diff options
Diffstat (limited to 'hw/virtio/vhost-vdpa.c')
| -rw-r--r-- | hw/virtio/vhost-vdpa.c | 158 |
1 files changed, 153 insertions, 5 deletions
diff --git a/hw/virtio/vhost-vdpa.c b/hw/virtio/vhost-vdpa.c index aedc52c..4f10399 100644 --- a/hw/virtio/vhost-vdpa.c +++ b/hw/virtio/vhost-vdpa.c @@ -20,6 +20,8 @@ #include "hw/virtio/vhost-vdpa.h" #include "qemu/main-loop.h" #include "cpu.h" +#include "trace.h" +#include "qemu-common.h" static bool vhost_vdpa_listener_skipped_section(MemoryRegionSection *section) { @@ -48,6 +50,9 @@ static int vhost_vdpa_dma_map(struct vhost_vdpa *v, hwaddr iova, hwaddr size, msg.iotlb.perm = readonly ? VHOST_ACCESS_RO : VHOST_ACCESS_RW; msg.iotlb.type = VHOST_IOTLB_UPDATE; + trace_vhost_vdpa_dma_map(v, fd, msg.type, msg.iotlb.iova, msg.iotlb.size, + msg.iotlb.uaddr, msg.iotlb.perm, msg.iotlb.type); + if (write(fd, &msg, sizeof(msg)) != sizeof(msg)) { error_report("failed to write, fd=%d, errno=%d (%s)", fd, errno, strerror(errno)); @@ -69,6 +74,9 @@ static int vhost_vdpa_dma_unmap(struct vhost_vdpa *v, hwaddr iova, msg.iotlb.size = size; msg.iotlb.type = VHOST_IOTLB_INVALIDATE; + trace_vhost_vdpa_dma_unmap(v, fd, msg.type, msg.iotlb.iova, + msg.iotlb.size, msg.iotlb.type); + if (write(fd, &msg, sizeof(msg)) != sizeof(msg)) { error_report("failed to write, fd=%d, errno=%d (%s)", fd, errno, strerror(errno)); @@ -78,6 +86,46 @@ static int vhost_vdpa_dma_unmap(struct vhost_vdpa *v, hwaddr iova, return ret; } +static void vhost_vdpa_listener_begin(MemoryListener *listener) +{ + struct vhost_vdpa *v = container_of(listener, struct vhost_vdpa, listener); + struct vhost_dev *dev = v->dev; + struct vhost_msg_v2 msg; + int fd = v->device_fd; + + if (!(dev->backend_cap & (0x1ULL << VHOST_BACKEND_F_IOTLB_BATCH))) { + return; + } + + msg.type = v->msg_type; + msg.iotlb.type = VHOST_IOTLB_BATCH_BEGIN; + + if (write(fd, &msg, sizeof(msg)) != sizeof(msg)) { + error_report("failed to write, fd=%d, errno=%d (%s)", + fd, errno, strerror(errno)); + } +} + +static void vhost_vdpa_listener_commit(MemoryListener *listener) +{ + struct vhost_vdpa *v = container_of(listener, struct vhost_vdpa, listener); + struct vhost_dev *dev = v->dev; + struct vhost_msg_v2 msg; + int fd = v->device_fd; + + if (!(dev->backend_cap & (0x1ULL << VHOST_BACKEND_F_IOTLB_BATCH))) { + return; + } + + msg.type = v->msg_type; + msg.iotlb.type = VHOST_IOTLB_BATCH_END; + + if (write(fd, &msg, sizeof(msg)) != sizeof(msg)) { + error_report("failed to write, fd=%d, errno=%d (%s)", + fd, errno, strerror(errno)); + } +} + static void vhost_vdpa_listener_region_add(MemoryListener *listener, MemoryRegionSection *section) { @@ -114,6 +162,9 @@ static void vhost_vdpa_listener_region_add(MemoryListener *listener, section->offset_within_region + (iova - section->offset_within_address_space); + trace_vhost_vdpa_listener_region_add(v, iova, int128_get64(llend), + vaddr, section->readonly); + llsize = int128_sub(llend, int128_make64(iova)); ret = vhost_vdpa_dma_map(v, iova, int128_get64(llsize), @@ -169,6 +220,8 @@ static void vhost_vdpa_listener_region_del(MemoryListener *listener, llend = int128_add(llend, section->size); llend = int128_and(llend, int128_exts64(TARGET_PAGE_MASK)); + trace_vhost_vdpa_listener_region_del(v, iova, int128_get64(llend)); + if (int128_ge(int128_make64(iova), llend)) { return; } @@ -188,6 +241,8 @@ static void vhost_vdpa_listener_region_del(MemoryListener *listener, * depends on the addnop(). */ static const MemoryListener vhost_vdpa_memory_listener = { + .begin = vhost_vdpa_listener_begin, + .commit = vhost_vdpa_listener_commit, .region_add = vhost_vdpa_listener_region_add, .region_del = vhost_vdpa_listener_region_del, }; @@ -207,6 +262,7 @@ static void vhost_vdpa_add_status(struct vhost_dev *dev, uint8_t status) { uint8_t s; + trace_vhost_vdpa_add_status(dev, status); if (vhost_vdpa_call(dev, VHOST_VDPA_GET_STATUS, &s)) { return; } @@ -221,8 +277,10 @@ static int vhost_vdpa_init(struct vhost_dev *dev, void *opaque) struct vhost_vdpa *v; uint64_t features; assert(dev->vhost_ops->backend_type == VHOST_BACKEND_TYPE_VDPA); + trace_vhost_vdpa_init(dev, opaque); v = opaque; + v->dev = dev; dev->opaque = opaque ; vhost_vdpa_call(dev, VHOST_GET_FEATURES, &features); dev->backend_features = features; @@ -240,6 +298,7 @@ static int vhost_vdpa_cleanup(struct vhost_dev *dev) struct vhost_vdpa *v; assert(dev->vhost_ops->backend_type == VHOST_BACKEND_TYPE_VDPA); v = dev->opaque; + trace_vhost_vdpa_cleanup(dev, v); memory_listener_unregister(&v->listener); dev->opaque = NULL; @@ -248,13 +307,25 @@ static int vhost_vdpa_cleanup(struct vhost_dev *dev) static int vhost_vdpa_memslots_limit(struct vhost_dev *dev) { + trace_vhost_vdpa_memslots_limit(dev, INT_MAX); return INT_MAX; } static int vhost_vdpa_set_mem_table(struct vhost_dev *dev, struct vhost_memory *mem) { - + trace_vhost_vdpa_set_mem_table(dev, mem->nregions, mem->padding); + if (trace_event_get_state_backends(TRACE_VHOST_VDPA_SET_MEM_TABLE) && + trace_event_get_state_backends(TRACE_VHOST_VDPA_DUMP_REGIONS)) { + int i; + for (i = 0; i < mem->nregions; i++) { + trace_vhost_vdpa_dump_regions(dev, i, + mem->regions[i].guest_phys_addr, + mem->regions[i].memory_size, + mem->regions[i].userspace_addr, + mem->regions[i].flags_padding); + } + } if (mem->padding) { return -1; } @@ -266,6 +337,7 @@ static int vhost_vdpa_set_features(struct vhost_dev *dev, uint64_t features) { int ret; + trace_vhost_vdpa_set_features(dev, features); ret = vhost_vdpa_call(dev, VHOST_SET_FEATURES, &features); uint8_t status = 0; if (ret) { @@ -277,29 +349,59 @@ static int vhost_vdpa_set_features(struct vhost_dev *dev, return !(status & VIRTIO_CONFIG_S_FEATURES_OK); } +static int vhost_vdpa_set_backend_cap(struct vhost_dev *dev) +{ + uint64_t features; + uint64_t f = 0x1ULL << VHOST_BACKEND_F_IOTLB_MSG_V2 | + 0x1ULL << VHOST_BACKEND_F_IOTLB_BATCH; + int r; + + if (vhost_vdpa_call(dev, VHOST_GET_BACKEND_FEATURES, &features)) { + return 0; + } + + features &= f; + r = vhost_vdpa_call(dev, VHOST_SET_BACKEND_FEATURES, &features); + if (r) { + return 0; + } + + dev->backend_cap = features; + + return 0; +} + int vhost_vdpa_get_device_id(struct vhost_dev *dev, uint32_t *device_id) { - return vhost_vdpa_call(dev, VHOST_VDPA_GET_DEVICE_ID, device_id); + int ret; + ret = vhost_vdpa_call(dev, VHOST_VDPA_GET_DEVICE_ID, device_id); + trace_vhost_vdpa_get_device_id(dev, *device_id); + return ret; } static int vhost_vdpa_reset_device(struct vhost_dev *dev) { + int ret; uint8_t status = 0; - return vhost_vdpa_call(dev, VHOST_VDPA_SET_STATUS, &status); + ret = vhost_vdpa_call(dev, VHOST_VDPA_SET_STATUS, &status); + trace_vhost_vdpa_reset_device(dev, status); + return ret; } static int vhost_vdpa_get_vq_index(struct vhost_dev *dev, int idx) { assert(idx >= dev->vq_index && idx < dev->vq_index + dev->nvqs); + trace_vhost_vdpa_get_vq_index(dev, idx, idx - dev->vq_index); return idx - dev->vq_index; } static int vhost_vdpa_set_vring_ready(struct vhost_dev *dev) { int i; + trace_vhost_vdpa_set_vring_ready(dev); for (i = 0; i < dev->nvqs; ++i) { struct vhost_vring_state state = { .index = dev->vq_index + i, @@ -310,6 +412,19 @@ static int vhost_vdpa_set_vring_ready(struct vhost_dev *dev) return 0; } +static void vhost_vdpa_dump_config(struct vhost_dev *dev, const uint8_t *config, + uint32_t config_len) +{ + int b, len; + char line[QEMU_HEXDUMP_LINE_LEN]; + + for (b = 0; b < config_len; b += 16) { + len = config_len - b; + qemu_hexdump_line(line, b, config, len, false); + trace_vhost_vdpa_dump_config(dev, line); + } +} + static int vhost_vdpa_set_config(struct vhost_dev *dev, const uint8_t *data, uint32_t offset, uint32_t size, uint32_t flags) @@ -318,10 +433,15 @@ static int vhost_vdpa_set_config(struct vhost_dev *dev, const uint8_t *data, int ret; unsigned long config_size = offsetof(struct vhost_vdpa_config, buf); + trace_vhost_vdpa_set_config(dev, offset, size, flags); config = g_malloc(size + config_size); config->off = offset; config->len = size; memcpy(config->buf, data, size); + if (trace_event_get_state_backends(TRACE_VHOST_VDPA_SET_CONFIG) && + trace_event_get_state_backends(TRACE_VHOST_VDPA_DUMP_CONFIG)) { + vhost_vdpa_dump_config(dev, data, size); + } ret = vhost_vdpa_call(dev, VHOST_VDPA_SET_CONFIG, config); g_free(config); return ret; @@ -334,18 +454,24 @@ static int vhost_vdpa_get_config(struct vhost_dev *dev, uint8_t *config, unsigned long config_size = offsetof(struct vhost_vdpa_config, buf); int ret; + trace_vhost_vdpa_get_config(dev, config, config_len); v_config = g_malloc(config_len + config_size); v_config->len = config_len; v_config->off = 0; ret = vhost_vdpa_call(dev, VHOST_VDPA_GET_CONFIG, v_config); memcpy(config, v_config->buf, config_len); g_free(v_config); + if (trace_event_get_state_backends(TRACE_VHOST_VDPA_GET_CONFIG) && + trace_event_get_state_backends(TRACE_VHOST_VDPA_DUMP_CONFIG)) { + vhost_vdpa_dump_config(dev, config, config_len); + } return ret; } static int vhost_vdpa_dev_start(struct vhost_dev *dev, bool started) { struct vhost_vdpa *v = dev->opaque; + trace_vhost_vdpa_dev_start(dev, started); if (started) { uint8_t status = 0; memory_listener_register(&v->listener, &address_space_memory); @@ -367,53 +493,72 @@ static int vhost_vdpa_dev_start(struct vhost_dev *dev, bool started) static int vhost_vdpa_set_log_base(struct vhost_dev *dev, uint64_t base, struct vhost_log *log) { + trace_vhost_vdpa_set_log_base(dev, base, log->size, log->refcnt, log->fd, + log->log); return vhost_vdpa_call(dev, VHOST_SET_LOG_BASE, &base); } static int vhost_vdpa_set_vring_addr(struct vhost_dev *dev, struct vhost_vring_addr *addr) { + trace_vhost_vdpa_set_vring_addr(dev, addr->index, addr->flags, + addr->desc_user_addr, addr->used_user_addr, + addr->avail_user_addr, + addr->log_guest_addr); return vhost_vdpa_call(dev, VHOST_SET_VRING_ADDR, addr); } static int vhost_vdpa_set_vring_num(struct vhost_dev *dev, struct vhost_vring_state *ring) { + trace_vhost_vdpa_set_vring_num(dev, ring->index, ring->num); return vhost_vdpa_call(dev, VHOST_SET_VRING_NUM, ring); } static int vhost_vdpa_set_vring_base(struct vhost_dev *dev, struct vhost_vring_state *ring) { + trace_vhost_vdpa_set_vring_base(dev, ring->index, ring->num); return vhost_vdpa_call(dev, VHOST_SET_VRING_BASE, ring); } static int vhost_vdpa_get_vring_base(struct vhost_dev *dev, struct vhost_vring_state *ring) { - return vhost_vdpa_call(dev, VHOST_GET_VRING_BASE, ring); + int ret; + + ret = vhost_vdpa_call(dev, VHOST_GET_VRING_BASE, ring); + trace_vhost_vdpa_get_vring_base(dev, ring->index, ring->num); + return ret; } static int vhost_vdpa_set_vring_kick(struct vhost_dev *dev, struct vhost_vring_file *file) { + trace_vhost_vdpa_set_vring_kick(dev, file->index, file->fd); return vhost_vdpa_call(dev, VHOST_SET_VRING_KICK, file); } static int vhost_vdpa_set_vring_call(struct vhost_dev *dev, struct vhost_vring_file *file) { + trace_vhost_vdpa_set_vring_call(dev, file->index, file->fd); return vhost_vdpa_call(dev, VHOST_SET_VRING_CALL, file); } static int vhost_vdpa_get_features(struct vhost_dev *dev, uint64_t *features) { - return vhost_vdpa_call(dev, VHOST_GET_FEATURES, features); + int ret; + + ret = vhost_vdpa_call(dev, VHOST_GET_FEATURES, features); + trace_vhost_vdpa_get_features(dev, *features); + return ret; } static int vhost_vdpa_set_owner(struct vhost_dev *dev) { + trace_vhost_vdpa_set_owner(dev); return vhost_vdpa_call(dev, VHOST_SET_OWNER, NULL); } @@ -424,6 +569,8 @@ static int vhost_vdpa_vq_get_addr(struct vhost_dev *dev, addr->desc_user_addr = (uint64_t)(unsigned long)vq->desc_phys; addr->avail_user_addr = (uint64_t)(unsigned long)vq->avail_phys; addr->used_user_addr = (uint64_t)(unsigned long)vq->used_phys; + trace_vhost_vdpa_vq_get_addr(dev, vq, addr->desc_user_addr, + addr->avail_user_addr, addr->used_user_addr); return 0; } @@ -444,6 +591,7 @@ const VhostOps vdpa_ops = { .vhost_set_vring_kick = vhost_vdpa_set_vring_kick, .vhost_set_vring_call = vhost_vdpa_set_vring_call, .vhost_get_features = vhost_vdpa_get_features, + .vhost_set_backend_cap = vhost_vdpa_set_backend_cap, .vhost_set_owner = vhost_vdpa_set_owner, .vhost_set_vring_endian = NULL, .vhost_backend_memslots_limit = vhost_vdpa_memslots_limit, |