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Maxime Coquelin af53db4867 vhost: flush IOTLB cache on new mem table handling 
IOTLB entries contain the host virtual address of the guest
pages. When receiving a new VHOST_USER_SET_MEM_TABLE request,
the previous regions get unmapped, so the IOTLB entries, if any,
will be invalid. It does cause the vhost-user process to
segfault.

This patch introduces a new function to flush the IOTLB cache,
and call it as soon as the backend handles a VHOST_USER_SET_MEM
request.

Fixes: 69c90e98f4 ("vhost: enable IOMMU support")
Cc: stable@dpdk.org

Signed-off-by: Maxime Coquelin <maxime.coquelin@redhat.com>
Reviewed-by: Tiwei Bie <tiwei.bie@intel.com>
Reviewed-by: Jens Freimann <jfreimann@redhat.com>
2018-08-05 01:47:47 +02:00
..
librte_acl build: replace license text with SPDX tag 2018-01-30 21:58:59 +01:00
librte_bbdev remove useless constructor headers 2018-07-12 00:00:35 +02:00
librte_bitratestats bitrate: add sanity check on parameters 2018-07-26 20:07:57 +02:00
librte_bpf bpf: fix 32-bit build support with meson 2018-07-12 12:24:25 +02:00
librte_cfgfile build: replace license text with SPDX tag 2018-01-30 21:58:59 +01:00
librte_cmdline cmdline: remove useless intermediate buffer 2018-06-27 18:25:30 +02:00
librte_compat buildtools: change license to SPDX 2018-07-26 22:45:17 +02:00
librte_compressdev remove useless constructor headers 2018-07-12 00:00:35 +02:00
librte_cryptodev remove useless constructor headers 2018-07-12 00:00:35 +02:00
librte_distributor build: set compat lib as universal dependency 2018-01-30 21:59:00 +01:00
librte_eal eal/bsd: silence unsupported interrupts error 2018-08-01 18:25:05 +02:00
librte_efd build: replace license text with SPDX tag 2018-01-30 21:58:59 +01:00
librte_ethdev ethdev: decrease log level of ownership change 2018-08-02 09:00:18 +02:00
librte_eventdev eventdev: add callback for Rx adapter SW transfers 2018-07-06 06:54:49 +02:00
librte_flow_classify remove useless constructor headers 2018-07-12 00:00:35 +02:00
librte_gro build: replace license text with SPDX tag 2018-01-30 21:58:59 +01:00
librte_gso gso: support UDP/IPv4 fragmentation 2018-07-11 23:45:20 +02:00
librte_hash hash: add API to query the key count 2018-07-12 23:06:17 +02:00
librte_ip_frag ip_frag: fix some debug logs 2018-05-14 21:14:49 +02:00
librte_jobstats build: replace license text with SPDX tag 2018-01-30 21:58:59 +01:00
librte_kni kni: disable for 32-bit meson builds 2018-07-12 12:24:01 +02:00
librte_kvargs kvargs: fix building with meson outside source tree 2018-07-26 10:14:06 +02:00
librte_latencystats latency: free up the memzone 2018-08-01 18:25:08 +02:00
librte_lpm lpm: fix allocation of an existing object 2018-02-01 00:35:06 +01:00
librte_mbuf mbuf: remove experimental tag from pool ops 2018-07-26 23:37:08 +02:00
librte_member remove useless constructor headers 2018-07-12 00:00:35 +02:00
librte_mempool mempool: fix virtual address population 2018-05-15 16:30:14 +02:00
librte_meter lib: clear experimental version tag in linker scripts 2018-05-14 03:37:28 +02:00
librte_metrics metrics: disallow null as metric name 2018-07-26 20:30:18 +02:00
librte_net net: rename u16 to fix shadowed declaration 2018-06-27 22:55:54 +02:00
librte_pci use SPDX tag for 6WIND copyrighted files 2018-05-25 10:47:06 +02:00
librte_pdump pdump: use generic multi-process channel 2018-04-18 01:26:21 +02:00
librte_pipeline lib: clear experimental version tag in linker scripts 2018-05-14 03:37:28 +02:00
librte_port build: remove checks for non-optional libraries 2018-04-17 16:09:43 +02:00
librte_power examples/vm_power: add branch ratio policy type 2018-07-20 23:59:42 +02:00
librte_rawdev rawdev: fix missing queue count API 2018-08-01 18:25:10 +02:00
librte_reorder build: replace license text with SPDX tag 2018-01-30 21:58:59 +01:00
librte_ring ring: fix sign conversion warning 2018-07-26 16:11:51 +02:00
librte_sched lib: clear experimental version tag in linker scripts 2018-05-14 03:37:28 +02:00
librte_security security: fix crash on destroy null session 2018-07-11 00:57:51 +02:00
librte_table table: add dedicated params struct for cuckoo hash 2018-05-08 16:19:58 +02:00
librte_timer eal: make semantics of lcore role function more intuitive 2018-04-26 16:58:18 +02:00
librte_vhost vhost: flush IOTLB cache on new mem table handling 2018-08-05 01:47:47 +02:00
Makefile devargs: add function to parse device layers 2018-07-15 23:43:34 +02:00
meson.build build: remove duplicate checks for cflags 2018-07-26 10:09:20 +02:00