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authorLuca Boccassi <luca.boccassi@gmail.com>2018-07-24 16:52:29 +0100
committerLuca Boccassi <luca.boccassi@gmail.com>2018-07-24 16:53:31 +0100
commit43192222b329b3c984687235b0081c7fbfe484ba (patch)
tree8e74c04b227d5386d40bbd987ddf132b43ddb313 /lib/librte_vhost/vhost_user.c
parent18af4227fa5eee002b1a79207935620f6112803e (diff)
New upstream version 16.11.7upstream/16.11.7
Change-Id: I1dbe85956ca329c829b0066d16b3f902c237fbd3 Signed-off-by: Luca Boccassi <luca.boccassi@gmail.com>
Diffstat (limited to 'lib/librte_vhost/vhost_user.c')
-rw-r--r--lib/librte_vhost/vhost_user.c41
1 files changed, 29 insertions, 12 deletions
diff --git a/lib/librte_vhost/vhost_user.c b/lib/librte_vhost/vhost_user.c
index 550a1329..04c92ceb 100644
--- a/lib/librte_vhost/vhost_user.c
+++ b/lib/librte_vhost/vhost_user.c
@@ -169,7 +169,7 @@ vhost_user_set_features(struct virtio_net *dev, uint64_t features)
} else {
dev->vhost_hlen = sizeof(struct virtio_net_hdr);
}
- LOG_DEBUG(VHOST_CONFIG,
+ VHOST_LOG_DEBUG(VHOST_CONFIG,
"(%d) mergeable RX buffers %s, virtio 1 %s\n",
dev->vid,
(dev->features & (1 << VIRTIO_NET_F_MRG_RXBUF)) ? "on" : "off",
@@ -396,13 +396,13 @@ vhost_user_set_vring_addr(struct virtio_net **pdev,
vq->log_guest_addr = addr->log_guest_addr;
- LOG_DEBUG(VHOST_CONFIG, "(%d) mapped address desc: %p\n",
+ VHOST_LOG_DEBUG(VHOST_CONFIG, "(%d) mapped address desc: %p\n",
dev->vid, vq->desc);
- LOG_DEBUG(VHOST_CONFIG, "(%d) mapped address avail: %p\n",
+ VHOST_LOG_DEBUG(VHOST_CONFIG, "(%d) mapped address avail: %p\n",
dev->vid, vq->avail);
- LOG_DEBUG(VHOST_CONFIG, "(%d) mapped address used: %p\n",
+ VHOST_LOG_DEBUG(VHOST_CONFIG, "(%d) mapped address used: %p\n",
dev->vid, vq->used);
- LOG_DEBUG(VHOST_CONFIG, "(%d) log_guest_addr: %" PRIx64 "\n",
+ VHOST_LOG_DEBUG(VHOST_CONFIG, "(%d) log_guest_addr: %" PRIx64 "\n",
dev->vid, vq->log_guest_addr);
return 0;
@@ -421,7 +421,7 @@ vhost_user_set_vring_base(struct virtio_net *dev,
return 0;
}
-static void
+static int
add_one_guest_page(struct virtio_net *dev, uint64_t guest_phys_addr,
uint64_t host_phys_addr, uint64_t size)
{
@@ -431,6 +431,10 @@ add_one_guest_page(struct virtio_net *dev, uint64_t guest_phys_addr,
dev->max_guest_pages *= 2;
dev->guest_pages = realloc(dev->guest_pages,
dev->max_guest_pages * sizeof(*page));
+ if (!dev->guest_pages) {
+ RTE_LOG(ERR, VHOST_CONFIG, "cannot realloc guest_pages\n");
+ return -1;
+ }
}
if (dev->nr_guest_pages > 0) {
@@ -439,7 +443,7 @@ add_one_guest_page(struct virtio_net *dev, uint64_t guest_phys_addr,
if (host_phys_addr == last_page->host_phys_addr +
last_page->size) {
last_page->size += size;
- return;
+ return 0;
}
}
@@ -447,9 +451,11 @@ add_one_guest_page(struct virtio_net *dev, uint64_t guest_phys_addr,
page->guest_phys_addr = guest_phys_addr;
page->host_phys_addr = host_phys_addr;
page->size = size;
+
+ return 0;
}
-static void
+static int
add_guest_pages(struct virtio_net *dev, struct virtio_memory_region *reg,
uint64_t page_size)
{
@@ -463,7 +469,9 @@ add_guest_pages(struct virtio_net *dev, struct virtio_memory_region *reg,
size = page_size - (guest_phys_addr & (page_size - 1));
size = RTE_MIN(size, reg_size);
- add_one_guest_page(dev, guest_phys_addr, host_phys_addr, size);
+ if (add_one_guest_page(dev, guest_phys_addr, host_phys_addr, size) < 0)
+ return -1;
+
host_user_addr += size;
guest_phys_addr += size;
reg_size -= size;
@@ -472,12 +480,16 @@ add_guest_pages(struct virtio_net *dev, struct virtio_memory_region *reg,
size = RTE_MIN(reg_size, page_size);
host_phys_addr = rte_mem_virt2phy((void *)(uintptr_t)
host_user_addr);
- add_one_guest_page(dev, guest_phys_addr, host_phys_addr, size);
+ if (add_one_guest_page(dev, guest_phys_addr, host_phys_addr,
+ size) < 0)
+ return -1;
host_user_addr += size;
guest_phys_addr += size;
reg_size -= size;
}
+
+ return 0;
}
#ifdef RTE_LIBRTE_VHOST_DEBUG
@@ -624,7 +636,12 @@ vhost_user_set_mem_table(struct virtio_net *dev, struct VhostUserMsg *pmsg)
mmap_offset;
if (dev->dequeue_zero_copy)
- add_guest_pages(dev, reg, alignment);
+ if (add_guest_pages(dev, reg, alignment) < 0) {
+ RTE_LOG(ERR, VHOST_CONFIG,
+ "adding guest pages to region %u failed.\n",
+ i);
+ goto err_mmap;
+ }
RTE_LOG(INFO, VHOST_CONFIG,
"guest memory region %u, size: 0x%" PRIx64 "\n"
@@ -869,7 +886,7 @@ vhost_user_set_log_base(struct virtio_net *dev, struct VhostUserMsg *msg)
* mmap from 0 to workaround a hugepage mmap bug: mmap will
* fail when offset is not page size aligned.
*/
- addr = mmap(0, size, PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0);
+ addr = mmap(0, size + off, PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0);
close(fd);
if (addr == MAP_FAILED) {
RTE_LOG(ERR, VHOST_CONFIG, "mmap log base failed!\n");