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| author | Paolo Bonzini <pbonzini@redhat.com> | 2022-04-26 14:59:44 +0200 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2022-06-14 16:50:30 +0200 |
| commit | 467ef823d83ed7ba68cc92e1a23938726b8c4e9d (patch) | |
| tree | e63eddb9b4aa7cf667440c1d5bdb334bce070b59 /accel | |
| parent | cc01a3f4cadd91e63c4ebf9774069321afd8a4e0 (diff) | |
| download | qemu-467ef823d83ed7ba68cc92e1a23938726b8c4e9d.zip qemu-467ef823d83ed7ba68cc92e1a23938726b8c4e9d.tar.gz qemu-467ef823d83ed7ba68cc92e1a23938726b8c4e9d.tar.bz2 | |
qmp: add filtering of statistics by target vCPU
Introduce a simple filtering of statistics, that allows to retrieve
statistics for a subset of the guest vCPUs. This will be used for
example by the HMP monitor, in order to retrieve the statistics
for the currently selected CPU.
Example:
{ "execute": "query-stats",
"arguments": {
"target": "vcpu",
"vcpus": [ "/machine/unattached/device[2]",
"/machine/unattached/device[4]" ] } }
Extracted from a patch by Mark Kanda.
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'accel')
| -rw-r--r-- | accel/kvm/kvm-all.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/accel/kvm/kvm-all.c b/accel/kvm/kvm-all.c index 7cc9e33..547de84 100644 --- a/accel/kvm/kvm-all.c +++ b/accel/kvm/kvm-all.c @@ -2311,7 +2311,8 @@ bool kvm_dirty_ring_enabled(void) return kvm_state->kvm_dirty_ring_size ? true : false; } -static void query_stats_cb(StatsResultList **result, StatsTarget target, Error **errp); +static void query_stats_cb(StatsResultList **result, StatsTarget target, + strList *targets, Error **errp); static void query_stats_schemas_cb(StatsSchemaList **result, Error **errp); static int kvm_init(MachineState *ms) @@ -4038,7 +4039,8 @@ static void query_stats_schema_vcpu(CPUState *cpu, run_on_cpu_data data) close(stats_fd); } -static void query_stats_cb(StatsResultList **result, StatsTarget target, Error **errp) +static void query_stats_cb(StatsResultList **result, StatsTarget target, + strList *targets, Error **errp) { KVMState *s = kvm_state; CPUState *cpu; @@ -4062,6 +4064,9 @@ static void query_stats_cb(StatsResultList **result, StatsTarget target, Error * stats_args.result.stats = result; stats_args.errp = errp; CPU_FOREACH(cpu) { + if (!apply_str_list_filter(cpu->parent_obj.canonical_path, targets)) { + continue; + } run_on_cpu(cpu, query_stats_vcpu, RUN_ON_CPU_HOST_PTR(&stats_args)); } break; |