mirror of
https://git.proxmox.com/git/qemu
synced 2025-10-31 23:31:37 +00:00
0208def1ca
The lower bits of base/limit registers is RO and shouldn't be zero cleared on reset. This patch fixes it. In fact, the default value of base/limit registers aren't specified in the spec. And some bridges disable forwarding on reset instead of zeroing base/limit registers. So introduce one function to disable bridge forwarding so that such bridges can use it. It will be used later. Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
67 lines
2.1 KiB
C
67 lines
2.1 KiB
C
/*
|
|
* QEMU PCI bridge
|
|
*
|
|
* Copyright (c) 2004 Fabrice Bellard
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation; either version 2 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; if not, write to the Free Software
|
|
* Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
|
|
*
|
|
* split out pci bus specific stuff from pci.[hc] to pci_bridge.[hc]
|
|
* Copyright (c) 2009 Isaku Yamahata <yamahata at valinux co jp>
|
|
* VA Linux Systems Japan K.K.
|
|
*
|
|
*/
|
|
|
|
#ifndef QEMU_PCI_BRIDGE_H
|
|
#define QEMU_PCI_BRIDGE_H
|
|
|
|
#include "pci.h"
|
|
|
|
int pci_bridge_ssvid_init(PCIDevice *dev, uint8_t offset,
|
|
uint16_t svid, uint16_t ssid);
|
|
|
|
PCIDevice *pci_bridge_get_device(PCIBus *bus);
|
|
PCIBus *pci_bridge_get_sec_bus(PCIBridge *br);
|
|
|
|
pcibus_t pci_bridge_get_base(const PCIDevice *bridge, uint8_t type);
|
|
pcibus_t pci_bridge_get_limit(const PCIDevice *bridge, uint8_t type);
|
|
|
|
void pci_bridge_write_config(PCIDevice *d,
|
|
uint32_t address, uint32_t val, int len);
|
|
void pci_bridge_disable_base_limit(PCIDevice *dev);
|
|
void pci_bridge_reset_reg(PCIDevice *dev);
|
|
void pci_bridge_reset(DeviceState *qdev);
|
|
|
|
int pci_bridge_initfn(PCIDevice *pci_dev);
|
|
int pci_bridge_exitfn(PCIDevice *pci_dev);
|
|
|
|
|
|
/*
|
|
* before qdev initialization(qdev_init()), this function sets bus_name and
|
|
* map_irq callback which are necessry for pci_bridge_initfn() to
|
|
* initialize bus.
|
|
*/
|
|
void pci_bridge_map_irq(PCIBridge *br, const char* bus_name,
|
|
pci_map_irq_fn map_irq);
|
|
|
|
#endif /* QEMU_PCI_BRIDGE_H */
|
|
/*
|
|
* Local variables:
|
|
* c-indent-level: 4
|
|
* c-basic-offset: 4
|
|
* tab-width: 8
|
|
* indent-tab-mode: nil
|
|
* End:
|
|
*/
|