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pci_bridge: simplify memory regions some more

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replace alloc/free with struct members.
todo: smash with initial implementation after
testing.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
This commit is contained in:
Michael S. Tsirkin 2011-09-06 20:58:22 +03:00
parent 7df32ca08a
commit 336411cafd
2 changed files with 24 additions and 13 deletions
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15
hw/pci_internals.h
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@ -41,6 +41,21 @@ struct PCIBridge {
/* private member */
PCIBus sec_bus;
/*
* Memory regions for the bridge's address spaces. These regions are not
* directly added to system_memory/system_io or its descendants.
* Bridge's secondary bus points to these, so that devices
* under the bridge see these regions as its address spaces.
* The regions are as large as the entire address space -
* they don't take into account any windows.
*/
MemoryRegion address_space_mem;
MemoryRegion address_space_io;
/*
* Aliases for each of the address space windows that the bridge
* can forward. Mapped into the bridge's parent's address space,
* as subregions.
*/
MemoryRegion alias_pref_mem;
MemoryRegion alias_mem;
MemoryRegion alias_io;