Re: [PATCH 3/3] kvm tools, ui: Add support for SDL framebuffer output target

[Ingo Molnar <mingo@elte.hu>]

* Ingo Molnar <mingo@elte.hu> wrote:

> here is how the slowdown looks like with printk timestamps:
> 
> [    0.677000] uvesafb: failed to execute /sbin/v86d
> [    0.678000] uvesafb: make sure that the v86d helper is installed and executable
> [    0.679000] uvesafb: Getting VBE info block failed (eax=0x4f00, err=-2)
> [    0.680000] uvesafb: vbe_init() failed with -22
> [    0.680000] uvesafb: probe of uvesafb.0 failed with error -22
> [    0.681000] vesafb: mode is 640x480x32, linelength=2560, pages=0
> [    0.682000] vesafb: scrolling: redraw
> [    0.682000] vesafb: Truecolor: size=8:8:8:8, shift=24:0:8:16
> [    0.683000] vesafb: framebuffer at 0xd0000000, mapped to 0xffffc90000900000, using 1200k, total 1200k
> [    1.855000] Console: switching to colour frame buffer device 80x30
> [    3.635000] fb0: VESA VGA frame buffer device
> [    4.268000] virtio-pci 0000:00:01.0: enabling device (0000 -> 0001)
> �[    4.269000] Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled
> [    4.535000] serial8250: ttyS0 at I/O 0x3f8 (irq = 0) is a 16550A
> �[    7.270000] serial8250: ttyS1 at I/O 0x2f8 (irq = 0) is a 16550A
> �[    8.190000] serial8250: ttyS2 at I/O 0x3e8 (irq = 0) is a 16550A
> [    8.818000] Non-volatile memory driver v1.3
> [    9.419000] Linux agpgart interface v0.103
> [    9.420000] [drm] Initialized drm 1.1.0 20060810
> [    9.420000] [drm:i915_init] *ERROR* drm/i915 can't work without intel_agp module!
> 
> so the badness starts after the 'framebuffer mapped' message.

btw., we never execute ->start():

diff --git a/tools/kvm/ui/sdl.c b/tools/kvm/ui/sdl.c
index 8bc3f68..43734e4 100644
--- a/tools/kvm/ui/sdl.c
+++ b/tools/kvm/ui/sdl.c
@@ -35,6 +35,8 @@ static void *sdl__thread(void *p)
 	if (!screen)
 		die("Unable to set SDL video mode");
 
+	die("die!");
+
 	for (;;) {
 		SDL_BlitSurface(guest_screen, NULL, screen, NULL);
 		SDL_Flip(screen);

I'll send you my .config and bzImage in private.

Thanks,

	Ingo