diff options
Diffstat (limited to 'include/hw/acpi/pcihp.h')
-rw-r--r-- | include/hw/acpi/pcihp.h | 89 |
1 files changed, 89 insertions, 0 deletions
diff --git a/include/hw/acpi/pcihp.h b/include/hw/acpi/pcihp.h new file mode 100644 index 000000000..af1a169fc --- /dev/null +++ b/include/hw/acpi/pcihp.h @@ -0,0 +1,89 @@ +/* + * QEMU<->ACPI BIOS PCI hotplug interface + * + * QEMU supports PCI hotplug via ACPI. This module + * implements the interface between QEMU and the ACPI BIOS. + * Interface specification - see docs/specs/acpi_pci_hotplug.txt + * + * Copyright (c) 2013, Red Hat Inc, Michael S. Tsirkin (mst@redhat.com) + * Copyright (c) 2006 Fabrice Bellard + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, see <http://www.gnu.org/licenses/> + * + * Contributions after 2012-01-13 are licensed under the terms of the + * GNU GPL, version 2 or (at your option) any later version. + */ + +#ifndef HW_ACPI_PCIHP_H +#define HW_ACPI_PCIHP_H + +#include "hw/acpi/acpi.h" +#include "hw/hotplug.h" + +#define ACPI_PCIHP_IO_BASE_PROP "acpi-pcihp-io-base" +#define ACPI_PCIHP_IO_LEN_PROP "acpi-pcihp-io-len" + +typedef struct AcpiPciHpPciStatus { + uint32_t up; + uint32_t down; + uint32_t hotplug_enable; +} AcpiPciHpPciStatus; + +#define ACPI_PCIHP_PROP_BSEL "acpi-pcihp-bsel" +#define ACPI_PCIHP_MAX_HOTPLUG_BUS 256 +#define ACPI_PCIHP_BSEL_DEFAULT 0x0 + +typedef struct AcpiPciHpState { + AcpiPciHpPciStatus acpi_pcihp_pci_status[ACPI_PCIHP_MAX_HOTPLUG_BUS]; + uint32_t hotplug_select; + uint32_t acpi_index; + PCIBus *root; + MemoryRegion io; + bool legacy_piix; + uint16_t io_base; + uint16_t io_len; +} AcpiPciHpState; + +void acpi_pcihp_init(Object *owner, AcpiPciHpState *, PCIBus *root, + MemoryRegion *address_space_io, bool bridges_enabled, + uint16_t io_base); + +void acpi_pcihp_device_pre_plug_cb(HotplugHandler *hotplug_dev, + DeviceState *dev, Error **errp); +void acpi_pcihp_device_plug_cb(HotplugHandler *hotplug_dev, AcpiPciHpState *s, + DeviceState *dev, Error **errp); +void acpi_pcihp_device_unplug_cb(HotplugHandler *hotplug_dev, AcpiPciHpState *s, + DeviceState *dev, Error **errp); +void acpi_pcihp_device_unplug_request_cb(HotplugHandler *hotplug_dev, + AcpiPciHpState *s, DeviceState *dev, + Error **errp); + +/* Called on reset */ +void acpi_pcihp_reset(AcpiPciHpState *s, bool acpihp_root_off); + +extern const VMStateDescription vmstate_acpi_pcihp_pci_status; + +bool vmstate_acpi_pcihp_use_acpi_index(void *opaque, int version_id); + +#define VMSTATE_PCI_HOTPLUG(pcihp, state, test_pcihp, test_acpi_index) \ + VMSTATE_UINT32_TEST(pcihp.hotplug_select, state, \ + test_pcihp), \ + VMSTATE_STRUCT_ARRAY_TEST(pcihp.acpi_pcihp_pci_status, state, \ + ACPI_PCIHP_MAX_HOTPLUG_BUS, \ + test_pcihp, 1, \ + vmstate_acpi_pcihp_pci_status, \ + AcpiPciHpPciStatus), \ + VMSTATE_UINT32_TEST(pcihp.acpi_index, state, \ + test_acpi_index) + +#endif |