[PATCH 8/9] qemu_capabilities: Introduce virQEMUCapsGetCPUBlockers
A function for accessing a list of features blocking CPU model
usability.
Signed-off-by: Jiri Denemark <jdenemar(a)redhat.com>
---
src/qemu/qemu_capabilities.c | 38 ++++++++++++++++++++++++++++++++++++
src/qemu/qemu_capabilities.h | 4 ++++
2 files changed, 42 insertions(+)
diff --git a/src/qemu/qemu_capabilities.c b/src/qemu/qemu_capabilities.c
index e1e28e5cd1..b5fa738bd8 100644
--- a/src/qemu/qemu_capabilities.c
+++ b/src/qemu/qemu_capabilities.c
@@ -2507,6 +2507,44 @@ virQEMUCapsIsCPUUsable(virQEMUCaps *qemuCaps,
}
+/**
+ * virQEMUCapsGetCPUBlockers:
+ * @qemuCaps: QEMU capabilities
+ * @type: virtualization type
+ * @cpu: CPU model
+ * @blockers: where to store the list of features
+ *
+ * Get a list of features that prevent @cpu from being usable. The pointer to
+ * the list will be stored in @blockers and the caller must not free it. The
+ * pointer is valid as long as there is an active reference to @qemuCaps.
+ *
+ * Returns 0 on success, -1 when @cpu is not found in @qemuCaps.
+ */
+int
+virQEMUCapsGetCPUBlockers(virQEMUCaps *qemuCaps,
+ virDomainVirtType type,
+ const char *cpu,
+ char ***blockers)
+{
+ qemuMonitorCPUDefs *defs;
+ size_t i;
+
+ defs = virQEMUCapsGetAccel(qemuCaps, type)->cpuModels;
+
+ if (!defs)
+ return -1;
+
+ for (i = 0; i < defs->ncpus; i++) {
+ if (STREQ(defs->cpus[i].name, cpu)) {
+ *blockers = defs->cpus[i].blockers;
+ return 0;
+ }
+ }
+
+ return -1;
+}
+
+
bool
virQEMUCapsIsMachineDeprecated(virQEMUCaps *qemuCaps,
virDomainVirtType type,
diff --git a/src/qemu/qemu_capabilities.h b/src/qemu/qemu_capabilities.h
index 284b07b64e..54c7e30903 100644
--- a/src/qemu/qemu_capabilities.h
+++ b/src/qemu/qemu_capabilities.h
@@ -795,6 +795,10 @@ bool virQEMUCapsIsCPUDeprecated(virQEMUCaps *qemuCaps,
bool virQEMUCapsIsCPUUsable(virQEMUCaps *qemuCaps,
virDomainVirtType type,
virCPUDef *cpu);
+int virQEMUCapsGetCPUBlockers(virQEMUCaps *qemuCaps,
+ virDomainVirtType type,
+ const char *cpu,
+ char ***blockers);
bool virQEMUCapsIsMachineDeprecated(virQEMUCaps *qemuCaps,
virDomainVirtType type,
const char *machine);
--
2.47.0