Re: [Qemu-devel] [PATCH 06/10] ich9: Document why cannot_instantiate_with_device_add_yet

2013-10-23 Thread Peter Maydell
On 17 October 2013 14:54,  arm...@redhat.com wrote:
 From: Markus Armbruster arm...@redhat.com

 An ICH9 southbridge contains several PCI devices, some of them with
 multiple functions.  We model each function as a separate qdev.  Two
 of them need some special wiring set up in pc_q35_init() to work: the
 LPC controller at 00:1f.0, and the SMBus controller at 00:1f.3.

 Signed-off-by: Markus Armbruster arm...@redhat.com

Reviewed-by: Peter Maydell peter.mayd...@linaro.org

-- PMM



[Qemu-devel] [PATCH 06/10] ich9: Document why cannot_instantiate_with_device_add_yet

2013-10-17 Thread armbru
From: Markus Armbruster arm...@redhat.com

An ICH9 southbridge contains several PCI devices, some of them with
multiple functions.  We model each function as a separate qdev.  Two
of them need some special wiring set up in pc_q35_init() to work: the
LPC controller at 00:1f.0, and the SMBus controller at 00:1f.3.

Signed-off-by: Markus Armbruster arm...@redhat.com
---
 hw/i2c/smbus_ich9.c | 6 +-
 hw/isa/lpc_ich9.c   | 7 +--
 2 files changed, 10 insertions(+), 3 deletions(-)

diff --git a/hw/i2c/smbus_ich9.c b/hw/i2c/smbus_ich9.c
index c1ffa34..8d47eaf 100644
--- a/hw/i2c/smbus_ich9.c
+++ b/hw/i2c/smbus_ich9.c
@@ -97,11 +97,15 @@ static void ich9_smb_class_init(ObjectClass *klass, void 
*data)
 k-device_id = PCI_DEVICE_ID_INTEL_ICH9_6;
 k-revision = ICH9_A2_SMB_REVISION;
 k-class_id = PCI_CLASS_SERIAL_SMBUS;
-dc-cannot_instantiate_with_device_add_yet = true; /* FIXME explain why */
 dc-vmsd = vmstate_ich9_smbus;
 dc-desc = ICH9 SMBUS Bridge;
 k-init = ich9_smbus_initfn;
 k-config_write = ich9_smbus_write_config;
+/*
+ * Reason: part of ICH9 southbridge, needs to be wired up by
+ * pc_q35_init()
+ */
+dc-cannot_instantiate_with_device_add_yet = true;
 }
 
 i2c_bus *ich9_smb_init(PCIBus *bus, int devfn, uint32_t smb_io_base)
diff --git a/hw/isa/lpc_ich9.c b/hw/isa/lpc_ich9.c
index ad841b5..d00d698 100644
--- a/hw/isa/lpc_ich9.c
+++ b/hw/isa/lpc_ich9.c
@@ -604,14 +604,17 @@ static void ich9_lpc_class_init(ObjectClass *klass, void 
*data)
 dc-reset = ich9_lpc_reset;
 k-init = ich9_lpc_initfn;
 dc-vmsd = vmstate_ich9_lpc;
-dc-cannot_instantiate_with_device_add_yet = true; /* FIXME explain why */
 k-config_write = ich9_lpc_config_write;
 dc-desc = ICH9 LPC bridge;
 k-vendor_id = PCI_VENDOR_ID_INTEL;
 k-device_id = PCI_DEVICE_ID_INTEL_ICH9_8;
 k-revision = ICH9_A2_LPC_REVISION;
 k-class_id = PCI_CLASS_BRIDGE_ISA;
-
+/*
+ * Reason: part of ICH9 southbridge, needs to be wired up by
+ * pc_q35_init()
+ */
+dc-cannot_instantiate_with_device_add_yet = true;
 }
 
 static const TypeInfo ich9_lpc_info = {
-- 
1.8.1.4