diff options
Diffstat (limited to 'hw/pci.c')
| -rw-r--r-- | hw/pci.c | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/hw/pci.c b/hw/pci.c index 5cf50e0562..b462bd6246 100644 --- a/hw/pci.c +++ b/hw/pci.c @@ -524,7 +524,14 @@ static void pci_update_mappings(PCIDevice *d) mappings, we handle specific values as invalid mappings. */ if (last_addr <= new_addr || new_addr == 0 || - last_addr == PCI_BAR_UNMAPPED) { + last_addr == PCI_BAR_UNMAPPED || + + /* Now pcibus_t is 64bit. + * Check if 32 bit BAR wrap around explicitly. + * Without this, PC ide doesn't work well. + * TODO: remove this work around. + */ + last_addr >= UINT32_MAX) { new_addr = PCI_BAR_UNMAPPED; } } else { |