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| author | Sean Christopherson <seanjc@google.com> | 2022-06-14 20:06:28 +0000 |
|---|---|---|
| committer | Sean Christopherson <seanjc@google.com> | 2022-07-13 18:14:09 -0700 |
| commit | 61d76b8a6943cd12b89029f9b04a75ce97f01d96 (patch) | |
| tree | 108ff9d7c8abf748b80d22bd3902adc0f0425b7a /tools/perf/scripts/python | |
| parent | KVM: sefltests: Use CPUID_* instead of X86_FEATURE_* for one-off usage (diff) | |
| download | linux-61d76b8a6943cd12b89029f9b04a75ce97f01d96.tar.gz linux-61d76b8a6943cd12b89029f9b04a75ce97f01d96.zip | |
KVM: selftests: Add framework to query KVM CPUID bits
Add X86_FEATURE_* magic in the style of KVM-Unit-Tests' implementation,
where the CPUID function, index, output register, and output bit position
are embedded in the macro value. Add kvm_cpu_has() to query KVM's
supported CPUID and use it set_sregs_test, which is the most prolific
user of manual feature querying.
Opportunstically rename calc_cr4_feature_bits() to
calc_supported_cr4_feature_bits() to better capture how the CR4 bits are
chosen.
Link: https://lore.kernel.org/all/20210422005626.564163-1-ricarkol@google.com
Suggested-by: Paolo Bonzini <pbonzini@redhat.com>
Suggested-by: Jim Mattson <jmattson@google.com>
Signed-off-by: Sean Christopherson <seanjc@google.com>
Link: https://lore.kernel.org/r/20220614200707.3315957-4-seanjc@google.com
Diffstat (limited to 'tools/perf/scripts/python')
0 files changed, 0 insertions, 0 deletions