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-rw-r--r--hw/pci/pci.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/hw/pci/pci.c b/hw/pci/pci.c
index ed43111bce..a88160236e 100644
--- a/hw/pci/pci.c
+++ b/hw/pci/pci.c
@@ -674,6 +674,10 @@ static void pci_init_mask_bridge(PCIDevice *d)
#define PCI_BRIDGE_CTL_SEC_DISCARD 0x200 /* Secondary discard timer */
#define PCI_BRIDGE_CTL_DISCARD_STATUS 0x400 /* Discard timer status */
#define PCI_BRIDGE_CTL_DISCARD_SERR 0x800 /* Discard timer SERR# enable */
+/*
+ * TODO: Bridges default to 10-bit VGA decoding but we currently only
+ * implement 16-bit decoding (no alias support).
+ */
pci_set_word(d->wmask + PCI_BRIDGE_CONTROL,
PCI_BRIDGE_CTL_PARITY |
PCI_BRIDGE_CTL_SERR |