Exemplo n.º 1
0
void aml_append(Aml *parent_ctx, Aml *child)
{
    GArray *buf = build_alloc_array();
    build_append_array(buf, child->buf);

    switch (child->block_flags) {
    case AML_OPCODE:
        build_append_byte(parent_ctx->buf, child->op);
        break;
    case AML_EXT_PACKAGE:
        build_extop_package(buf, child->op);
        break;
    case AML_PACKAGE:
        build_package(buf, child->op);
        break;
    case AML_RES_TEMPLATE:
        build_append_byte(buf, 0x79); /* EndTag */
        /*
         * checksum operations are treated as succeeded if checksum
         * field is zero. [ACPI Spec 1.0b, 6.4.2.8 End Tag]
         */
        build_append_byte(buf, 0);
        /* fall through, to pack resources in buffer */
    case AML_BUFFER:
        build_buffer(buf, child->op);
        break;
    case AML_NO_OPCODE:
        break;
    default:
        assert(0);
        break;
    }
    build_append_array(parent_ctx->buf, buf);
    build_free_array(buf);
}
static void build_append_and_cleanup_method(GArray *device, GArray *method)
{
    uint8_t op = 0x14; /* MethodOp */

    build_package(method, op, 0);

    build_append_array(device, method);
    build_free_array(method);
}
Exemplo n.º 3
0
/* pack data with DefBuffer encoding */
static void build_buffer(GArray *array, uint8_t op)
{
    GArray *data = build_alloc_array();

    build_append_int(data, array->len);
    g_array_prepend_vals(array, data->data, data->len);
    build_free_array(data);
    build_package(array, op);
}
Exemplo n.º 4
0
static void
build_append_pkg_length(GArray *array, unsigned length, bool incl_self)
{
    GArray *tmp = build_alloc_array();

    build_prepend_package_length(tmp, length, incl_self);
    build_append_array(array, tmp);
    build_free_array(tmp);
}
static void
build_append_notify_method(GArray *device, const char *name,
                           const char *format, int count)
{
    int i;
    GArray *method = build_alloc_method(name, 2);

    for (i = 0; i < count; i++) {
        GArray *target = build_alloc_array();
        build_append_nameseg(target, format, i);
        assert(i < 256); /* Fits in 1 byte */
        build_append_notify_target_ifequal(method, target, i, 1);
        build_free_array(target);
    }

    build_append_and_cleanup_method(device, method);
}
static void build_append_notify_target_ifequal(GArray *method,
                                               GArray *target_name,
                                               uint32_t value, int size)
{
    GArray *notify = build_alloc_array();
    uint8_t op = 0xA0; /* IfOp */

    build_append_byte(notify, 0x93); /* LEqualOp */
    build_append_byte(notify, 0x68); /* Arg0Op */
    build_append_value(notify, value, size);
    build_append_byte(notify, 0x86); /* NotifyOp */
    build_append_array(notify, target_name);
    build_append_byte(notify, 0x69); /* Arg1Op */

    /* Pack it up */
    build_package(notify, op, 1);

    build_append_array(method, notify);

    build_free_array(notify);
}
Exemplo n.º 7
0
static void aml_free(gpointer data, gpointer user_data)
{
    Aml *var = data;
    build_free_array(var->buf);
    g_free(var);
}
static void
build_ssdt(GArray *table_data, GArray *linker,
           AcpiCpuInfo *cpu, AcpiPmInfo *pm, AcpiMiscInfo *misc,
           PcPciInfo *pci, PcGuestInfo *guest_info)
{
    int acpi_cpus = MIN(0xff, guest_info->apic_id_limit);
    int ssdt_start = table_data->len;
    uint8_t *ssdt_ptr;
    int i;

    /* Copy header and patch values in the S3_ / S4_ / S5_ packages */
    ssdt_ptr = acpi_data_push(table_data, sizeof(ssdp_misc_aml));
    memcpy(ssdt_ptr, ssdp_misc_aml, sizeof(ssdp_misc_aml));
    if (pm->s3_disabled) {
        ssdt_ptr[acpi_s3_name[0]] = 'X';
    }
    if (pm->s4_disabled) {
        ssdt_ptr[acpi_s4_name[0]] = 'X';
    } else {
        ssdt_ptr[acpi_s4_pkg[0] + 1] = ssdt_ptr[acpi_s4_pkg[0] + 3] =
            pm->s4_val;
    }

    patch_pci_windows(pci, ssdt_ptr, sizeof(ssdp_misc_aml));

    *(uint16_t *)(ssdt_ptr + *ssdt_isa_pest) =
        cpu_to_le16(misc->pvpanic_port);

    {
        GArray *sb_scope = build_alloc_array();
        uint8_t op = 0x10; /* ScopeOp */

        build_append_nameseg(sb_scope, "_SB_");

        /* build Processor object for each processor */
        for (i = 0; i < acpi_cpus; i++) {
            uint8_t *proc = acpi_data_push(sb_scope, ACPI_PROC_SIZEOF);
            memcpy(proc, ACPI_PROC_AML, ACPI_PROC_SIZEOF);
            proc[ACPI_PROC_OFFSET_CPUHEX] = acpi_get_hex(i >> 4);
            proc[ACPI_PROC_OFFSET_CPUHEX+1] = acpi_get_hex(i);
            proc[ACPI_PROC_OFFSET_CPUID1] = i;
            proc[ACPI_PROC_OFFSET_CPUID2] = i;
        }

        /* build this code:
         *   Method(NTFY, 2) {If (LEqual(Arg0, 0x00)) {Notify(CP00, Arg1)} ...}
         */
        /* Arg0 = Processor ID = APIC ID */
        build_append_notify_method(sb_scope, "NTFY", "CP%0.02X", acpi_cpus);

        /* build "Name(CPON, Package() { One, One, ..., Zero, Zero, ... })" */
        build_append_byte(sb_scope, 0x08); /* NameOp */
        build_append_nameseg(sb_scope, "CPON");

        {
            GArray *package = build_alloc_array();
            uint8_t op = 0x12; /* PackageOp */

            build_append_byte(package, acpi_cpus); /* NumElements */
            for (i = 0; i < acpi_cpus; i++) {
                uint8_t b = test_bit(i, cpu->found_cpus) ? 0x01 : 0x00;
                build_append_byte(package, b);
            }

            build_package(package, op, 2);
            build_append_array(sb_scope, package);
            build_free_array(package);
        }

        {
            AcpiBuildPciBusHotplugState hotplug_state;
            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);

            if (bus) {
                /* Scan all PCI buses. Generate tables to support hotplug. */
                pci_for_each_bus_depth_first(bus, build_pci_bus_begin,
                                             build_pci_bus_end, &hotplug_state);
            }

            build_append_array(sb_scope, hotplug_state.device_table);
            build_pci_bus_state_cleanup(&hotplug_state);
        }

        build_package(sb_scope, op, 3);
        build_append_array(table_data, sb_scope);
        build_free_array(sb_scope);
    }

    build_header(linker, table_data,
                 (void *)(table_data->data + ssdt_start),
                 ACPI_SSDT_SIGNATURE, table_data->len - ssdt_start, 1);
}
static void build_pci_bus_end(PCIBus *bus, void *bus_state)
{
    AcpiBuildPciBusHotplugState *child = 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;
    GArray *method;
    bool bus_hotplug_support = false;

    if (bus->parent_dev) {
        op = 0x82; /* DeviceOp */
        build_append_nameseg(bus_table, "S%.02X_",
                             bus->parent_dev->devfn);
        build_append_byte(bus_table, 0x08); /* NameOp */
        build_append_nameseg(bus_table, "_SUN");
        build_append_value(bus_table, PCI_SLOT(bus->parent_dev->devfn), 1);
        build_append_byte(bus_table, 0x08); /* NameOp */
        build_append_nameseg(bus_table, "_ADR");
        build_append_value(bus_table, (PCI_SLOT(bus->parent_dev->devfn) << 16) |
                           PCI_FUNC(bus->parent_dev->devfn), 4);
    } else {
        op = 0x10; /* ScopeOp */;
        build_append_nameseg(bus_table, "PCI0");
    }

    bsel = object_property_get_qobject(OBJECT(bus), ACPI_PCIHP_PROP_BSEL, NULL);
    if (bsel) {
        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);
    }

    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);

    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);

        if (!pdev) {
            continue;
        }

        set_bit(slot, slot_device_present);
        pc = PCI_DEVICE_GET_CLASS(pdev);
        dc = DEVICE_GET_CLASS(pdev);

        if (pc->class_id == PCI_CLASS_BRIDGE_ISA) {
            set_bit(slot, slot_device_system);
        }

        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++) {
            GArray *notify;
            uint8_t op;

            if (!test_bit(i, slot_hotplug_enable)) {
                continue;
            }

            notify = build_alloc_array();
            op = 0xA0; /* IfOp */

            build_append_byte(notify, 0x7B); /* AndOp */
            build_append_byte(notify, 0x68); /* Arg0Op */
            build_append_int(notify, 0x1 << i);
            build_append_byte(notify, 0x00); /* NullName */
            build_append_byte(notify, 0x86); /* NotifyOp */
            build_append_nameseg(notify, "S%.02X_", PCI_DEVFN(i, 0));
            build_append_byte(notify, 0x69); /* Arg1Op */

            /* Pack it up */
            build_package(notify, op, 0);

            build_append_array(method, notify);

            build_free_array(notify);
        }

        build_append_and_cleanup_method(bus_table, method);
    }

    /* Append PCNT method to notify about events on local and child buses.
     * Add unconditionally for root since DSDT expects it.
     */
    if (bus_hotplug_support || child->notify_table->len || !bus->parent_dev) {
        method = build_alloc_method("PCNT", 0);

        /* If bus supports hotplug select it and notify about local events */
        if (bsel) {
            build_append_byte(method, 0x70); /* StoreOp */
            build_append_int(method, qint_get_int(qobject_to_qint(bsel)));
            build_append_nameseg(method, "BNUM");
            build_append_nameseg(method, "DVNT");
            build_append_nameseg(method, "PCIU");
            build_append_int(method, 1); /* Device Check */
            build_append_nameseg(method, "DVNT");
            build_append_nameseg(method, "PCID");
            build_append_int(method, 3); /* Eject Request */
        }

        /* Notify about child bus events in any case */
        build_append_array(method, child->notify_table);

        build_append_and_cleanup_method(bus_table, method);

        /* Append description of child buses */
        build_append_array(bus_table, child->device_table);

        /* Pack it up */
        if (bus->parent_dev) {
            build_extop_package(bus_table, op);
        } else {
            build_package(bus_table, op, 0);
        }

        /* Append our bus description to parent table */
        build_append_array(parent->device_table, bus_table);

        /* Also tell parent how to notify us, invoking PCNT method.
         * At the moment this is not needed for root as we have a single root.
         */
        if (bus->parent_dev) {
            build_append_byte(parent->notify_table, '^'); /* ParentPrefixChar */
            build_append_byte(parent->notify_table, 0x2E); /* DualNamePrefix */
            build_append_nameseg(parent->notify_table, "S%.02X_",
                                 bus->parent_dev->devfn);
            build_append_nameseg(parent->notify_table, "PCNT");
        }
    }

    build_free_array(bus_table);
    build_pci_bus_state_cleanup(child);
    g_free(child);
}
static void build_pci_bus_state_cleanup(AcpiBuildPciBusHotplugState *state)
{
    build_free_array(state->device_table);
    build_free_array(state->notify_table);
}