2 * QEMU<->ACPI BIOS PCI hotplug interface
4 * QEMU supports PCI hotplug via ACPI. This module
5 * implements the interface between QEMU and the ACPI BIOS.
6 * Interface specification - see docs/specs/acpi_pci_hotplug.txt
8 * Copyright (c) 2013, Red Hat Inc, Michael S. Tsirkin (mst@redhat.com)
9 * Copyright (c) 2006 Fabrice Bellard
11 * This library is free software; you can redistribute it and/or
12 * modify it under the terms of the GNU Lesser General Public
13 * License version 2.1 as published by the Free Software Foundation.
15 * This library is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
18 * Lesser General Public License for more details.
20 * You should have received a copy of the GNU Lesser General Public
21 * License along with this library; if not, see <http://www.gnu.org/licenses/>
23 * Contributions after 2012-01-13 are licensed under the terms of the
24 * GNU GPL, version 2 or (at your option) any later version.
27 #ifndef HW_ACPI_PCIHP_H
28 #define HW_ACPI_PCIHP_H
30 #include "hw/acpi/acpi.h"
31 #include "hw/hotplug.h"
33 #define ACPI_PCIHP_IO_BASE_PROP "acpi-pcihp-io-base"
34 #define ACPI_PCIHP_IO_LEN_PROP "acpi-pcihp-io-len"
36 typedef struct AcpiPciHpPciStatus
{
39 uint32_t hotplug_enable
;
42 #define ACPI_PCIHP_PROP_BSEL "acpi-pcihp-bsel"
43 #define ACPI_PCIHP_MAX_HOTPLUG_BUS 256
44 #define ACPI_PCIHP_BSEL_DEFAULT 0x0
46 typedef struct AcpiPciHpState
{
47 AcpiPciHpPciStatus acpi_pcihp_pci_status
[ACPI_PCIHP_MAX_HOTPLUG_BUS
];
48 uint32_t hotplug_select
;
57 void acpi_pcihp_init(Object
*owner
, AcpiPciHpState
*, PCIBus
*root
,
58 MemoryRegion
*address_space_io
, bool bridges_enabled
);
60 void acpi_pcihp_device_pre_plug_cb(HotplugHandler
*hotplug_dev
,
61 DeviceState
*dev
, Error
**errp
);
62 void acpi_pcihp_device_plug_cb(HotplugHandler
*hotplug_dev
, AcpiPciHpState
*s
,
63 DeviceState
*dev
, Error
**errp
);
64 void acpi_pcihp_device_unplug_cb(HotplugHandler
*hotplug_dev
, AcpiPciHpState
*s
,
65 DeviceState
*dev
, Error
**errp
);
66 void acpi_pcihp_device_unplug_request_cb(HotplugHandler
*hotplug_dev
,
67 AcpiPciHpState
*s
, DeviceState
*dev
,
71 void acpi_pcihp_reset(AcpiPciHpState
*s
, bool acpihp_root_off
);
73 extern const VMStateDescription vmstate_acpi_pcihp_pci_status
;
75 bool vmstate_acpi_pcihp_use_acpi_index(void *opaque
, int version_id
);
77 #define VMSTATE_PCI_HOTPLUG(pcihp, state, test_pcihp, test_acpi_index) \
78 VMSTATE_UINT32_TEST(pcihp.hotplug_select, state, \
80 VMSTATE_STRUCT_ARRAY_TEST(pcihp.acpi_pcihp_pci_status, state, \
81 ACPI_PCIHP_MAX_HOTPLUG_BUS, \
83 vmstate_acpi_pcihp_pci_status, \
84 AcpiPciHpPciStatus), \
85 VMSTATE_UINT32_TEST(pcihp.acpi_index, state, \