diff options
Diffstat (limited to 'sys/i386/pci/pci_pir.c')
| -rw-r--r-- | sys/i386/pci/pci_pir.c | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/sys/i386/pci/pci_pir.c b/sys/i386/pci/pci_pir.c index faeb0a7..caf5b6e 100644 --- a/sys/i386/pci/pci_pir.c +++ b/sys/i386/pci/pci_pir.c @@ -327,6 +327,15 @@ pci_pir_initial_irqs(struct PIR_entry *entry, struct PIR_intpin *intpin, if (irq == PCI_INVALID_IRQ || irq == pci_link->pl_irq) return; + /* Don't trust any BIOS IRQs greater than 15. */ + if (irq >= NUM_ISA_INTERRUPTS) { + printf( + "$PIR: Ignoring invalid BIOS IRQ %d from %d.%d.INT%c for link %#x\n", + irq, entry->pe_bus, entry->pe_device, pin + 'A', + pci_link->pl_id); + return; + } + /* * If we don't have an IRQ for this link yet, then we trust the * BIOS, even if it seems invalid from the $PIR entries. @@ -334,7 +343,7 @@ pci_pir_initial_irqs(struct PIR_entry *entry, struct PIR_intpin *intpin, if (pci_link->pl_irq == PCI_INVALID_IRQ) { if (!pci_pir_valid_irq(pci_link, irq)) printf( - "$PIR: Using invalid BIOS IRQ %d from %d.%d.INT%c is for link %#x\n", + "$PIR: Using invalid BIOS IRQ %d from %d.%d.INT%c for link %#x\n", irq, entry->pe_bus, entry->pe_device, pin + 'A', pci_link->pl_id); pci_link->pl_irq = irq; |
