diff options
Diffstat (limited to 'hw/i386/acpi-build.c')
| -rw-r--r-- | hw/i386/acpi-build.c | 143 |
1 files changed, 119 insertions, 24 deletions
diff --git a/hw/i386/acpi-build.c b/hw/i386/acpi-build.c index b1a7ebb8e3..b667d31de5 100644 --- a/hw/i386/acpi-build.c +++ b/hw/i386/acpi-build.c @@ -643,6 +643,21 @@ static inline char acpi_get_hex(uint32_t val) #define ACPI_PCIHP_SIZEOF (*ssdt_pcihp_end - *ssdt_pcihp_start) #define ACPI_PCIHP_AML (ssdp_pcihp_aml + *ssdt_pcihp_start) +#define ACPI_PCINOHP_OFFSET_HEX (*ssdt_pcinohp_name - *ssdt_pcinohp_start + 1) +#define ACPI_PCINOHP_OFFSET_ADR (*ssdt_pcinohp_adr - *ssdt_pcinohp_start) +#define ACPI_PCINOHP_SIZEOF (*ssdt_pcinohp_end - *ssdt_pcinohp_start) +#define ACPI_PCINOHP_AML (ssdp_pcihp_aml + *ssdt_pcinohp_start) + +#define ACPI_PCIVGA_OFFSET_HEX (*ssdt_pcivga_name - *ssdt_pcivga_start + 1) +#define ACPI_PCIVGA_OFFSET_ADR (*ssdt_pcivga_adr - *ssdt_pcivga_start) +#define ACPI_PCIVGA_SIZEOF (*ssdt_pcivga_end - *ssdt_pcivga_start) +#define ACPI_PCIVGA_AML (ssdp_pcihp_aml + *ssdt_pcivga_start) + +#define ACPI_PCIQXL_OFFSET_HEX (*ssdt_pciqxl_name - *ssdt_pciqxl_start + 1) +#define ACPI_PCIQXL_OFFSET_ADR (*ssdt_pciqxl_adr - *ssdt_pciqxl_start) +#define ACPI_PCIQXL_SIZEOF (*ssdt_pciqxl_end - *ssdt_pciqxl_start) +#define ACPI_PCIQXL_AML (ssdp_pcihp_aml + *ssdt_pciqxl_start) + #define ACPI_SSDT_SIGNATURE 0x54445353 /* SSDT */ #define ACPI_SSDT_HEADER_LENGTH 36 @@ -677,6 +692,33 @@ static void patch_pcihp(int slot, uint8_t *ssdt_ptr) ssdt_ptr[ACPI_PCIHP_OFFSET_ADR + 2] = slot; } +static void patch_pcinohp(int slot, uint8_t *ssdt_ptr) +{ + unsigned devfn = PCI_DEVFN(slot, 0); + + ssdt_ptr[ACPI_PCINOHP_OFFSET_HEX] = acpi_get_hex(devfn >> 4); + ssdt_ptr[ACPI_PCINOHP_OFFSET_HEX + 1] = acpi_get_hex(devfn); + ssdt_ptr[ACPI_PCINOHP_OFFSET_ADR + 2] = slot; +} + +static void patch_pcivga(int slot, uint8_t *ssdt_ptr) +{ + unsigned devfn = PCI_DEVFN(slot, 0); + + ssdt_ptr[ACPI_PCIVGA_OFFSET_HEX] = acpi_get_hex(devfn >> 4); + ssdt_ptr[ACPI_PCIVGA_OFFSET_HEX + 1] = acpi_get_hex(devfn); + ssdt_ptr[ACPI_PCIVGA_OFFSET_ADR + 2] = slot; +} + +static void patch_pciqxl(int slot, uint8_t *ssdt_ptr) +{ + unsigned devfn = PCI_DEVFN(slot, 0); + + ssdt_ptr[ACPI_PCIQXL_OFFSET_HEX] = acpi_get_hex(devfn >> 4); + ssdt_ptr[ACPI_PCIQXL_OFFSET_HEX + 1] = acpi_get_hex(devfn); + ssdt_ptr[ACPI_PCIQXL_OFFSET_ADR + 2] = slot; +} + /* Assign BSEL property to all buses. In the future, this can be changed * to only assign to buses that support hotplug. */ @@ -737,6 +779,10 @@ static void build_pci_bus_end(PCIBus *bus, void *bus_state) AcpiBuildPciBusHotplugState *parent = child->parent; GArray *bus_table = build_alloc_array(); DECLARE_BITMAP(slot_hotplug_enable, PCI_SLOT_MAX); + DECLARE_BITMAP(slot_device_present, PCI_SLOT_MAX); + DECLARE_BITMAP(slot_device_system, PCI_SLOT_MAX); + DECLARE_BITMAP(slot_device_vga, PCI_SLOT_MAX); + DECLARE_BITMAP(slot_device_qxl, PCI_SLOT_MAX); uint8_t op; int i; QObject *bsel; @@ -764,40 +810,82 @@ static void build_pci_bus_end(PCIBus *bus, void *bus_state) build_append_byte(bus_table, 0x08); /* NameOp */ build_append_nameseg(bus_table, "BSEL"); build_append_int(bus_table, qint_get_int(qobject_to_qint(bsel))); - memset(slot_hotplug_enable, 0xff, sizeof slot_hotplug_enable); + } else { + /* No bsel - no slots are hot-pluggable */ + memset(slot_hotplug_enable, 0x00, sizeof slot_hotplug_enable); + } - for (i = 0; i < ARRAY_SIZE(bus->devices); ++i) { - DeviceClass *dc; - PCIDeviceClass *pc; - PCIDevice *pdev = bus->devices[i]; + memset(slot_device_present, 0x00, sizeof slot_device_present); + memset(slot_device_system, 0x00, sizeof slot_device_present); + memset(slot_device_vga, 0x00, sizeof slot_device_vga); + memset(slot_device_qxl, 0x00, sizeof slot_device_qxl); - if (!pdev) { - continue; - } + for (i = 0; i < ARRAY_SIZE(bus->devices); i += PCI_FUNC_MAX) { + DeviceClass *dc; + PCIDeviceClass *pc; + PCIDevice *pdev = bus->devices[i]; + int slot = PCI_SLOT(i); - pc = PCI_DEVICE_GET_CLASS(pdev); - dc = DEVICE_GET_CLASS(pdev); + if (!pdev) { + continue; + } - if (!dc->hotpluggable || pc->is_bridge) { - int slot = PCI_SLOT(i); + set_bit(slot, slot_device_present); + pc = PCI_DEVICE_GET_CLASS(pdev); + dc = DEVICE_GET_CLASS(pdev); - clear_bit(slot, slot_hotplug_enable); - } + if (pc->class_id == PCI_CLASS_BRIDGE_ISA) { + set_bit(slot, slot_device_system); } - /* Append Device object for each slot which supports eject */ - for (i = 0; i < PCI_SLOT_MAX; i++) { - bool can_eject = test_bit(i, slot_hotplug_enable); - if (can_eject) { - void *pcihp = acpi_data_push(bus_table, - ACPI_PCIHP_SIZEOF); - memcpy(pcihp, ACPI_PCIHP_AML, ACPI_PCIHP_SIZEOF); - patch_pcihp(i, pcihp); - bus_hotplug_support = true; + if (pc->class_id == PCI_CLASS_DISPLAY_VGA) { + set_bit(slot, slot_device_vga); + + if (object_dynamic_cast(OBJECT(pdev), "qxl-vga")) { + set_bit(slot, slot_device_qxl); } } + if (!dc->hotpluggable || pc->is_bridge) { + clear_bit(slot, slot_hotplug_enable); + } + } + + /* Append Device object for each slot */ + for (i = 0; i < PCI_SLOT_MAX; i++) { + bool can_eject = test_bit(i, slot_hotplug_enable); + bool present = test_bit(i, slot_device_present); + bool vga = test_bit(i, slot_device_vga); + bool qxl = test_bit(i, slot_device_qxl); + bool system = test_bit(i, slot_device_system); + if (can_eject) { + void *pcihp = acpi_data_push(bus_table, + ACPI_PCIHP_SIZEOF); + memcpy(pcihp, ACPI_PCIHP_AML, ACPI_PCIHP_SIZEOF); + patch_pcihp(i, pcihp); + bus_hotplug_support = true; + } else if (qxl) { + void *pcihp = acpi_data_push(bus_table, + ACPI_PCIQXL_SIZEOF); + memcpy(pcihp, ACPI_PCIQXL_AML, ACPI_PCIQXL_SIZEOF); + patch_pciqxl(i, pcihp); + } else if (vga) { + void *pcihp = acpi_data_push(bus_table, + ACPI_PCIVGA_SIZEOF); + memcpy(pcihp, ACPI_PCIVGA_AML, ACPI_PCIVGA_SIZEOF); + patch_pcivga(i, pcihp); + } else if (system) { + /* Nothing to do: system devices are in DSDT. */ + } else if (present) { + void *pcihp = acpi_data_push(bus_table, + ACPI_PCINOHP_SIZEOF); + memcpy(pcihp, ACPI_PCINOHP_AML, ACPI_PCINOHP_SIZEOF); + patch_pcinohp(i, pcihp); + } + } + + if (bsel) { method = build_alloc_method("DVNT", 2); for (i = 0; i < PCI_SLOT_MAX; i++) { @@ -976,7 +1064,14 @@ build_ssdt(GArray *table_data, GArray *linker, { AcpiBuildPciBusHotplugState hotplug_state; - PCIBus *bus = find_i440fx(); /* TODO: Q35 support */ + Object *pci_host; + PCIBus *bus = NULL; + bool ambiguous; + + pci_host = object_resolve_path_type("", TYPE_PCI_HOST_BRIDGE, &ambiguous); + if (!ambiguous && pci_host) { + bus = PCI_HOST_BRIDGE(pci_host)->bus; + } build_pci_bus_state_init(&hotplug_state, NULL); |