mirror of https://gitee.com/openkylin/qemu.git
76 lines
2.7 KiB
C
76 lines
2.7 KiB
C
/*
|
|
* 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 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 <inttypes.h>
|
|
#include <qemu/typedefs.h>
|
|
#include "hw/acpi/acpi.h"
|
|
#include "migration/vmstate.h"
|
|
|
|
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;
|
|
PCIBus *root;
|
|
MemoryRegion io;
|
|
bool legacy_piix;
|
|
} AcpiPciHpState;
|
|
|
|
void acpi_pcihp_init(AcpiPciHpState *, PCIBus *root,
|
|
MemoryRegion *address_space_io, bool bridges_enabled);
|
|
|
|
void acpi_pcihp_device_plug_cb(ACPIREGS *ar, qemu_irq irq, AcpiPciHpState *s,
|
|
DeviceState *dev, Error **errp);
|
|
void acpi_pcihp_device_unplug_cb(ACPIREGS *ar, qemu_irq irq, AcpiPciHpState *s,
|
|
DeviceState *dev, Error **errp);
|
|
|
|
/* Called on reset */
|
|
void acpi_pcihp_reset(AcpiPciHpState *s);
|
|
|
|
extern const VMStateDescription vmstate_acpi_pcihp_pci_status;
|
|
|
|
#define VMSTATE_PCI_HOTPLUG(pcihp, state, test_pcihp) \
|
|
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)
|
|
|
|
#endif
|