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-rw-r--r--hw/pci/pci.c6
1 files changed, 4 insertions, 2 deletions
diff --git a/hw/pci/pci.c b/hw/pci/pci.c
index 52cbab7..00554a0 100644
--- a/hw/pci/pci.c
+++ b/hw/pci/pci.c
@@ -1028,8 +1028,10 @@ static pcibus_t pci_bar_address(PCIDevice *d,
}
new_addr = pci_get_long(d->config + bar) & ~(size - 1);
last_addr = new_addr + size - 1;
- /* NOTE: we have only 64K ioports on PC */
- if (last_addr <= new_addr || new_addr == 0 || last_addr > UINT16_MAX) {
+ /* Check if 32 bit BAR wraps around explicitly.
+ * TODO: make priorities correct and remove this work around.
+ */
+ if (last_addr <= new_addr || new_addr == 0 || last_addr >= UINT32_MAX) {
return PCI_BAR_UNMAPPED;
}
return new_addr;
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