apb: implement PCI bus error interrupt map registers

Both OpenBSD and FreeBSD SPARC64 attempt to read the interrupt map from the
hardware and will fail if the correct ino isn't present.

Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>

diff --git a/hw/pci-host/apb.c b/hw/pci-host/apb.c
index 762ebdd8fe259a608974e1398aca847c7dce3175..f573875baf9e36511ce106af21bbe880afa362d0 100644 (file)
--- a/hw/pci-host/apb.c
+++ b/hw/pci-host/apb.c
@@ -142,6 +142,7 @@ typedef struct APBState {
     IOMMUState iommu;
     uint32_t pci_control[16];
     uint32_t pci_irq_map[8];
+    uint32_t pci_err_irq_map[4];
     uint32_t obio_irq_map[32];
     qemu_irq *pbm_irqs;
     qemu_irq *ivec_irqs;
@@ -437,7 +438,7 @@ static void apb_config_writel (void *opaque, hwaddr addr,
             pbm_check_irqs(s);
         }
         break;
-    case 0x1000 ... 0x1080: /* OBIO interrupt control */
+    case 0x1000 ... 0x107f: /* OBIO interrupt control */
         if (addr & 4) {
             unsigned int ino = ((addr & 0xff) >> 3);
             s->obio_irq_map[ino] &= PBM_PCI_IMR_MASK;
@@ -515,13 +516,20 @@ static uint64_t apb_config_readl (void *opaque,
             val = 0;
         }
         break;
-    case 0x1000 ... 0x1080: /* OBIO interrupt control */
+    case 0x1000 ... 0x107f: /* OBIO interrupt control */
         if (addr & 4) {
             val = s->obio_irq_map[(addr & 0xff) >> 3];
         } else {
             val = 0;
         }
         break;
+    case 0x1080 ... 0x108f: /* PCI bus error */
+        if (addr & 4) {
+            val = s->pci_err_irq_map[(addr & 0xf) >> 3];
+        } else {
+            val = 0;
+        }
+        break;
     case 0x2000 ... 0x202f: /* PCI control */
         val = s->pci_control[(addr & 0x3f) >> 2];
         break;
@@ -753,6 +761,9 @@ static int pci_pbm_init_device(SysBusDevice *dev)
     for (i = 0; i < 8; i++) {
         s->pci_irq_map[i] = (0x1f << 6) | (i << 2);
     }
+    for (i = 0; i < 2; i++) {
+        s->pci_err_irq_map[i] = (0x1f << 6) | 0x30;
+    }
     for (i = 0; i < 32; i++) {
         s->obio_irq_map[i] = ((0x1f << 6) | 0x20) + i;
     }