diff options
| author | Nicholas Piggin <npiggin@gmail.com> | 2021-11-23 19:51:47 +1000 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2021-11-24 21:08:57 +1100 |
| commit | 46f9caf1a246a5c0622fa8cc7e673658e925f97e (patch) | |
| tree | 588a28905c70adcd36e135af702a8e4293b20288 /tools/perf/scripts/python/netdev-times.py | |
| parent | KVM: PPC: Book3S HV: POWER10 enable HAIL when running radix guests (diff) | |
| download | linux-46f9caf1a246a5c0622fa8cc7e673658e925f97e.tar.gz linux-46f9caf1a246a5c0622fa8cc7e673658e925f97e.zip | |
powerpc/64s: Keep AMOR SPR a constant ~0 at runtime
This register controls supervisor SPR modifications, and as such is only
relevant for KVM. KVM always sets AMOR to ~0 on guest entry, and never
restores it coming back out to the host, so it can be kept constant and
avoid the mtSPR in KVM guest entry.
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/20211123095231.1036501-10-npiggin@gmail.com
Diffstat (limited to 'tools/perf/scripts/python/netdev-times.py')
0 files changed, 0 insertions, 0 deletions