mirror of https://github.com/proxmox/mirror_qemu
742 lines
18 KiB
C
742 lines
18 KiB
C
/*
|
|
* QEMU sPAPR VIO code
|
|
*
|
|
* Copyright (c) 2010 David Gibson, IBM Corporation <dwg@au1.ibm.com>
|
|
* Based on the s390 virtio bus code:
|
|
* 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/>.
|
|
*/
|
|
|
|
#include "hw.h"
|
|
#include "sysemu.h"
|
|
#include "boards.h"
|
|
#include "monitor.h"
|
|
#include "loader.h"
|
|
#include "elf.h"
|
|
#include "hw/sysbus.h"
|
|
#include "kvm.h"
|
|
#include "device_tree.h"
|
|
#include "kvm_ppc.h"
|
|
|
|
#include "hw/spapr.h"
|
|
#include "hw/spapr_vio.h"
|
|
#include "hw/xics.h"
|
|
|
|
#ifdef CONFIG_FDT
|
|
#include <libfdt.h>
|
|
#endif /* CONFIG_FDT */
|
|
|
|
/* #define DEBUG_SPAPR */
|
|
/* #define DEBUG_TCE */
|
|
|
|
#ifdef DEBUG_SPAPR
|
|
#define dprintf(fmt, ...) \
|
|
do { fprintf(stderr, fmt, ## __VA_ARGS__); } while (0)
|
|
#else
|
|
#define dprintf(fmt, ...) \
|
|
do { } while (0)
|
|
#endif
|
|
|
|
static struct BusInfo spapr_vio_bus_info = {
|
|
.name = "spapr-vio",
|
|
.size = sizeof(VIOsPAPRBus),
|
|
.props = (Property[]) {
|
|
DEFINE_PROP_UINT32("irq", VIOsPAPRDevice, vio_irq_num, 0), \
|
|
DEFINE_PROP_END_OF_LIST(),
|
|
},
|
|
};
|
|
|
|
VIOsPAPRDevice *spapr_vio_find_by_reg(VIOsPAPRBus *bus, uint32_t reg)
|
|
{
|
|
DeviceState *qdev;
|
|
VIOsPAPRDevice *dev = NULL;
|
|
|
|
QLIST_FOREACH(qdev, &bus->bus.children, sibling) {
|
|
dev = (VIOsPAPRDevice *)qdev;
|
|
if (dev->reg == reg) {
|
|
break;
|
|
}
|
|
}
|
|
|
|
return dev;
|
|
}
|
|
|
|
#ifdef CONFIG_FDT
|
|
static int vio_make_devnode(VIOsPAPRDevice *dev,
|
|
void *fdt)
|
|
{
|
|
VIOsPAPRDeviceInfo *info = (VIOsPAPRDeviceInfo *)dev->qdev.info;
|
|
int vdevice_off, node_off;
|
|
int ret;
|
|
|
|
vdevice_off = fdt_path_offset(fdt, "/vdevice");
|
|
if (vdevice_off < 0) {
|
|
return vdevice_off;
|
|
}
|
|
|
|
node_off = fdt_add_subnode(fdt, vdevice_off, dev->qdev.id);
|
|
if (node_off < 0) {
|
|
return node_off;
|
|
}
|
|
|
|
ret = fdt_setprop_cell(fdt, node_off, "reg", dev->reg);
|
|
if (ret < 0) {
|
|
return ret;
|
|
}
|
|
|
|
if (info->dt_type) {
|
|
ret = fdt_setprop_string(fdt, node_off, "device_type",
|
|
info->dt_type);
|
|
if (ret < 0) {
|
|
return ret;
|
|
}
|
|
}
|
|
|
|
if (info->dt_compatible) {
|
|
ret = fdt_setprop_string(fdt, node_off, "compatible",
|
|
info->dt_compatible);
|
|
if (ret < 0) {
|
|
return ret;
|
|
}
|
|
}
|
|
|
|
if (dev->qirq) {
|
|
uint32_t ints_prop[] = {cpu_to_be32(dev->vio_irq_num), 0};
|
|
|
|
ret = fdt_setprop(fdt, node_off, "interrupts", ints_prop,
|
|
sizeof(ints_prop));
|
|
if (ret < 0) {
|
|
return ret;
|
|
}
|
|
}
|
|
|
|
if (dev->rtce_window_size) {
|
|
uint32_t dma_prop[] = {cpu_to_be32(dev->reg),
|
|
0, 0,
|
|
0, cpu_to_be32(dev->rtce_window_size)};
|
|
|
|
ret = fdt_setprop_cell(fdt, node_off, "ibm,#dma-address-cells", 2);
|
|
if (ret < 0) {
|
|
return ret;
|
|
}
|
|
|
|
ret = fdt_setprop_cell(fdt, node_off, "ibm,#dma-size-cells", 2);
|
|
if (ret < 0) {
|
|
return ret;
|
|
}
|
|
|
|
ret = fdt_setprop(fdt, node_off, "ibm,my-dma-window", dma_prop,
|
|
sizeof(dma_prop));
|
|
if (ret < 0) {
|
|
return ret;
|
|
}
|
|
}
|
|
|
|
if (info->devnode) {
|
|
ret = (info->devnode)(dev, fdt, node_off);
|
|
if (ret < 0) {
|
|
return ret;
|
|
}
|
|
}
|
|
|
|
return node_off;
|
|
}
|
|
#endif /* CONFIG_FDT */
|
|
|
|
/*
|
|
* RTCE handling
|
|
*/
|
|
|
|
static void rtce_init(VIOsPAPRDevice *dev)
|
|
{
|
|
size_t size = (dev->rtce_window_size >> SPAPR_VIO_TCE_PAGE_SHIFT)
|
|
* sizeof(VIOsPAPR_RTCE);
|
|
|
|
if (size) {
|
|
dev->rtce_table = g_malloc0(size);
|
|
}
|
|
}
|
|
|
|
static target_ulong h_put_tce(CPUState *env, sPAPREnvironment *spapr,
|
|
target_ulong opcode, target_ulong *args)
|
|
{
|
|
target_ulong liobn = args[0];
|
|
target_ulong ioba = args[1];
|
|
target_ulong tce = args[2];
|
|
VIOsPAPRDevice *dev = spapr_vio_find_by_reg(spapr->vio_bus, liobn);
|
|
VIOsPAPR_RTCE *rtce;
|
|
|
|
if (!dev) {
|
|
hcall_dprintf("spapr_vio_put_tce on non-existent LIOBN "
|
|
TARGET_FMT_lx "\n", liobn);
|
|
return H_PARAMETER;
|
|
}
|
|
|
|
ioba &= ~(SPAPR_VIO_TCE_PAGE_SIZE - 1);
|
|
|
|
#ifdef DEBUG_TCE
|
|
fprintf(stderr, "spapr_vio_put_tce on %s ioba 0x" TARGET_FMT_lx
|
|
" TCE 0x" TARGET_FMT_lx "\n", dev->qdev.id, ioba, tce);
|
|
#endif
|
|
|
|
if (ioba >= dev->rtce_window_size) {
|
|
hcall_dprintf("spapr_vio_put_tce on out-of-boards IOBA 0x"
|
|
TARGET_FMT_lx "\n", ioba);
|
|
return H_PARAMETER;
|
|
}
|
|
|
|
rtce = dev->rtce_table + (ioba >> SPAPR_VIO_TCE_PAGE_SHIFT);
|
|
rtce->tce = tce;
|
|
|
|
return H_SUCCESS;
|
|
}
|
|
|
|
int spapr_vio_check_tces(VIOsPAPRDevice *dev, target_ulong ioba,
|
|
target_ulong len, enum VIOsPAPR_TCEAccess access)
|
|
{
|
|
int start, end, i;
|
|
|
|
start = ioba >> SPAPR_VIO_TCE_PAGE_SHIFT;
|
|
end = (ioba + len - 1) >> SPAPR_VIO_TCE_PAGE_SHIFT;
|
|
|
|
for (i = start; i <= end; i++) {
|
|
if ((dev->rtce_table[i].tce & access) != access) {
|
|
#ifdef DEBUG_TCE
|
|
fprintf(stderr, "FAIL on %d\n", i);
|
|
#endif
|
|
return -1;
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
int spapr_tce_dma_write(VIOsPAPRDevice *dev, uint64_t taddr, const void *buf,
|
|
uint32_t size)
|
|
{
|
|
#ifdef DEBUG_TCE
|
|
fprintf(stderr, "spapr_tce_dma_write taddr=0x%llx size=0x%x\n",
|
|
(unsigned long long)taddr, size);
|
|
#endif
|
|
|
|
/* Check for bypass */
|
|
if (dev->flags & VIO_PAPR_FLAG_DMA_BYPASS) {
|
|
cpu_physical_memory_write(taddr, buf, size);
|
|
return 0;
|
|
}
|
|
|
|
while (size) {
|
|
uint64_t tce;
|
|
uint32_t lsize;
|
|
uint64_t txaddr;
|
|
|
|
/* Check if we are in bound */
|
|
if (taddr >= dev->rtce_window_size) {
|
|
#ifdef DEBUG_TCE
|
|
fprintf(stderr, "spapr_tce_dma_write out of bounds\n");
|
|
#endif
|
|
return H_DEST_PARM;
|
|
}
|
|
tce = dev->rtce_table[taddr >> SPAPR_VIO_TCE_PAGE_SHIFT].tce;
|
|
|
|
/* How much til end of page ? */
|
|
lsize = MIN(size, ((~taddr) & SPAPR_VIO_TCE_PAGE_MASK) + 1);
|
|
|
|
/* Check TCE */
|
|
if (!(tce & 2)) {
|
|
return H_DEST_PARM;
|
|
}
|
|
|
|
/* Translate */
|
|
txaddr = (tce & ~SPAPR_VIO_TCE_PAGE_MASK) |
|
|
(taddr & SPAPR_VIO_TCE_PAGE_MASK);
|
|
|
|
#ifdef DEBUG_TCE
|
|
fprintf(stderr, " -> write to txaddr=0x%llx, size=0x%x\n",
|
|
(unsigned long long)txaddr, lsize);
|
|
#endif
|
|
|
|
/* Do it */
|
|
cpu_physical_memory_write(txaddr, buf, lsize);
|
|
buf += lsize;
|
|
taddr += lsize;
|
|
size -= lsize;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
int spapr_tce_dma_zero(VIOsPAPRDevice *dev, uint64_t taddr, uint32_t size)
|
|
{
|
|
/* FIXME: allocating a temp buffer is nasty, but just stepping
|
|
* through writing zeroes is awkward. This will do for now. */
|
|
uint8_t zeroes[size];
|
|
|
|
#ifdef DEBUG_TCE
|
|
fprintf(stderr, "spapr_tce_dma_zero taddr=0x%llx size=0x%x\n",
|
|
(unsigned long long)taddr, size);
|
|
#endif
|
|
|
|
memset(zeroes, 0, size);
|
|
return spapr_tce_dma_write(dev, taddr, zeroes, size);
|
|
}
|
|
|
|
void stb_tce(VIOsPAPRDevice *dev, uint64_t taddr, uint8_t val)
|
|
{
|
|
spapr_tce_dma_write(dev, taddr, &val, sizeof(val));
|
|
}
|
|
|
|
void sth_tce(VIOsPAPRDevice *dev, uint64_t taddr, uint16_t val)
|
|
{
|
|
val = tswap16(val);
|
|
spapr_tce_dma_write(dev, taddr, &val, sizeof(val));
|
|
}
|
|
|
|
|
|
void stw_tce(VIOsPAPRDevice *dev, uint64_t taddr, uint32_t val)
|
|
{
|
|
val = tswap32(val);
|
|
spapr_tce_dma_write(dev, taddr, &val, sizeof(val));
|
|
}
|
|
|
|
void stq_tce(VIOsPAPRDevice *dev, uint64_t taddr, uint64_t val)
|
|
{
|
|
val = tswap64(val);
|
|
spapr_tce_dma_write(dev, taddr, &val, sizeof(val));
|
|
}
|
|
|
|
int spapr_tce_dma_read(VIOsPAPRDevice *dev, uint64_t taddr, void *buf,
|
|
uint32_t size)
|
|
{
|
|
#ifdef DEBUG_TCE
|
|
fprintf(stderr, "spapr_tce_dma_write taddr=0x%llx size=0x%x\n",
|
|
(unsigned long long)taddr, size);
|
|
#endif
|
|
|
|
/* Check for bypass */
|
|
if (dev->flags & VIO_PAPR_FLAG_DMA_BYPASS) {
|
|
cpu_physical_memory_read(taddr, buf, size);
|
|
return 0;
|
|
}
|
|
|
|
while (size) {
|
|
uint64_t tce;
|
|
uint32_t lsize;
|
|
uint64_t txaddr;
|
|
|
|
/* Check if we are in bound */
|
|
if (taddr >= dev->rtce_window_size) {
|
|
#ifdef DEBUG_TCE
|
|
fprintf(stderr, "spapr_tce_dma_read out of bounds\n");
|
|
#endif
|
|
return H_DEST_PARM;
|
|
}
|
|
tce = dev->rtce_table[taddr >> SPAPR_VIO_TCE_PAGE_SHIFT].tce;
|
|
|
|
/* How much til end of page ? */
|
|
lsize = MIN(size, ((~taddr) & SPAPR_VIO_TCE_PAGE_MASK) + 1);
|
|
|
|
/* Check TCE */
|
|
if (!(tce & 1)) {
|
|
return H_DEST_PARM;
|
|
}
|
|
|
|
/* Translate */
|
|
txaddr = (tce & ~SPAPR_VIO_TCE_PAGE_MASK) |
|
|
(taddr & SPAPR_VIO_TCE_PAGE_MASK);
|
|
|
|
#ifdef DEBUG_TCE
|
|
fprintf(stderr, " -> write to txaddr=0x%llx, size=0x%x\n",
|
|
(unsigned long long)txaddr, lsize);
|
|
#endif
|
|
/* Do it */
|
|
cpu_physical_memory_read(txaddr, buf, lsize);
|
|
buf += lsize;
|
|
taddr += lsize;
|
|
size -= lsize;
|
|
}
|
|
return H_SUCCESS;
|
|
}
|
|
|
|
uint64_t ldq_tce(VIOsPAPRDevice *dev, uint64_t taddr)
|
|
{
|
|
uint64_t val;
|
|
|
|
spapr_tce_dma_read(dev, taddr, &val, sizeof(val));
|
|
return tswap64(val);
|
|
}
|
|
|
|
/*
|
|
* CRQ handling
|
|
*/
|
|
static target_ulong h_reg_crq(CPUState *env, sPAPREnvironment *spapr,
|
|
target_ulong opcode, target_ulong *args)
|
|
{
|
|
target_ulong reg = args[0];
|
|
target_ulong queue_addr = args[1];
|
|
target_ulong queue_len = args[2];
|
|
VIOsPAPRDevice *dev = spapr_vio_find_by_reg(spapr->vio_bus, reg);
|
|
|
|
if (!dev) {
|
|
hcall_dprintf("h_reg_crq on non-existent unit 0x"
|
|
TARGET_FMT_lx "\n", reg);
|
|
return H_PARAMETER;
|
|
}
|
|
|
|
/* We can't grok a queue size bigger than 256M for now */
|
|
if (queue_len < 0x1000 || queue_len > 0x10000000) {
|
|
hcall_dprintf("h_reg_crq, queue size too small or too big (0x%llx)\n",
|
|
(unsigned long long)queue_len);
|
|
return H_PARAMETER;
|
|
}
|
|
|
|
/* Check queue alignment */
|
|
if (queue_addr & 0xfff) {
|
|
hcall_dprintf("h_reg_crq, queue not aligned (0x%llx)\n",
|
|
(unsigned long long)queue_addr);
|
|
return H_PARAMETER;
|
|
}
|
|
|
|
/* Check if device supports CRQs */
|
|
if (!dev->crq.SendFunc) {
|
|
return H_NOT_FOUND;
|
|
}
|
|
|
|
|
|
/* Already a queue ? */
|
|
if (dev->crq.qsize) {
|
|
return H_RESOURCE;
|
|
}
|
|
dev->crq.qladdr = queue_addr;
|
|
dev->crq.qsize = queue_len;
|
|
dev->crq.qnext = 0;
|
|
|
|
dprintf("CRQ for dev 0x" TARGET_FMT_lx " registered at 0x"
|
|
TARGET_FMT_lx "/0x" TARGET_FMT_lx "\n",
|
|
reg, queue_addr, queue_len);
|
|
return H_SUCCESS;
|
|
}
|
|
|
|
static target_ulong h_free_crq(CPUState *env, sPAPREnvironment *spapr,
|
|
target_ulong opcode, target_ulong *args)
|
|
{
|
|
target_ulong reg = args[0];
|
|
VIOsPAPRDevice *dev = spapr_vio_find_by_reg(spapr->vio_bus, reg);
|
|
|
|
if (!dev) {
|
|
hcall_dprintf("h_free_crq on non-existent unit 0x"
|
|
TARGET_FMT_lx "\n", reg);
|
|
return H_PARAMETER;
|
|
}
|
|
|
|
dev->crq.qladdr = 0;
|
|
dev->crq.qsize = 0;
|
|
dev->crq.qnext = 0;
|
|
|
|
dprintf("CRQ for dev 0x" TARGET_FMT_lx " freed\n", reg);
|
|
|
|
return H_SUCCESS;
|
|
}
|
|
|
|
static target_ulong h_send_crq(CPUState *env, sPAPREnvironment *spapr,
|
|
target_ulong opcode, target_ulong *args)
|
|
{
|
|
target_ulong reg = args[0];
|
|
target_ulong msg_hi = args[1];
|
|
target_ulong msg_lo = args[2];
|
|
VIOsPAPRDevice *dev = spapr_vio_find_by_reg(spapr->vio_bus, reg);
|
|
uint64_t crq_mangle[2];
|
|
|
|
if (!dev) {
|
|
hcall_dprintf("h_send_crq on non-existent unit 0x"
|
|
TARGET_FMT_lx "\n", reg);
|
|
return H_PARAMETER;
|
|
}
|
|
crq_mangle[0] = cpu_to_be64(msg_hi);
|
|
crq_mangle[1] = cpu_to_be64(msg_lo);
|
|
|
|
if (dev->crq.SendFunc) {
|
|
return dev->crq.SendFunc(dev, (uint8_t *)crq_mangle);
|
|
}
|
|
|
|
return H_HARDWARE;
|
|
}
|
|
|
|
static target_ulong h_enable_crq(CPUState *env, sPAPREnvironment *spapr,
|
|
target_ulong opcode, target_ulong *args)
|
|
{
|
|
target_ulong reg = args[0];
|
|
VIOsPAPRDevice *dev = spapr_vio_find_by_reg(spapr->vio_bus, reg);
|
|
|
|
if (!dev) {
|
|
hcall_dprintf("h_enable_crq on non-existent unit 0x"
|
|
TARGET_FMT_lx "\n", reg);
|
|
return H_PARAMETER;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
/* Returns negative error, 0 success, or positive: queue full */
|
|
int spapr_vio_send_crq(VIOsPAPRDevice *dev, uint8_t *crq)
|
|
{
|
|
int rc;
|
|
uint8_t byte;
|
|
|
|
if (!dev->crq.qsize) {
|
|
fprintf(stderr, "spapr_vio_send_creq on uninitialized queue\n");
|
|
return -1;
|
|
}
|
|
|
|
/* Maybe do a fast path for KVM just writing to the pages */
|
|
rc = spapr_tce_dma_read(dev, dev->crq.qladdr + dev->crq.qnext, &byte, 1);
|
|
if (rc) {
|
|
return rc;
|
|
}
|
|
if (byte != 0) {
|
|
return 1;
|
|
}
|
|
|
|
rc = spapr_tce_dma_write(dev, dev->crq.qladdr + dev->crq.qnext + 8,
|
|
&crq[8], 8);
|
|
if (rc) {
|
|
return rc;
|
|
}
|
|
|
|
kvmppc_eieio();
|
|
|
|
rc = spapr_tce_dma_write(dev, dev->crq.qladdr + dev->crq.qnext, crq, 8);
|
|
if (rc) {
|
|
return rc;
|
|
}
|
|
|
|
dev->crq.qnext = (dev->crq.qnext + 16) % dev->crq.qsize;
|
|
|
|
if (dev->signal_state & 1) {
|
|
qemu_irq_pulse(dev->qirq);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
/* "quiesce" handling */
|
|
|
|
static void spapr_vio_quiesce_one(VIOsPAPRDevice *dev)
|
|
{
|
|
dev->flags &= ~VIO_PAPR_FLAG_DMA_BYPASS;
|
|
|
|
if (dev->rtce_table) {
|
|
size_t size = (dev->rtce_window_size >> SPAPR_VIO_TCE_PAGE_SHIFT)
|
|
* sizeof(VIOsPAPR_RTCE);
|
|
memset(dev->rtce_table, 0, size);
|
|
}
|
|
|
|
dev->crq.qladdr = 0;
|
|
dev->crq.qsize = 0;
|
|
dev->crq.qnext = 0;
|
|
}
|
|
|
|
static void rtas_set_tce_bypass(sPAPREnvironment *spapr, uint32_t token,
|
|
uint32_t nargs, target_ulong args,
|
|
uint32_t nret, target_ulong rets)
|
|
{
|
|
VIOsPAPRBus *bus = spapr->vio_bus;
|
|
VIOsPAPRDevice *dev;
|
|
uint32_t unit, enable;
|
|
|
|
if (nargs != 2) {
|
|
rtas_st(rets, 0, -3);
|
|
return;
|
|
}
|
|
unit = rtas_ld(args, 0);
|
|
enable = rtas_ld(args, 1);
|
|
dev = spapr_vio_find_by_reg(bus, unit);
|
|
if (!dev) {
|
|
rtas_st(rets, 0, -3);
|
|
return;
|
|
}
|
|
if (enable) {
|
|
dev->flags |= VIO_PAPR_FLAG_DMA_BYPASS;
|
|
} else {
|
|
dev->flags &= ~VIO_PAPR_FLAG_DMA_BYPASS;
|
|
}
|
|
|
|
rtas_st(rets, 0, 0);
|
|
}
|
|
|
|
static void rtas_quiesce(sPAPREnvironment *spapr, uint32_t token,
|
|
uint32_t nargs, target_ulong args,
|
|
uint32_t nret, target_ulong rets)
|
|
{
|
|
VIOsPAPRBus *bus = spapr->vio_bus;
|
|
DeviceState *qdev;
|
|
VIOsPAPRDevice *dev = NULL;
|
|
|
|
if (nargs != 0) {
|
|
rtas_st(rets, 0, -3);
|
|
return;
|
|
}
|
|
|
|
QLIST_FOREACH(qdev, &bus->bus.children, sibling) {
|
|
dev = (VIOsPAPRDevice *)qdev;
|
|
spapr_vio_quiesce_one(dev);
|
|
}
|
|
|
|
rtas_st(rets, 0, 0);
|
|
}
|
|
|
|
static int spapr_vio_busdev_init(DeviceState *qdev, DeviceInfo *qinfo)
|
|
{
|
|
VIOsPAPRDeviceInfo *info = (VIOsPAPRDeviceInfo *)qinfo;
|
|
VIOsPAPRDevice *dev = (VIOsPAPRDevice *)qdev;
|
|
char *id;
|
|
|
|
if (asprintf(&id, "%s@%x", info->dt_name, dev->reg) < 0) {
|
|
return -1;
|
|
}
|
|
|
|
dev->qdev.id = id;
|
|
|
|
dev->qirq = spapr_allocate_irq(dev->vio_irq_num, &dev->vio_irq_num);
|
|
if (!dev->qirq) {
|
|
return -1;
|
|
}
|
|
|
|
rtce_init(dev);
|
|
|
|
return info->init(dev);
|
|
}
|
|
|
|
void spapr_vio_bus_register_withprop(VIOsPAPRDeviceInfo *info)
|
|
{
|
|
info->qdev.init = spapr_vio_busdev_init;
|
|
info->qdev.bus_info = &spapr_vio_bus_info;
|
|
|
|
assert(info->qdev.size >= sizeof(VIOsPAPRDevice));
|
|
qdev_register(&info->qdev);
|
|
}
|
|
|
|
static target_ulong h_vio_signal(CPUState *env, sPAPREnvironment *spapr,
|
|
target_ulong opcode,
|
|
target_ulong *args)
|
|
{
|
|
target_ulong reg = args[0];
|
|
target_ulong mode = args[1];
|
|
VIOsPAPRDevice *dev = spapr_vio_find_by_reg(spapr->vio_bus, reg);
|
|
VIOsPAPRDeviceInfo *info;
|
|
|
|
if (!dev) {
|
|
return H_PARAMETER;
|
|
}
|
|
|
|
info = (VIOsPAPRDeviceInfo *)dev->qdev.info;
|
|
|
|
if (mode & ~info->signal_mask) {
|
|
return H_PARAMETER;
|
|
}
|
|
|
|
dev->signal_state = mode;
|
|
|
|
return H_SUCCESS;
|
|
}
|
|
|
|
VIOsPAPRBus *spapr_vio_bus_init(void)
|
|
{
|
|
VIOsPAPRBus *bus;
|
|
BusState *qbus;
|
|
DeviceState *dev;
|
|
DeviceInfo *qinfo;
|
|
|
|
/* Create bridge device */
|
|
dev = qdev_create(NULL, "spapr-vio-bridge");
|
|
qdev_init_nofail(dev);
|
|
|
|
/* Create bus on bridge device */
|
|
|
|
qbus = qbus_create(&spapr_vio_bus_info, dev, "spapr-vio");
|
|
bus = DO_UPCAST(VIOsPAPRBus, bus, qbus);
|
|
|
|
/* hcall-vio */
|
|
spapr_register_hypercall(H_VIO_SIGNAL, h_vio_signal);
|
|
|
|
/* hcall-tce */
|
|
spapr_register_hypercall(H_PUT_TCE, h_put_tce);
|
|
|
|
/* hcall-crq */
|
|
spapr_register_hypercall(H_REG_CRQ, h_reg_crq);
|
|
spapr_register_hypercall(H_FREE_CRQ, h_free_crq);
|
|
spapr_register_hypercall(H_SEND_CRQ, h_send_crq);
|
|
spapr_register_hypercall(H_ENABLE_CRQ, h_enable_crq);
|
|
|
|
/* RTAS calls */
|
|
spapr_rtas_register("ibm,set-tce-bypass", rtas_set_tce_bypass);
|
|
spapr_rtas_register("quiesce", rtas_quiesce);
|
|
|
|
for (qinfo = device_info_list; qinfo; qinfo = qinfo->next) {
|
|
VIOsPAPRDeviceInfo *info = (VIOsPAPRDeviceInfo *)qinfo;
|
|
|
|
if (qinfo->bus_info != &spapr_vio_bus_info) {
|
|
continue;
|
|
}
|
|
|
|
if (info->hcalls) {
|
|
info->hcalls(bus);
|
|
}
|
|
}
|
|
|
|
return bus;
|
|
}
|
|
|
|
/* Represents sPAPR hcall VIO devices */
|
|
|
|
static int spapr_vio_bridge_init(SysBusDevice *dev)
|
|
{
|
|
/* nothing */
|
|
return 0;
|
|
}
|
|
|
|
static SysBusDeviceInfo spapr_vio_bridge_info = {
|
|
.init = spapr_vio_bridge_init,
|
|
.qdev.name = "spapr-vio-bridge",
|
|
.qdev.size = sizeof(SysBusDevice),
|
|
.qdev.no_user = 1,
|
|
};
|
|
|
|
static void spapr_vio_register_devices(void)
|
|
{
|
|
sysbus_register_withprop(&spapr_vio_bridge_info);
|
|
}
|
|
|
|
device_init(spapr_vio_register_devices)
|
|
|
|
#ifdef CONFIG_FDT
|
|
int spapr_populate_vdevice(VIOsPAPRBus *bus, void *fdt)
|
|
{
|
|
DeviceState *qdev;
|
|
int ret = 0;
|
|
|
|
QLIST_FOREACH(qdev, &bus->bus.children, sibling) {
|
|
VIOsPAPRDevice *dev = (VIOsPAPRDevice *)qdev;
|
|
|
|
ret = vio_make_devnode(dev, fdt);
|
|
|
|
if (ret < 0) {
|
|
return ret;
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
#endif /* CONFIG_FDT */
|