diff options
Diffstat (limited to 'hw/acpi/pcihp.c')
| -rw-r--r-- | hw/acpi/pcihp.c | 23 |
1 files changed, 18 insertions, 5 deletions
diff --git a/hw/acpi/pcihp.c b/hw/acpi/pcihp.c index 974f01c114..1ce6fc2768 100644 --- a/hw/acpi/pcihp.c +++ b/hw/acpi/pcihp.c @@ -46,8 +46,9 @@ # define ACPI_PCIHP_DPRINTF(format, ...) do { } while (0) #endif -#define PCI_HOTPLUG_ADDR 0xae00 -#define PCI_HOTPLUG_SIZE 0x0014 +#define ACPI_PCIHP_ADDR 0xae00 +#define ACPI_PCIHP_SIZE 0x0014 +#define ACPI_PCIHP_LEGACY_SIZE 0x000f #define PCI_UP_BASE 0x0000 #define PCI_DOWN_BASE 0x0004 #define PCI_EJ_BASE 0x0008 @@ -277,12 +278,24 @@ static const MemoryRegionOps acpi_pcihp_io_ops = { void acpi_pcihp_init(AcpiPciHpState *s, PCIBus *root_bus, MemoryRegion *address_space_io, bool bridges_enabled) { + uint16_t io_size = ACPI_PCIHP_SIZE; + s->root= root_bus; s->legacy_piix = !bridges_enabled; + + if (s->legacy_piix) { + unsigned *bus_bsel = g_malloc(sizeof *bus_bsel); + + io_size = ACPI_PCIHP_LEGACY_SIZE; + + *bus_bsel = ACPI_PCIHP_BSEL_DEFAULT; + object_property_add_uint32_ptr(OBJECT(root_bus), ACPI_PCIHP_PROP_BSEL, + bus_bsel, NULL); + } + memory_region_init_io(&s->io, NULL, &acpi_pcihp_io_ops, s, - "acpi-pci-hotplug", - PCI_HOTPLUG_SIZE); - memory_region_add_subregion(address_space_io, PCI_HOTPLUG_ADDR, &s->io); + "acpi-pci-hotplug", io_size); + memory_region_add_subregion(address_space_io, ACPI_PCIHP_ADDR, &s->io); } const VMStateDescription vmstate_acpi_pcihp_pci_status = { |