6e270446d0
This patch implements the infrastructure and hypercalls necessary for the PAPR specified Virtual SCSI interface. This is the normal method for providing (virtual) disks to PAPR partitions. Signed-off-by: Ben Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: David Gibson <dwg@au1.ibm.com> Signed-off-by: Alexander Graf <agraf@suse.de>
108 lines
3.7 KiB
C
108 lines
3.7 KiB
C
#ifndef _HW_SPAPR_VIO_H
|
|
#define _HW_SPAPR_VIO_H
|
|
/*
|
|
* QEMU sPAPR VIO bus definitions
|
|
*
|
|
* Copyright (c) 2010 David Gibson, IBM Corporation <david@gibson.dropbear.id.au>
|
|
* Based on the s390 virtio bus definitions:
|
|
* Copyright (c) 2009 Alexander Graf <agraf@suse.de>
|
|
*
|
|
* This library is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU Lesser General Public
|
|
* License as published by the Free Software Foundation; either
|
|
* version 2 of the License, or (at your option) any later version.
|
|
*
|
|
* This library 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
|
|
* Lesser General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Lesser General Public
|
|
* License along with this library; if not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
#define SPAPR_VIO_TCE_PAGE_SHIFT 12
|
|
#define SPAPR_VIO_TCE_PAGE_SIZE (1ULL << SPAPR_VIO_TCE_PAGE_SHIFT)
|
|
#define SPAPR_VIO_TCE_PAGE_MASK (SPAPR_VIO_TCE_PAGE_SIZE - 1)
|
|
|
|
enum VIOsPAPR_TCEAccess {
|
|
SPAPR_TCE_FAULT = 0,
|
|
SPAPR_TCE_RO = 1,
|
|
SPAPR_TCE_WO = 2,
|
|
SPAPR_TCE_RW = 3,
|
|
};
|
|
|
|
struct VIOsPAPRDevice;
|
|
|
|
typedef struct VIOsPAPR_RTCE {
|
|
uint64_t tce;
|
|
} VIOsPAPR_RTCE;
|
|
|
|
typedef struct VIOsPAPR_CRQ {
|
|
uint64_t qladdr;
|
|
uint32_t qsize;
|
|
uint32_t qnext;
|
|
int(*SendFunc)(struct VIOsPAPRDevice *vdev, uint8_t *crq);
|
|
} VIOsPAPR_CRQ;
|
|
|
|
typedef struct VIOsPAPRDevice {
|
|
DeviceState qdev;
|
|
uint32_t reg;
|
|
qemu_irq qirq;
|
|
uint32_t vio_irq_num;
|
|
target_ulong signal_state;
|
|
uint32_t rtce_window_size;
|
|
VIOsPAPR_RTCE *rtce_table;
|
|
VIOsPAPR_CRQ crq;
|
|
} VIOsPAPRDevice;
|
|
|
|
typedef struct VIOsPAPRBus {
|
|
BusState bus;
|
|
} VIOsPAPRBus;
|
|
|
|
typedef struct {
|
|
DeviceInfo qdev;
|
|
const char *dt_name, *dt_type, *dt_compatible;
|
|
target_ulong signal_mask;
|
|
int (*init)(VIOsPAPRDevice *dev);
|
|
void (*hcalls)(VIOsPAPRBus *bus);
|
|
int (*devnode)(VIOsPAPRDevice *dev, void *fdt, int node_off);
|
|
} VIOsPAPRDeviceInfo;
|
|
|
|
extern VIOsPAPRBus *spapr_vio_bus_init(void);
|
|
extern VIOsPAPRDevice *spapr_vio_find_by_reg(VIOsPAPRBus *bus, uint32_t reg);
|
|
extern void spapr_vio_bus_register_withprop(VIOsPAPRDeviceInfo *info);
|
|
extern int spapr_populate_vdevice(VIOsPAPRBus *bus, void *fdt);
|
|
|
|
extern int spapr_vio_signal(VIOsPAPRDevice *dev, target_ulong mode);
|
|
|
|
int spapr_vio_check_tces(VIOsPAPRDevice *dev, target_ulong ioba,
|
|
target_ulong len,
|
|
enum VIOsPAPR_TCEAccess access);
|
|
|
|
int spapr_tce_dma_read(VIOsPAPRDevice *dev, uint64_t taddr,
|
|
void *buf, uint32_t size);
|
|
int spapr_tce_dma_write(VIOsPAPRDevice *dev, uint64_t taddr,
|
|
const void *buf, uint32_t size);
|
|
int spapr_tce_dma_zero(VIOsPAPRDevice *dev, uint64_t taddr, uint32_t size);
|
|
void stb_tce(VIOsPAPRDevice *dev, uint64_t taddr, uint8_t val);
|
|
void sth_tce(VIOsPAPRDevice *dev, uint64_t taddr, uint16_t val);
|
|
void stw_tce(VIOsPAPRDevice *dev, uint64_t taddr, uint32_t val);
|
|
void stq_tce(VIOsPAPRDevice *dev, uint64_t taddr, uint64_t val);
|
|
uint64_t ldq_tce(VIOsPAPRDevice *dev, uint64_t taddr);
|
|
|
|
int spapr_vio_send_crq(VIOsPAPRDevice *dev, uint8_t *crq);
|
|
|
|
void vty_putchars(VIOsPAPRDevice *sdev, uint8_t *buf, int len);
|
|
void spapr_vty_create(VIOsPAPRBus *bus,
|
|
uint32_t reg, CharDriverState *chardev,
|
|
qemu_irq qirq, uint32_t vio_irq_num);
|
|
|
|
void spapr_vlan_create(VIOsPAPRBus *bus, uint32_t reg, NICInfo *nd,
|
|
qemu_irq qirq, uint32_t vio_irq_num);
|
|
|
|
void spapr_vscsi_create(VIOsPAPRBus *bus, uint32_t reg,
|
|
qemu_irq qirq, uint32_t vio_irq_num);
|
|
|
|
#endif /* _HW_SPAPR_VIO_H */
|