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Each PCI Bridge has a set of implied VGA regions that are enabled when the VGA bit is set in the bridge control register. This allows VGA devices behind bridges. Unfortunately with VGA Enable, which we formerly allowed but didn't back, comes along some required VGA baggage. VGA Palette Snooping is required, along with VGA 16-bit decoding. We don't yet have support for palette snooping. We also don't have support for 10-bit VGA aliases, the default mode, but we enable the register, even on root ports, to avoid confusing guests. Fortunately there's likely nothing from this century that requires these features, so the missing bits are noted with TODOs. Signed-off-by: Alex Williamson <alex.williamson@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com> |
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| .. | ||
| Makefile.objs | ||
| msi.c | ||
| msi.h | ||
| msix.c | ||
| msix.h | ||
| pci-hotplug.c | ||
| pci-stub.c | ||
| pci.c | ||
| pci.h | ||
| pci_bridge.c | ||
| pci_bridge.h | ||
| pci_bus.h | ||
| pci_host.c | ||
| pci_host.h | ||
| pci_ids.h | ||
| pci_regs.h | ||
| pcie.c | ||
| pcie.h | ||
| pcie_aer.c | ||
| pcie_aer.h | ||
| pcie_host.c | ||
| pcie_host.h | ||
| pcie_port.c | ||
| pcie_port.h | ||
| pcie_regs.h | ||
| shpc.c | ||
| shpc.h | ||
| slotid_cap.c | ||
| slotid_cap.h | ||