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#include "hw.h"
#include "boards.h"
#include "pci.h"
#include "net.h"
#include "sysemu.h"
#include "pc.h"
#include "console.h"
#include "block_int.h"
#define PCI_BASE_CLASS_STORAGE 0x01
#define PCI_BASE_CLASS_NETWORK 0x02
static PCIDevice *qemu_system_hot_add_nic(const char *opts, int bus_nr)
{
int ret;
char buf[4096];
PCIBus *pci_bus;
pci_bus = pci_find_bus (bus_nr);
if (!pci_bus) {
term_printf ("Can't find pci_bus %d\n", bus_nr);
return NULL;
}
memset (buf, 0, sizeof (buf));
strcpy (buf, "nic,");
strncat (buf, opts, sizeof (buf) - strlen (buf) - 1);
ret = net_client_init (buf);
if (ret < 0 || !nd_table[ret].model)
return NULL;
return pci_nic_init (pci_bus, &nd_table[ret], -1);
}
static int add_init_drive(const char *opts)
{
int drive_opt_idx, drive_idx;
int ret = -1;
drive_opt_idx = drive_add(NULL, "%s", opts);
if (!drive_opt_idx)
return ret;
drive_idx = drive_init(&drives_opt[drive_opt_idx], 0, current_machine);
if (drive_idx == -1) {
drive_remove(drive_opt_idx);
return ret;
}
return drive_idx;
}
void drive_hot_add(int pcibus, const char *devfn_string, const char *opts)
{
int drive_idx, type, bus;
int devfn;
int success = 0;
PCIDevice *dev;
devfn = strtoul(devfn_string, NULL, 0);
dev = pci_find_device(pcibus, PCI_SLOT(devfn));
if (!dev) {
term_printf("no pci device with devfn %d (slot %d)\n", devfn,
PCI_SLOT(devfn));
return;
}
drive_idx = add_init_drive(opts);
if (drive_idx < 0)
return;
type = drives_table[drive_idx].type;
bus = drive_get_max_bus (type);
switch (type) {
case IF_SCSI:
success = 1;
lsi_scsi_attach (dev, drives_table[drive_idx].bdrv,
drives_table[drive_idx].unit);
break;
default:
term_printf("Can't hot-add drive to type %d\n", type);
}
if (success)
term_printf("OK bus %d, unit %d\n", drives_table[drive_idx].bus,
drives_table[drive_idx].unit);
return;
}
static PCIDevice *qemu_system_hot_add_storage(const char *opts, int bus_nr)
{
void *opaque = NULL;
PCIBus *pci_bus;
int type = -1, drive_idx = -1;
char buf[128];
pci_bus = pci_find_bus(bus_nr);
if (!pci_bus) {
term_printf("Can't find pci_bus %d\n", bus_nr);
return NULL;
}
if (get_param_value(buf, sizeof(buf), "if", opts)) {
if (!strcmp(buf, "scsi"))
type = IF_SCSI;
else if (!strcmp(buf, "virtio")) {
type = IF_VIRTIO;
}
} else {
term_printf("no if= specified\n");
return NULL;
}
if (get_param_value(buf, sizeof(buf), "file", opts)) {
drive_idx = add_init_drive(opts);
if (drive_idx < 0)
return NULL;
} else if (type == IF_VIRTIO) {
term_printf("virtio requires a backing file/device.\n");
return NULL;
}
switch (type) {
case IF_SCSI:
opaque = lsi_scsi_init (pci_bus, -1);
if (drive_idx >= 0)
lsi_scsi_attach (opaque, drives_table[drive_idx].bdrv,
drives_table[drive_idx].unit);
break;
case IF_VIRTIO:
opaque = virtio_blk_init (pci_bus, 0x1AF4, 0x1001,
drives_table[drive_idx].bdrv);
break;
default:
term_printf ("type %s not a hotpluggable PCI device.\n", buf);
}
return opaque;
}
#if defined(TARGET_I386) || defined(TARGET_X86_64)
void device_hot_add(int pcibus, const char *type, const char *opts)
{
PCIDevice *dev = NULL;
if (strcmp(type, "nic") == 0)
dev = qemu_system_hot_add_nic(opts, pcibus);
else if (strcmp(type, "storage") == 0)
dev = qemu_system_hot_add_storage(opts, pcibus);
else
term_printf("invalid type: %s\n", type);
if (dev) {
qemu_system_device_hot_add(pcibus, PCI_SLOT(dev->devfn), 1);
term_printf("OK bus %d, slot %d, function %d (devfn %d)\n",
pci_bus_num(dev->bus), PCI_SLOT(dev->devfn),
PCI_FUNC(dev->devfn), dev->devfn);
} else
term_printf("failed to add %s\n", opts);
}
void device_hot_remove(int pcibus, int slot)
{
PCIDevice *d = pci_find_device(pcibus, slot);
if (!d) {
term_printf("invalid slot %d\n", slot);
return;
}
qemu_system_device_hot_add(pcibus, slot, 0);
}
#endif
static void destroy_nic(int slot)
{
int i;
for (i = 0; i < MAX_NICS; i++)
if (nd_table[i].used &&
PCI_SLOT(nd_table[i].devfn) == slot)
net_client_uninit(&nd_table[i]);
}
static void destroy_bdrvs(int slot)
{
int i;
struct BlockDriverState *bs;
for (i = 0; i <= MAX_DRIVES; i++) {
bs = drives_table[i].bdrv;
if (bs && (PCI_SLOT(bs->devfn) == slot)) {
drive_uninit(bs);
bdrv_delete(bs);
}
}
}
/*
* OS has executed _EJ0 method, we now can remove the device
*/
void device_hot_remove_success(int pcibus, int slot)
{
PCIDevice *d = pci_find_device(pcibus, slot);
int class_code;
if (!d) {
term_printf("invalid slot %d\n", slot);
return;
}
class_code = d->config_read(d, PCI_CLASS_DEVICE+1, 1);
pci_unregister_device(d);
switch(class_code) {
case PCI_BASE_CLASS_STORAGE:
destroy_bdrvs(slot);
break;
case PCI_BASE_CLASS_NETWORK:
destroy_nic(slot);
break;
}
}
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