From 38afd772f802ff787ea16af73b0c0d24a8c46b6c Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?C=C3=A9dric=20Le=20Goater?= Date: Mon, 13 May 2019 10:42:33 +0200 Subject: spapr/xive: add KVM support MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit This introduces a set of helpers when KVM is in use, which create the KVM XIVE device, initialize the interrupt sources at a KVM level and connect the interrupt presenters to the vCPU. They also handle the initialization of the TIMA and the source ESB memory regions of the controller. These have a different type under KVM. They are 'ram device' memory mappings, similarly to VFIO, exposed to the guest and the associated VMAs on the host are populated dynamically with the appropriate pages using a fault handler. Signed-off-by: Cédric Le Goater Reviewed-by: David Gibson Message-Id: <20190513084245.25755-3-clg@kaod.org> Signed-off-by: David Gibson --- hw/ppc/Kconfig | 5 +++++ hw/ppc/spapr_irq.c | 6 +++++- 2 files changed, 10 insertions(+), 1 deletion(-) (limited to 'hw/ppc') diff --git a/hw/ppc/Kconfig b/hw/ppc/Kconfig index a346515..f927ec9 100644 --- a/hw/ppc/Kconfig +++ b/hw/ppc/Kconfig @@ -122,3 +122,8 @@ config XIVE_SPAPR default y depends on PSERIES select XIVE + +config XIVE_KVM + bool + default y + depends on XIVE_SPAPR && KVM diff --git a/hw/ppc/spapr_irq.c b/hw/ppc/spapr_irq.c index b1f79ea..5c4a448 100644 --- a/hw/ppc/spapr_irq.c +++ b/hw/ppc/spapr_irq.c @@ -372,7 +372,11 @@ static void spapr_irq_set_irq_xive(void *opaque, int srcno, int val) { SpaprMachineState *spapr = opaque; - xive_source_set_irq(&spapr->xive->source, srcno, val); + if (kvm_irqchip_in_kernel()) { + kvmppc_xive_source_set_irq(&spapr->xive->source, srcno, val); + } else { + xive_source_set_irq(&spapr->xive->source, srcno, val); + } } static const char *spapr_irq_get_nodename_xive(SpaprMachineState *spapr) -- cgit v1.1