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[PATCH REBASE 2/7] qemuBuildMemoryBackendProps: Respect //memoryBacking/allocation/@mode=immediate



If user specifies immediate memory allocation in the domain XML,
they want QEMU to fully allocate its memory. And if the memory
was allocated using plain '-m' then we would honour it. But, if a
memory backend is used, then we don't set the prealloc attribute
of the backend.

Signed-off-by: Michal Privoznik <mprivozn redhat com>
---
 src/qemu/qemu_command.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/qemu/qemu_command.c b/src/qemu/qemu_command.c
index 75fd17311f..19c86fb00d 100644
--- a/src/qemu/qemu_command.c
+++ b/src/qemu/qemu_command.c
@@ -3027,6 +3027,9 @@ qemuBuildMemoryBackendProps(virJSONValuePtr *backendProps,
     if (discard == VIR_TRISTATE_BOOL_ABSENT)
         discard = def->mem.discard;
 
+    if (def->mem.allocation == VIR_DOMAIN_MEMORY_ALLOCATION_IMMEDIATE)
+        prealloc = true;
+
     if (virDomainNumatuneGetMode(def->numa, mem->targetNode, &mode) < 0 &&
         virDomainNumatuneGetMode(def->numa, -1, &mode) < 0)
         mode = VIR_DOMAIN_NUMATUNE_MEM_STRICT;
-- 
2.26.2


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