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Re: [Qemu-devel] [PULL 23/29] numa: use possible_cpus for not mapped CPU
From: |
Igor Mammedov |
Subject: |
Re: [Qemu-devel] [PULL 23/29] numa: use possible_cpus for not mapped CPUs check |
Date: |
Wed, 17 May 2017 11:09:00 +0200 |
On Wed, 17 May 2017 10:07:18 +0200
Markus Armbruster <address@hidden> wrote:
> Eduardo Habkost <address@hidden> writes:
>
> > From: Igor Mammedov <address@hidden>
> >
> > and remove corresponding part in numa.c that uses
> > node_cpu bitmaps.
> >
> > Signed-off-by: Igor Mammedov <address@hidden>
> > Reviewed-by: David Gibson <address@hidden>
> > Reviewed-by: Andrew Jones <address@hidden>
> > Message-Id: <address@hidden>
> > Signed-off-by: Eduardo Habkost <address@hidden>
> > ---
> > hw/core/machine.c | 58
> > +++++++++++++++++++++++++++++++++++++++++++++++++++++++
> > numa.c | 10 ----------
> > 2 files changed, 58 insertions(+), 10 deletions(-)
> >
> > diff --git a/hw/core/machine.c b/hw/core/machine.c
> > index 64e2a4ff2c..fd6a436064 100644
> > --- a/hw/core/machine.c
> > +++ b/hw/core/machine.c
> > @@ -20,6 +20,7 @@
> > #include "sysemu/numa.h"
> > #include "qemu/error-report.h"
> > #include "qemu/cutils.h"
> > +#include "sysemu/numa.h"
> >
> > static char *machine_get_accel(Object *obj, Error **errp)
> > {
> > @@ -678,9 +679,66 @@ bool machine_mem_merge(MachineState *machine)
> > return machine->mem_merge;
> > }
> >
> > +static char *cpu_slot_to_string(const CPUArchId *cpu)
> > +{
> > + GString *s = g_string_new(NULL);
> > + if (cpu->props.has_socket_id) {
> > + g_string_append_printf(s, "socket-id: %"PRId64,
> > cpu->props.socket_id);
> > + }
> > + if (cpu->props.has_core_id) {
> > + if (s->len) {
> > + g_string_append_printf(s, ", ");
> > + }
> > + g_string_append_printf(s, "core-id: %"PRId64, cpu->props.core_id);
> > + }
> > + if (cpu->props.has_thread_id) {
> > + if (s->len) {
> > + g_string_append_printf(s, ", ");
> > + }
> > + g_string_append_printf(s, "thread-id: %"PRId64,
> > cpu->props.thread_id);
> > + }
> > + return g_string_free(s, false);
> > +}
> > +
> > +static void machine_numa_validate(MachineState *machine)
> > +{
> > + int i;
> > + GString *s = g_string_new(NULL);
> > + MachineClass *mc = MACHINE_GET_CLASS(machine);
> > + const CPUArchIdList *possible_cpus =
> > mc->possible_cpu_arch_ids(machine);
> > +
> > + assert(nb_numa_nodes);
> > + for (i = 0; i < possible_cpus->len; i++) {
> > + const CPUArchId *cpu_slot = &possible_cpus->cpus[i];
> > +
> > + /* at this point numa mappings are initilized by CLI options
> > + * or with default mappings so it's sufficient to list
> > + * all not yet mapped CPUs here */
> > + /* TODO: make it hard error in future */
> > + if (!cpu_slot->props.has_node_id) {
> > + char *cpu_str = cpu_slot_to_string(cpu_slot);
> > + g_string_append_printf(s, "%sCPU %d [%s]", s->len ? ", " : "",
> > i,
> > + cpu_str);
> > + g_free(cpu_str);
> > + }
> > + }
> > + if (s->len) {
> > + error_report("warning: CPU(s) not present in any NUMA nodes: %s",
> > + s->str);
> > + error_report("warning: All CPU(s) up to maxcpus should be
> > described "
> > + "in NUMA config, ability to start up with partial
> > NUMA "
> > + "mappings is obsoleted and will be removed in
> > future");
>
> I can see this gripes in output of make check. Shouldn't you suppress
> them on qtest_enabled(), like we do elsewhere?
I'll look into it and add a patch into followup series to suppress it.
>
> > + }
> > + g_string_free(s, true);
> > +}
>
> [...]
- [Qemu-devel] [PULL 15/29] numa: do default mapping based on possible_cpus instead of node_cpu bitmaps, (continued)
- [Qemu-devel] [PULL 15/29] numa: do default mapping based on possible_cpus instead of node_cpu bitmaps, Eduardo Habkost, 2017/05/11
- [Qemu-devel] [PULL 16/29] pc: get numa node mapping from possible_cpus instead of numa_get_node_for_cpu(), Eduardo Habkost, 2017/05/11
- [Qemu-devel] [PULL 17/29] spapr: get numa node mapping from possible_cpus instead of numa_get_node_for_cpu(), Eduardo Habkost, 2017/05/11
- [Qemu-devel] [PULL 18/29] virt-arm: get numa node mapping from possible_cpus instead of numa_get_node_for_cpu(), Eduardo Habkost, 2017/05/11
- [Qemu-devel] [PULL 19/29] QMP: include CpuInstanceProperties into query_cpus output output, Eduardo Habkost, 2017/05/11
- [Qemu-devel] [PULL 20/29] tests: numa: add case for QMP command query-cpus, Eduardo Habkost, 2017/05/11
- [Qemu-devel] [PULL 21/29] numa: remove no longer need numa_post_machine_init(), Eduardo Habkost, 2017/05/11
- [Qemu-devel] [PULL 22/29] machine: call machine init from wrapper, Eduardo Habkost, 2017/05/11
- [Qemu-devel] [PULL 23/29] numa: use possible_cpus for not mapped CPUs check, Eduardo Habkost, 2017/05/11
- [Qemu-devel] [PULL 24/29] numa: remove node_cpu bitmaps as they are no longer used, Eduardo Habkost, 2017/05/11
- [Qemu-devel] [PULL 25/29] numa: add '-numa cpu, ...' option for property based node mapping, Eduardo Habkost, 2017/05/11
- [Qemu-devel] [PULL 26/29] tests: check -numa node, cpu=props_list usecase, Eduardo Habkost, 2017/05/11
- [Qemu-devel] [PULL 27/29] migration/i386: Remove old non-softfloat 64bit FP support, Eduardo Habkost, 2017/05/11
- [Qemu-devel] [PULL 28/29] vmstatification: i386 FPReg, Eduardo Habkost, 2017/05/11
- [Qemu-devel] [PULL 29/29] migration/i386: Remove support for pre-0.12 formats, Eduardo Habkost, 2017/05/11
- Re: [Qemu-devel] [PULL 00/29] x86 and machine queue, 2017-05-11, Stefan Hajnoczi, 2017/05/15