[PATCH v2 2/6] 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(a)redhat.com&gt; Reviewed-by: Ján Tomko <jtomko(a)redhat.com&gt; --- 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 2ff6da9236..b690d54baa 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