[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
[Qemu-devel] [PATCH 07/10] piix3 piix4: Clean up use of cannot_instantia
From: |
armbru |
Subject: |
[Qemu-devel] [PATCH 07/10] piix3 piix4: Clean up use of cannot_instantiate_with_device_add_yet |
Date: |
Thu, 17 Oct 2013 15:54:58 +0200 |
From: Markus Armbruster <address@hidden>
A PIIX3/PIIX4 southbridge has multiple functions. We model each
function as a separate qdev. Two of them need some special wiring set
up in pc_init1() or mips_malta_init() to work: the ISA bridge at 01.0,
and the SMBus controller at 01.3.
The IDE controller at 01.1 (piix3-ide, piix3-ide-xen, piix4-ide) has
always had cannot_instantiate_with_device_add_yet set, but there is no
obvious reason why device_add could not work for them. Drop it.
Signed-off-by: Markus Armbruster <address@hidden>
---
hw/acpi/piix4.c | 7 ++++++-
hw/ide/piix.c | 3 ---
hw/isa/piix4.c | 6 +++++-
hw/pci-host/piix.c | 12 ++++++++++--
4 files changed, 21 insertions(+), 7 deletions(-)
diff --git a/hw/acpi/piix4.c b/hw/acpi/piix4.c
index c29a703..c0ad010 100644
--- a/hw/acpi/piix4.c
+++ b/hw/acpi/piix4.c
@@ -508,9 +508,14 @@ static void piix4_pm_class_init(ObjectClass *klass, void
*data)
k->revision = 0x03;
k->class_id = PCI_CLASS_BRIDGE_OTHER;
dc->desc = "PM";
- dc->cannot_instantiate_with_device_add_yet = true; /* FIXME explain why */
+ dc->cannot_instantiate_with_device_add_yet = true;
dc->vmsd = &vmstate_acpi;
dc->props = piix4_pm_properties;
+ /*
+ * Reason: part of PIIX4 southbridge, needs to be wired up,
+ * e.g. by mips_malta_init()
+ */
+ dc->cannot_instantiate_with_device_add_yet = true;
}
static const TypeInfo piix4_pm_info = {
diff --git a/hw/ide/piix.c b/hw/ide/piix.c
index 27b08e1..9b5960b 100644
--- a/hw/ide/piix.c
+++ b/hw/ide/piix.c
@@ -248,7 +248,6 @@ static void piix3_ide_class_init(ObjectClass *klass, void
*data)
k->device_id = PCI_DEVICE_ID_INTEL_82371SB_1;
k->class_id = PCI_CLASS_STORAGE_IDE;
set_bit(DEVICE_CATEGORY_STORAGE, dc->categories);
- dc->cannot_instantiate_with_device_add_yet = true; /* FIXME explain why */
}
static const TypeInfo piix3_ide_info = {
@@ -267,7 +266,6 @@ static void piix3_ide_xen_class_init(ObjectClass *klass,
void *data)
k->device_id = PCI_DEVICE_ID_INTEL_82371SB_1;
k->class_id = PCI_CLASS_STORAGE_IDE;
set_bit(DEVICE_CATEGORY_STORAGE, dc->categories);
- dc->cannot_instantiate_with_device_add_yet = true; /* FIXME explain why */
dc->unplug = pci_piix3_xen_ide_unplug;
}
@@ -289,7 +287,6 @@ static void piix4_ide_class_init(ObjectClass *klass, void
*data)
k->device_id = PCI_DEVICE_ID_INTEL_82371AB;
k->class_id = PCI_CLASS_STORAGE_IDE;
set_bit(DEVICE_CATEGORY_STORAGE, dc->categories);
- dc->cannot_instantiate_with_device_add_yet = true; /* FIXME explain why */
}
static const TypeInfo piix4_ide_info = {
diff --git a/hw/isa/piix4.c b/hw/isa/piix4.c
index d9dac61..def6fe3 100644
--- a/hw/isa/piix4.c
+++ b/hw/isa/piix4.c
@@ -113,8 +113,12 @@ static void piix4_class_init(ObjectClass *klass, void
*data)
k->device_id = PCI_DEVICE_ID_INTEL_82371AB_0;
k->class_id = PCI_CLASS_BRIDGE_ISA;
dc->desc = "ISA bridge";
- dc->cannot_instantiate_with_device_add_yet = true; /* FIXME explain why */
dc->vmsd = &vmstate_piix4;
+ /*
+ * Reason: part of PIIX4 southbridge, needs to be wired up,
+ * e.g. by mips_malta_init()
+ */
+ dc->cannot_instantiate_with_device_add_yet = true;
}
static const TypeInfo piix4_info = {
diff --git a/hw/pci-host/piix.c b/hw/pci-host/piix.c
index 8089fd6..1526fd4 100644
--- a/hw/pci-host/piix.c
+++ b/hw/pci-host/piix.c
@@ -644,7 +644,6 @@ static void piix3_class_init(ObjectClass *klass, void *data)
dc->desc = "ISA bridge";
dc->vmsd = &vmstate_piix3;
- 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;
@@ -652,6 +651,11 @@ static void piix3_class_init(ObjectClass *klass, void
*data)
/* 82371SB PIIX3 PCI-to-ISA bridge (Step A1) */
k->device_id = PCI_DEVICE_ID_INTEL_82371SB_0;
k->class_id = PCI_CLASS_BRIDGE_ISA;
+ /*
+ * Reason: part of PIIX3 southbridge, needs to be wired up by
+ * pc_piix.c's pc_init1()
+ */
+ dc->cannot_instantiate_with_device_add_yet = true;
}
static const TypeInfo piix3_info = {
@@ -668,7 +672,6 @@ static void piix3_xen_class_init(ObjectClass *klass, void
*data)
dc->desc = "ISA bridge";
dc->vmsd = &vmstate_piix3;
- 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;
@@ -676,6 +679,11 @@ static void piix3_xen_class_init(ObjectClass *klass, void
*data)
/* 82371SB PIIX3 PCI-to-ISA bridge (Step A1) */
k->device_id = PCI_DEVICE_ID_INTEL_82371SB_0;
k->class_id = PCI_CLASS_BRIDGE_ISA;
+ /*
+ * Reason: part of PIIX3 southbridge, needs to be wired up by
+ * pc_piix.c's pc_init1()
+ */
+ dc->cannot_instantiate_with_device_add_yet = true;
};
static const TypeInfo piix3_xen_info = {
--
1.8.1.4
- [Qemu-devel] [PATCH 00/10] Clean up and fix no_user, armbru, 2013/10/17
- [Qemu-devel] [PATCH 04/10] apic: Document why cannot_instantiate_with_device_add_yet, armbru, 2013/10/17
- [Qemu-devel] [PATCH 02/10] sysbus: Set cannot_instantiate_with_device_add_yet, armbru, 2013/10/17
- [Qemu-devel] [PATCH 01/10] qdev: Replace no_user by cannot_instantiate_with_device_add_yet, armbru, 2013/10/17
- [Qemu-devel] [PATCH 03/10] cpu: Document why cannot_instantiate_with_device_add_yet, armbru, 2013/10/17
- [Qemu-devel] [PATCH 08/10] vt82c686: Clean up use of cannot_instantiate_with_device_add_yet, armbru, 2013/10/17
- [Qemu-devel] [PATCH 05/10] pci-host: Consistently set cannot_instantiate_with_device_add_yet, armbru, 2013/10/17
- [Qemu-devel] [PATCH 09/10] isa: Clean up use of cannot_instantiate_with_device_add_yet, armbru, 2013/10/17
- [Qemu-devel] [PATCH 06/10] ich9: Document why cannot_instantiate_with_device_add_yet, armbru, 2013/10/17
- [Qemu-devel] [PATCH 10/10] qdev: Do not let the user try to device_add when it cannot work, armbru, 2013/10/17
- [Qemu-devel] [PATCH 07/10] piix3 piix4: Clean up use of cannot_instantiate_with_device_add_yet,
armbru <=