examples/vhost: check memory table query

This patch fixes unchecked return value for rte_vhost_get_mem_table(),
which is reported by coverity.

Coverity issue: 364233
Fixes: ca059fa5e290 ("examples/

examples/vhost: check memory table query

This patch fixes unchecked return value for rte_vhost_get_mem_table(),
which is reported by coverity.

Coverity issue: 364233
Fixes: ca059fa5e290 ("examples/vhost: demonstrate the new generic APIs")
Cc: [email protected]

Signed-off-by: Chenbo Xia <[email protected]>
Reviewed-by: Maxime Coquelin <[email protected]>

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examples/vhost: relax memory ordering when enqueue/dequeue

Use C11 atomic APIs with one-way barriers to replace two-way
barriers when operating enqueue/dequeue. Used->idx and avail->idx
are the sync

examples/vhost: relax memory ordering when enqueue/dequeue

Use C11 atomic APIs with one-way barriers to replace two-way
barriers when operating enqueue/dequeue. Used->idx and avail->idx
are the synchronization points for split vring.

Signed-off-by: Joyce Kong <[email protected]>
Reviewed-by: Ruifeng Wang <[email protected]>
Reviewed-by: Maxime Coquelin <[email protected]>

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examples/vhost: fix header copy to discontiguous desc buffer

In the loop to copy virtio-net header to the descriptor buffer,
destination pointer was incremented instead of the source
pointer.

Cover

examples/vhost: fix header copy to discontiguous desc buffer

In the loop to copy virtio-net header to the descriptor buffer,
destination pointer was incremented instead of the source
pointer.

Coverity issue: 277240
Fixes: 82c93a567d3b ("examples/vhost: move to safe GPA translation API")

Signed-off-by: Maxime Coquelin <[email protected]>

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examples/vhost: move to safe GPA translation API

This patch uses the new rte_vhost_va_from_guest_pa() API
to ensure the application doesn't perform out-of-bound
accesses either because of a maliciou

examples/vhost: move to safe GPA translation API

This patch uses the new rte_vhost_va_from_guest_pa() API
to ensure the application doesn't perform out-of-bound
accesses either because of a malicious guest providing an
incorrect descriptor length, or because the buffer is
contiguous in guest physical address space but not in the
host process virtual address space.

This issue has been assigned CVE-2018-1059.

Signed-off-by: Maxime Coquelin <[email protected]>

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vhost: introduce vring call API

Users of librte_vhost currently implement the vring call operation
themselves. Each caller performs the operation slightly differently.

This patch introduces a new

vhost: introduce vring call API

Users of librte_vhost currently implement the vring call operation
themselves. Each caller performs the operation slightly differently.

This patch introduces a new librte_vhost API called
rte_vhost_vring_call() that performs the operation so that vhost-user
applications don't have to duplicate it.

Signed-off-by: Stefan Hajnoczi <[email protected]>
Reviewed-by: Maxime Coquelin <[email protected]>
Acked-by: Yuanhan Liu <[email protected]>

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examples: use SPDX tag for Intel copyright files

Replace the BSD license header with the SPDX tag for files
with only an Intel copyright on them.

Signed-off-by: Bruce Richardson <bruce.richardson@i

examples: use SPDX tag for Intel copyright files

Replace the BSD license header with the SPDX tag for files
with only an Intel copyright on them.

Signed-off-by: Bruce Richardson <[email protected]>

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eal: introduce macro for always inline

Different drivers use internal macros like force_inline for compiler
always inline feature.
Standardizing it through __rte_always_inline macro.

Verified the c

eal: introduce macro for always inline

Different drivers use internal macros like force_inline for compiler
always inline feature.
Standardizing it through __rte_always_inline macro.

Verified the change by comparing the output binary file.
No difference found in the output binary file with this change.

Signed-off-by: Jerin Jacob <[email protected]>
Acked-by: Bruce Richardson <[email protected]>

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examples/vhost: fix uninitialized descriptor indexes

Fixing the below error by returning from the function early
when count == 0.

Issue flagged by GCC 7.1.1

examples/vhost/virtio_net.c:370:38: err

examples/vhost: fix uninitialized descriptor indexes

Fixing the below error by returning from the function early
when count == 0.

Issue flagged by GCC 7.1.1

examples/vhost/virtio_net.c:370:38: error: ‘desc_indexes[0]’ may be used
uninitialized in this function [-Werror=maybe-uninitialized]
rte_prefetch0(&vr->desc[desc_indexes[0]]);

Fixes: ca059fa5e290 ("examples/vhost: demonstrate the new generic APIs")
Cc: [email protected]

Signed-off-by: Jerin Jacob <[email protected]>
Reviewed-by: Maxime Coquelin <[email protected]>

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examples/vhost: demonstrate the new generic APIs

Now DPDK vhost lib has been generic enough, that it can be used to
implement any vhost-user drivers.

For example, this patch implements a very simpl

examples/vhost: demonstrate the new generic APIs

Now DPDK vhost lib has been generic enough, that it can be used to
implement any vhost-user drivers.

For example, this patch implements a very simple vhost-user net driver,
mainly for demonstrating how to use those generic vhost APIs.

And when the --builtin-net-driver option is used, the example virtio-net
driver code will be invoked, instead of the one provided from the vhost
library.

Signed-off-by: Yuanhan Liu <[email protected]>

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