[libvirt] [PATCH] qemu: Implement a stub cpuArchDriver.baseline() handler for aarch64
Openstack Nova calls virConnectBaselineCPU() during initialization
of the instance to get a full list of CPU features.
This patch adds a stub to aarch64-specific code to handle
this request (no actual work is done). That's enough to have
this stub with limited functionality because qemu/kvm backend
supports only 'host-passthrough' cpu mode on aarch64.
Signed-off-by: Oleg Strikov <oleg.strikov(a)canonical.com>
---
src/cpu/cpu_aarch64.c | 25 ++++++++++++++++++++++++-
1 file changed, 24 insertions(+), 1 deletion(-)
diff --git a/src/cpu/cpu_aarch64.c b/src/cpu/cpu_aarch64.c
index f674bff..3c3e749 100644
--- a/src/cpu/cpu_aarch64.c
+++ b/src/cpu/cpu_aarch64.c
@@ -85,6 +85,29 @@ AArch64GuestData(virCPUDefPtr host ATTRIBUTE_UNUSED,
return VIR_CPU_COMPARE_IDENTICAL;
}
+static virCPUDefPtr
+AArch64Baseline(virCPUDefPtr *cpus,
+ unsigned int ncpus ATTRIBUTE_UNUSED,
+ const char **models ATTRIBUTE_UNUSED,
+ unsigned int nmodels ATTRIBUTE_UNUSED,
+ unsigned int flags)
+{
+ virCPUDefPtr cpu = NULL;
+
+ virCheckFlags(VIR_CONNECT_BASELINE_CPU_EXPAND_FEATURES, NULL);
+
+ if (VIR_ALLOC(cpu) < 0 ||
+ VIR_STRDUP(cpu->model, cpus[0]->model) < 0) {
+ virCPUDefFree(cpu);
+ return NULL;
+ }
+
+ cpu->type = VIR_CPU_TYPE_GUEST;
+ cpu->match = VIR_CPU_MATCH_EXACT;
+
+ return cpu;
+}
+
struct cpuArchDriver cpuDriverAARCH64 = {
.name = "aarch64",
.arch = archs,
@@ -95,7 +118,7 @@ struct cpuArchDriver cpuDriverAARCH64 = {
.free = AArch64DataFree,
.nodeData = AArch64NodeData,
.guestData = AArch64GuestData,
- .baseline = NULL,
+ .baseline = AArch64Baseline,
.update = AArch64Update,
.hasFeature = NULL,
};
--
1.7.9.5