diff options
author | Paolo Bonzini <pbonzini@redhat.com> | 2013-09-20 13:36:40 +0200 |
---|---|---|
committer | Paolo Bonzini <pbonzini@redhat.com> | 2013-12-09 21:46:48 +0100 |
commit | a3fc66d9fd37acbfcee013692246a8ae42bd93bb (patch) | |
tree | 0dec56dfcd54efd032699bd87ac81f4631c034b9 /hw/virtio | |
parent | f24a684073bcdaf4e9d3c592345744ba3356d9e3 (diff) | |
download | qemu-a3fc66d9fd37acbfcee013692246a8ae42bd93bb.zip qemu-a3fc66d9fd37acbfcee013692246a8ae42bd93bb.tar.gz qemu-a3fc66d9fd37acbfcee013692246a8ae42bd93bb.tar.bz2 |
virtio-pci: remove vdev field
The vdev field is complicated to synchronize. Just access the
BusState's list of children.
Cc: qemu-stable@nongnu.org
Acked-by: Andreas Faerber <afaerber@suse.de>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'hw/virtio')
-rw-r--r-- | hw/virtio/virtio-pci.c | 110 | ||||
-rw-r--r-- | hw/virtio/virtio-pci.h | 1 |
2 files changed, 65 insertions, 46 deletions
diff --git a/hw/virtio/virtio-pci.c b/hw/virtio/virtio-pci.c index 76b7652..15b92e9 100644 --- a/hw/virtio/virtio-pci.c +++ b/hw/virtio/virtio-pci.c @@ -113,31 +113,40 @@ static inline VirtIOPCIProxy *to_virtio_pci_proxy_fast(DeviceState *d) static void virtio_pci_notify(DeviceState *d, uint16_t vector) { VirtIOPCIProxy *proxy = to_virtio_pci_proxy_fast(d); + if (msix_enabled(&proxy->pci_dev)) msix_notify(&proxy->pci_dev, vector); - else - pci_set_irq(&proxy->pci_dev, proxy->vdev->isr & 1); + else { + VirtIODevice *vdev = virtio_bus_get_device(&proxy->bus); + pci_set_irq(&proxy->pci_dev, vdev->isr & 1); + } } static void virtio_pci_save_config(DeviceState *d, QEMUFile *f) { VirtIOPCIProxy *proxy = to_virtio_pci_proxy(d); + VirtIODevice *vdev = virtio_bus_get_device(&proxy->bus); + pci_device_save(&proxy->pci_dev, f); msix_save(&proxy->pci_dev, f); if (msix_present(&proxy->pci_dev)) - qemu_put_be16(f, proxy->vdev->config_vector); + qemu_put_be16(f, vdev->config_vector); } static void virtio_pci_save_queue(DeviceState *d, int n, QEMUFile *f) { VirtIOPCIProxy *proxy = to_virtio_pci_proxy(d); + VirtIODevice *vdev = virtio_bus_get_device(&proxy->bus); + if (msix_present(&proxy->pci_dev)) - qemu_put_be16(f, virtio_queue_vector(proxy->vdev, n)); + qemu_put_be16(f, virtio_queue_vector(vdev, n)); } static int virtio_pci_load_config(DeviceState *d, QEMUFile *f) { VirtIOPCIProxy *proxy = to_virtio_pci_proxy(d); + VirtIODevice *vdev = virtio_bus_get_device(&proxy->bus); + int ret; ret = pci_device_load(&proxy->pci_dev, f); if (ret) { @@ -146,12 +155,12 @@ static int virtio_pci_load_config(DeviceState *d, QEMUFile *f) msix_unuse_all_vectors(&proxy->pci_dev); msix_load(&proxy->pci_dev, f); if (msix_present(&proxy->pci_dev)) { - qemu_get_be16s(f, &proxy->vdev->config_vector); + qemu_get_be16s(f, &vdev->config_vector); } else { - proxy->vdev->config_vector = VIRTIO_NO_VECTOR; + vdev->config_vector = VIRTIO_NO_VECTOR; } - if (proxy->vdev->config_vector != VIRTIO_NO_VECTOR) { - return msix_vector_use(&proxy->pci_dev, proxy->vdev->config_vector); + if (vdev->config_vector != VIRTIO_NO_VECTOR) { + return msix_vector_use(&proxy->pci_dev, vdev->config_vector); } return 0; } @@ -159,13 +168,15 @@ static int virtio_pci_load_config(DeviceState *d, QEMUFile *f) static int virtio_pci_load_queue(DeviceState *d, int n, QEMUFile *f) { VirtIOPCIProxy *proxy = to_virtio_pci_proxy(d); + VirtIODevice *vdev = virtio_bus_get_device(&proxy->bus); + uint16_t vector; if (msix_present(&proxy->pci_dev)) { qemu_get_be16s(f, &vector); } else { vector = VIRTIO_NO_VECTOR; } - virtio_queue_set_vector(proxy->vdev, n, vector); + virtio_queue_set_vector(vdev, n, vector); if (vector != VIRTIO_NO_VECTOR) { return msix_vector_use(&proxy->pci_dev, vector); } @@ -175,7 +186,8 @@ static int virtio_pci_load_queue(DeviceState *d, int n, QEMUFile *f) static int virtio_pci_set_host_notifier_internal(VirtIOPCIProxy *proxy, int n, bool assign, bool set_handler) { - VirtQueue *vq = virtio_get_queue(proxy->vdev, n); + VirtIODevice *vdev = virtio_bus_get_device(&proxy->bus); + VirtQueue *vq = virtio_get_queue(vdev, n); EventNotifier *notifier = virtio_queue_get_host_notifier(vq); int r = 0; @@ -200,6 +212,7 @@ static int virtio_pci_set_host_notifier_internal(VirtIOPCIProxy *proxy, static void virtio_pci_start_ioeventfd(VirtIOPCIProxy *proxy) { + VirtIODevice *vdev = virtio_bus_get_device(&proxy->bus); int n, r; if (!(proxy->flags & VIRTIO_PCI_FLAG_USE_IOEVENTFD) || @@ -209,7 +222,7 @@ static void virtio_pci_start_ioeventfd(VirtIOPCIProxy *proxy) } for (n = 0; n < VIRTIO_PCI_QUEUE_MAX; n++) { - if (!virtio_queue_get_num(proxy->vdev, n)) { + if (!virtio_queue_get_num(vdev, n)) { continue; } @@ -223,7 +236,7 @@ static void virtio_pci_start_ioeventfd(VirtIOPCIProxy *proxy) assign_error: while (--n >= 0) { - if (!virtio_queue_get_num(proxy->vdev, n)) { + if (!virtio_queue_get_num(vdev, n)) { continue; } @@ -236,6 +249,7 @@ assign_error: static void virtio_pci_stop_ioeventfd(VirtIOPCIProxy *proxy) { + VirtIODevice *vdev = virtio_bus_get_device(&proxy->bus); int r; int n; @@ -244,7 +258,7 @@ static void virtio_pci_stop_ioeventfd(VirtIOPCIProxy *proxy) } for (n = 0; n < VIRTIO_PCI_QUEUE_MAX; n++) { - if (!virtio_queue_get_num(proxy->vdev, n)) { + if (!virtio_queue_get_num(vdev, n)) { continue; } @@ -257,7 +271,7 @@ static void virtio_pci_stop_ioeventfd(VirtIOPCIProxy *proxy) static void virtio_ioport_write(void *opaque, uint32_t addr, uint32_t val) { VirtIOPCIProxy *proxy = opaque; - VirtIODevice *vdev = proxy->vdev; + VirtIODevice *vdev = virtio_bus_get_device(&proxy->bus); hwaddr pa; switch (addr) { @@ -272,7 +286,7 @@ static void virtio_ioport_write(void *opaque, uint32_t addr, uint32_t val) pa = (hwaddr)val << VIRTIO_PCI_QUEUE_ADDR_SHIFT; if (pa == 0) { virtio_pci_stop_ioeventfd(proxy); - virtio_reset(proxy->vdev); + virtio_reset(vdev); msix_unuse_all_vectors(&proxy->pci_dev); } else @@ -299,7 +313,7 @@ static void virtio_ioport_write(void *opaque, uint32_t addr, uint32_t val) } if (vdev->status == 0) { - virtio_reset(proxy->vdev); + virtio_reset(vdev); msix_unuse_all_vectors(&proxy->pci_dev); } @@ -335,7 +349,7 @@ static void virtio_ioport_write(void *opaque, uint32_t addr, uint32_t val) static uint32_t virtio_ioport_read(VirtIOPCIProxy *proxy, uint32_t addr) { - VirtIODevice *vdev = proxy->vdev; + VirtIODevice *vdev = virtio_bus_get_device(&proxy->bus); uint32_t ret = 0xFFFFFFFF; switch (addr) { @@ -381,6 +395,7 @@ static uint64_t virtio_pci_config_read(void *opaque, hwaddr addr, unsigned size) { VirtIOPCIProxy *proxy = opaque; + VirtIODevice *vdev = virtio_bus_get_device(&proxy->bus); uint32_t config = VIRTIO_PCI_CONFIG(&proxy->pci_dev); uint64_t val = 0; if (addr < config) { @@ -390,16 +405,16 @@ static uint64_t virtio_pci_config_read(void *opaque, hwaddr addr, switch (size) { case 1: - val = virtio_config_readb(proxy->vdev, addr); + val = virtio_config_readb(vdev, addr); break; case 2: - val = virtio_config_readw(proxy->vdev, addr); + val = virtio_config_readw(vdev, addr); if (virtio_is_big_endian()) { val = bswap16(val); } break; case 4: - val = virtio_config_readl(proxy->vdev, addr); + val = virtio_config_readl(vdev, addr); if (virtio_is_big_endian()) { val = bswap32(val); } @@ -413,6 +428,7 @@ static void virtio_pci_config_write(void *opaque, hwaddr addr, { VirtIOPCIProxy *proxy = opaque; uint32_t config = VIRTIO_PCI_CONFIG(&proxy->pci_dev); + VirtIODevice *vdev = virtio_bus_get_device(&proxy->bus); if (addr < config) { virtio_ioport_write(proxy, addr, val); return; @@ -424,19 +440,19 @@ static void virtio_pci_config_write(void *opaque, hwaddr addr, */ switch (size) { case 1: - virtio_config_writeb(proxy->vdev, addr, val); + virtio_config_writeb(vdev, addr, val); break; case 2: if (virtio_is_big_endian()) { val = bswap16(val); } - virtio_config_writew(proxy->vdev, addr, val); + virtio_config_writew(vdev, addr, val); break; case 4: if (virtio_is_big_endian()) { val = bswap32(val); } - virtio_config_writel(proxy->vdev, addr, val); + virtio_config_writel(vdev, addr, val); break; } } @@ -455,6 +471,7 @@ static void virtio_write_config(PCIDevice *pci_dev, uint32_t address, uint32_t val, int len) { VirtIOPCIProxy *proxy = DO_UPCAST(VirtIOPCIProxy, pci_dev, pci_dev); + VirtIODevice *vdev = virtio_bus_get_device(&proxy->bus); pci_default_write_config(pci_dev, address, val, len); @@ -462,8 +479,7 @@ static void virtio_write_config(PCIDevice *pci_dev, uint32_t address, !(pci_dev->config[PCI_COMMAND] & PCI_COMMAND_MASTER) && !(proxy->flags & VIRTIO_PCI_FLAG_BUS_MASTER_BUG)) { virtio_pci_stop_ioeventfd(proxy); - virtio_set_status(proxy->vdev, - proxy->vdev->status & ~VIRTIO_CONFIG_S_DRIVER_OK); + virtio_set_status(vdev, vdev->status & ~VIRTIO_CONFIG_S_DRIVER_OK); } } @@ -506,7 +522,8 @@ static int kvm_virtio_pci_irqfd_use(VirtIOPCIProxy *proxy, unsigned int vector) { VirtIOIRQFD *irqfd = &proxy->vector_irqfd[vector]; - VirtQueue *vq = virtio_get_queue(proxy->vdev, queue_no); + VirtIODevice *vdev = virtio_bus_get_device(&proxy->bus); + VirtQueue *vq = virtio_get_queue(vdev, queue_no); EventNotifier *n = virtio_queue_get_guest_notifier(vq); int ret; ret = kvm_irqchip_add_irqfd_notifier(kvm_state, n, NULL, irqfd->virq); @@ -517,7 +534,8 @@ static void kvm_virtio_pci_irqfd_release(VirtIOPCIProxy *proxy, unsigned int queue_no, unsigned int vector) { - VirtQueue *vq = virtio_get_queue(proxy->vdev, queue_no); + VirtIODevice *vdev = virtio_bus_get_device(&proxy->bus); + VirtQueue *vq = virtio_get_queue(vdev, queue_no); EventNotifier *n = virtio_queue_get_guest_notifier(vq); VirtIOIRQFD *irqfd = &proxy->vector_irqfd[vector]; int ret; @@ -529,7 +547,7 @@ static void kvm_virtio_pci_irqfd_release(VirtIOPCIProxy *proxy, static int kvm_virtio_pci_vector_use(VirtIOPCIProxy *proxy, int nvqs) { PCIDevice *dev = &proxy->pci_dev; - VirtIODevice *vdev = proxy->vdev; + VirtIODevice *vdev = virtio_bus_get_device(&proxy->bus); VirtioDeviceClass *k = VIRTIO_DEVICE_GET_CLASS(vdev); unsigned int vector; int ret, queue_no; @@ -578,7 +596,7 @@ undo: static void kvm_virtio_pci_vector_release(VirtIOPCIProxy *proxy, int nvqs) { PCIDevice *dev = &proxy->pci_dev; - VirtIODevice *vdev = proxy->vdev; + VirtIODevice *vdev = virtio_bus_get_device(&proxy->bus); unsigned int vector; int queue_no; VirtioDeviceClass *k = VIRTIO_DEVICE_GET_CLASS(vdev); @@ -606,8 +624,9 @@ static int virtio_pci_vq_vector_unmask(VirtIOPCIProxy *proxy, unsigned int vector, MSIMessage msg) { - VirtioDeviceClass *k = VIRTIO_DEVICE_GET_CLASS(proxy->vdev); - VirtQueue *vq = virtio_get_queue(proxy->vdev, queue_no); + VirtIODevice *vdev = virtio_bus_get_device(&proxy->bus); + VirtioDeviceClass *k = VIRTIO_DEVICE_GET_CLASS(vdev); + VirtQueue *vq = virtio_get_queue(vdev, queue_no); EventNotifier *n = virtio_queue_get_guest_notifier(vq); VirtIOIRQFD *irqfd; int ret = 0; @@ -626,10 +645,10 @@ static int virtio_pci_vq_vector_unmask(VirtIOPCIProxy *proxy, * Otherwise, set it up now. */ if (k->guest_notifier_mask) { - k->guest_notifier_mask(proxy->vdev, queue_no, false); + k->guest_notifier_mask(vdev, queue_no, false); /* Test after unmasking to avoid losing events. */ if (k->guest_notifier_pending && - k->guest_notifier_pending(proxy->vdev, queue_no)) { + k->guest_notifier_pending(vdev, queue_no)) { event_notifier_set(n); } } else { @@ -642,13 +661,14 @@ static void virtio_pci_vq_vector_mask(VirtIOPCIProxy *proxy, unsigned int queue_no, unsigned int vector) { - VirtioDeviceClass *k = VIRTIO_DEVICE_GET_CLASS(proxy->vdev); + VirtIODevice *vdev = virtio_bus_get_device(&proxy->bus); + VirtioDeviceClass *k = VIRTIO_DEVICE_GET_CLASS(vdev); /* If guest supports masking, keep irqfd but mask it. * Otherwise, clean it up now. */ if (k->guest_notifier_mask) { - k->guest_notifier_mask(proxy->vdev, queue_no, true); + k->guest_notifier_mask(vdev, queue_no, true); } else { kvm_virtio_pci_irqfd_release(proxy, queue_no, vector); } @@ -658,7 +678,7 @@ static int virtio_pci_vector_unmask(PCIDevice *dev, unsigned vector, MSIMessage msg) { VirtIOPCIProxy *proxy = container_of(dev, VirtIOPCIProxy, pci_dev); - VirtIODevice *vdev = proxy->vdev; + VirtIODevice *vdev = virtio_bus_get_device(&proxy->bus); int ret, queue_no; for (queue_no = 0; queue_no < proxy->nvqs_with_notifiers; queue_no++) { @@ -688,7 +708,7 @@ undo: static void virtio_pci_vector_mask(PCIDevice *dev, unsigned vector) { VirtIOPCIProxy *proxy = container_of(dev, VirtIOPCIProxy, pci_dev); - VirtIODevice *vdev = proxy->vdev; + VirtIODevice *vdev = virtio_bus_get_device(&proxy->bus); int queue_no; for (queue_no = 0; queue_no < proxy->nvqs_with_notifiers; queue_no++) { @@ -707,7 +727,7 @@ static void virtio_pci_vector_poll(PCIDevice *dev, unsigned int vector_end) { VirtIOPCIProxy *proxy = container_of(dev, VirtIOPCIProxy, pci_dev); - VirtIODevice *vdev = proxy->vdev; + VirtIODevice *vdev = virtio_bus_get_device(&proxy->bus); VirtioDeviceClass *k = VIRTIO_DEVICE_GET_CLASS(vdev); int queue_no; unsigned int vector; @@ -739,8 +759,9 @@ static int virtio_pci_set_guest_notifier(DeviceState *d, int n, bool assign, bool with_irqfd) { VirtIOPCIProxy *proxy = to_virtio_pci_proxy(d); - VirtioDeviceClass *vdc = VIRTIO_DEVICE_GET_CLASS(proxy->vdev); - VirtQueue *vq = virtio_get_queue(proxy->vdev, n); + VirtIODevice *vdev = virtio_bus_get_device(&proxy->bus); + VirtioDeviceClass *vdc = VIRTIO_DEVICE_GET_CLASS(vdev); + VirtQueue *vq = virtio_get_queue(vdev, n); EventNotifier *notifier = virtio_queue_get_guest_notifier(vq); if (assign) { @@ -755,7 +776,7 @@ static int virtio_pci_set_guest_notifier(DeviceState *d, int n, bool assign, } if (!msix_enabled(&proxy->pci_dev) && vdc->guest_notifier_mask) { - vdc->guest_notifier_mask(proxy->vdev, n, !assign); + vdc->guest_notifier_mask(vdev, n, !assign); } return 0; @@ -770,7 +791,7 @@ static bool virtio_pci_query_guest_notifiers(DeviceState *d) static int virtio_pci_set_guest_notifiers(DeviceState *d, int nvqs, bool assign) { VirtIOPCIProxy *proxy = to_virtio_pci_proxy(d); - VirtIODevice *vdev = proxy->vdev; + VirtIODevice *vdev = virtio_bus_get_device(&proxy->bus); VirtioDeviceClass *k = VIRTIO_DEVICE_GET_CLASS(vdev); int r, n; bool with_irqfd = msix_enabled(&proxy->pci_dev) && @@ -864,11 +885,12 @@ static int virtio_pci_set_host_notifier(DeviceState *d, int n, bool assign) static void virtio_pci_vmstate_change(DeviceState *d, bool running) { VirtIOPCIProxy *proxy = to_virtio_pci_proxy(d); + VirtIODevice *vdev = virtio_bus_get_device(&proxy->bus); if (running) { /* Try to find out if the guest has bus master disabled, but is in ready state. Then we have a buggy guest OS. */ - if ((proxy->vdev->status & VIRTIO_CONFIG_S_DRIVER_OK) && + if ((vdev->status & VIRTIO_CONFIG_S_DRIVER_OK) && !(proxy->pci_dev.config[PCI_COMMAND] & PCI_COMMAND_MASTER)) { proxy->flags |= VIRTIO_PCI_FLAG_BUS_MASTER_BUG; } @@ -943,8 +965,6 @@ static void virtio_pci_device_plugged(DeviceState *d) uint8_t *config; uint32_t size; - proxy->vdev = virtio_bus_get_device(bus); - config = proxy->pci_dev.config; if (proxy->class_code) { pci_config_set_class(config, proxy->class_code); diff --git a/hw/virtio/virtio-pci.h b/hw/virtio/virtio-pci.h index 917bcc5..dc332ae 100644 --- a/hw/virtio/virtio-pci.h +++ b/hw/virtio/virtio-pci.h @@ -82,7 +82,6 @@ typedef struct VirtioPCIClass { struct VirtIOPCIProxy { PCIDevice pci_dev; - VirtIODevice *vdev; MemoryRegion bar; uint32_t flags; uint32_t class_code; |