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authorDavid Hildenbrand <dahi@linux.vnet.ibm.com>2016-09-05 10:52:40 +0200
committerCornelia Huck <cornelia.huck@de.ibm.com>2016-09-06 17:06:51 +0200
commit0031e0d68339e7a919cf927119807ed882da6e4f (patch)
treeb3dd77052c49af28c6f66044a4fe13cb32ffb495 /stubs
parente09484efbc9db8c4554293cdc8aed7a8db378d97 (diff)
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qmp: add QMP interface "query-cpu-model-comparison"
Let's provide a standardized interface to compare two CPU models. "query-cpu-model-compare" takes two models and returns how they compare in a specific configuration. The result will give guarantees about runnability. E.g. if a CPU model A is a subset of CPU model B, model A is guaranteed to run in configurations where model B runs, but not the other way around (might or might not run). Usually, CPU features or CPU generations are used to calculate the result. If a model is not guaranteed to run in a certain environment (e.g. incompatible), a compatible one can be created by "baselining" both models (follow up patch). Acked-by: Cornelia Huck <cornelia.huck@de.ibm.com> Reviewed-by: Eduardo Habkost <ehabkost@redhat.com> Signed-off-by: David Hildenbrand <dahi@linux.vnet.ibm.com> Message-Id: <20160905085244.99980-27-dahi@linux.vnet.ibm.com> Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Diffstat (limited to 'stubs')
-rw-r--r--stubs/Makefile.objs1
-rw-r--r--stubs/arch-query-cpu-model-comparison.c12
2 files changed, 13 insertions, 0 deletions
diff --git a/stubs/Makefile.objs b/stubs/Makefile.objs
index 4929842..da768f0 100644
--- a/stubs/Makefile.objs
+++ b/stubs/Makefile.objs
@@ -1,5 +1,6 @@
stub-obj-y += arch-query-cpu-def.o
stub-obj-y += arch-query-cpu-model-expansion.o
+stub-obj-y += arch-query-cpu-model-comparison.o
stub-obj-y += bdrv-next-monitor-owned.o
stub-obj-y += blk-commit-all.o
stub-obj-y += blockdev-close-all-bdrv-states.o
diff --git a/stubs/arch-query-cpu-model-comparison.c b/stubs/arch-query-cpu-model-comparison.c
new file mode 100644
index 0000000..d5486ae
--- /dev/null
+++ b/stubs/arch-query-cpu-model-comparison.c
@@ -0,0 +1,12 @@
+#include "qemu/osdep.h"
+#include "qemu-common.h"
+#include "sysemu/arch_init.h"
+#include "qapi/qmp/qerror.h"
+
+CpuModelCompareInfo *arch_query_cpu_model_comparison(CpuModelInfo *modela,
+ CpuModelInfo *modelb,
+ Error **errp)
+{
+ error_setg(errp, QERR_UNSUPPORTED);
+ return NULL;
+}