From: Alistair Francis <alistair23@gmail.com>
To: Damien Hedde <damien.hedde@greensocs.com>
Cc: "Peter Maydell" <peter.maydell@linaro.org>,
"David Hildenbrand" <david@redhat.com>,
"qemu-devel@nongnu.org Developers" <qemu-devel@nongnu.org>,
"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>,
"Michael S. Tsirkin" <mst@redhat.com>,
"Markus Armbruster" <armbru@redhat.com>,
"Anthony Perard" <anthony.perard@citrix.com>,
"Marc-André Lureau" <marcandre.lureau@redhat.com>,
"Igor Mammedov" <imammedo@redhat.com>,
"Eduardo Habkost" <ehabkost@redhat.com>,
"Dr. David Alan Gilbert" <dgilbert@redhat.com>,
"Paul Durrant" <paul@xen.org>,
"Eric Auger" <eric.auger@redhat.com>,
"open list:X86" <xen-devel@lists.xenproject.org>,
"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>,
"Paolo Bonzini" <pbonzini@redhat.com>
Subject: Re: [RFC PATCH v2 09/16] hw/core/machine: Remove the dynamic sysbus devices type check
Date: Wed, 13 Oct 2021 09:07:37 +1000 [thread overview]
Message-ID: <CAKmqyKNeUz7BTxhJTKnhTnEnONRJLJ8V-CaCZ3E5OA2G8eeP4A@mail.gmail.com> (raw)
In-Reply-To: <20210922161405.140018-10-damien.hedde@greensocs.com>
On Thu, Sep 23, 2021 at 2:23 AM Damien Hedde <damien.hedde@greensocs.com> wrote:
>
> Now that we check sysbus device types during device creation, we
> can remove the check done in the machine init done notifier.
> This was the only thing done by this notifier, so we remove the
> whole sysbus_notifier structure of the MachineState.
>
> Note: This notifier was checking all /peripheral and /peripheral-anon
> sysbus devices. Now we only check those added by -device cli option or
> device_add qmp command when handling the command/option. So if there
> are some devices added in one of these containers manually (eg in
> machine C code), these will not be checked anymore.
> This use case does not seem to appear apart from
> hw/xen/xen-legacy-backend.c (it uses qdev_set_id() and in this case,
> not for a sysbus device, so it's ok).
>
> Signed-off-by: Damien Hedde <damien.hedde@greensocs.com>
Acked-by: Alistair Francis <alistair.francis@wdc.com>
Alistair
> ---
> include/hw/boards.h | 1 -
> hw/core/machine.c | 27 ---------------------------
> 2 files changed, 28 deletions(-)
>
> diff --git a/include/hw/boards.h b/include/hw/boards.h
> index 934443c1cd..ccbc40355a 100644
> --- a/include/hw/boards.h
> +++ b/include/hw/boards.h
> @@ -311,7 +311,6 @@ typedef struct CpuTopology {
> struct MachineState {
> /*< private >*/
> Object parent_obj;
> - Notifier sysbus_notifier;
>
> /*< public >*/
>
> diff --git a/hw/core/machine.c b/hw/core/machine.c
> index 1a18912dc8..521438e90a 100644
> --- a/hw/core/machine.c
> +++ b/hw/core/machine.c
> @@ -571,18 +571,6 @@ bool machine_class_is_dynamic_sysbus_dev_allowed(MachineClass *mc,
> return allowed;
> }
>
> -static void validate_sysbus_device(SysBusDevice *sbdev, void *opaque)
> -{
> - MachineState *machine = opaque;
> - MachineClass *mc = MACHINE_GET_CLASS(machine);
> -
> - if (!device_is_dynamic_sysbus(mc, DEVICE(sbdev))) {
> - error_report("Option '-device %s' cannot be handled by this machine",
> - object_class_get_name(object_get_class(OBJECT(sbdev))));
> - exit(1);
> - }
> -}
> -
> static char *machine_get_memdev(Object *obj, Error **errp)
> {
> MachineState *ms = MACHINE(obj);
> @@ -598,17 +586,6 @@ static void machine_set_memdev(Object *obj, const char *value, Error **errp)
> ms->ram_memdev_id = g_strdup(value);
> }
>
> -static void machine_init_notify(Notifier *notifier, void *data)
> -{
> - MachineState *machine = MACHINE(qdev_get_machine());
> -
> - /*
> - * Loop through all dynamically created sysbus devices and check if they are
> - * all allowed. If a device is not allowed, error out.
> - */
> - foreach_dynamic_sysbus_device(validate_sysbus_device, machine);
> -}
> -
> HotpluggableCPUList *machine_query_hotpluggable_cpus(MachineState *machine)
> {
> int i;
> @@ -1030,10 +1007,6 @@ static void machine_initfn(Object *obj)
> "Table (HMAT)");
> }
>
> - /* Register notifier when init is done for sysbus sanity checks */
> - ms->sysbus_notifier.notify = machine_init_notify;
> - qemu_add_machine_init_done_notifier(&ms->sysbus_notifier);
> -
> /* default to mc->default_cpus */
> ms->smp.cpus = mc->default_cpus;
> ms->smp.max_cpus = mc->default_cpus;
> --
> 2.33.0
>
>
next prev parent reply other threads:[~2021-10-12 23:09 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
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 [this message]
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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