From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:33110) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1VZovV-0003o0-08 for qemu-devel@nongnu.org; Fri, 25 Oct 2013 17:28:24 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1VZovJ-0002a4-JL for qemu-devel@nongnu.org; Fri, 25 Oct 2013 17:28:12 -0400 From: Alexander Graf Date: Fri, 25 Oct 2013 23:27:47 +0200 Message-Id: <1382736474-32128-23-git-send-email-agraf@suse.de> In-Reply-To: <1382736474-32128-1-git-send-email-agraf@suse.de> References: <1382736474-32128-1-git-send-email-agraf@suse.de> Subject: [Qemu-devel] [PULL 22/29] spapr-pci: enable irqfd for INTx List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: QEMU Developers Cc: Blue Swirl , Alexey Kardashevskiy , "qemu-ppc@nongnu.org list:PowerPC" , Anthony Liguori , Aurelien Jarno From: Alexey Kardashevskiy This enables IRQFD for LSI (level triggered INTx interrupts) by adding a spapr_route_intx_pin_to_irq() callback to the sPAPR PCI host bus. This callback is called to know the global interrupt number to link resampling fd with IRQFD's fd in KVM. Signed-off-by: Alexey Kardashevskiy Signed-off-by: Alexander Graf --- hw/ppc/spapr_pci.c | 13 +++++++++++++ 1 file changed, 13 insertions(+) diff --git a/hw/ppc/spapr_pci.c b/hw/ppc/spapr_pci.c index 9b6ee32..edb4cb0 100644 --- a/hw/ppc/spapr_pci.c +++ b/hw/ppc/spapr_pci.c @@ -432,6 +432,17 @@ static void pci_spapr_set_irq(void *opaque, int irq_num, int level) qemu_set_irq(spapr_phb_lsi_qirq(phb, irq_num), level); } +static PCIINTxRoute spapr_route_intx_pin_to_irq(void *opaque, int pin) +{ + sPAPRPHBState *sphb = SPAPR_PCI_HOST_BRIDGE(opaque); + PCIINTxRoute route; + + route.mode = PCI_INTX_ENABLED; + route.irq = sphb->lsi_table[pin].irq; + + return route; +} + /* * MSI/MSIX memory region implementation. * The handler handles both MSI and MSIX. @@ -610,6 +621,8 @@ static int spapr_phb_init(SysBusDevice *s) pci_setup_iommu(bus, spapr_pci_dma_iommu, sphb); + pci_bus_set_route_irq_fn(bus, spapr_route_intx_pin_to_irq); + QLIST_INSERT_HEAD(&spapr->phbs, sphb, list); /* Initialize the LSI table */ -- 1.8.1.4