[PATCH 4/4] qemu_command: Generate prealloc-threads property

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Let's generate prealloc-threads property onto the cmd line if
domain configuration requests so.

Signed-off-by: Michal Privoznik <mprivozn@xxxxxxxxxx>
---
 src/qemu/qemu_command.c                                     | 5 ++++-
 tests/qemuxml2argvdata/memfd-memory-numa.x86_64-latest.args | 4 ++--
 2 files changed, 6 insertions(+), 3 deletions(-)

diff --git a/src/qemu/qemu_command.c b/src/qemu/qemu_command.c
index c836799888..8246ab515a 100644
--- a/src/qemu/qemu_command.c
+++ b/src/qemu/qemu_command.c
@@ -3806,7 +3806,10 @@ qemuBuildMemoryBackendProps(virJSONValue **backendProps,
             return -1;
     } else {
         if (!priv->memPrealloc &&
-            virJSONValueObjectAdd(&props, "B:prealloc", prealloc, NULL) < 0)
+            virJSONValueObjectAdd(&props,
+                                  "B:prealloc", prealloc,
+                                  "p:prealloc-threads", def->mem.allocation_threads,
+                                  NULL) < 0)
             return -1;
     }
 
diff --git a/tests/qemuxml2argvdata/memfd-memory-numa.x86_64-latest.args b/tests/qemuxml2argvdata/memfd-memory-numa.x86_64-latest.args
index 6f5a983d3a..68bbd73551 100644
--- a/tests/qemuxml2argvdata/memfd-memory-numa.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/memfd-memory-numa.x86_64-latest.args
@@ -16,7 +16,7 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-instance-00000092/.config \
 -m size=14680064k,slots=16,maxmem=1099511627776k \
 -overcommit mem-lock=off \
 -smp 8,sockets=1,dies=1,cores=8,threads=1 \
--object '{"qom-type":"memory-backend-memfd","id":"ram-node0","hugetlb":true,"hugetlbsize":2097152,"share":true,"prealloc":true,"size":15032385536,"host-nodes":[3],"policy":"preferred"}' \
+-object '{"qom-type":"memory-backend-memfd","id":"ram-node0","hugetlb":true,"hugetlbsize":2097152,"share":true,"prealloc":true,"prealloc-threads":8,"size":15032385536,"host-nodes":[3],"policy":"preferred"}' \
 -numa node,nodeid=0,cpus=0-7,memdev=ram-node0 \
 -uuid 126f2720-6f8e-45ab-a886-ec9277079a67 \
 -display none \
@@ -29,7 +29,7 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-instance-00000092/.config \
 -no-acpi \
 -boot strict=on \
 -device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
--object '{"qom-type":"memory-backend-file","id":"memnvdimm0","mem-path":"/tmp/nvdimm","share":true,"prealloc":true,"size":536870912,"host-nodes":[3],"policy":"preferred"}' \
+-object '{"qom-type":"memory-backend-file","id":"memnvdimm0","mem-path":"/tmp/nvdimm","share":true,"prealloc":true,"prealloc-threads":8,"size":536870912,"host-nodes":[3],"policy":"preferred"}' \
 -device '{"driver":"nvdimm","node":0,"memdev":"memnvdimm0","id":"nvdimm0","slot":0}' \
 -audiodev '{"id":"audio1","driver":"none"}' \
 -device '{"driver":"virtio-balloon-pci","id":"balloon0","bus":"pci.0","addr":"0x3"}' \
-- 
2.34.1




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