From: Pranavkumar Sawargaonkar <pranavkumar@linaro.org>
Date: Thu, 14 Sep 2017 17:43:18 +0000 (+0100)
Subject: hw/pci-host/gpex: Set INTx index/gsi mapping
X-Git-Tag: qemu-xen-4.11.0-rc1~175^2~3
X-Git-Url: http://xenbits.xensource.com/gitweb?a=commitdiff_plain;h=70bfdce6a1263fd06144ecc1c3727c44e562d89b;p=qemu-xen.git

hw/pci-host/gpex: Set INTx index/gsi mapping

To implement INTx to gsi routing we need to pass the gpex host
bridge the gsi associated to each INTx index. Let's introduce
irq_num array and gpex_set_irq_num setter function.

Signed-off-by: Pranavkumar Sawargaonkar <pranavkumar@linaro.org>
Signed-off-by: Tushar Jagad <tushar.jagad@linaro.org>
Signed-off-by: Eric Auger <eric.auger@redhat.com>
Tested-by: Feng Kan <fkan@apm.com>
Reviewed-by: Andrew Jones <drjones@redhat.com>
Message-id: 1505296004-6798-2-git-send-email-eric.auger@redhat.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
---

diff --git a/hw/pci-host/gpex.c b/hw/pci-host/gpex.c
index 83084b9aab..41a884da3f 100644
--- a/hw/pci-host/gpex.c
+++ b/hw/pci-host/gpex.c
@@ -43,6 +43,16 @@ static void gpex_set_irq(void *opaque, int irq_num, int level)
     qemu_set_irq(s->irq[irq_num], level);
 }
 
+int gpex_set_irq_num(GPEXHost *s, int index, int gsi)
+{
+    if (index >= GPEX_NUM_IRQS) {
+        return -EINVAL;
+    }
+
+    s->irq_num[index] = gsi;
+    return 0;
+}
+
 static void gpex_host_realize(DeviceState *dev, Error **errp)
 {
     PCIHostState *pci = PCI_HOST_BRIDGE(dev);
diff --git a/include/hw/pci-host/gpex.h b/include/hw/pci-host/gpex.h
index 68c93488c9..aef38b881b 100644
--- a/include/hw/pci-host/gpex.h
+++ b/include/hw/pci-host/gpex.h
@@ -51,6 +51,9 @@ typedef struct GPEXHost {
     MemoryRegion io_ioport;
     MemoryRegion io_mmio;
     qemu_irq irq[GPEX_NUM_IRQS];
+    int irq_num[GPEX_NUM_IRQS];
 } GPEXHost;
 
+int gpex_set_irq_num(GPEXHost *s, int index, int gsi);
+
 #endif /* HW_GPEX_H */