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| author | Nicholas Piggin <npiggin@gmail.com> | 2021-11-23 19:51:57 +1000 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2021-11-24 21:08:58 +1100 |
| commit | 34e119c96b2b381278d1ddf6b1708678462daba4 (patch) | |
| tree | 1fd025d1ff2fea5312a7f32232101c9cc49897ec /tools/perf/scripts/python/bin/flamegraph-report | |
| parent | KVM: PPC: Book3S HV P9: Move SPRG restore to restore_p9_host_os_sprs (diff) | |
| download | linux-34e119c96b2b381278d1ddf6b1708678462daba4.tar.gz linux-34e119c96b2b381278d1ddf6b1708678462daba4.zip | |
KVM: PPC: Book3S HV P9: Reduce mtmsrd instructions required to save host SPRs
This reduces the number of mtmsrd required to enable facility bits when
saving/restoring registers, by having the KVM code set all bits up front
rather than using individual facility functions that set their particular
MSR bits.
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Reviewed-by: Fabiano Rosas <farosas@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20211123095231.1036501-20-npiggin@gmail.com
Diffstat (limited to 'tools/perf/scripts/python/bin/flamegraph-report')
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