KVM: PPC: Book3S HV P9: Avoid SPR scoreboard stalls

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Avoid interleaving mfSPR and mtSPR to reduce SPR scoreboard stalls.

Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20211123095231.1036501-26-npiggin@gmail.com

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Nicholas Piggin 2021-11-23 19:52:03 +10:00 • committed by Michael Ellerman

parent cb2553a093

commit 9a1e530bbb

2 changed files with 15 additions and 12 deletions

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8

arch/powerpc/kvm/book3s_hv.c

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19

arch/powerpc/kvm/book3s_hv_p9_entry.c

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