test.c | 9 +-
.../testing/selftests/kvm/x86_64/state_test.c | 7 +-
.../selftests/kvm/x86_64/svm_int_ctl_test.c | 2 +-
.../kvm/x86_64/svm_nested_soft_inject_test.c | 10 +-
.../selftests/kvm/x86_64/svm_vmcall_test.c | 2 +-
.../kvm/x86_64/triple_fault_event_test.c | 2 +-
.../kvm/x86_64/vmx_apic_access_test.c | 2 +-
.../kvm/x86_64/vmx_close_while_nested_test.c | 2 +-
.../selftests/kvm/x86_64/vmx_dirty_log_test.c | 2 +-
.../x86_64/vmx_invalid_nested_guest_state.c | 2 +-
.../kvm/x86_64/vmx_nested_tsc_scaling_test.c | 2 +-
.../selftests/kvm/x86_64/vmx_pmu_caps_test.c | 14 +-
.../kvm/x86_64/vmx_preemption_timer_test.c | 4 +-
.../kvm/x86_64/vmx_set_nested_state_test.c | 22 +-
.../kvm/x86_64/vmx_tsc_adjust_test.c | 2 +-
.../selftests/kvm/x86_64/xapic_state_test.c | 10 +-
.../selftests/kvm/x86_64/xss_msr_test.c | 8 +-
42 files changed, 561 insertions(+), 727 deletions(-)
delete mode 100644 tools/testing/selftests/kvm/x86_64/mmu_role_test.c
base-commit: fa72038b1752a8f9b7ac57b1351d729239e6b6d8
--
2.36.1.255.ge46751e96f-goog
