From: Maxime Coquelin <maxime.coquelin@redhat.com>
To: dev@dpdk.org, tiwei.bie@intel.com, zhihong.wang@intel.com,
jfreimann@redhat.com, nicknickolaev@gmail.com,
i.maximets@samsung.com, bruce.richardson@intel.com,
alejandro.lucero@netronome.com
Cc: dgilbert@redhat.com, stable@dpdk.org,
Maxime Coquelin <maxime.coquelin@redhat.com>
Subject: [dpdk-dev] [PATCH v6 10/19] vhost: add config flag for postcopy feature
Date: Thu, 11 Oct 2018 11:24:23 +0200 [thread overview]
Message-ID: <20181011092432.22275-11-maxime.coquelin@redhat.com> (raw)
In-Reply-To: <20181011092432.22275-1-maxime.coquelin@redhat.com>
Postcopy live-migration features relies on userfaultfd,
which was only introduced in kernel v4.3.
This patch introduces a new define to allow building vhost
library on kernels not supporting userfaultfd.
With legacy build system, user has to explicitly set
CONFIG_RTE_LIBRTE_VHOST_POSTCOPY to 'y'.
With Meson build system, RTE_LIBRTE_VHOST_POSTCOPY gets
automatically defined if userfaultfd kernel header is
present.
Suggested-by: Ilya Maximets <i.maximets@samsung.com>
Signed-off-by: Maxime Coquelin <maxime.coquelin@redhat.com>
Acked-by: Ilya Maximets <i.maximets@samsung.com>
---
config/common_linuxapp | 1 +
lib/librte_vhost/meson.build | 2 ++
2 files changed, 3 insertions(+)
diff --git a/config/common_linuxapp b/config/common_linuxapp
index 485e1467d..424100a75 100644
--- a/config/common_linuxapp
+++ b/config/common_linuxapp
@@ -14,6 +14,7 @@ CONFIG_RTE_LIBRTE_KNI=y
CONFIG_RTE_LIBRTE_PMD_KNI=y
CONFIG_RTE_LIBRTE_VHOST=y
CONFIG_RTE_LIBRTE_VHOST_NUMA=y
+CONFIG_RTE_LIBRTE_VHOST_POSTCOPY=n
CONFIG_RTE_LIBRTE_PMD_VHOST=y
CONFIG_RTE_LIBRTE_IFC_PMD=y
CONFIG_RTE_LIBRTE_PMD_AF_PACKET=y
diff --git a/lib/librte_vhost/meson.build b/lib/librte_vhost/meson.build
index 9d25b4d88..e33e6fc16 100644
--- a/lib/librte_vhost/meson.build
+++ b/lib/librte_vhost/meson.build
@@ -7,6 +7,8 @@ endif
if has_libnuma == 1
dpdk_conf.set10('RTE_LIBRTE_VHOST_NUMA', true)
endif
+dpdk_conf.set('RTE_LIBRTE_VHOST_POSTCOPY',
+ cc.has_header('linux/userfaultfd.h'))
version = 4
allow_experimental_apis = true
cflags += '-fno-strict-aliasing'
--
2.17.1
next prev parent reply other threads:[~2018-10-11 9:25 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-10-11 9:24 [dpdk-dev] [PATCH v6 00/19] vhost: add postcopy live-migration support Maxime Coquelin
2018-10-11 9:24 ` [dpdk-dev] [PATCH v6 01/19] vhost: fix messages results handling Maxime Coquelin
2018-10-11 16:18 ` Ilya Maximets
2018-10-12 9:03 ` Maxime Coquelin
2018-10-12 9:55 ` Maxime Coquelin
2018-10-11 9:24 ` [dpdk-dev] [PATCH v6 02/19] vhost: fix return code of messages requiring replies Maxime Coquelin
2018-10-11 9:24 ` [dpdk-dev] [PATCH v6 03/19] vhost: clarify reply-ack in case a reply was already sent Maxime Coquelin
2018-10-11 9:24 ` [dpdk-dev] [PATCH v6 04/19] vhost: fix payload size of reply Maxime Coquelin
2018-10-11 9:24 ` [dpdk-dev] [PATCH v6 05/19] vhost: fix error handling when mem table gets updated Maxime Coquelin
2018-10-11 9:24 ` [dpdk-dev] [PATCH v6 06/19] vhost: define postcopy protocol flag Maxime Coquelin
2018-10-11 9:24 ` [dpdk-dev] [PATCH v6 07/19] vhost: add number of fds to vhost-user messages and use it Maxime Coquelin
2018-10-11 15:59 ` Ilya Maximets
2018-10-12 8:43 ` Maxime Coquelin
2018-10-12 8:45 ` Maxime Coquelin
2018-10-12 8:57 ` Maxime Coquelin
2018-10-12 9:53 ` Ilya Maximets
2018-10-12 9:52 ` Maxime Coquelin
2018-10-12 10:04 ` Ilya Maximets
2018-10-11 9:24 ` [dpdk-dev] [PATCH v6 08/19] vhost: pass socket fd to message handling callbacks Maxime Coquelin
2018-10-11 9:24 ` [dpdk-dev] [PATCH v6 09/19] vhost: enable fds passing when sending vhost-user messages Maxime Coquelin
2018-10-11 9:24 ` Maxime Coquelin [this message]
2018-10-11 9:24 ` [dpdk-dev] [PATCH v6 11/19] vhost: introduce postcopy's advise message Maxime Coquelin
2018-10-11 9:24 ` [dpdk-dev] [PATCH v6 12/19] vhost: add support for postcopy's listen message Maxime Coquelin
2018-10-11 9:24 ` [dpdk-dev] [PATCH v6 13/19] vhost: register new regions with userfaultfd Maxime Coquelin
2018-10-11 9:24 ` [dpdk-dev] [PATCH v6 14/19] vhost: avoid useless VhostUserMemory copy Maxime Coquelin
2018-10-11 9:24 ` [dpdk-dev] [PATCH v6 15/19] vhost: send userfault range addresses back to qemu Maxime Coquelin
2018-10-11 9:24 ` [dpdk-dev] [PATCH v6 16/19] vhost: add support to postcopy's end request Maxime Coquelin
2018-10-11 9:24 ` [dpdk-dev] [PATCH v6 17/19] vhost: restrict postcopy live-migration enablement Maxime Coquelin
2018-10-11 9:24 ` [dpdk-dev] [PATCH v6 18/19] net/vhost: add parameter to enable postcopy support Maxime Coquelin
2018-10-11 9:24 ` [dpdk-dev] [PATCH v6 19/19] vhost: enable postcopy protocol feature Maxime Coquelin
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