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This patch adds infrastructure to support interrupts from PAPR virtual IO devices. This includes correctly advertising those interrupts in the device tree, and implementing the H_VIO_SIGNAL hypercall, used to enable and disable individual device interrupts. Signed-off-by: David Gibson <dwg@au1.ibm.com> Signed-off-by: Alexander Graf <agraf@suse.de>
56 lines
1.9 KiB
C
56 lines
1.9 KiB
C
#ifndef _HW_SPAPR_VIO_H
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#define _HW_SPAPR_VIO_H
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/*
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* QEMU sPAPR VIO bus definitions
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*
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* Copyright (c) 2010 David Gibson, IBM Corporation <david@gibson.dropbear.id.au>
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* Based on the s390 virtio bus definitions:
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* Copyright (c) 2009 Alexander Graf <agraf@suse.de>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, see <http://www.gnu.org/licenses/>.
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*/
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typedef struct VIOsPAPRDevice {
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DeviceState qdev;
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uint32_t reg;
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qemu_irq qirq;
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uint32_t vio_irq_num;
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target_ulong signal_state;
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} VIOsPAPRDevice;
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typedef struct VIOsPAPRBus {
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BusState bus;
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} VIOsPAPRBus;
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typedef struct {
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DeviceInfo qdev;
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const char *dt_name, *dt_type, *dt_compatible;
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target_ulong signal_mask;
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int (*init)(VIOsPAPRDevice *dev);
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void (*hcalls)(VIOsPAPRBus *bus);
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int (*devnode)(VIOsPAPRDevice *dev, void *fdt, int node_off);
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} VIOsPAPRDeviceInfo;
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extern VIOsPAPRBus *spapr_vio_bus_init(void);
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extern VIOsPAPRDevice *spapr_vio_find_by_reg(VIOsPAPRBus *bus, uint32_t reg);
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extern void spapr_vio_bus_register_withprop(VIOsPAPRDeviceInfo *info);
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extern int spapr_populate_vdevice(VIOsPAPRBus *bus, void *fdt);
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extern int spapr_vio_signal(VIOsPAPRDevice *dev, target_ulong mode);
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void vty_putchars(VIOsPAPRDevice *sdev, uint8_t *buf, int len);
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void spapr_vty_create(VIOsPAPRBus *bus,
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uint32_t reg, CharDriverState *chardev);
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#endif /* _HW_SPAPR_VIO_H */
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