KVM: PPC: Book3S HV: XIVE: Show detailed configuration in debug output

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This is useful to track allocation of the HW resources on per guest
basis. Making sure IPIs are local to the chip of the vCPUs reduces
rerouting between interrupt controllers and gives better performance
in case of pinning. Checking the distribution of VP structures on the
chips also helps in reducing PowerBUS traffic.

[ clg: resurrected show_sources and reworked ouput ]

Signed-off-by: Greg Kurz <groug@kaod.org>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20201210171450.1933725-2-clg@kaod.org

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Cédric Le Goater 2020-12-10 18:14:38 +01:00 • committed by Michael Ellerman

parent 0be47634db

commit 9898367500

3 changed files with 82 additions and 17 deletions

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76

arch/powerpc/kvm/book3s_xive.c

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2

arch/powerpc/kvm/book3s_xive.h

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21

arch/powerpc/kvm/book3s_xive_native.c

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