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xenfb: remove xen_init_display "temporary" hack 

Initialize xenfb properly, as all other backends, from its own
"initialise" function.

Remove the dependency of vkbd on vfb: use qemu_console_lookup_by_index
to find the principal console (to get the size of the screen) instead of
relying on a vfb backend to be available (which adds a dependency
between the two).

Signed-off-by: Stefano Stabellini <sstabellini@kernel.org>
Reviewed-by: Paul Durrant <paul.durrant@citrix.com>
This commit is contained in:
Stefano Stabellini 2017-07-06 16:48:12 -07:00
parent b113658675
commit 9f2130f58d
3 changed files with 18 additions and 68 deletions
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81
hw/display/xenfb.c
View File

@ -46,7 +46,6 @@
struct common {
struct XenDevice xendev; /* must be first */
void *page;
QemuConsole *con;
};
struct XenInput {
@ -61,6 +60,7 @@ struct XenInput {
struct XenFB {
struct common c;
QemuConsole *con;
size_t fb_len;
int row_stride;
int depth;
@ -71,7 +71,6 @@ struct XenFB {
int fbpages;
int feature_update;
int bug_trigger;
int have_console;
int do_resize;
struct {
@ -80,6 +79,7 @@ struct XenFB {
int up_count;
int up_fullscreen;
};
static const GraphicHwOps xenfb_ops;
/* -------------------------------------------------------------------- */
@ -306,10 +306,18 @@ static void xenfb_mouse_event(void *opaque,
int dx, int dy, int dz, int button_state)
{
struct XenInput *xenfb = opaque;
DisplaySurface *surface = qemu_console_surface(xenfb->c.con);
int dw = surface_width(surface);
int dh = surface_height(surface);
int i;
QemuConsole *con = qemu_console_lookup_by_index(0);
DisplaySurface *surface;
int dw, dh, i;
if (!con) {
xen_pv_printf(&xenfb->c.xendev, 0, "No QEMU console available");
return;
}
surface = qemu_console_surface(con);
dw = surface_width(surface);
dh = surface_height(surface);
trace_xenfb_mouse_event(opaque, dx, dy, dz, button_state,
xenfb->abs_pointer_wanted);
@ -344,11 +352,6 @@ static int input_initialise(struct XenDevice *xendev)
struct XenInput *in = container_of(xendev, struct XenInput, c.xendev);
int rc;
if (!in->c.con) {
xen_pv_printf(xendev, 1, "ds not set (yet)\n");
return -1;
}
rc = common_bind(&in->c);
if (rc != 0)
return rc;
@ -608,7 +611,7 @@ static int xenfb_configure_fb(struct XenFB *xenfb, size_t fb_len_lim,
*/
static void xenfb_guest_copy(struct XenFB *xenfb, int x, int y, int w, int h)
{
DisplaySurface *surface = qemu_console_surface(xenfb->c.con);
DisplaySurface *surface = qemu_console_surface(xenfb->con);
int line, oops = 0;
int bpp = surface_bits_per_pixel(surface);
int linesize = surface_stride(surface);
@ -642,7 +645,7 @@ static void xenfb_guest_copy(struct XenFB *xenfb, int x, int y, int w, int h)
xen_pv_printf(&xenfb->c.xendev, 0, "%s: oops: convert %d -> %d bpp?\n",
__FUNCTION__, xenfb->depth, bpp);
dpy_gfx_update(xenfb->c.con, x, y, w, h);
dpy_gfx_update(xenfb->con, x, y, w, h);
}
#ifdef XENFB_TYPE_REFRESH_PERIOD
@ -728,7 +731,7 @@ static void xenfb_update(void *opaque)
surface = qemu_create_displaysurface(xenfb->width, xenfb->height);
break;
}
dpy_gfx_replace_surface(xenfb->c.con, surface);
dpy_gfx_replace_surface(xenfb->con, surface);
xen_pv_printf(&xenfb->c.xendev, 1,
"update: resizing: %dx%d @ %d bpp%s\n",
xenfb->width, xenfb->height, xenfb->depth,
@ -877,16 +880,7 @@ static int fb_initialise(struct XenDevice *xendev)
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
fb->con = graphic_console_init(NULL, 0, &xenfb_ops, fb);
if (xenstore_read_fe_int(xendev, "feature-update", &fb->feature_update) == -1)
fb->feature_update = 0;
@ -972,42 +966,3 @@ static const GraphicHwOps xenfb_ops = {
.gfx_update = xenfb_update,
.update_interval = xenfb_update_interval,
};
/*
* FIXME/TODO: Kill this.
* Temporary needed while DisplayState reorganization is in flight.
*/
void xen_init_display(int domid)
{
struct XenDevice *xfb, *xin;
struct XenFB *fb;
struct XenInput *in;
int i = 0;
wait_more:
i++;
main_loop_wait(true);
xfb = xen_pv_find_xendev("vfb", domid, 0);
xin = xen_pv_find_xendev("vkbd", domid, 0);
if (!xfb || !xin) {
if (i < 256) {
usleep(10000);
goto wait_more;
}
xen_pv_printf(NULL, 1, "displaystate setup failed\n");
return;
}
/* vfb */
fb = container_of(xfb, struct XenFB, c.xendev);
fb->c.con = graphic_console_init(NULL, 0, &xenfb_ops, fb);
fb->have_console = 1;
/* vkbd */
in = container_of(xin, struct XenInput, c.xendev);
in->c.con = fb->c.con;
/* retry ->init() */
xen_be_check_state(xin);
xen_be_check_state(xfb);
}

3
hw/xenpv/xen_machine_pv.c
View File

@ -94,9 +94,6 @@ static void xen_init_pv(MachineState *machine)
/* config cleanup hook */
atexit(xen_config_cleanup);
/* setup framebuffer */
xen_init_display(xen_domid);
}
static void xenpv_machine_init(MachineClass *mc)

2
include/hw/xen/xen_backend.h
View File

@ -55,8 +55,6 @@ extern struct XenDevOps xen_netdev_ops; /* xen_nic.c */
extern struct XenDevOps xen_usb_ops; /* xen-usb.c */
#endif
void xen_init_display(int domid);
/* configuration (aka xenbus setup) */
void xen_config_cleanup(void);
int xen_config_dev_blk(DriveInfo *disk);