diff options
| author | Paolo Bonzini <[email protected]> | 2019-10-01 15:18:26 +0200 |
|---|---|---|
| committer | Paolo Bonzini <[email protected]> | 2019-10-03 12:07:59 +0200 |
| commit | 24c29b7ac0da3e2eb589553f7a98bade6d0a0e60 (patch) | |
| tree | 2c5caab599aefbcd498265f273429974bd46f954 /scripts/gdb/linux/symbols.py | |
| parent | 6e06983dde969c15eb4fdab77f0eda8b18ea28e6 (diff) | |
KVM: x86: omit absent pmu MSRs from MSR list
INTEL_PMC_MAX_GENERIC is currently 32, which exceeds the 18 contiguous
MSR indices reserved by Intel for event selectors. Since some machines
actually have MSRs past the reserved range, these may survive the
filtering of msrs_to_save array and would be rejected by KVM_GET/SET_MSR.
To avoid this, cut the list to whatever CPUID reports for the host's
architectural PMU.
Reported-by: Vitaly Kuznetsov <[email protected]>
Suggested-by: Vitaly Kuznetsov <[email protected]>
Cc: Jim Mattson <[email protected]>
Fixes: e2ada66ec418 ("kvm: x86: Add Intel PMU MSRs to msrs_to_save[]", 2019-08-21)
Signed-off-by: Paolo Bonzini <[email protected]>
Diffstat (limited to 'scripts/gdb/linux/symbols.py')
0 files changed, 0 insertions, 0 deletions