KVM: PPC: Book3S HV P9: Use large decrementer for HDEC

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On processors that don't suppress the HDEC exceptions when LPCR[HDICE]=0,
this could help reduce needless guest exits due to leftover exceptions on
entering the guest.

Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Reviewed-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20211123095231.1036501-6-npiggin@gmail.com

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Nicholas Piggin 2021-11-23 19:51:43 +10:00 • committed by Michael Ellerman

parent 4ebbd075bc

commit 9581991a60

3 changed files with 5 additions and 1 deletions

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2

arch/powerpc/include/asm/time.h

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arch/powerpc/kernel/time.c

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arch/powerpc/kvm/book3s_hv_p9_entry.c

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