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| author | Greg Kurz | 2019-04-01 19:55:02 +0200 |
|---|---|---|
| committer | David Gibson | 2019-04-09 01:14:47 +0200 |
| commit | 1c685a9026349752c3627aa24b090973e35b83c3 (patch) | |
| tree | 8618f5915e18c85135e6b72507e1a300a6109e9a /include/hw/pci | |
| parent | Merge remote-tracking branch 'remotes/kevin/tags/for-upstream' into staging (diff) | |
| download | qemu-1c685a9026349752c3627aa24b090973e35b83c3.tar.gz qemu-1c685a9026349752c3627aa24b090973e35b83c3.tar.xz qemu-1c685a9026349752c3627aa24b090973e35b83c3.zip | |
pci: Allow PCI bus subtypes to support extended config space accesses
Some PHB implementations, eg. PAPR used on pseries machine, act like
a regular PCI bus rather than a PCIe bus, but allow access to the
PCIe extended config space anyway.
Introduce a new PCI bus class method to modelize this behaviour and
use it when adjusting the config space size limit during accesses.
No behaviour change for existing PCI bus types.
Signed-off-by: Greg Kurz <groug@kaod.org>
Message-Id: <155414130271.574858.4253514266378127489.stgit@bahia.lan>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Diffstat (limited to 'include/hw/pci')
| -rw-r--r-- | include/hw/pci/pci.h | 2 | ||||
| -rw-r--r-- | include/hw/pci/pci_bus.h | 1 |
2 files changed, 3 insertions, 0 deletions
diff --git a/include/hw/pci/pci.h b/include/hw/pci/pci.h index d87f5f93e9..0abb06b357 100644 --- a/include/hw/pci/pci.h +++ b/include/hw/pci/pci.h @@ -396,6 +396,8 @@ typedef PCIINTxRoute (*pci_route_irq_fn)(void *opaque, int pin); bool pci_bus_is_express(PCIBus *bus); bool pci_bus_is_root(PCIBus *bus); +bool pci_bus_allows_extended_config_space(PCIBus *bus); + void pci_root_bus_new_inplace(PCIBus *bus, size_t bus_size, DeviceState *parent, const char *name, MemoryRegion *address_space_mem, diff --git a/include/hw/pci/pci_bus.h b/include/hw/pci/pci_bus.h index dfb75752cb..f6df834170 100644 --- a/include/hw/pci/pci_bus.h +++ b/include/hw/pci/pci_bus.h @@ -18,6 +18,7 @@ typedef struct PCIBusClass { bool (*is_root)(PCIBus *bus); int (*bus_num)(PCIBus *bus); uint16_t (*numa_node)(PCIBus *bus); + bool (*allows_extended_config_space)(PCIBus *bus); } PCIBusClass; struct PCIBus { |