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authorMarkus Armbruster <armbru@redhat.com>2013-11-28 17:26:54 +0100
committerAndreas Färber <afaerber@suse.de>2013-12-23 00:27:22 +0100
commitefec3dd631d94160288392721a5f9c39e50fb2bc (patch)
treefa3cfb6e1c63cf5834cefc4659fa5a43c61d46e1 /hw/pci-host
parentf976b09ea249cccc3fd41c98aaf6512908db0bae (diff)
qdev: Replace no_user by cannot_instantiate_with_device_add_yet
In an ideal world, machines can be built by wiring devices together with configuration, not code. Unfortunately, that's not the world we live in right now. We still have quite a few devices that need to be wired up by code. If you try to device_add such a device, it'll fail in sometimes mysterious ways. If you're lucky, you get an unmysterious immediate crash. To protect users from such badness, DeviceClass member no_user used to make device models unavailable with -device / device_add, but that regressed in commit 18b6dad. The device model is still omitted from help, but is available anyway. Attempts to fix the regression have been rejected with the argument that the purpose of no_user isn't clear, and it's prone to misuse. This commit clarifies no_user's purpose. Anthony suggested to rename it cannot_instantiate_with_device_add_yet_due_to_internal_bugs, which I shorten somewhat to keep checkpatch happy. While there, make it bool. Every use of cannot_instantiate_with_device_add_yet gets a FIXME comment asking for rationale. The next few commits will clean them all up, either by providing a rationale, or by getting rid of the use. With that done, the regression fix is hopefully acceptable. Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Marcel Apfelbaum <marcel.a@redhat.com> Signed-off-by: Andreas Färber <afaerber@suse.de>
Diffstat (limited to 'hw/pci-host')
-rw-r--r--hw/pci-host/bonito.c4
-rw-r--r--hw/pci-host/grackle.c4
-rw-r--r--hw/pci-host/piix.c8
-rw-r--r--hw/pci-host/prep.c4
4 files changed, 10 insertions, 10 deletions
diff --git a/hw/pci-host/bonito.c b/hw/pci-host/bonito.c
index 5086d42c13..2e08e9d801 100644
--- a/hw/pci-host/bonito.c
+++ b/hw/pci-host/bonito.c
@@ -806,7 +806,7 @@ static void bonito_class_init(ObjectClass *klass, void *data)
k->revision = 0x01;
k->class_id = PCI_CLASS_BRIDGE_HOST;
dc->desc = "Host bridge";
- dc->no_user = 1;
+ dc->cannot_instantiate_with_device_add_yet = true; /* FIXME explain why */
dc->vmsd = &vmstate_bonito;
}
@@ -823,7 +823,7 @@ static void bonito_pcihost_class_init(ObjectClass *klass, void *data)
SysBusDeviceClass *k = SYS_BUS_DEVICE_CLASS(klass);
k->init = bonito_pcihost_initfn;
- dc->no_user = 1;
+ dc->cannot_instantiate_with_device_add_yet = true; /* FIXME explain why */
}
static const TypeInfo bonito_pcihost_info = {
diff --git a/hw/pci-host/grackle.c b/hw/pci-host/grackle.c
index 75b60d36ac..ba6017fc52 100644
--- a/hw/pci-host/grackle.c
+++ b/hw/pci-host/grackle.c
@@ -130,7 +130,7 @@ static void grackle_pci_class_init(ObjectClass *klass, void *data)
k->device_id = PCI_DEVICE_ID_MOTOROLA_MPC106;
k->revision = 0x00;
k->class_id = PCI_CLASS_BRIDGE_HOST;
- dc->no_user = 1;
+ dc->cannot_instantiate_with_device_add_yet = true; /* FIXME explain why */
}
static const TypeInfo grackle_pci_info = {
@@ -146,7 +146,7 @@ static void pci_grackle_class_init(ObjectClass *klass, void *data)
DeviceClass *dc = DEVICE_CLASS(klass);
k->init = pci_grackle_init_device;
- dc->no_user = 1;
+ dc->cannot_instantiate_with_device_add_yet = true; /* FIXME explain why */
}
static const TypeInfo grackle_pci_host_info = {
diff --git a/hw/pci-host/piix.c b/hw/pci-host/piix.c
index 63be7f6cee..333358e9e5 100644
--- a/hw/pci-host/piix.c
+++ b/hw/pci-host/piix.c
@@ -635,7 +635,7 @@ static void piix3_class_init(ObjectClass *klass, void *data)
dc->desc = "ISA bridge";
dc->vmsd = &vmstate_piix3;
- dc->no_user = 1,
+ dc->cannot_instantiate_with_device_add_yet = true; /* FIXME explain why */
k->no_hotplug = 1;
k->init = piix3_initfn;
k->config_write = piix3_write_config;
@@ -659,7 +659,7 @@ static void piix3_xen_class_init(ObjectClass *klass, void *data)
dc->desc = "ISA bridge";
dc->vmsd = &vmstate_piix3;
- dc->no_user = 1;
+ dc->cannot_instantiate_with_device_add_yet = true; /* FIXME explain why */
k->no_hotplug = 1;
k->init = piix3_initfn;
k->config_write = piix3_write_config_xen;
@@ -689,7 +689,7 @@ static void i440fx_class_init(ObjectClass *klass, void *data)
k->revision = 0x02;
k->class_id = PCI_CLASS_BRIDGE_HOST;
dc->desc = "Host bridge";
- dc->no_user = 1;
+ dc->cannot_instantiate_with_device_add_yet = true; /* FIXME explain why */
dc->vmsd = &vmstate_i440fx;
}
@@ -727,7 +727,7 @@ static void i440fx_pcihost_class_init(ObjectClass *klass, void *data)
hc->root_bus_path = i440fx_pcihost_root_bus_path;
dc->realize = i440fx_pcihost_realize;
dc->fw_name = "pci";
- dc->no_user = 1;
+ dc->cannot_instantiate_with_device_add_yet = true; /* FIXME explain why */
dc->props = i440fx_props;
}
diff --git a/hw/pci-host/prep.c b/hw/pci-host/prep.c
index 0e71fdbfb1..58b8c5eaa3 100644
--- a/hw/pci-host/prep.c
+++ b/hw/pci-host/prep.c
@@ -198,7 +198,7 @@ static void raven_class_init(ObjectClass *klass, void *data)
k->class_id = PCI_CLASS_BRIDGE_HOST;
dc->desc = "PReP Host Bridge - Motorola Raven";
dc->vmsd = &vmstate_raven;
- dc->no_user = 1;
+ dc->cannot_instantiate_with_device_add_yet = true; /* FIXME explain why */
}
static const TypeInfo raven_info = {
@@ -215,7 +215,7 @@ static void raven_pcihost_class_init(ObjectClass *klass, void *data)
set_bit(DEVICE_CATEGORY_BRIDGE, dc->categories);
dc->realize = raven_pcihost_realizefn;
dc->fw_name = "pci";
- dc->no_user = 1;
+ dc->cannot_instantiate_with_device_add_yet = true; /* FIXME explain why */
}
static const TypeInfo raven_pcihost_info = {