diff options
Diffstat (limited to 'drivers/pci/pci-bridge-emul.c')
| -rw-r--r-- | drivers/pci/pci-bridge-emul.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/pci/pci-bridge-emul.c b/drivers/pci/pci-bridge-emul.c index ceacba03e714..a16f9e30099e 100644 --- a/drivers/pci/pci-bridge-emul.c +++ b/drivers/pci/pci-bridge-emul.c @@ -382,6 +382,15 @@ int pci_bridge_emul_init(struct pci_bridge_emul *bridge, bridge->pci_regs_behavior[PCI_PREF_MEMORY_BASE / 4].rw = 0; } + if (flags & PCI_BRIDGE_EMUL_NO_IO_FORWARD) { + bridge->pci_regs_behavior[PCI_COMMAND / 4].ro |= PCI_COMMAND_IO; + bridge->pci_regs_behavior[PCI_COMMAND / 4].rw &= ~PCI_COMMAND_IO; + bridge->pci_regs_behavior[PCI_IO_BASE / 4].ro |= GENMASK(15, 0); + bridge->pci_regs_behavior[PCI_IO_BASE / 4].rw &= ~GENMASK(15, 0); + bridge->pci_regs_behavior[PCI_IO_BASE_UPPER16 / 4].ro = ~0; + bridge->pci_regs_behavior[PCI_IO_BASE_UPPER16 / 4].rw = 0; + } + return 0; } EXPORT_SYMBOL_GPL(pci_bridge_emul_init); |