Also, run make and make install in $XEN_ROOT/tools/fs-back
-To run
-======
-
-mkdir -p /exports/usr/share/qemu
-ln -s /usr/share/qemu/keymaps /exports/usr/share/qemu
-/usr/sbin/fs-backend &
-
+General Configuration
+=====================
In your HVM config "hvmconfig",
-- use VNC, set vnclisten to "172.30.206.1" for instance. Do not use a host name
-as Mini-OS does not have a name resolver. Do not use 127.0.0.1 since then you
-will not be able to connect to it.
-
-vnc = 1
-vnclisten = "172.30.206.1"
-
- use /usr/lib/xen/bin/stubdom-dm as dm script
device_model = '/usr/lib/xen/bin/stubdom-dm'
- comment the disk statement:
+
#disk = [ 'file:/tmp/install.iso,hdc:cdrom,r', 'phy:/dev/sda6,hda,w', 'file:/tmp/test,hdb,r' ]
-Create /etc/xen/stubdom-hvmconfig (where "hvmconfig" is your HVM guest domain
-name) with
+
+Create /etc/xen/stubdom-hvmconfig (where "hvmconfig" is the name of your HVM
+guest) with
kernel = "/usr/lib/xen/boot/stubdom.gz"
-vif = [ 'ip=172.30.206.1', 'ip=10.0.1.1,mac=aa:00:00:12:23:34']
+vif = [ '', 'ip=10.0.1.1,mac=aa:00:00:12:23:34']
disk = [ 'file:/tmp/install.iso,hdc:cdrom,r', 'phy:/dev/sda6,hda,w', 'file:/tmp/test,hdb,r' ]
where
-- 172.30.206.1 is the IP for vnc,
+- the first vif ('') is reserved for VNC (see below)
- 'ip=10.0.1.1,mac= etc...' is the same net configuration as in the hvmconfig
script,
- and disk = is the same block configuration as in the hvmconfig script.
+
+Display Configuration
+=====================
+
+There are three posibilities
+
+* Using SDL
+
+In hvmconfig, disable vnc:
+
+vnc = 0
+
+In stubdom-hvmconfig, set a vfb:
+
+vfb = [ 'type=sdl' ]
+
+* Using a VNC server in the stub domain
+
+In hvmconfig, set vnclisten to "172.30.206.1" for instance. Do not use a host
+name as Mini-OS does not have a name resolver. Do not use 127.0.0.1 since then
+you will not be able to connect to it.
+
+vnc = 1
+vnclisten = "172.30.206.1"
+
+In stubdom-hvmconfig, fill the reserved vif with the same IP, for instance:
+
+vif = [ 'ip=172.30.206.1', 'ip=10.0.1.1,mac=aa:00:00:12:23:34']
+
+* Using a VNC server in dom0
+
+In hvmconfig, disable vnc:
+
+vnc = 0
+
+In stubdom-hvmconfig, set a vfb:
+
+vfb = [ 'type=vnc' ]
+
+and any other parameter as wished.
+
+To run
+======
+
+mkdir -p /exports/usr/share/qemu
+ln -s /usr/share/qemu/keymaps /exports/usr/share/qemu
+/usr/sbin/fs-backend &
+
+xm create hvmconfig
#include "xenfb.h"
+#ifdef CONFIG_STUBDOM
+#include <semaphore.h>
+#include <sched.h>
+#include <fbfront.h>
+#endif
+
#ifndef BTN_LEFT
#define BTN_LEFT 0x110 /* from <linux/input.h> */
#endif
dpy_update(xenfb->ds, x, y, w, h);
}
-/* QEMU display state changed, so refresh the framebuffer copy */
-/* XXX - can we optimize this, or the next func at all ? */
+/* Periodic update of display, no need for any in our case */
static void xenfb_update(void *opaque)
{
struct xenfb *xenfb = opaque;
- xenfb_guest_copy(xenfb, 0, 0, xenfb->width, xenfb->height);
}
/* QEMU display state changed, so refresh the framebuffer copy */
return 0;
}
+#ifdef CONFIG_STUBDOM
+static struct semaphore kbd_sem = __SEMAPHORE_INITIALIZER(kbd_sem, 0);
+static struct kbdfront_dev *kbd_dev;
+static char *kbd_path, *fb_path;
+
+static unsigned char linux2scancode[KEY_MAX + 1];
+
+#define WIDTH 1024
+#define HEIGHT 768
+#define DEPTH 32
+#define LINESIZE (1280 * (DEPTH / 8))
+#define MEMSIZE (LINESIZE * HEIGHT)
+
+int xenfb_connect_vkbd(const char *path)
+{
+ kbd_path = strdup(path);
+ return 0;
+}
+
+int xenfb_connect_vfb(const char *path)
+{
+ fb_path = strdup(path);
+ return 0;
+}
+
+static void xenfb_pv_update(DisplayState *s, int x, int y, int w, int h)
+{
+ struct fbfront_dev *fb_dev = s->opaque;
+ fbfront_update(fb_dev, x, y, w, h);
+}
+
+static void xenfb_pv_resize(DisplayState *s, int w, int h)
+{
+ struct fbfront_dev *fb_dev = s->opaque;
+ fprintf(stderr,"resize to %dx%d required\n", w, h);
+ s->width = w;
+ s->height = h;
+ /* TODO: send resize event if supported */
+ memset(s->data, 0, MEMSIZE);
+ fbfront_update(fb_dev, 0, 0, WIDTH, HEIGHT);
+}
+
+static void xenfb_pv_colourdepth(DisplayState *s, int depth)
+{
+ /* TODO: send redepth event if supported */
+ fprintf(stderr,"redepth to %d required\n", depth);
+}
+
+static void xenfb_kbd_handler(void *opaque)
+{
+#define KBD_NUM_BATCH 64
+ union xenkbd_in_event buf[KBD_NUM_BATCH];
+ int n, i;
+ DisplayState *s = opaque;
+ static int buttons;
+ static int x, y, z;
+
+ n = kbdfront_receive(kbd_dev, buf, KBD_NUM_BATCH);
+ for (i = 0; i < n; i++) {
+ switch (buf[i].type) {
+
+ case XENKBD_TYPE_MOTION:
+ fprintf(stderr, "FB backend sent us relative mouse motion event!\n");
+ break;
+
+ case XENKBD_TYPE_POS:
+ {
+ int new_x = buf[i].pos.abs_x;
+ int new_y = buf[i].pos.abs_y;
+ int new_z = buf[i].pos.abs_z;
+ if (new_x >= s->width)
+ new_x = s->width - 1;
+ if (new_y >= s->height)
+ new_y = s->height - 1;
+ if (kbd_mouse_is_absolute()) {
+ kbd_mouse_event(
+ new_x * 0x7FFF / (s->width - 1),
+ new_y * 0x7FFF / (s->height - 1),
+ new_z,
+ buttons);
+ } else {
+ kbd_mouse_event(
+ new_x - x,
+ new_y - y,
+ new_z - z,
+ buttons);
+ }
+ x = new_x;
+ y = new_y;
+ z = new_z;
+ break;
+ }
+
+ case XENKBD_TYPE_KEY:
+ {
+ int keycode = buf[i].key.keycode;
+ int button = 0;
+
+ if (keycode == BTN_LEFT)
+ button = MOUSE_EVENT_LBUTTON;
+ else if (keycode == BTN_RIGHT)
+ button = MOUSE_EVENT_RBUTTON;
+ else if (keycode == BTN_MIDDLE)
+ button = MOUSE_EVENT_MBUTTON;
+
+ if (button) {
+ if (buf[i].key.pressed)
+ buttons |= button;
+ else
+ buttons &= ~button;
+ if (kbd_mouse_is_absolute())
+ kbd_mouse_event(
+ x * 0x7FFF / s->width,
+ y * 0x7FFF / s->height,
+ z,
+ buttons);
+ else
+ kbd_mouse_event(0, 0, 0, buttons);
+ } else {
+ int scancode = linux2scancode[keycode];
+ if (!scancode) {
+ fprintf(stderr, "Can't convert keycode %x to scancode\n", keycode);
+ break;
+ }
+ if (scancode & 0x80) {
+ kbd_put_keycode(0xe0);
+ scancode &= 0x7f;
+ }
+ if (!buf[i].key.pressed)
+ scancode |= 0x80;
+ kbd_put_keycode(scancode);
+ }
+ break;
+ }
+ }
+ }
+}
+
+static void xenfb_pv_refresh(DisplayState *ds)
+{
+ vga_hw_update();
+}
+
+static void kbdfront_thread(void *p)
+{
+ int scancode, keycode;
+ kbd_dev = init_kbdfront(p, 1);
+ if (!kbd_dev) {
+ fprintf(stderr,"can't open keyboard\n");
+ exit(1);
+ }
+ up(&kbd_sem);
+ for (scancode = 0; scancode < 128; scancode++) {
+ keycode = atkbd_set2_keycode[atkbd_unxlate_table[scancode]];
+ linux2scancode[keycode] = scancode;
+ keycode = atkbd_set2_keycode[atkbd_unxlate_table[scancode] | 0x80];
+ linux2scancode[keycode] = scancode | 0x80;
+ }
+}
+
+int xenfb_pv_display_init(DisplayState *ds)
+{
+ void *data;
+ struct fbfront_dev *fb_dev;
+ int kbd_fd;
+
+ if (!fb_path || !kbd_path)
+ return -1;
+
+ create_thread("kbdfront", kbdfront_thread, (void*) kbd_path);
+
+ data = qemu_memalign(PAGE_SIZE, VGA_RAM_SIZE);
+ fb_dev = init_fbfront(fb_path, data, WIDTH, HEIGHT, DEPTH, LINESIZE, MEMSIZE);
+ if (!fb_dev) {
+ fprintf(stderr,"can't open frame buffer\n");
+ exit(1);
+ }
+ free(fb_path);
+
+ down(&kbd_sem);
+ free(kbd_path);
+
+ kbd_fd = kbdfront_open(kbd_dev);
+ qemu_set_fd_handler(kbd_fd, xenfb_kbd_handler, NULL, ds);
+
+ ds->data = data;
+ ds->linesize = LINESIZE;
+ ds->depth = DEPTH;
+ ds->bgr = 0;
+ ds->width = WIDTH;
+ ds->height = HEIGHT;
+ ds->dpy_update = xenfb_pv_update;
+ ds->dpy_resize = xenfb_pv_resize;
+ ds->dpy_colourdepth = NULL; //xenfb_pv_colourdepth;
+ ds->dpy_refresh = xenfb_pv_refresh;
+ ds->opaque = fb_dev;
+ return 0;
+}
+#endif
+
/*
* Local variables:
* c-indent-level: 8
projects / xen.git / commitdiff