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Both functions are called by MemoryRegionOps.[read/write] handlers with unsigned 'size' argument. Both functions call pci_host_config_[read/write]_common() which expect a uint32_t 'len' parameter (also unsigned). Since it is pointless (and confuse) to use a signed value, use a unsigned type. Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com> Message-Id: <20191216002134.18279-3-philmd@redhat.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
74 lines
2.8 KiB
C
74 lines
2.8 KiB
C
/*
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* QEMU Common PCI Host bridge configuration data space access routines.
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*
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* Copyright (c) 2006 Fabrice Bellard
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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/* Worker routines for a PCI host controller that uses an {address,data}
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register pair to access PCI configuration space. */
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#ifndef PCI_HOST_H
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#define PCI_HOST_H
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#include "hw/sysbus.h"
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#define TYPE_PCI_HOST_BRIDGE "pci-host-bridge"
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#define PCI_HOST_BRIDGE(obj) \
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OBJECT_CHECK(PCIHostState, (obj), TYPE_PCI_HOST_BRIDGE)
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#define PCI_HOST_BRIDGE_CLASS(klass) \
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OBJECT_CLASS_CHECK(PCIHostBridgeClass, (klass), TYPE_PCI_HOST_BRIDGE)
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#define PCI_HOST_BRIDGE_GET_CLASS(obj) \
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OBJECT_GET_CLASS(PCIHostBridgeClass, (obj), TYPE_PCI_HOST_BRIDGE)
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struct PCIHostState {
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SysBusDevice busdev;
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MemoryRegion conf_mem;
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MemoryRegion data_mem;
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MemoryRegion mmcfg;
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uint32_t config_reg;
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PCIBus *bus;
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QLIST_ENTRY(PCIHostState) next;
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};
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typedef struct PCIHostBridgeClass {
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SysBusDeviceClass parent_class;
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const char *(*root_bus_path)(PCIHostState *, PCIBus *);
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} PCIHostBridgeClass;
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/* common internal helpers for PCI/PCIe hosts, cut off overflows */
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void pci_host_config_write_common(PCIDevice *pci_dev, uint32_t addr,
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uint32_t limit, uint32_t val, uint32_t len);
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uint32_t pci_host_config_read_common(PCIDevice *pci_dev, uint32_t addr,
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uint32_t limit, uint32_t len);
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void pci_data_write(PCIBus *s, uint32_t addr, uint32_t val, unsigned len);
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uint32_t pci_data_read(PCIBus *s, uint32_t addr, unsigned len);
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extern const MemoryRegionOps pci_host_conf_le_ops;
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extern const MemoryRegionOps pci_host_conf_be_ops;
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extern const MemoryRegionOps pci_host_data_le_ops;
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extern const MemoryRegionOps pci_host_data_be_ops;
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#endif /* PCI_HOST_H */
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