static void input_connected(struct XenDevice *xendev)
{
struct XenInput *in = container_of(xendev, struct XenInput, c.xendev);
if (xenstore_read_fe_int(xendev, "request-abs-pointer",
&in->abs_pointer_wanted) == -1) {
in->abs_pointer_wanted = 0;
}
if (xenstore_read_fe_int(xendev, "request-raw-pointer",
&in->raw_pointer_wanted) == -1) {
in->raw_pointer_wanted = 0;
}
if (in->raw_pointer_wanted && in->abs_pointer_wanted == 0) {
xen_pv_printf(xendev, 0, "raw pointer set without abs pointer");
}
if (in->qkbd) {
qemu_input_handler_unregister(in->qkbd);
}
if (in->qmou) {
qemu_input_handler_unregister(in->qmou);
}
trace_xenfb_input_connected(xendev, in->abs_pointer_wanted);
in->qkbd = qemu_input_handler_register((DeviceState *)in, &xenfb_keyboard);
in->qmou = qemu_input_handler_register((DeviceState *)in,
in->abs_pointer_wanted ? &xenfb_abs_mouse : &xenfb_rel_mouse);
if (in->raw_pointer_wanted) {
qemu_input_handler_activate(in->qkbd);
qemu_input_handler_activate(in->qmou);
}
}
static int blk_connect(struct XenDevice *xendev)
{
struct XenBlkDev *blkdev = container_of(xendev, struct XenBlkDev, xendev);
if (xenstore_read_fe_int(&blkdev->xendev, "ring-ref", &blkdev->ring_ref) == -1)
return -1;
if (xenstore_read_fe_int(&blkdev->xendev, "event-channel",
&blkdev->xendev.remote_port) == -1)
return -1;
blkdev->protocol = BLKIF_PROTOCOL_NATIVE;
if (blkdev->xendev.protocol) {
if (strcmp(blkdev->xendev.protocol, XEN_IO_PROTO_ABI_X86_32) == 0)
blkdev->protocol = BLKIF_PROTOCOL_X86_32;
if (strcmp(blkdev->xendev.protocol, XEN_IO_PROTO_ABI_X86_64) == 0)
blkdev->protocol = BLKIF_PROTOCOL_X86_64;
}
blkdev->sring = xc_gnttab_map_grant_ref(blkdev->xendev.gnttabdev,
blkdev->xendev.dom,
blkdev->ring_ref,
PROT_READ | PROT_WRITE);
if (!blkdev->sring)
return -1;
blkdev->cnt_map++;
switch (blkdev->protocol) {
case BLKIF_PROTOCOL_NATIVE:
{
blkif_sring_t *sring_native = blkdev->sring;
BACK_RING_INIT(&blkdev->rings.native, sring_native, XC_PAGE_SIZE);
break;
}
case BLKIF_PROTOCOL_X86_32:
{
blkif_x86_32_sring_t *sring_x86_32 = blkdev->sring;
BACK_RING_INIT(&blkdev->rings.x86_32_part, sring_x86_32, XC_PAGE_SIZE);
break;
}
case BLKIF_PROTOCOL_X86_64:
{
blkif_x86_64_sring_t *sring_x86_64 = blkdev->sring;
BACK_RING_INIT(&blkdev->rings.x86_64_part, sring_x86_64, XC_PAGE_SIZE);
break;
}
}
xen_be_bind_evtchn(&blkdev->xendev);
xen_be_printf(&blkdev->xendev, 1, "ok: proto %s, ring-ref %d, "
"remote port %d, local port %d\n",
blkdev->xendev.protocol, blkdev->ring_ref,
blkdev->xendev.remote_port, blkdev->xendev.local_port);
return 0;
}
static int net_connect(struct XenDevice *xendev)
{
struct XenNetDev *netdev = container_of(xendev, struct XenNetDev, xendev);
int rx_copy;
if (xenstore_read_fe_int(&netdev->xendev, "tx-ring-ref",
&netdev->tx_ring_ref) == -1) {
return -1;
}
if (xenstore_read_fe_int(&netdev->xendev, "rx-ring-ref",
&netdev->rx_ring_ref) == -1) {
return 1;
}
if (xenstore_read_fe_int(&netdev->xendev, "event-channel",
&netdev->xendev.remote_port) == -1) {
return -1;
}
if (xenstore_read_fe_int(&netdev->xendev, "request-rx-copy", &rx_copy) == -1) {
rx_copy = 0;
}
if (rx_copy == 0) {
xen_be_printf(&netdev->xendev, 0, "frontend doesn't support rx-copy.\n");
return -1;
}
netdev->txs = xc_gnttab_map_grant_ref(netdev->xendev.gnttabdev,
netdev->xendev.dom,
netdev->tx_ring_ref,
PROT_READ | PROT_WRITE);
if (!netdev->txs) {
return -1;
}
netdev->rxs = xc_gnttab_map_grant_ref(netdev->xendev.gnttabdev,
netdev->xendev.dom,
netdev->rx_ring_ref,
PROT_READ | PROT_WRITE);
if (!netdev->rxs) {
xc_gnttab_munmap(netdev->xendev.gnttabdev, netdev->txs, 1);
netdev->txs = NULL;
return -1;
}
BACK_RING_INIT(&netdev->tx_ring, netdev->txs, XC_PAGE_SIZE);
BACK_RING_INIT(&netdev->rx_ring, netdev->rxs, XC_PAGE_SIZE);
xen_be_bind_evtchn(&netdev->xendev);
xen_be_printf(&netdev->xendev, 1, "ok: tx-ring-ref %d, rx-ring-ref %d, "
"remote port %d, local port %d\n",
netdev->tx_ring_ref, netdev->rx_ring_ref,
netdev->xendev.remote_port, netdev->xendev.local_port);
net_tx_packets(netdev);
return 0;
}
static int input_connect(struct XenDevice *xendev)
{
struct XenInput *in = container_of(xendev, struct XenInput, c.xendev);
int rc;
if (xenstore_read_fe_int(xendev, "request-abs-pointer",
&in->abs_pointer_wanted) == -1)
in->abs_pointer_wanted = 0;
if (!in->c.ds) {
char *vfb = xenstore_read_str(NULL, "device/vfb");
if (vfb == NULL) {
/* there is no vfb, run vkbd on its own */
in->c.ds = get_displaystate();
} else {
qemu_free(vfb);
xen_be_printf(xendev, 1, "ds not set (yet)\n");
return -1;
}
}
rc = common_bind(&in->c);
if (rc != 0)
return rc;
qemu_add_kbd_event_handler(xenfb_key_event, in);
in->qmouse = qemu_add_mouse_event_handler(xenfb_mouse_event, in,
in->abs_pointer_wanted,
"Xen PVFB Mouse");
return 0;
}
static int common_bind(struct common *c)
{
uint64_t val;
xen_pfn_t mfn;
if (xenstore_read_fe_uint64(&c->xendev, "page-ref", &val) == -1)
return -1;
mfn = (xen_pfn_t)val;
assert(val == mfn);
if (xenstore_read_fe_int(&c->xendev, "event-channel", &c->xendev.remote_port) == -1)
return -1;
c->page = xenforeignmemory_map(xen_fmem, c->xendev.dom,
PROT_READ | PROT_WRITE, 1, &mfn, NULL);
if (c->page == NULL)
return -1;
xen_be_bind_evtchn(&c->xendev);
xen_pv_printf(&c->xendev, 1,
"ring mfn %"PRI_xen_pfn", remote-port %d, local-port %d\n",
mfn, c->xendev.remote_port, c->xendev.local_port);
return 0;
}
static int fb_connect(struct XenDevice *xendev)
{
struct XenFB *fb = container_of(xendev, struct XenFB, c.xendev);
struct xenfb_page *fb_page;
int videoram;
int rc;
if (xenstore_read_fe_int(xendev, "videoram", &videoram) == -1)
videoram = 0;
rc = common_bind(&fb->c);
if (rc != 0)
return rc;
fb_page = fb->c.page;
rc = xenfb_configure_fb(fb, videoram * 1024 * 1024U,
fb_page->width, fb_page->height, fb_page->depth,
fb_page->mem_length, 0, fb_page->line_length);
if (rc != 0)
return rc;
rc = xenfb_map_fb(fb);
if (rc != 0)
return rc;
#if 0 /* handled in xen_init_display() for now */
if (!fb->have_console) {
fb->c.ds = graphic_console_init(xenfb_update,
xenfb_invalidate,
NULL,
NULL,
fb);
fb->have_console = 1;
}
#endif
if (xenstore_read_fe_int(xendev, "feature-update", &fb->feature_update) == -1)
fb->feature_update = 0;
if (fb->feature_update)
xenstore_write_be_int(xendev, "request-update", 1);
xen_be_printf(xendev, 1, "feature-update=%d, videoram=%d\n",
fb->feature_update, videoram);
return 0;
}
static int common_bind(struct common *c)
{
int mfn;
if (xenstore_read_fe_int(&c->xendev, "page-ref", &mfn) == -1)
return -1;
if (xenstore_read_fe_int(&c->xendev, "event-channel", &c->xendev.remote_port) == -1)
return -1;
c->page = xc_map_foreign_range(xen_xc, c->xendev.dom,
XC_PAGE_SIZE,
PROT_READ | PROT_WRITE, mfn);
if (c->page == NULL)
return -1;
xen_be_bind_evtchn(&c->xendev);
xen_be_printf(&c->xendev, 1, "ring mfn %d, remote-port %d, local-port %d\n",
mfn, c->xendev.remote_port, c->xendev.local_port);
return 0;
}
static void input_connected(struct XenDevice *xendev)
{
struct XenInput *in = container_of(xendev, struct XenInput, c.xendev);
if (xenstore_read_fe_int(xendev, "request-abs-pointer",
&in->abs_pointer_wanted) == -1) {
in->abs_pointer_wanted = 0;
}
if (in->qmouse) {
qemu_remove_mouse_event_handler(in->qmouse);
}
in->qmouse = qemu_add_mouse_event_handler(xenfb_mouse_event, in,
in->abs_pointer_wanted,
"Xen PVFB Mouse");
}
static int input_connect(struct XenDevice *xendev)
{
struct XenInput *in = container_of(xendev, struct XenInput, c.xendev);
int rc;
if (xenstore_read_fe_int(xendev, "request-abs-pointer",
&in->abs_pointer_wanted) == -1)
in->abs_pointer_wanted = 0;
rc = common_bind(&in->c);
if (rc != 0)
return rc;
qemu_add_kbd_event_handler(xenfb_key_event, in);
in->qmouse = qemu_add_mouse_event_handler(xenfb_mouse_event, in,
in->abs_pointer_wanted,
"Xen PVFB Mouse");
return 0;
}
static int xen_9pfs_connect(struct XenLegacyDevice *xendev)
{
Error *err = NULL;
int i;
Xen9pfsDev *xen_9pdev = container_of(xendev, Xen9pfsDev, xendev);
V9fsState *s = &xen_9pdev->state;
QemuOpts *fsdev;
if (xenstore_read_fe_int(&xen_9pdev->xendev, "num-rings",
&xen_9pdev->num_rings) == -1 ||
xen_9pdev->num_rings > MAX_RINGS || xen_9pdev->num_rings < 1) {
return -1;
}
xen_9pdev->rings = g_new0(Xen9pfsRing, xen_9pdev->num_rings);
for (i = 0; i < xen_9pdev->num_rings; i++) {
char *str;
int ring_order;
xen_9pdev->rings[i].priv = xen_9pdev;
xen_9pdev->rings[i].evtchn = -1;
xen_9pdev->rings[i].local_port = -1;
str = g_strdup_printf("ring-ref%u", i);
if (xenstore_read_fe_int(&xen_9pdev->xendev, str,
&xen_9pdev->rings[i].ref) == -1) {
g_free(str);
goto out;
}
g_free(str);
str = g_strdup_printf("event-channel-%u", i);
if (xenstore_read_fe_int(&xen_9pdev->xendev, str,
&xen_9pdev->rings[i].evtchn) == -1) {
g_free(str);
goto out;
}
g_free(str);
xen_9pdev->rings[i].intf =
xen_be_map_grant_ref(&xen_9pdev->xendev,
xen_9pdev->rings[i].ref,
PROT_READ | PROT_WRITE);
if (!xen_9pdev->rings[i].intf) {
goto out;
}
ring_order = xen_9pdev->rings[i].intf->ring_order;
if (ring_order > MAX_RING_ORDER) {
goto out;
}
xen_9pdev->rings[i].ring_order = ring_order;
xen_9pdev->rings[i].data =
xen_be_map_grant_refs(&xen_9pdev->xendev,
xen_9pdev->rings[i].intf->ref,
(1 << ring_order),
PROT_READ | PROT_WRITE);
if (!xen_9pdev->rings[i].data) {
goto out;
}
xen_9pdev->rings[i].ring.in = xen_9pdev->rings[i].data;
xen_9pdev->rings[i].ring.out = xen_9pdev->rings[i].data +
XEN_FLEX_RING_SIZE(ring_order);
xen_9pdev->rings[i].bh = qemu_bh_new(xen_9pfs_bh, &xen_9pdev->rings[i]);
xen_9pdev->rings[i].out_cons = 0;
xen_9pdev->rings[i].out_size = 0;
xen_9pdev->rings[i].inprogress = false;
xen_9pdev->rings[i].evtchndev = xenevtchn_open(NULL, 0);
if (xen_9pdev->rings[i].evtchndev == NULL) {
goto out;
}
qemu_set_cloexec(xenevtchn_fd(xen_9pdev->rings[i].evtchndev));
xen_9pdev->rings[i].local_port = xenevtchn_bind_interdomain
(xen_9pdev->rings[i].evtchndev,
xendev->dom,
xen_9pdev->rings[i].evtchn);
if (xen_9pdev->rings[i].local_port == -1) {
xen_pv_printf(xendev, 0,
"xenevtchn_bind_interdomain failed port=%d\n",
xen_9pdev->rings[i].evtchn);
goto out;
}
xen_pv_printf(xendev, 2, "bind evtchn port %d\n", xendev->local_port);
qemu_set_fd_handler(xenevtchn_fd(xen_9pdev->rings[i].evtchndev),
xen_9pfs_evtchn_event, NULL, &xen_9pdev->rings[i]);
}
xen_9pdev->security_model = xenstore_read_be_str(xendev, "security_model");
xen_9pdev->path = xenstore_read_be_str(xendev, "path");
xen_9pdev->id = s->fsconf.fsdev_id =
g_strdup_printf("xen9p%d", xendev->dev);
xen_9pdev->tag = s->fsconf.tag = xenstore_read_fe_str(xendev, "tag");
fsdev = qemu_opts_create(qemu_find_opts("fsdev"),
s->fsconf.tag,
1, NULL);
qemu_opt_set(fsdev, "fsdriver", "local", NULL);
qemu_opt_set(fsdev, "path", xen_9pdev->path, NULL);
qemu_opt_set(fsdev, "security_model", xen_9pdev->security_model, NULL);
qemu_opts_set_id(fsdev, s->fsconf.fsdev_id);
qemu_fsdev_add(fsdev, &err);
if (err) {
error_report_err(err);
}
v9fs_device_realize_common(s, &xen_9p_transport, NULL);
return 0;
out:
xen_9pfs_free(xendev);
return -1;
}
