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[Qemu-devel] [PATCH 2/3] pci: split shpc_cleanup and shpc_free
From: |
Paolo Bonzini |
Subject: |
[Qemu-devel] [PATCH 2/3] pci: split shpc_cleanup and shpc_free |
Date: |
Fri, 13 Feb 2015 15:57:10 +0100 |
object_unparent should not be called until the parent device is going to be
destroyed. Only remove the capability and do memory_region_del_subregion
at unrealize time. Freeing the data structures is left in shpc_free, to
be called from the instance_finalize callback.
shpc_free follows the same coding style that Alex suggested for VFIO
(i.e. since a test for NULL is requested, clear the field at end).
Signed-off-by: Paolo Bonzini <address@hidden>
---
hw/pci-bridge/pci_bridge_dev.c | 14 ++++++++++----
hw/pci/shpc.c | 11 ++++++++++-
include/hw/pci/shpc.h | 1 +
3 files changed, 21 insertions(+), 5 deletions(-)
diff --git a/hw/pci-bridge/pci_bridge_dev.c b/hw/pci-bridge/pci_bridge_dev.c
index 252ea5e..36f73e1 100644
--- a/hw/pci-bridge/pci_bridge_dev.c
+++ b/hw/pci-bridge/pci_bridge_dev.c
@@ -97,6 +97,11 @@ static void pci_bridge_dev_exitfn(PCIDevice *dev)
pci_bridge_exitfn(dev);
}
+static void pci_bridge_dev_instance_finalize(Object *obj)
+{
+ shpc_free(PCI_DEVICE(obj));
+}
+
static void pci_bridge_dev_write_config(PCIDevice *d,
uint32_t address, uint32_t val, int
len)
{
@@ -154,10 +159,11 @@ static void pci_bridge_dev_class_init(ObjectClass *klass,
void *data)
}
static const TypeInfo pci_bridge_dev_info = {
- .name = TYPE_PCI_BRIDGE_DEV,
- .parent = TYPE_PCI_BRIDGE,
- .instance_size = sizeof(PCIBridgeDev),
- .class_init = pci_bridge_dev_class_init,
+ .name = TYPE_PCI_BRIDGE_DEV,
+ .parent = TYPE_PCI_BRIDGE,
+ .instance_size = sizeof(PCIBridgeDev),
+ .class_init = pci_bridge_dev_class_init,
+ .instance_finalize = pci_bridge_dev_instance_finalize,
.interfaces = (InterfaceInfo[]) {
{ TYPE_HOTPLUG_HANDLER },
{ }
diff --git a/hw/pci/shpc.c b/hw/pci/shpc.c
index 27c496e..5fd7f4b 100644
--- a/hw/pci/shpc.c
+++ b/hw/pci/shpc.c
@@ -663,13 +663,22 @@ void shpc_cleanup(PCIDevice *d, MemoryRegion *bar)
SHPCDevice *shpc = d->shpc;
d->cap_present &= ~QEMU_PCI_CAP_SHPC;
memory_region_del_subregion(bar, &shpc->mmio);
- object_unparent(OBJECT(&shpc->mmio));
/* TODO: cleanup config space changes? */
+}
+
+void shpc_free(PCIDevice *d)
+{
+ SHPCDevice *shpc = d->shpc;
+ if (!shpc) {
+ return;
+ }
+ object_unparent(OBJECT(&shpc->mmio));
g_free(shpc->config);
g_free(shpc->cmask);
g_free(shpc->wmask);
g_free(shpc->w1cmask);
g_free(shpc);
+ d->shpc = NULL;
}
void shpc_cap_write_config(PCIDevice *d, uint32_t addr, uint32_t val, int l)
diff --git a/include/hw/pci/shpc.h b/include/hw/pci/shpc.h
index 025bc5b..9bbea39 100644
--- a/include/hw/pci/shpc.h
+++ b/include/hw/pci/shpc.h
@@ -41,6 +41,7 @@ void shpc_reset(PCIDevice *d);
int shpc_bar_size(PCIDevice *dev);
int shpc_init(PCIDevice *dev, PCIBus *sec_bus, MemoryRegion *bar, unsigned
off);
void shpc_cleanup(PCIDevice *dev, MemoryRegion *bar);
+void shpc_free(PCIDevice *dev);
void shpc_cap_write_config(PCIDevice *d, uint32_t addr, uint32_t val, int len);
--
1.8.3.1