Benjamin Herrenschmidt bf4159da47 KVM: PPC: Book3S HV: Enable use of the new XIVE "single escalation" feature ...

That feature, provided by Power9 DD2.0 and later, when supported
by newer OPAL versions, allows us to sacrifice a queue (priority 7)
in favor of merging all the escalation interrupts of the queues
of a single VP into a single interrupt.

This reduces the number of host interrupts used up by KVM guests
especially when those guests use multiple priorities.

It will also enable a future change to control the masking of the
escalation interrupts more precisely to avoid spurious ones.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@ozlabs.org>

2018-01-19 12:10:21 +11:00

..

common.c

powerpc/xive: Add interrupt flag to disable automatic EOI

2018-01-12 15:24:44 +11:00

Kconfig

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

Makefile

powerpc/xive: guest exploitation of the XIVE interrupt controller

2017-09-02 21:02:35 +10:00

native.c

KVM: PPC: Book3S HV: Enable use of the new XIVE "single escalation" feature

2018-01-19 12:10:21 +11:00

spapr.c

powerpc/xive: Fix IPI reset

2017-10-04 22:01:15 +11:00

xive-internal.h

powerpc/xive: introduce H_INT_ESB hcall

2017-09-02 21:02:37 +10:00