diff options
Diffstat (limited to 'hw/ivshmem.c')
| -rw-r--r-- | hw/ivshmem.c | 826 |
1 files changed, 0 insertions, 826 deletions
diff --git a/hw/ivshmem.c b/hw/ivshmem.c deleted file mode 100644 index af2789e9ac..0000000000 --- a/hw/ivshmem.c +++ /dev/null @@ -1,826 +0,0 @@ -/* - * Inter-VM Shared Memory PCI device. - * - * Author: - * Cam Macdonell <cam@cs.ualberta.ca> - * - * Based On: cirrus_vga.c - * Copyright (c) 2004 Fabrice Bellard - * Copyright (c) 2004 Makoto Suzuki (suzu) - * - * and rtl8139.c - * Copyright (c) 2006 Igor Kovalenko - * - * This code is licensed under the GNU GPL v2. - * - * Contributions after 2012-01-13 are licensed under the terms of the - * GNU GPL, version 2 or (at your option) any later version. - */ -#include "hw/hw.h" -#include "hw/pc.h" -#include "hw/pci/pci.h" -#include "hw/pci/msix.h" -#include "sysemu/kvm.h" -#include "migration/migration.h" -#include "qapi/qmp/qerror.h" -#include "qemu/event_notifier.h" -#include "char/char.h" - -#include <sys/mman.h> -#include <sys/types.h> - -#define PCI_VENDOR_ID_IVSHMEM PCI_VENDOR_ID_REDHAT_QUMRANET -#define PCI_DEVICE_ID_IVSHMEM 0x1110 - -#define IVSHMEM_IOEVENTFD 0 -#define IVSHMEM_MSI 1 - -#define IVSHMEM_PEER 0 -#define IVSHMEM_MASTER 1 - -#define IVSHMEM_REG_BAR_SIZE 0x100 - -//#define DEBUG_IVSHMEM -#ifdef DEBUG_IVSHMEM -#define IVSHMEM_DPRINTF(fmt, ...) \ - do {printf("IVSHMEM: " fmt, ## __VA_ARGS__); } while (0) -#else -#define IVSHMEM_DPRINTF(fmt, ...) -#endif - -typedef struct Peer { - int nb_eventfds; - EventNotifier *eventfds; -} Peer; - -typedef struct EventfdEntry { - PCIDevice *pdev; - int vector; -} EventfdEntry; - -typedef struct IVShmemState { - PCIDevice dev; - uint32_t intrmask; - uint32_t intrstatus; - uint32_t doorbell; - - CharDriverState **eventfd_chr; - CharDriverState *server_chr; - MemoryRegion ivshmem_mmio; - - /* We might need to register the BAR before we actually have the memory. - * So prepare a container MemoryRegion for the BAR immediately and - * add a subregion when we have the memory. - */ - MemoryRegion bar; - MemoryRegion ivshmem; - uint64_t ivshmem_size; /* size of shared memory region */ - uint32_t ivshmem_attr; - uint32_t ivshmem_64bit; - int shm_fd; /* shared memory file descriptor */ - - Peer *peers; - int nb_peers; /* how many guests we have space for */ - int max_peer; /* maximum numbered peer */ - - int vm_id; - uint32_t vectors; - uint32_t features; - EventfdEntry *eventfd_table; - - Error *migration_blocker; - - char * shmobj; - char * sizearg; - char * role; - int role_val; /* scalar to avoid multiple string comparisons */ -} IVShmemState; - -/* registers for the Inter-VM shared memory device */ -enum ivshmem_registers { - INTRMASK = 0, - INTRSTATUS = 4, - IVPOSITION = 8, - DOORBELL = 12, -}; - -static inline uint32_t ivshmem_has_feature(IVShmemState *ivs, - unsigned int feature) { - return (ivs->features & (1 << feature)); -} - -static inline bool is_power_of_two(uint64_t x) { - return (x & (x - 1)) == 0; -} - -/* accessing registers - based on rtl8139 */ -static void ivshmem_update_irq(IVShmemState *s, int val) -{ - int isr; - isr = (s->intrstatus & s->intrmask) & 0xffffffff; - - /* don't print ISR resets */ - if (isr) { - IVSHMEM_DPRINTF("Set IRQ to %d (%04x %04x)\n", - isr ? 1 : 0, s->intrstatus, s->intrmask); - } - - qemu_set_irq(s->dev.irq[0], (isr != 0)); -} - -static void ivshmem_IntrMask_write(IVShmemState *s, uint32_t val) -{ - IVSHMEM_DPRINTF("IntrMask write(w) val = 0x%04x\n", val); - - s->intrmask = val; - - ivshmem_update_irq(s, val); -} - -static uint32_t ivshmem_IntrMask_read(IVShmemState *s) -{ - uint32_t ret = s->intrmask; - - IVSHMEM_DPRINTF("intrmask read(w) val = 0x%04x\n", ret); - - return ret; -} - -static void ivshmem_IntrStatus_write(IVShmemState *s, uint32_t val) -{ - IVSHMEM_DPRINTF("IntrStatus write(w) val = 0x%04x\n", val); - - s->intrstatus = val; - - ivshmem_update_irq(s, val); -} - -static uint32_t ivshmem_IntrStatus_read(IVShmemState *s) -{ - uint32_t ret = s->intrstatus; - - /* reading ISR clears all interrupts */ - s->intrstatus = 0; - - ivshmem_update_irq(s, 0); - - return ret; -} - -static void ivshmem_io_write(void *opaque, hwaddr addr, - uint64_t val, unsigned size) -{ - IVShmemState *s = opaque; - - uint16_t dest = val >> 16; - uint16_t vector = val & 0xff; - - addr &= 0xfc; - - IVSHMEM_DPRINTF("writing to addr " TARGET_FMT_plx "\n", addr); - switch (addr) - { - case INTRMASK: - ivshmem_IntrMask_write(s, val); - break; - - case INTRSTATUS: - ivshmem_IntrStatus_write(s, val); - break; - - case DOORBELL: - /* check that dest VM ID is reasonable */ - if (dest > s->max_peer) { - IVSHMEM_DPRINTF("Invalid destination VM ID (%d)\n", dest); - break; - } - - /* check doorbell range */ - if (vector < s->peers[dest].nb_eventfds) { - IVSHMEM_DPRINTF("Notifying VM %d on vector %d\n", dest, vector); - event_notifier_set(&s->peers[dest].eventfds[vector]); - } - break; - default: - IVSHMEM_DPRINTF("Invalid VM Doorbell VM %d\n", dest); - } -} - -static uint64_t ivshmem_io_read(void *opaque, hwaddr addr, - unsigned size) -{ - - IVShmemState *s = opaque; - uint32_t ret; - - switch (addr) - { - case INTRMASK: - ret = ivshmem_IntrMask_read(s); - break; - - case INTRSTATUS: - ret = ivshmem_IntrStatus_read(s); - break; - - case IVPOSITION: - /* return my VM ID if the memory is mapped */ - if (s->shm_fd > 0) { - ret = s->vm_id; - } else { - ret = -1; - } - break; - - default: - IVSHMEM_DPRINTF("why are we reading " TARGET_FMT_plx "\n", addr); - ret = 0; - } - - return ret; -} - -static const MemoryRegionOps ivshmem_mmio_ops = { - .read = ivshmem_io_read, - .write = ivshmem_io_write, - .endianness = DEVICE_NATIVE_ENDIAN, - .impl = { - .min_access_size = 4, - .max_access_size = 4, - }, -}; - -static void ivshmem_receive(void *opaque, const uint8_t *buf, int size) -{ - IVShmemState *s = opaque; - - ivshmem_IntrStatus_write(s, *buf); - - IVSHMEM_DPRINTF("ivshmem_receive 0x%02x\n", *buf); -} - -static int ivshmem_can_receive(void * opaque) -{ - return 8; -} - -static void ivshmem_event(void *opaque, int event) -{ - IVSHMEM_DPRINTF("ivshmem_event %d\n", event); -} - -static void fake_irqfd(void *opaque, const uint8_t *buf, int size) { - - EventfdEntry *entry = opaque; - PCIDevice *pdev = entry->pdev; - - IVSHMEM_DPRINTF("interrupt on vector %p %d\n", pdev, entry->vector); - msix_notify(pdev, entry->vector); -} - -static CharDriverState* create_eventfd_chr_device(void * opaque, EventNotifier *n, - int vector) -{ - /* create a event character device based on the passed eventfd */ - IVShmemState *s = opaque; - CharDriverState * chr; - int eventfd = event_notifier_get_fd(n); - - chr = qemu_chr_open_eventfd(eventfd); - - if (chr == NULL) { - fprintf(stderr, "creating eventfd for eventfd %d failed\n", eventfd); - exit(-1); - } - qemu_chr_fe_claim_no_fail(chr); - - /* if MSI is supported we need multiple interrupts */ - if (ivshmem_has_feature(s, IVSHMEM_MSI)) { - s->eventfd_table[vector].pdev = &s->dev; - s->eventfd_table[vector].vector = vector; - - qemu_chr_add_handlers(chr, ivshmem_can_receive, fake_irqfd, - ivshmem_event, &s->eventfd_table[vector]); - } else { - qemu_chr_add_handlers(chr, ivshmem_can_receive, ivshmem_receive, - ivshmem_event, s); - } - - return chr; - -} - -static int check_shm_size(IVShmemState *s, int fd) { - /* check that the guest isn't going to try and map more memory than the - * the object has allocated return -1 to indicate error */ - - struct stat buf; - - fstat(fd, &buf); - - if (s->ivshmem_size > buf.st_size) { - fprintf(stderr, - "IVSHMEM ERROR: Requested memory size greater" - " than shared object size (%" PRIu64 " > %" PRIu64")\n", - s->ivshmem_size, (uint64_t)buf.st_size); - return -1; - } else { - return 0; - } -} - -/* create the shared memory BAR when we are not using the server, so we can - * create the BAR and map the memory immediately */ -static void create_shared_memory_BAR(IVShmemState *s, int fd) { - - void * ptr; - - s->shm_fd = fd; - - ptr = mmap(0, s->ivshmem_size, PROT_READ|PROT_WRITE, MAP_SHARED, fd, 0); - - memory_region_init_ram_ptr(&s->ivshmem, "ivshmem.bar2", - s->ivshmem_size, ptr); - vmstate_register_ram(&s->ivshmem, &s->dev.qdev); - memory_region_add_subregion(&s->bar, 0, &s->ivshmem); - - /* region for shared memory */ - pci_register_bar(&s->dev, 2, s->ivshmem_attr, &s->bar); -} - -static void ivshmem_add_eventfd(IVShmemState *s, int posn, int i) -{ - memory_region_add_eventfd(&s->ivshmem_mmio, - DOORBELL, - 4, - true, - (posn << 16) | i, - &s->peers[posn].eventfds[i]); -} - -static void ivshmem_del_eventfd(IVShmemState *s, int posn, int i) -{ - memory_region_del_eventfd(&s->ivshmem_mmio, - DOORBELL, - 4, - true, - (posn << 16) | i, - &s->peers[posn].eventfds[i]); -} - -static void close_guest_eventfds(IVShmemState *s, int posn) -{ - int i, guest_curr_max; - - if (!ivshmem_has_feature(s, IVSHMEM_IOEVENTFD)) { - return; - } - - guest_curr_max = s->peers[posn].nb_eventfds; - - memory_region_transaction_begin(); - for (i = 0; i < guest_curr_max; i++) { - ivshmem_del_eventfd(s, posn, i); - } - memory_region_transaction_commit(); - for (i = 0; i < guest_curr_max; i++) { - event_notifier_cleanup(&s->peers[posn].eventfds[i]); - } - - g_free(s->peers[posn].eventfds); - s->peers[posn].nb_eventfds = 0; -} - -/* this function increase the dynamic storage need to store data about other - * guests */ -static void increase_dynamic_storage(IVShmemState *s, int new_min_size) { - - int j, old_nb_alloc; - - old_nb_alloc = s->nb_peers; - - while (new_min_size >= s->nb_peers) - s->nb_peers = s->nb_peers * 2; - - IVSHMEM_DPRINTF("bumping storage to %d guests\n", s->nb_peers); - s->peers = g_realloc(s->peers, s->nb_peers * sizeof(Peer)); - - /* zero out new pointers */ - for (j = old_nb_alloc; j < s->nb_peers; j++) { - s->peers[j].eventfds = NULL; - s->peers[j].nb_eventfds = 0; - } -} - -static void ivshmem_read(void *opaque, const uint8_t * buf, int flags) -{ - IVShmemState *s = opaque; - int incoming_fd, tmp_fd; - int guest_max_eventfd; - long incoming_posn; - - memcpy(&incoming_posn, buf, sizeof(long)); - /* pick off s->server_chr->msgfd and store it, posn should accompany msg */ - tmp_fd = qemu_chr_fe_get_msgfd(s->server_chr); - IVSHMEM_DPRINTF("posn is %ld, fd is %d\n", incoming_posn, tmp_fd); - - /* make sure we have enough space for this guest */ - if (incoming_posn >= s->nb_peers) { - increase_dynamic_storage(s, incoming_posn); - } - - if (tmp_fd == -1) { - /* if posn is positive and unseen before then this is our posn*/ - if ((incoming_posn >= 0) && - (s->peers[incoming_posn].eventfds == NULL)) { - /* receive our posn */ - s->vm_id = incoming_posn; - return; - } else { - /* otherwise an fd == -1 means an existing guest has gone away */ - IVSHMEM_DPRINTF("posn %ld has gone away\n", incoming_posn); - close_guest_eventfds(s, incoming_posn); - return; - } - } - - /* because of the implementation of get_msgfd, we need a dup */ - incoming_fd = dup(tmp_fd); - - if (incoming_fd == -1) { - fprintf(stderr, "could not allocate file descriptor %s\n", - strerror(errno)); - return; - } - - /* if the position is -1, then it's shared memory region fd */ - if (incoming_posn == -1) { - - void * map_ptr; - - s->max_peer = 0; - - if (check_shm_size(s, incoming_fd) == -1) { - exit(-1); - } - - /* mmap the region and map into the BAR2 */ - map_ptr = mmap(0, s->ivshmem_size, PROT_READ|PROT_WRITE, MAP_SHARED, - incoming_fd, 0); - memory_region_init_ram_ptr(&s->ivshmem, - "ivshmem.bar2", s->ivshmem_size, map_ptr); - vmstate_register_ram(&s->ivshmem, &s->dev.qdev); - - IVSHMEM_DPRINTF("guest h/w addr = %" PRIu64 ", size = %" PRIu64 "\n", - s->ivshmem_offset, s->ivshmem_size); - - memory_region_add_subregion(&s->bar, 0, &s->ivshmem); - - /* only store the fd if it is successfully mapped */ - s->shm_fd = incoming_fd; - - return; - } - - /* each guest has an array of eventfds, and we keep track of how many - * guests for each VM */ - guest_max_eventfd = s->peers[incoming_posn].nb_eventfds; - - if (guest_max_eventfd == 0) { - /* one eventfd per MSI vector */ - s->peers[incoming_posn].eventfds = g_new(EventNotifier, s->vectors); - } - - /* this is an eventfd for a particular guest VM */ - IVSHMEM_DPRINTF("eventfds[%ld][%d] = %d\n", incoming_posn, - guest_max_eventfd, incoming_fd); - event_notifier_init_fd(&s->peers[incoming_posn].eventfds[guest_max_eventfd], - incoming_fd); - - /* increment count for particular guest */ - s->peers[incoming_posn].nb_eventfds++; - - /* keep track of the maximum VM ID */ - if (incoming_posn > s->max_peer) { - s->max_peer = incoming_posn; - } - - if (incoming_posn == s->vm_id) { - s->eventfd_chr[guest_max_eventfd] = create_eventfd_chr_device(s, - &s->peers[s->vm_id].eventfds[guest_max_eventfd], - guest_max_eventfd); - } - - if (ivshmem_has_feature(s, IVSHMEM_IOEVENTFD)) { - ivshmem_add_eventfd(s, incoming_posn, guest_max_eventfd); - } -} - -/* Select the MSI-X vectors used by device. - * ivshmem maps events to vectors statically, so - * we just enable all vectors on init and after reset. */ -static void ivshmem_use_msix(IVShmemState * s) -{ - int i; - - if (!msix_present(&s->dev)) { - return; - } - - for (i = 0; i < s->vectors; i++) { - msix_vector_use(&s->dev, i); - } -} - -static void ivshmem_reset(DeviceState *d) -{ - IVShmemState *s = DO_UPCAST(IVShmemState, dev.qdev, d); - - s->intrstatus = 0; - ivshmem_use_msix(s); -} - -static uint64_t ivshmem_get_size(IVShmemState * s) { - - uint64_t value; - char *ptr; - - value = strtoull(s->sizearg, &ptr, 10); - switch (*ptr) { - case 0: case 'M': case 'm': - value <<= 20; - break; - case 'G': case 'g': - value <<= 30; - break; - default: - fprintf(stderr, "qemu: invalid ram size: %s\n", s->sizearg); - exit(1); - } - - /* BARs must be a power of 2 */ - if (!is_power_of_two(value)) { - fprintf(stderr, "ivshmem: size must be power of 2\n"); - exit(1); - } - - return value; -} - -static void ivshmem_setup_msi(IVShmemState * s) -{ - if (msix_init_exclusive_bar(&s->dev, s->vectors, 1)) { - IVSHMEM_DPRINTF("msix initialization failed\n"); - exit(1); - } - - IVSHMEM_DPRINTF("msix initialized (%d vectors)\n", s->vectors); - - /* allocate QEMU char devices for receiving interrupts */ - s->eventfd_table = g_malloc0(s->vectors * sizeof(EventfdEntry)); - - ivshmem_use_msix(s); -} - -static void ivshmem_save(QEMUFile* f, void *opaque) -{ - IVShmemState *proxy = opaque; - - IVSHMEM_DPRINTF("ivshmem_save\n"); - pci_device_save(&proxy->dev, f); - - if (ivshmem_has_feature(proxy, IVSHMEM_MSI)) { - msix_save(&proxy->dev, f); - } else { - qemu_put_be32(f, proxy->intrstatus); - qemu_put_be32(f, proxy->intrmask); - } - -} - -static int ivshmem_load(QEMUFile* f, void *opaque, int version_id) -{ - IVSHMEM_DPRINTF("ivshmem_load\n"); - - IVShmemState *proxy = opaque; - int ret; - - if (version_id > 0) { - return -EINVAL; - } - - if (proxy->role_val == IVSHMEM_PEER) { - fprintf(stderr, "ivshmem: 'peer' devices are not migratable\n"); - return -EINVAL; - } - - ret = pci_device_load(&proxy->dev, f); - if (ret) { - return ret; - } - - if (ivshmem_has_feature(proxy, IVSHMEM_MSI)) { - msix_load(&proxy->dev, f); - ivshmem_use_msix(proxy); - } else { - proxy->intrstatus = qemu_get_be32(f); - proxy->intrmask = qemu_get_be32(f); - } - - return 0; -} - -static void ivshmem_write_config(PCIDevice *pci_dev, uint32_t address, - uint32_t val, int len) -{ - pci_default_write_config(pci_dev, address, val, len); - msix_write_config(pci_dev, address, val, len); -} - -static int pci_ivshmem_init(PCIDevice *dev) -{ - IVShmemState *s = DO_UPCAST(IVShmemState, dev, dev); - uint8_t *pci_conf; - - if (s->sizearg == NULL) - s->ivshmem_size = 4 << 20; /* 4 MB default */ - else { - s->ivshmem_size = ivshmem_get_size(s); - } - - register_savevm(&s->dev.qdev, "ivshmem", 0, 0, ivshmem_save, ivshmem_load, - dev); - - /* IRQFD requires MSI */ - if (ivshmem_has_feature(s, IVSHMEM_IOEVENTFD) && - !ivshmem_has_feature(s, IVSHMEM_MSI)) { - fprintf(stderr, "ivshmem: ioeventfd/irqfd requires MSI\n"); - exit(1); - } - - /* check that role is reasonable */ - if (s->role) { - if (strncmp(s->role, "peer", 5) == 0) { - s->role_val = IVSHMEM_PEER; - } else if (strncmp(s->role, "master", 7) == 0) { - s->role_val = IVSHMEM_MASTER; - } else { - fprintf(stderr, "ivshmem: 'role' must be 'peer' or 'master'\n"); - exit(1); - } - } else { - s->role_val = IVSHMEM_MASTER; /* default */ - } - - if (s->role_val == IVSHMEM_PEER) { - error_set(&s->migration_blocker, QERR_DEVICE_FEATURE_BLOCKS_MIGRATION, - "peer mode", "ivshmem"); - migrate_add_blocker(s->migration_blocker); - } - - pci_conf = s->dev.config; - pci_conf[PCI_COMMAND] = PCI_COMMAND_IO | PCI_COMMAND_MEMORY; - - pci_config_set_interrupt_pin(pci_conf, 1); - - s->shm_fd = 0; - - memory_region_init_io(&s->ivshmem_mmio, &ivshmem_mmio_ops, s, - "ivshmem-mmio", IVSHMEM_REG_BAR_SIZE); - - /* region for registers*/ - pci_register_bar(&s->dev, 0, PCI_BASE_ADDRESS_SPACE_MEMORY, - &s->ivshmem_mmio); - - memory_region_init(&s->bar, "ivshmem-bar2-container", s->ivshmem_size); - s->ivshmem_attr = PCI_BASE_ADDRESS_SPACE_MEMORY | - PCI_BASE_ADDRESS_MEM_PREFETCH; - if (s->ivshmem_64bit) { - s->ivshmem_attr |= PCI_BASE_ADDRESS_MEM_TYPE_64; - } - - if ((s->server_chr != NULL) && - (strncmp(s->server_chr->filename, "unix:", 5) == 0)) { - /* if we get a UNIX socket as the parameter we will talk - * to the ivshmem server to receive the memory region */ - - if (s->shmobj != NULL) { - fprintf(stderr, "WARNING: do not specify both 'chardev' " - "and 'shm' with ivshmem\n"); - } - - IVSHMEM_DPRINTF("using shared memory server (socket = %s)\n", - s->server_chr->filename); - - if (ivshmem_has_feature(s, IVSHMEM_MSI)) { - ivshmem_setup_msi(s); - } - - /* we allocate enough space for 16 guests and grow as needed */ - s->nb_peers = 16; - s->vm_id = -1; - - /* allocate/initialize space for interrupt handling */ - s->peers = g_malloc0(s->nb_peers * sizeof(Peer)); - - pci_register_bar(&s->dev, 2, s->ivshmem_attr, &s->bar); - - s->eventfd_chr = g_malloc0(s->vectors * sizeof(CharDriverState *)); - - qemu_chr_add_handlers(s->server_chr, ivshmem_can_receive, ivshmem_read, - ivshmem_event, s); - } else { - /* just map the file immediately, we're not using a server */ - int fd; - - if (s->shmobj == NULL) { - fprintf(stderr, "Must specify 'chardev' or 'shm' to ivshmem\n"); - } - - IVSHMEM_DPRINTF("using shm_open (shm object = %s)\n", s->shmobj); - - /* try opening with O_EXCL and if it succeeds zero the memory - * by truncating to 0 */ - if ((fd = shm_open(s->shmobj, O_CREAT|O_RDWR|O_EXCL, - S_IRWXU|S_IRWXG|S_IRWXO)) > 0) { - /* truncate file to length PCI device's memory */ - if (ftruncate(fd, s->ivshmem_size) != 0) { - fprintf(stderr, "ivshmem: could not truncate shared file\n"); - } - - } else if ((fd = shm_open(s->shmobj, O_CREAT|O_RDWR, - S_IRWXU|S_IRWXG|S_IRWXO)) < 0) { - fprintf(stderr, "ivshmem: could not open shared file\n"); - exit(-1); - - } - - if (check_shm_size(s, fd) == -1) { - exit(-1); - } - - create_shared_memory_BAR(s, fd); - - } - - s->dev.config_write = ivshmem_write_config; - - return 0; -} - -static void pci_ivshmem_uninit(PCIDevice *dev) -{ - IVShmemState *s = DO_UPCAST(IVShmemState, dev, dev); - - if (s->migration_blocker) { - migrate_del_blocker(s->migration_blocker); - error_free(s->migration_blocker); - } - - memory_region_destroy(&s->ivshmem_mmio); - memory_region_del_subregion(&s->bar, &s->ivshmem); - vmstate_unregister_ram(&s->ivshmem, &s->dev.qdev); - memory_region_destroy(&s->ivshmem); - memory_region_destroy(&s->bar); - unregister_savevm(&dev->qdev, "ivshmem", s); -} - -static Property ivshmem_properties[] = { - DEFINE_PROP_CHR("chardev", IVShmemState, server_chr), - DEFINE_PROP_STRING("size", IVShmemState, sizearg), - DEFINE_PROP_UINT32("vectors", IVShmemState, vectors, 1), - DEFINE_PROP_BIT("ioeventfd", IVShmemState, features, IVSHMEM_IOEVENTFD, false), - DEFINE_PROP_BIT("msi", IVShmemState, features, IVSHMEM_MSI, true), - DEFINE_PROP_STRING("shm", IVShmemState, shmobj), - DEFINE_PROP_STRING("role", IVShmemState, role), - DEFINE_PROP_UINT32("use64", IVShmemState, ivshmem_64bit, 1), - DEFINE_PROP_END_OF_LIST(), -}; - -static void ivshmem_class_init(ObjectClass *klass, void *data) -{ - DeviceClass *dc = DEVICE_CLASS(klass); - PCIDeviceClass *k = PCI_DEVICE_CLASS(klass); - - k->init = pci_ivshmem_init; - k->exit = pci_ivshmem_uninit; - k->vendor_id = PCI_VENDOR_ID_IVSHMEM; - k->device_id = PCI_DEVICE_ID_IVSHMEM; - k->class_id = PCI_CLASS_MEMORY_RAM; - dc->reset = ivshmem_reset; - dc->props = ivshmem_properties; -} - -static const TypeInfo ivshmem_info = { - .name = "ivshmem", - .parent = TYPE_PCI_DEVICE, - .instance_size = sizeof(IVShmemState), - .class_init = ivshmem_class_init, -}; - -static void ivshmem_register_types(void) -{ - type_register_static(&ivshmem_info); -} - -type_init(ivshmem_register_types) |