1db4728e6SMichael S. Tsirkin /* 2db4728e6SMichael S. Tsirkin * QEMU<->ACPI BIOS PCI hotplug interface 3db4728e6SMichael S. Tsirkin * 4db4728e6SMichael S. Tsirkin * QEMU supports PCI hotplug via ACPI. This module 5db4728e6SMichael S. Tsirkin * implements the interface between QEMU and the ACPI BIOS. 6db4728e6SMichael S. Tsirkin * Interface specification - see docs/specs/acpi_pci_hotplug.txt 7db4728e6SMichael S. Tsirkin * 8db4728e6SMichael S. Tsirkin * Copyright (c) 2013, Red Hat Inc, Michael S. Tsirkin (mst@redhat.com) 9db4728e6SMichael S. Tsirkin * Copyright (c) 2006 Fabrice Bellard 10db4728e6SMichael S. Tsirkin * 11db4728e6SMichael S. Tsirkin * This library is free software; you can redistribute it and/or 12db4728e6SMichael S. Tsirkin * modify it under the terms of the GNU Lesser General Public 13db4728e6SMichael S. Tsirkin * License version 2 as published by the Free Software Foundation. 14db4728e6SMichael S. Tsirkin * 15db4728e6SMichael S. Tsirkin * This library is distributed in the hope that it will be useful, 16db4728e6SMichael S. Tsirkin * but WITHOUT ANY WARRANTY; without even the implied warranty of 17db4728e6SMichael S. Tsirkin * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 18db4728e6SMichael S. Tsirkin * Lesser General Public License for more details. 19db4728e6SMichael S. Tsirkin * 20db4728e6SMichael S. Tsirkin * You should have received a copy of the GNU Lesser General Public 21db4728e6SMichael S. Tsirkin * License along with this library; if not, see <http://www.gnu.org/licenses/> 22db4728e6SMichael S. Tsirkin * 23db4728e6SMichael S. Tsirkin * Contributions after 2012-01-13 are licensed under the terms of the 24db4728e6SMichael S. Tsirkin * GNU GPL, version 2 or (at your option) any later version. 25db4728e6SMichael S. Tsirkin */ 26db4728e6SMichael S. Tsirkin 27b6a0aa05SPeter Maydell #include "qemu/osdep.h" 28db4728e6SMichael S. Tsirkin #include "hw/acpi/pcihp.h" 29db4728e6SMichael S. Tsirkin 30db4728e6SMichael S. Tsirkin #include "hw/hw.h" 31db4728e6SMichael S. Tsirkin #include "hw/i386/pc.h" 32db4728e6SMichael S. Tsirkin #include "hw/pci/pci.h" 33db4728e6SMichael S. Tsirkin #include "hw/acpi/acpi.h" 34db4728e6SMichael S. Tsirkin #include "sysemu/sysemu.h" 35db4728e6SMichael S. Tsirkin #include "exec/ioport.h" 36db4728e6SMichael S. Tsirkin #include "exec/address-spaces.h" 37db4728e6SMichael S. Tsirkin #include "hw/pci/pci_bus.h" 38da34e65cSMarkus Armbruster #include "qapi/error.h" 39db4728e6SMichael S. Tsirkin #include "qom/qom-qobject.h" 40db4728e6SMichael S. Tsirkin 41db4728e6SMichael S. Tsirkin //#define DEBUG 42db4728e6SMichael S. Tsirkin 43db4728e6SMichael S. Tsirkin #ifdef DEBUG 44db4728e6SMichael S. Tsirkin # define ACPI_PCIHP_DPRINTF(format, ...) printf(format, ## __VA_ARGS__) 45db4728e6SMichael S. Tsirkin #else 46db4728e6SMichael S. Tsirkin # define ACPI_PCIHP_DPRINTF(format, ...) do { } while (0) 47db4728e6SMichael S. Tsirkin #endif 48db4728e6SMichael S. Tsirkin 49e358edc8SIgor Mammedov #define ACPI_PCIHP_ADDR 0xae00 50e358edc8SIgor Mammedov #define ACPI_PCIHP_SIZE 0x0014 51a7b613cfSIgor Mammedov #define PCI_UP_BASE 0x0000 52a7b613cfSIgor Mammedov #define PCI_DOWN_BASE 0x0004 53a7b613cfSIgor Mammedov #define PCI_EJ_BASE 0x0008 54a7b613cfSIgor Mammedov #define PCI_RMV_BASE 0x000c 55a7b613cfSIgor Mammedov #define PCI_SEL_BASE 0x0010 56db4728e6SMichael S. Tsirkin 57db4728e6SMichael S. Tsirkin typedef struct AcpiPciHpFind { 58db4728e6SMichael S. Tsirkin int bsel; 59db4728e6SMichael S. Tsirkin PCIBus *bus; 60db4728e6SMichael S. Tsirkin } AcpiPciHpFind; 61db4728e6SMichael S. Tsirkin 62db4728e6SMichael S. Tsirkin static int acpi_pcihp_get_bsel(PCIBus *bus) 63db4728e6SMichael S. Tsirkin { 647c38ecd0SKirill Batuzov Error *local_err = NULL; 65c03d83d5SMarc-André Lureau uint64_t bsel = object_property_get_uint(OBJECT(bus), ACPI_PCIHP_PROP_BSEL, 667c38ecd0SKirill Batuzov &local_err); 677c38ecd0SKirill Batuzov 68c03d83d5SMarc-André Lureau if (local_err || bsel >= ACPI_PCIHP_MAX_HOTPLUG_BUS) { 697c38ecd0SKirill Batuzov if (local_err) { 707c38ecd0SKirill Batuzov error_free(local_err); 71db4728e6SMichael S. Tsirkin } 72db4728e6SMichael S. Tsirkin return -1; 737c38ecd0SKirill Batuzov } else { 74db4728e6SMichael S. Tsirkin return bsel; 75db4728e6SMichael S. Tsirkin } 767c38ecd0SKirill Batuzov } 77db4728e6SMichael S. Tsirkin 78db4728e6SMichael S. Tsirkin static void acpi_pcihp_test_hotplug_bus(PCIBus *bus, void *opaque) 79db4728e6SMichael S. Tsirkin { 80db4728e6SMichael S. Tsirkin AcpiPciHpFind *find = opaque; 81db4728e6SMichael S. Tsirkin if (find->bsel == acpi_pcihp_get_bsel(bus)) { 82db4728e6SMichael S. Tsirkin find->bus = bus; 83db4728e6SMichael S. Tsirkin } 84db4728e6SMichael S. Tsirkin } 85db4728e6SMichael S. Tsirkin 86db4728e6SMichael S. Tsirkin static PCIBus *acpi_pcihp_find_hotplug_bus(AcpiPciHpState *s, int bsel) 87db4728e6SMichael S. Tsirkin { 88db4728e6SMichael S. Tsirkin AcpiPciHpFind find = { .bsel = bsel, .bus = NULL }; 89db4728e6SMichael S. Tsirkin 90db4728e6SMichael S. Tsirkin if (bsel < 0) { 91db4728e6SMichael S. Tsirkin return NULL; 92db4728e6SMichael S. Tsirkin } 93db4728e6SMichael S. Tsirkin 94db4728e6SMichael S. Tsirkin pci_for_each_bus(s->root, acpi_pcihp_test_hotplug_bus, &find); 95db4728e6SMichael S. Tsirkin 96db4728e6SMichael S. Tsirkin /* Make bsel 0 eject root bus if bsel property is not set, 97db4728e6SMichael S. Tsirkin * for compatibility with non acpi setups. 98db4728e6SMichael S. Tsirkin * TODO: really needed? 99db4728e6SMichael S. Tsirkin */ 100db4728e6SMichael S. Tsirkin if (!bsel && !find.bus) { 101db4728e6SMichael S. Tsirkin find.bus = s->root; 102db4728e6SMichael S. Tsirkin } 103db4728e6SMichael S. Tsirkin return find.bus; 104db4728e6SMichael S. Tsirkin } 105db4728e6SMichael S. Tsirkin 106db4728e6SMichael S. Tsirkin static bool acpi_pcihp_pc_no_hotplug(AcpiPciHpState *s, PCIDevice *dev) 107db4728e6SMichael S. Tsirkin { 108db4728e6SMichael S. Tsirkin PCIDeviceClass *pc = PCI_DEVICE_GET_CLASS(dev); 1092897ae02SIgor Mammedov DeviceClass *dc = DEVICE_GET_CLASS(dev); 110db4728e6SMichael S. Tsirkin /* 111db4728e6SMichael S. Tsirkin * ACPI doesn't allow hotplug of bridge devices. Don't allow 112db4728e6SMichael S. Tsirkin * hot-unplug of bridge devices unless they were added by hotplug 113db4728e6SMichael S. Tsirkin * (and so, not described by acpi). 114db4728e6SMichael S. Tsirkin */ 1152897ae02SIgor Mammedov return (pc->is_bridge && !dev->qdev.hotplugged) || !dc->hotpluggable; 116db4728e6SMichael S. Tsirkin } 117db4728e6SMichael S. Tsirkin 118db4728e6SMichael S. Tsirkin static void acpi_pcihp_eject_slot(AcpiPciHpState *s, unsigned bsel, unsigned slots) 119db4728e6SMichael S. Tsirkin { 120db4728e6SMichael S. Tsirkin BusChild *kid, *next; 121786a4ea8SStefan Hajnoczi int slot = ctz32(slots); 122db4728e6SMichael S. Tsirkin PCIBus *bus = acpi_pcihp_find_hotplug_bus(s, bsel); 123db4728e6SMichael S. Tsirkin 124db4728e6SMichael S. Tsirkin if (!bus) { 125db4728e6SMichael S. Tsirkin return; 126db4728e6SMichael S. Tsirkin } 127db4728e6SMichael S. Tsirkin 128db4728e6SMichael S. Tsirkin /* Mark request as complete */ 129db4728e6SMichael S. Tsirkin s->acpi_pcihp_pci_status[bsel].down &= ~(1U << slot); 1305a2223caSMichael S. Tsirkin s->acpi_pcihp_pci_status[bsel].up &= ~(1U << slot); 131db4728e6SMichael S. Tsirkin 132db4728e6SMichael S. Tsirkin QTAILQ_FOREACH_SAFE(kid, &bus->qbus.children, sibling, next) { 133db4728e6SMichael S. Tsirkin DeviceState *qdev = kid->child; 134db4728e6SMichael S. Tsirkin PCIDevice *dev = PCI_DEVICE(qdev); 135db4728e6SMichael S. Tsirkin if (PCI_SLOT(dev->devfn) == slot) { 1365a2223caSMichael S. Tsirkin if (!acpi_pcihp_pc_no_hotplug(s, dev)) { 137db4728e6SMichael S. Tsirkin object_unparent(OBJECT(qdev)); 138db4728e6SMichael S. Tsirkin } 139db4728e6SMichael S. Tsirkin } 140db4728e6SMichael S. Tsirkin } 141db4728e6SMichael S. Tsirkin } 142db4728e6SMichael S. Tsirkin 143db4728e6SMichael S. Tsirkin static void acpi_pcihp_update_hotplug_bus(AcpiPciHpState *s, int bsel) 144db4728e6SMichael S. Tsirkin { 145db4728e6SMichael S. Tsirkin BusChild *kid, *next; 146db4728e6SMichael S. Tsirkin PCIBus *bus = acpi_pcihp_find_hotplug_bus(s, bsel); 147db4728e6SMichael S. Tsirkin 148db4728e6SMichael S. Tsirkin /* Execute any pending removes during reset */ 149db4728e6SMichael S. Tsirkin while (s->acpi_pcihp_pci_status[bsel].down) { 150db4728e6SMichael S. Tsirkin acpi_pcihp_eject_slot(s, bsel, s->acpi_pcihp_pci_status[bsel].down); 151db4728e6SMichael S. Tsirkin } 152db4728e6SMichael S. Tsirkin 153db4728e6SMichael S. Tsirkin s->acpi_pcihp_pci_status[bsel].hotplug_enable = ~0; 154db4728e6SMichael S. Tsirkin 155db4728e6SMichael S. Tsirkin if (!bus) { 156db4728e6SMichael S. Tsirkin return; 157db4728e6SMichael S. Tsirkin } 158db4728e6SMichael S. Tsirkin QTAILQ_FOREACH_SAFE(kid, &bus->qbus.children, sibling, next) { 159db4728e6SMichael S. Tsirkin DeviceState *qdev = kid->child; 160db4728e6SMichael S. Tsirkin PCIDevice *pdev = PCI_DEVICE(qdev); 161db4728e6SMichael S. Tsirkin int slot = PCI_SLOT(pdev->devfn); 162db4728e6SMichael S. Tsirkin 163db4728e6SMichael S. Tsirkin if (acpi_pcihp_pc_no_hotplug(s, pdev)) { 164db4728e6SMichael S. Tsirkin s->acpi_pcihp_pci_status[bsel].hotplug_enable &= ~(1U << slot); 165db4728e6SMichael S. Tsirkin } 166db4728e6SMichael S. Tsirkin } 167db4728e6SMichael S. Tsirkin } 168db4728e6SMichael S. Tsirkin 169db4728e6SMichael S. Tsirkin static void acpi_pcihp_update(AcpiPciHpState *s) 170db4728e6SMichael S. Tsirkin { 171db4728e6SMichael S. Tsirkin int i; 172db4728e6SMichael S. Tsirkin 173db4728e6SMichael S. Tsirkin for (i = 0; i < ACPI_PCIHP_MAX_HOTPLUG_BUS; ++i) { 174db4728e6SMichael S. Tsirkin acpi_pcihp_update_hotplug_bus(s, i); 175db4728e6SMichael S. Tsirkin } 176db4728e6SMichael S. Tsirkin } 177db4728e6SMichael S. Tsirkin 178db4728e6SMichael S. Tsirkin void acpi_pcihp_reset(AcpiPciHpState *s) 179db4728e6SMichael S. Tsirkin { 180db4728e6SMichael S. Tsirkin acpi_pcihp_update(s); 181db4728e6SMichael S. Tsirkin } 182db4728e6SMichael S. Tsirkin 1830058c082SIgor Mammedov void acpi_pcihp_device_plug_cb(HotplugHandler *hotplug_dev, AcpiPciHpState *s, 184c24d5e0bSIgor Mammedov DeviceState *dev, Error **errp) 185db4728e6SMichael S. Tsirkin { 186c24d5e0bSIgor Mammedov PCIDevice *pdev = PCI_DEVICE(dev); 187c24d5e0bSIgor Mammedov int slot = PCI_SLOT(pdev->devfn); 188c24d5e0bSIgor Mammedov int bsel = acpi_pcihp_get_bsel(pdev->bus); 189db4728e6SMichael S. Tsirkin if (bsel < 0) { 190c24d5e0bSIgor Mammedov error_setg(errp, "Unsupported bus. Bus doesn't have property '" 191c24d5e0bSIgor Mammedov ACPI_PCIHP_PROP_BSEL "' set"); 192c24d5e0bSIgor Mammedov return; 193db4728e6SMichael S. Tsirkin } 194db4728e6SMichael S. Tsirkin 195db4728e6SMichael S. Tsirkin /* Don't send event when device is enabled during qemu machine creation: 196db4728e6SMichael S. Tsirkin * it is present on boot, no hotplug event is necessary. We do send an 197db4728e6SMichael S. Tsirkin * event when the device is disabled later. */ 198c24d5e0bSIgor Mammedov if (!dev->hotplugged) { 199c24d5e0bSIgor Mammedov return; 200db4728e6SMichael S. Tsirkin } 201db4728e6SMichael S. Tsirkin 2028f5001f9SIgor Mammedov s->acpi_pcihp_pci_status[bsel].up |= (1U << slot); 2030058c082SIgor Mammedov acpi_send_event(DEVICE(hotplug_dev), ACPI_PCI_HOTPLUG_STATUS); 204db4728e6SMichael S. Tsirkin } 205db4728e6SMichael S. Tsirkin 2060058c082SIgor Mammedov void acpi_pcihp_device_unplug_cb(HotplugHandler *hotplug_dev, AcpiPciHpState *s, 207c24d5e0bSIgor Mammedov DeviceState *dev, Error **errp) 208c24d5e0bSIgor Mammedov { 209c24d5e0bSIgor Mammedov PCIDevice *pdev = PCI_DEVICE(dev); 210c24d5e0bSIgor Mammedov int slot = PCI_SLOT(pdev->devfn); 211c24d5e0bSIgor Mammedov int bsel = acpi_pcihp_get_bsel(pdev->bus); 212c24d5e0bSIgor Mammedov if (bsel < 0) { 213c24d5e0bSIgor Mammedov error_setg(errp, "Unsupported bus. Bus doesn't have property '" 214c24d5e0bSIgor Mammedov ACPI_PCIHP_PROP_BSEL "' set"); 215c24d5e0bSIgor Mammedov return; 216c24d5e0bSIgor Mammedov } 217c24d5e0bSIgor Mammedov 218c24d5e0bSIgor Mammedov s->acpi_pcihp_pci_status[bsel].down |= (1U << slot); 2190058c082SIgor Mammedov acpi_send_event(DEVICE(hotplug_dev), ACPI_PCI_HOTPLUG_STATUS); 220db4728e6SMichael S. Tsirkin } 221db4728e6SMichael S. Tsirkin 222db4728e6SMichael S. Tsirkin static uint64_t pci_read(void *opaque, hwaddr addr, unsigned int size) 223db4728e6SMichael S. Tsirkin { 224db4728e6SMichael S. Tsirkin AcpiPciHpState *s = opaque; 225db4728e6SMichael S. Tsirkin uint32_t val = 0; 226db4728e6SMichael S. Tsirkin int bsel = s->hotplug_select; 227db4728e6SMichael S. Tsirkin 228fa365d7cSGonglei if (bsel < 0 || bsel >= ACPI_PCIHP_MAX_HOTPLUG_BUS) { 229db4728e6SMichael S. Tsirkin return 0; 230db4728e6SMichael S. Tsirkin } 231db4728e6SMichael S. Tsirkin 232db4728e6SMichael S. Tsirkin switch (addr) { 233a7b613cfSIgor Mammedov case PCI_UP_BASE: 2345a2223caSMichael S. Tsirkin val = s->acpi_pcihp_pci_status[bsel].up; 23599d09dd3SIgor Mammedov if (!s->legacy_piix) { 2365a2223caSMichael S. Tsirkin s->acpi_pcihp_pci_status[bsel].up = 0; 23799d09dd3SIgor Mammedov } 238db4728e6SMichael S. Tsirkin ACPI_PCIHP_DPRINTF("pci_up_read %" PRIu32 "\n", val); 239db4728e6SMichael S. Tsirkin break; 240a7b613cfSIgor Mammedov case PCI_DOWN_BASE: 241db4728e6SMichael S. Tsirkin val = s->acpi_pcihp_pci_status[bsel].down; 242db4728e6SMichael S. Tsirkin ACPI_PCIHP_DPRINTF("pci_down_read %" PRIu32 "\n", val); 243db4728e6SMichael S. Tsirkin break; 244a7b613cfSIgor Mammedov case PCI_EJ_BASE: 245db4728e6SMichael S. Tsirkin /* No feature defined yet */ 246db4728e6SMichael S. Tsirkin ACPI_PCIHP_DPRINTF("pci_features_read %" PRIu32 "\n", val); 247db4728e6SMichael S. Tsirkin break; 248a7b613cfSIgor Mammedov case PCI_RMV_BASE: 249db4728e6SMichael S. Tsirkin val = s->acpi_pcihp_pci_status[bsel].hotplug_enable; 250db4728e6SMichael S. Tsirkin ACPI_PCIHP_DPRINTF("pci_rmv_read %" PRIu32 "\n", val); 251db4728e6SMichael S. Tsirkin break; 252a7b613cfSIgor Mammedov case PCI_SEL_BASE: 253db4728e6SMichael S. Tsirkin val = s->hotplug_select; 254db4728e6SMichael S. Tsirkin ACPI_PCIHP_DPRINTF("pci_sel_read %" PRIu32 "\n", val); 255db4728e6SMichael S. Tsirkin default: 256db4728e6SMichael S. Tsirkin break; 257db4728e6SMichael S. Tsirkin } 258db4728e6SMichael S. Tsirkin 259db4728e6SMichael S. Tsirkin return val; 260db4728e6SMichael S. Tsirkin } 261db4728e6SMichael S. Tsirkin 262db4728e6SMichael S. Tsirkin static void pci_write(void *opaque, hwaddr addr, uint64_t data, 263db4728e6SMichael S. Tsirkin unsigned int size) 264db4728e6SMichael S. Tsirkin { 265db4728e6SMichael S. Tsirkin AcpiPciHpState *s = opaque; 266db4728e6SMichael S. Tsirkin switch (addr) { 267a7b613cfSIgor Mammedov case PCI_EJ_BASE: 268db4728e6SMichael S. Tsirkin if (s->hotplug_select >= ACPI_PCIHP_MAX_HOTPLUG_BUS) { 269db4728e6SMichael S. Tsirkin break; 270db4728e6SMichael S. Tsirkin } 271db4728e6SMichael S. Tsirkin acpi_pcihp_eject_slot(s, s->hotplug_select, data); 272db4728e6SMichael S. Tsirkin ACPI_PCIHP_DPRINTF("pciej write %" HWADDR_PRIx " <== %" PRIu64 "\n", 273db4728e6SMichael S. Tsirkin addr, data); 274db4728e6SMichael S. Tsirkin break; 275a7b613cfSIgor Mammedov case PCI_SEL_BASE: 276*f5855994SAnthony PERARD s->hotplug_select = s->legacy_piix ? ACPI_PCIHP_BSEL_DEFAULT : data; 277db4728e6SMichael S. Tsirkin ACPI_PCIHP_DPRINTF("pcisel write %" HWADDR_PRIx " <== %" PRIu64 "\n", 278db4728e6SMichael S. Tsirkin addr, data); 279db4728e6SMichael S. Tsirkin default: 280db4728e6SMichael S. Tsirkin break; 281db4728e6SMichael S. Tsirkin } 282db4728e6SMichael S. Tsirkin } 283db4728e6SMichael S. Tsirkin 284db4728e6SMichael S. Tsirkin static const MemoryRegionOps acpi_pcihp_io_ops = { 285db4728e6SMichael S. Tsirkin .read = pci_read, 286db4728e6SMichael S. Tsirkin .write = pci_write, 287db4728e6SMichael S. Tsirkin .endianness = DEVICE_LITTLE_ENDIAN, 288db4728e6SMichael S. Tsirkin .valid = { 289db4728e6SMichael S. Tsirkin .min_access_size = 4, 290db4728e6SMichael S. Tsirkin .max_access_size = 4, 291db4728e6SMichael S. Tsirkin }, 292db4728e6SMichael S. Tsirkin }; 293db4728e6SMichael S. Tsirkin 29478c2d872SIgor Mammedov void acpi_pcihp_init(Object *owner, AcpiPciHpState *s, PCIBus *root_bus, 29599d09dd3SIgor Mammedov MemoryRegion *address_space_io, bool bridges_enabled) 296db4728e6SMichael S. Tsirkin { 29778c2d872SIgor Mammedov s->io_len = ACPI_PCIHP_SIZE; 29878c2d872SIgor Mammedov s->io_base = ACPI_PCIHP_ADDR; 299e358edc8SIgor Mammedov 300db4728e6SMichael S. Tsirkin s->root= root_bus; 30199d09dd3SIgor Mammedov s->legacy_piix = !bridges_enabled; 302e358edc8SIgor Mammedov 30378c2d872SIgor Mammedov memory_region_init_io(&s->io, owner, &acpi_pcihp_io_ops, s, 30478c2d872SIgor Mammedov "acpi-pci-hotplug", s->io_len); 30578c2d872SIgor Mammedov memory_region_add_subregion(address_space_io, s->io_base, &s->io); 30678c2d872SIgor Mammedov 30778c2d872SIgor Mammedov object_property_add_uint16_ptr(owner, ACPI_PCIHP_IO_BASE_PROP, &s->io_base, 30878c2d872SIgor Mammedov &error_abort); 30978c2d872SIgor Mammedov object_property_add_uint16_ptr(owner, ACPI_PCIHP_IO_LEN_PROP, &s->io_len, 31078c2d872SIgor Mammedov &error_abort); 311db4728e6SMichael S. Tsirkin } 312db4728e6SMichael S. Tsirkin 313db4728e6SMichael S. Tsirkin const VMStateDescription vmstate_acpi_pcihp_pci_status = { 314db4728e6SMichael S. Tsirkin .name = "acpi_pcihp_pci_status", 315db4728e6SMichael S. Tsirkin .version_id = 1, 316db4728e6SMichael S. Tsirkin .minimum_version_id = 1, 317db4728e6SMichael S. Tsirkin .fields = (VMStateField[]) { 318db4728e6SMichael S. Tsirkin VMSTATE_UINT32(up, AcpiPciHpPciStatus), 319db4728e6SMichael S. Tsirkin VMSTATE_UINT32(down, AcpiPciHpPciStatus), 320db4728e6SMichael S. Tsirkin VMSTATE_END_OF_LIST() 321db4728e6SMichael S. Tsirkin } 322db4728e6SMichael S. Tsirkin }; 323