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Raphael Norwitz 27598393a2 Lift max memory slots limit imposed by vhost-user 
Historically, sending all memory regions to vhost-user backends in a
single message imposed a limitation on the number of times memory
could be hot-added to a VM with a vhost-user device. Now that backends
which support the VHOST_USER_PROTOCOL_F_CONFIGURE_SLOTS send memory
regions individually, we no longer need to impose this limitation on
devices which support this feature.

With this change, VMs with a vhost-user device which supports the
VHOST_USER_PROTOCOL_F_CONFIGURE_MEM_SLOTS can support a configurable
number of memory slots, up to the maximum allowed by the target
platform.

Existing backends which do not support
VHOST_USER_PROTOCOL_F_CONFIGURE_MEM_SLOTS are unaffected.

Signed-off-by: Raphael Norwitz <raphael.norwitz@nutanix.com>
Signed-off-by: Peter Turschmid <peter.turschm@nutanix.com>
Suggested-by: Mike Cui <cui@nutanix.com>
Message-Id: <1588533678-23450-6-git-send-email-raphael.norwitz@nutanix.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
 		2020-06-12 10:17:06 -04:00
..
config docs: Grammar and spelling fixes 2018-07-13 10:16:04 +01:00
devel accel/tcg: Add endian-specific cpu_{ld, st}* operations 2020-05-11 11:22:06 +01:00
interop Lift max memory slots limit imposed by vhost-user 2020-06-12 10:17:06 -04:00
specs docs: APEI GHES generation and CPER record description 2020-05-14 15:03:09 +01:00
sphinx kernel-doc: Use c:struct for Sphinx 3.0 and later 2020-04-14 17:15:33 +01:00
spin docs: create config/, devel/ and spin/ subdirectories 2017-06-07 18:22:03 +02:00
system target-arm queue: 2020-06-05 23:31:31 +01:00
tools qemu-img: Add convert --bitmaps option 2020-05-28 13:16:30 -05:00
user docs: Be consistent about capitalization of 'Arm' 2020-03-12 11:20:20 +00:00
COLO-FT.txt colo: Update Documentation for continuous replication 2020-03-03 18:04:47 +08:00
amd-memory-encryption.txt doc: fix typos for documents in tree 2019-03-06 10:40:21 +01:00
barrier.txt ui: add an embedded Barrier client 2019-09-17 13:43:22 +02:00
block-replication.txt colo: Update Documentation for continuous replication 2020-03-03 18:04:47 +08:00
bootindex.txt docs qemu-doc: Avoid ide-drive, it's deprecated 2017-06-04 18:42:55 +03:00
can.txt docs: Be consistent about capitalization of 'Arm' 2020-03-12 11:20:20 +00:00
ccid.txt libcacard: improve documentation 2014-06-10 07:44:01 +02:00
colo-proxy.txt doc: fix typos for documents in tree 2019-03-06 10:40:21 +01:00
conf.py docs: Require Sphinx 1.6 or better 2020-04-14 17:19:38 +01:00
cpu-hotplug.rst docs/cpu-hotplug.rst: Fix rST markup issues 2019-03-07 14:26:44 +00:00
defs.rst.inc docs/system: convert Texinfo documentation to rST 2020-03-06 10:05:12 +00:00
generic-loader.txt docs/generic-loader: mention U-Boot and Intel HEX executable formats 2018-08-20 11:24:31 +01:00
hyperv.txt i386/kvm: add NoNonArchitecturalCoreSharing Hyper-V enlightenment 2019-10-22 09:38:42 +02:00
igd-assign.txt vfio/pci: Add IGD documentation 2016-05-26 11:12:05 -06:00
image-fuzzer.txt docs: List all image elements currently supported by the fuzzer 2014-09-22 11:39:35 +01:00
index.html.in docs/index.rst, docs/index.html.in: Reorder manuals 2020-03-12 11:14:06 +00:00
index.rst docs/index.rst, docs/index.html.in: Reorder manuals 2020-03-12 11:14:06 +00:00
memory-hotplug.txt docs: Grammar and spelling fixes 2018-07-13 10:16:04 +01:00
microvm.rst docs/microvm.rst: add instructions for shutting down the guest 2019-11-19 10:01:34 +01:00
multi-thread-compression.txt Replace '-enable-kvm' with '-accel kvm' in docs and help texts 2018-06-28 19:05:32 +02:00
multiseat.txt tests/docker/test-mingw and docs: Remove --with-sdlabi=2.0 2019-02-04 15:25:21 +00:00
nvdimm.txt docs/nvdimm: add example on persistent backend setup 2019-09-16 06:27:35 -04:00
pci_expander_bridge.txt pxb: cleanup 2016-03-11 16:59:12 +02:00
pcie.txt docs: pcie: Spell out machine type needs for PCIe features 2018-03-01 16:25:37 +02:00
pcie_pci_bridge.txt pci: removed the is_express field since a uniform interface was inserted 2018-02-08 21:06:41 +02:00
pr-manager.rst scsi: add multipath support to qemu-pr-helper 2017-09-22 21:07:27 +02:00
pvrdma.txt hw/pvrdma: Remove max-sge command-line param 2019-01-19 10:31:24 +02:00
qcow2-cache.txt qcow2: Default to 4KB for the qcow2 cache entry size 2019-03-08 12:26:45 +01:00
qdev-device-use.txt qemu-options: Remove deprecated "-virtioconsole" option 2019-02-05 16:50:19 +01:00
qemu-option-trace.rst.inc docs/qemu-option-trace.rst.inc: Remove redundant comment 2020-03-12 11:14:06 +00:00
qemu_logo.pdf docs: add qemu logo to pdf 2017-01-16 10:11:43 +01:00
qemupciserial.inf docs: Grammar and spelling fixes 2018-07-13 10:16:04 +01:00
rdma.txt doc: fix typos for documents in tree 2019-03-06 10:40:21 +01:00
replay.txt docs: Be consistent about capitalization of 'Arm' 2020-03-12 11:20:20 +00:00
spice-port-fqdn.txt docs: add spice-port-fqdn.txt 2012-12-17 14:01:41 +01:00
throttle.txt docs: Fix description of the leaky bucket algorithm in throttle.txt 2016-09-13 18:12:34 +03:00
usb-storage.txt usb: Fix typo in documentation 2017-01-24 23:26:52 +03:00
usb2.txt docs/usb2.txt: ehci has six ports 2018-08-21 10:22:03 +02:00
virtio-balloon-stats.txt Remove the deprecated -balloon option 2018-08-31 09:52:13 +02:00
virtio-net-failover.rst docs: fix rst syntax errors in unbuilt docs 2019-12-19 16:20:21 +00:00
virtio-pmem.rst docs: fix rst syntax errors in unbuilt docs 2019-12-19 16:20:21 +00:00
xbzrle.txt xbzrle: update xbzrle doc 2020-03-25 12:31:38 +00:00
xen-save-devices-state.txt Fix up dangling references to qmp-commands.* in comment and doc 2018-03-02 13:48:26 -06:00