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/*
* 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;
#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
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