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/openbmc/linux/arch/x86/kvm/mmu/ |
H A D | mmutrace.h | b9a98c34 Tue Oct 27 12:59:44 CDT 2020 Ben Gardon <bgardon@google.com> kvm: x86/mmu: Add TDP MMU SPTE changed trace point
Add an extremely verbose trace point to the TDP MMU to log all SPTE changes, regardless of callstack / motivation. This is useful when a complete picture of the paging structure is needed or a change cannot be explained with the other, existing trace points.
Tested: ran the demand paging selftest on an Intel Skylake machine with all the trace points used by the TDP MMU enabled and observed them firing with expected values.
This patch can be viewed in Gerrit at: https://linux-review.googlesource.com/c/virt/kvm/kvm/+/3813
Signed-off-by: Ben Gardon <bgardon@google.com> Message-Id: <20201027175944.1183301-2-bgardon@google.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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H A D | tdp_mmu.c | b9a98c34 Tue Oct 27 12:59:44 CDT 2020 Ben Gardon <bgardon@google.com> kvm: x86/mmu: Add TDP MMU SPTE changed trace point
Add an extremely verbose trace point to the TDP MMU to log all SPTE changes, regardless of callstack / motivation. This is useful when a complete picture of the paging structure is needed or a change cannot be explained with the other, existing trace points.
Tested: ran the demand paging selftest on an Intel Skylake machine with all the trace points used by the TDP MMU enabled and observed them firing with expected values.
This patch can be viewed in Gerrit at: https://linux-review.googlesource.com/c/virt/kvm/kvm/+/3813
Signed-off-by: Ben Gardon <bgardon@google.com> Message-Id: <20201027175944.1183301-2-bgardon@google.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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