[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
[Qemu-devel] [PATCH] sPAPR: implement route_intx_to_irq to get gsi of pc
From: |
Liu Ping Fan |
Subject: |
[Qemu-devel] [PATCH] sPAPR: implement route_intx_to_irq to get gsi of pci device. |
Date: |
Sun, 22 Sep 2013 19:47:58 +0800 |
This is useful when pci assignment happens on sPAPR.
Signed-off-by: Liu Ping Fan <address@hidden>
---
This patch will apply on patches which enable xics in kernel.
---
hw/intc/xics.c | 5 +++++
hw/ppc/spapr_pci.c | 14 ++++++++++++++
include/hw/ppc/xics.h | 1 +
3 files changed, 20 insertions(+)
diff --git a/hw/intc/xics.c b/hw/intc/xics.c
index bb018d1..02cdab8 100644
--- a/hw/intc/xics.c
+++ b/hw/intc/xics.c
@@ -442,6 +442,11 @@ void xics_set_irq_type(XICSState *icp, int irq, bool lsi)
icp->ics->islsi[irq - icp->ics->offset] = lsi;
}
+int xics_get_irq_offset(XICSState *icp)
+{
+ return icp->ics->offset;
+}
+
/*
* Guest interfaces
*/
diff --git a/hw/ppc/spapr_pci.c b/hw/ppc/spapr_pci.c
index 9b6ee32..6d3657a 100644
--- a/hw/ppc/spapr_pci.c
+++ b/hw/ppc/spapr_pci.c
@@ -432,6 +432,19 @@ 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_phb_route_intx_to_irq(void *opaque, int pirq_pin)
+{
+ int gsi;
+ PCIINTxRoute route;
+ sPAPRPHBState *phb = opaque;
+
+ gsi = phb->lsi_table[pirq_pin].irq;
+ gsi += xics_get_irq_offset(spapr->icp);
+ route.mode = PCI_INTX_ENABLED;
+ route.irq = gsi;
+ return route;
+}
+
/*
* MSI/MSIX memory region implementation.
* The handler handles both MSI and MSIX.
@@ -595,6 +608,7 @@ static int spapr_phb_init(SysBusDevice *s)
pci_spapr_set_irq, pci_spapr_map_irq, sphb,
&sphb->memspace, &sphb->iospace,
PCI_DEVFN(0, 0), PCI_NUM_PINS, TYPE_PCI_BUS);
+ pci_bus_set_route_irq_fn(bus, spapr_phb_route_intx_to_irq);
phb->bus = bus;
sphb->dma_window_start = 0;
diff --git a/include/hw/ppc/xics.h b/include/hw/ppc/xics.h
index 66364c5..6ed1f4d 100644
--- a/include/hw/ppc/xics.h
+++ b/include/hw/ppc/xics.h
@@ -97,6 +97,7 @@ struct ICSIRQState {
qemu_irq xics_get_qirq(XICSState *icp, int irq);
void xics_set_irq_type(XICSState *icp, int irq, bool lsi);
+int xics_get_irq_offset(XICSState *icp);
void xics_cpu_setup(XICSState *icp, PowerPCCPU *cpu);
--
1.8.1.4
- [Qemu-devel] [PATCH] sPAPR: implement route_intx_to_irq to get gsi of pci device.,
Liu Ping Fan <=