KVM: selftests: Verify userspace can stuff IA32_FEATURE_CONTROL at will

Browse source

Verify the KVM allows userspace to set all supported bits in the
IA32_FEATURE_CONTROL MSR irrespective of the current guest CPUID, and
that all unsupported bits are rejected.

Throw the testcase into vmx_msrs_test even though it's not technically a
VMX MSR; it's close enough, and the most frequently feature controlled by
the MSR is VMX.

Signed-off-by: Sean Christopherson <seanjc@google.com>
Link: https://lore.kernel.org/r/20220607232353.3375324-4-seanjc@google.com

...

This commit is contained in:

Sean Christopherson 2022-06-07 23:23:53 +00:00

parent 2d6cd68636

commit b80732fdc9

2 changed files with 49 additions and 0 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

2

tools/testing/selftests/kvm/include/x86_64/processor.h

View file

47

tools/testing/selftests/kvm/x86_64/vmx_msrs_test.c

View file