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| author | Sean Christopherson <seanjc@google.com> | 2024-01-09 15:02:26 -0800 |
|---|---|---|
| committer | Sean Christopherson <seanjc@google.com> | 2024-01-30 15:28:02 -0800 |
| commit | ecb490770ad42c7d3dc08f06efe7bf0779990745 (patch) | |
| tree | 8ae7a53079754b604f5ba41bbb7a6902f6c32c0b /tools/perf/scripts/python/stackcollapse.py | |
| parent | 7a277c22412cf72cf6376f21c6d826e8f4a44cc3 (diff) | |
KVM: x86/pmu: Don't ignore bits 31:30 for RDPMC index on AMD
Stop stripping bits 31:30 prior to validating/consuming the RDPMC index on
AMD. Per the APM's documentation of RDPMC, *values* greater than 27 are
reserved. The behavior of upper bits being flags is firmly Intel-only.
Fixes: ca724305a2b0 ("KVM: x86/vPMU: Implement AMD vPMU code for KVM")
Tested-by: Dapeng Mi <dapeng1.mi@linux.intel.com>
Link: https://lore.kernel.org/r/20240109230250.424295-7-seanjc@google.com
Signed-off-by: Sean Christopherson <seanjc@google.com>
Diffstat (limited to 'tools/perf/scripts/python/stackcollapse.py')
0 files changed, 0 insertions, 0 deletions