KVM: x86: Print names of apicv inhibit reasons in traces

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Use the tracing infrastructure helper __print_flags() for printing flag
bitfields, to enhance the trace output by displaying a string describing
each of the inhibit reasons set.

The kvm_apicv_inhibit_changed tracepoint currently shows the raw bitmap
value, requiring the user to consult the source file where the inhibit
reasons are defined to decode the trace output.

Signed-off-by: Alejandro Jimenez <alejandro.j.jimenez@oracle.com>
Reviewed-by: Vasant Hegde <vasant.hegde@amd.com>
Link: https://lore.kernel.org/r/20240506225321.3440701-2-alejandro.j.jimenez@oracle.com
Co-developed-by: Sean Christopherson <seanjc@google.com>
Signed-off-by: Sean Christopherson <seanjc@google.com>

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Alejandro Jimenez 2024-05-06 22:53:20 +00:00 • committed by Sean Christopherson

parent 6fef518594

commit 69148ccec6

3 changed files with 30 additions and 2 deletions

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19

arch/x86/include/asm/kvm_host.h

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9

arch/x86/kvm/trace.h

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4

arch/x86/kvm/x86.c

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