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qemu: Implement a stub cpuArchDriver.baseline() handler for aarch64

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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@canonical.com>
This commit is contained in:
Oleg Strikov 2014-02-11 19:51:41 +04:00 committed by Cole Robinson
parent 2fbfedeb0d
commit 69fba97f63
1 changed files with 24 additions and 1 deletions
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25
src/cpu/cpu_aarch64.c
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@ -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,
};