From: Alistair Francis <alistair23@gmail.com>
To: Damien Hedde <damien.hedde@greensocs.com>
Cc: "qemu-devel@nongnu.org Developers" <qemu-devel@nongnu.org>,
"Peter Maydell" <peter.maydell@linaro.org>,
"Michael S. Tsirkin" <mst@redhat.com>,
"David Hildenbrand" <david@redhat.com>,
"Peter Xu" <peterx@redhat.com>,
mirela.grujic@greensocs.com,
"Alistair Francis" <Alistair.Francis@wdc.com>,
"Gerd Hoffmann" <kraxel@redhat.com>,
"Ani Sinha" <ani@anisinha.ca>, "Eric Blake" <eblake@redhat.com>,
"Stefano Stabellini" <sstabellini@kernel.org>,
"open list:X86" <xen-devel@lists.xenproject.org>,
"Paul Durrant" <paul@xen.org>,
"Markus Armbruster" <armbru@redhat.com>,
"Anthony Perard" <anthony.perard@citrix.com>,
"Marc-André Lureau" <marcandre.lureau@redhat.com>,
"Eduardo Habkost" <ehabkost@redhat.com>,
"Dr. David Alan Gilbert" <dgilbert@redhat.com>,
"Eric Auger" <eric.auger@redhat.com>,
"Paolo Bonzini" <pbonzini@redhat.com>,
"open list:RISC-V" <qemu-riscv@nongnu.org>,
"Daniel P. Berrangé" <berrange@redhat.com>,
"Mark Burton" <mark.burton@greensocs.com>,
"Edgar Iglesias" <edgari@xilinx.com>,
"Igor Mammedov" <imammedo@redhat.com>
Subject: Re: [RFC PATCH v2 02/16] qapi: Implement query-machine-phase QMP command
Date: Wed, 13 Oct 2021 08:08:43 +1000 [thread overview]
Message-ID: <CAKmqyKN5JadUSb=-a5jn3Uz1WKj8Sb23buC0Nooa4mY4g7O=ew@mail.gmail.com> (raw)
In-Reply-To: <20210922161405.140018-3-damien.hedde@greensocs.com>
On Thu, Sep 23, 2021 at 2:20 AM Damien Hedde <damien.hedde@greensocs.com> wrote:
>
> From: Mirela Grujic <mirela.grujic@greensocs.com>
>
> The command returns current machine initialization phase.
> From now on, the MachineInitPhase enum is generated from the
> QAPI schema.
>
> Signed-off-by: Mirela Grujic <mirela.grujic@greensocs.com>
Acked-by: Alistair Francis <alistair.francis@wdc.com>
Alistair
> ---
> qapi/machine.json | 56 ++++++++++++++++++++++++++++++++++++++
> include/hw/qdev-core.h | 30 ++------------------
> hw/core/machine-qmp-cmds.c | 9 ++++++
> hw/core/qdev.c | 5 ++++
> 4 files changed, 72 insertions(+), 28 deletions(-)
>
> diff --git a/qapi/machine.json b/qapi/machine.json
> index 157712f006..969d37fb03 100644
> --- a/qapi/machine.json
> +++ b/qapi/machine.json
> @@ -1312,3 +1312,59 @@
> '*cores': 'int',
> '*threads': 'int',
> '*maxcpus': 'int' } }
> +
> +##
> +# @MachineInitPhase:
> +#
> +# Enumeration of machine initialization phases.
> +#
> +# @no-machine: machine does not exist
> +#
> +# @machine-created: machine is created, but its accelerator is not
> +#
> +# @accel-created: accelerator is created, but the machine properties have not
> +# been validated and machine initialization is not done yet
> +#
> +# @initialized: machine is initialized, thus creating any embedded devices and
> +# validating machine properties. Devices created at this time are
> +# considered to be cold-plugged.
> +#
> +# @ready: QEMU is ready to start CPUs and devices created at this time are
> +# considered to be hot-plugged. The monitor is not restricted to
> +# "preconfig" commands.
> +#
> +# Since: 6.2
> +##
> +{ 'enum': 'MachineInitPhase',
> + 'data': [ 'no-machine', 'machine-created', 'accel-created', 'initialized',
> + 'ready' ] }
> +
> +##
> +# @MachineInitPhaseStatus:
> +#
> +# Information about machine initialization phase
> +#
> +# @phase: the machine initialization phase
> +#
> +# Since: 6.2
> +##
> +{ 'struct': 'MachineInitPhaseStatus',
> + 'data': { 'phase': 'MachineInitPhase' } }
> +
> +##
> +# @query-machine-phase:
> +#
> +# Return machine initialization phase
> +#
> +# Since: 6.2
> +#
> +# Returns: MachineInitPhaseStatus
> +#
> +# Example:
> +#
> +# -> { "execute": "query-machine-phase" }
> +# <- { "return": { "phase": "initialized" } }
> +#
> +##
> +{ 'command': 'query-machine-phase', 'returns': 'MachineInitPhaseStatus',
> + 'allow-preconfig': true }
> diff --git a/include/hw/qdev-core.h b/include/hw/qdev-core.h
> index 859fd913bb..800eda8f54 100644
> --- a/include/hw/qdev-core.h
> +++ b/include/hw/qdev-core.h
> @@ -1,6 +1,7 @@
> #ifndef QDEV_CORE_H
> #define QDEV_CORE_H
>
> +#include "qapi/qapi-types-machine.h"
> #include "qemu/queue.h"
> #include "qemu/bitmap.h"
> #include "qemu/rcu.h"
> @@ -839,35 +840,8 @@ void device_listener_unregister(DeviceListener *listener);
> */
> bool qdev_should_hide_device(QemuOpts *opts);
>
> -typedef enum MachineInitPhase {
> - /* current_machine is NULL. */
> - MACHINE_INIT_PHASE_NO_MACHINE,
> -
> - /* current_machine is not NULL, but current_machine->accel is NULL. */
> - MACHINE_INIT_PHASE_MACHINE_CREATED,
> -
> - /*
> - * current_machine->accel is not NULL, but the machine properties have
> - * not been validated and machine_class->init has not yet been called.
> - */
> - MACHINE_INIT_PHASE_ACCEL_CREATED,
> -
> - /*
> - * machine_class->init has been called, thus creating any embedded
> - * devices and validating machine properties. Devices created at
> - * this time are considered to be cold-plugged.
> - */
> - MACHINE_INIT_PHASE_INITIALIZED,
> -
> - /*
> - * QEMU is ready to start CPUs and devices created at this time
> - * are considered to be hot-plugged. The monitor is not restricted
> - * to "preconfig" commands.
> - */
> - MACHINE_INIT_PHASE_READY,
> -} MachineInitPhase;
> -
> extern bool phase_check(MachineInitPhase phase);
> extern void phase_advance(MachineInitPhase phase);
> +extern MachineInitPhase phase_get(void);
>
> #endif
> diff --git a/hw/core/machine-qmp-cmds.c b/hw/core/machine-qmp-cmds.c
> index 52168a3771..d3b9a04855 100644
> --- a/hw/core/machine-qmp-cmds.c
> +++ b/hw/core/machine-qmp-cmds.c
> @@ -204,3 +204,12 @@ MemdevList *qmp_query_memdev(Error **errp)
> object_child_foreach(obj, query_memdev, &list);
> return list;
> }
> +
> +MachineInitPhaseStatus *qmp_query_machine_phase(Error **errp)
> +{
> + MachineInitPhaseStatus *status = g_malloc0(sizeof(*status));
> +
> + status->phase = phase_get();
> +
> + return status;
> +}
> diff --git a/hw/core/qdev.c b/hw/core/qdev.c
> index c5fc704f55..d83f1c029a 100644
> --- a/hw/core/qdev.c
> +++ b/hw/core/qdev.c
> @@ -1150,6 +1150,11 @@ void phase_advance(MachineInitPhase phase)
> machine_phase = phase;
> }
>
> +MachineInitPhase phase_get(void)
> +{
> + return machine_phase;
> +}
> +
> static const TypeInfo device_type_info = {
> .name = TYPE_DEVICE,
> .parent = TYPE_OBJECT,
> --
> 2.33.0
>
>
next prev parent reply other threads:[~2021-10-12 22:09 UTC|newest]
Thread overview: 41+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-09-22 16:13 [RFC PATCH v2 00/16] Initial support for machine creation via QMP Damien Hedde
2021-09-22 16:13 ` [RFC PATCH v2 01/16] rename MachineInitPhase enum constants for QAPI compatibility Damien Hedde
2021-09-22 16:13 ` [RFC PATCH v2 02/16] qapi: Implement query-machine-phase QMP command Damien Hedde
2021-09-22 17:37 ` Philippe Mathieu-Daudé
2021-09-23 12:43 ` Damien Hedde
2021-09-23 13:46 ` Ani Sinha
2021-10-12 22:08 ` Alistair Francis [this message]
2021-09-22 16:13 ` [RFC PATCH v2 03/16] qapi: Implement x-machine-init " Damien Hedde
2021-10-12 22:19 ` Alistair Francis
2021-09-22 16:13 ` [RFC PATCH v2 04/16] softmmu/qdev-monitor: add error handling in qdev_set_id Damien Hedde
2021-10-13 7:10 ` Alistair Francis
2021-10-13 14:30 ` Damien Hedde
2021-09-22 16:13 ` [RFC PATCH v2 05/16] qdev-monitor: prevent conflicts between qmp/device_add and cli/-device Damien Hedde
2021-09-22 16:13 ` [RFC PATCH v2 06/16] qapi: Allow device_add to execute in machine initialized phase Damien Hedde
2021-10-12 22:25 ` Alistair Francis
2021-09-22 16:13 ` [RFC PATCH v2 07/16] hw/core/machine: add machine_class_is_dynamic_sysbus_dev_allowed Damien Hedde
2021-09-23 10:51 ` Ani Sinha
2021-09-23 13:07 ` Damien Hedde
2021-09-22 16:13 ` [RFC PATCH v2 08/16] qdev-monitor: Check sysbus device type before creating it Damien Hedde
2021-10-12 22:42 ` Alistair Francis
2021-09-22 16:13 ` [RFC PATCH v2 09/16] hw/core/machine: Remove the dynamic sysbus devices type check Damien Hedde
2021-10-12 23:07 ` Alistair Francis
2021-09-22 16:13 ` [RFC PATCH v2 10/16] qdev-monitor: allow adding any sysbus device before machine is ready Damien Hedde
2021-09-23 11:04 ` Ani Sinha
2021-09-23 11:55 ` Ani Sinha
2021-09-23 14:04 ` Damien Hedde
2021-09-22 16:14 ` [RFC PATCH v2 11/16] softmmu/memory: add memory_region_try_add_subregion function Damien Hedde
2021-09-22 17:42 ` Philippe Mathieu-Daudé
2021-09-22 17:49 ` David Hildenbrand
2021-10-13 7:12 ` Alistair Francis
2021-09-22 16:14 ` [RFC PATCH v2 12/16] add x-sysbus-mmio-map qmp command Damien Hedde
2021-10-13 7:16 ` Alistair Francis
2021-09-22 16:14 ` [RFC PATCH v2 13/16] hw/mem/system-memory: add a memory sysbus device Damien Hedde
2021-09-22 16:14 ` [RFC PATCH v2 14/16] docs/system: add doc about the initialized machine phase and an example Damien Hedde
2021-09-22 16:14 ` [RFC PATCH v2 15/16] hw/char/ibex_uart: set user_creatable Damien Hedde
2021-09-22 16:14 ` [RFC PATCH v2 16/16] hw/intc/ibex_plic: " Damien Hedde
2021-09-22 17:50 ` [RFC PATCH v2 00/16] Initial support for machine creation via QMP Philippe Mathieu-Daudé
2021-09-23 11:08 ` Damien Hedde
2021-10-04 15:56 ` Damien Hedde
2021-10-12 22:16 ` Alistair Francis
2021-10-13 5:56 ` Mark Burton
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