From: Ani Sinha <ani@anisinha.ca>
To: Damien Hedde <damien.hedde@greensocs.com>
Cc: qemu-devel@nongnu.org,
"Alistair Francis" <Alistair.Francis@wdc.com>,
"Marc-André Lureau" <marcandre.lureau@redhat.com>,
"Paolo Bonzini" <pbonzini@redhat.com>,
"Eduardo Habkost" <ehabkost@redhat.com>,
"Marcel Apfelbaum" <marcel.apfelbaum@gmail.com>,
"Daniel P. Berrangé" <berrange@redhat.com>,
"Michael S. Tsirkin" <mst@redhat.com>,
"Igor Mammedov" <imammedo@redhat.com>,
"Ani Sinha" <ani@anisinha.ca>,
"Gerd Hoffmann" <kraxel@redhat.com>,
"Eric Auger" <eric.auger@redhat.com>,
"Stefano Stabellini" <sstabellini@kernel.org>,
"Anthony Perard" <anthony.perard@citrix.com>,
"Paul Durrant" <paul@xen.org>, "Peter Xu" <peterx@redhat.com>,
"David Hildenbrand" <david@redhat.com>,
"Dr. David Alan Gilbert" <dgilbert@redhat.com>,
"Markus Armbruster" <armbru@redhat.com>,
"Eric Blake" <eblake@redhat.com>,
qemu-riscv@nongnu.org, xen-devel@lists.xenproject.org,
mark.burton@greensocs.com, mirela.grujic@greensocs.com,
edgari@xilinx.com, "Peter Maydell" <peter.maydell@linaro.org>
Subject: Re: [RFC PATCH v2 07/16] hw/core/machine: add machine_class_is_dynamic_sysbus_dev_allowed
Date: Thu, 23 Sep 2021 16:21:11 +0530 (IST) [thread overview]
Message-ID: <alpine.DEB.2.22.394.2109231559230.630@anisinha-lenovo> (raw)
In-Reply-To: <20210922161405.140018-8-damien.hedde@greensocs.com>
On Wed, 22 Sep 2021, Damien Hedde wrote:
> Right now the allowance check for adding a sysbus device using
> -device cli option (or device_add qmp command) is done well after
> the device has been created. It is done during the machine init done
> notifier: machine_init_notify() in hw/core/machine.c
>
> This new function will allow us to check if a sysbus device type is
> allowed to be dynamically created by the machine during the device
> creation time.
>
> Also make device_is_dynamic_sysbus() use the new function.
>
> Signed-off-by: Damien Hedde <damien.hedde@greensocs.com>
> ---
>
> In the context of our series, we need to be able to do the check at
> device creation time to allow doing it depending on the current
> MACHINE_INIT phase.
> ---
> include/hw/boards.h | 17 +++++++++++++++++
> hw/core/machine.c | 15 ++++++++++++---
> 2 files changed, 29 insertions(+), 3 deletions(-)
>
> diff --git a/include/hw/boards.h b/include/hw/boards.h
> index 463a5514f9..934443c1cd 100644
> --- a/include/hw/boards.h
> +++ b/include/hw/boards.h
> @@ -51,6 +51,23 @@ void machine_set_cpu_numa_node(MachineState *machine,
> */
> void machine_class_allow_dynamic_sysbus_dev(MachineClass *mc, const char *type);
>
> +/**
> + * machine_class_is_dynamic_sysbus_dev_allowed: Check if type is an allowed
> + * sysbus device type for the machine class.
> + * @mc: Machine class
> + * @type: type to check (should be a subtype of TYPE_SYS_BUS_DEVICE)
> + *
> + * Returns: true if @type is a type in the machine's list of
> + * dynamically pluggable sysbus devices; otherwise false.
> + *
> + * Check if the QOM type @type is in the list of allowed sysbus device
> + * types (see machine_class_allowed_dynamic_sysbus_dev()).
> + * Note that if @type is a subtype of a type which is in the list, it is
> + * allowed too.
> + */
> +bool machine_class_is_dynamic_sysbus_dev_allowed(MachineClass *mc,
> + const char *type);
> +
How about renaming this to device_type_is_allowed_dynamic_sysbus() ?
> /**
> * device_is_dynamic_sysbus: test whether device is a dynamic sysbus device
> * @mc: Machine class
> diff --git a/hw/core/machine.c b/hw/core/machine.c
> index 9125c9aad0..1a18912dc8 100644
> --- a/hw/core/machine.c
> +++ b/hw/core/machine.c
> @@ -545,18 +545,27 @@ void machine_class_allow_dynamic_sysbus_dev(MachineClass *mc, const char *type)
>
> bool device_is_dynamic_sysbus(MachineClass *mc, DeviceState *dev)
> {
> - bool allowed = false;
> - strList *wl;
> Object *obj = OBJECT(dev);
>
> if (!object_dynamic_cast(obj, TYPE_SYS_BUS_DEVICE)) {
> return false;
> }
>
> + return machine_class_is_dynamic_sysbus_dev_allowed(mc,
> + object_get_typename(obj));
> +}
> +
> +bool machine_class_is_dynamic_sysbus_dev_allowed(MachineClass *mc,
> + const char *type)
> +{
> + bool allowed = false;
> + strList *wl;
> + ObjectClass *klass = object_class_by_name(type);
> +
> for (wl = mc->allowed_dynamic_sysbus_devices;
> !allowed && wl;
> wl = wl->next) {
> - allowed |= !!object_dynamic_cast(obj, wl->value);
> + allowed |= !!object_class_dynamic_cast(klass, wl->value);
> }
>
> return allowed;
> --
> 2.33.0
>
>
next prev parent reply other threads:[~2021-09-23 10:52 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
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 [this message]
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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