diff options
| -rw-r--r-- | hw/gt64xxx.c | 16 |
1 files changed, 11 insertions, 5 deletions
diff --git a/hw/gt64xxx.c b/hw/gt64xxx.c index ccb6a7c1a2..2b01da70b8 100644 --- a/hw/gt64xxx.c +++ b/hw/gt64xxx.c @@ -222,18 +222,24 @@ typedef PCIHostState GT64120PCIState; typedef struct GT64120State { GT64120PCIState *pci; uint32_t regs[GT_REGS]; + target_phys_addr_t PCI0IO_start; + target_phys_addr_t PCI0IO_length; } GT64120State; static void gt64120_pci_mapping(GT64120State *s) { - target_phys_addr_t start, length; - /* Update IO mapping */ if ((s->regs[GT_PCI0IOLD] & 0x7f) <= s->regs[GT_PCI0IOHD]) { - start = s->regs[GT_PCI0IOLD] << 21; - length = ((s->regs[GT_PCI0IOHD] + 1) - (s->regs[GT_PCI0IOLD] & 0x7f)) << 21; - isa_mmio_init(start, length); + /* Unmap old IO address */ + if (s->PCI0IO_length) + { + cpu_register_physical_memory(s->PCI0IO_start, s->PCI0IO_length, IO_MEM_UNASSIGNED); + } + /* Map new IO address */ + s->PCI0IO_start = s->regs[GT_PCI0IOLD] << 21; + s->PCI0IO_length = ((s->regs[GT_PCI0IOHD] + 1) - (s->regs[GT_PCI0IOLD] & 0x7f)) << 21; + isa_mmio_init(s->PCI0IO_start, s->PCI0IO_length); } } |