diff options
| author | Marc Zyngier <[email protected]> | 2021-03-05 18:52:51 +0000 |
|---|---|---|
| committer | Paolo Bonzini <[email protected]> | 2021-03-06 04:18:40 -0500 |
| commit | f27647b588c13647a60074b5a8dd39a86d919a1d (patch) | |
| tree | 99a47bf8bf42dc6994eb98191dc0dd4dbbff080b /lib/mpi/mpiutil.c | |
| parent | 6b5b368fccd7109b052e45af8ba1464c8d140a49 (diff) | |
KVM: arm64: Don't access PMSELR_EL0/PMUSERENR_EL0 when no PMU is available
When running under a nesting hypervisor, it isn't guaranteed that
the virtual HW will include a PMU. In which case, let's not try
to access the PMU registers in the world switch, as that'd be
deadly.
Reported-by: Andre Przywara <[email protected]>
Signed-off-by: Marc Zyngier <[email protected]>
Reviewed-by: Alexandru Elisei <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Message-Id: <[email protected]>
Signed-off-by: Paolo Bonzini <[email protected]>
Diffstat (limited to 'lib/mpi/mpiutil.c')
0 files changed, 0 insertions, 0 deletions