1 // SPDX-License-Identifier: GPL-2.0 1
2 #include <linux/screen_info.h>
3 #include <linux/init.h>
4
5 #include <asm/setup.h>
6
7 #include <xen/interface/xen.h>
8
9 #include "xen-ops.h"
10
11 void __init xen_init_vga(const struct dom0_vga
12 struct screen_info *s
13 {
14 /* This is drawn from a dump from vgac
15 * standard Linux. */
16 screen_info->orig_video_mode = 3;
17 screen_info->orig_video_isVGA = 1;
18 screen_info->orig_video_lines = 25;
19 screen_info->orig_video_cols = 80;
20 screen_info->orig_video_ega_bx = 3;
21 screen_info->orig_video_points = 16;
22 screen_info->orig_y = screen_info->ori
23
24 switch (info->video_type) {
25 case XEN_VGATYPE_TEXT_MODE_3:
26 if (size < offsetof(struct dom
27 + sizeof(info->u.text_mode
28 break;
29 screen_info->orig_video_lines
30 screen_info->orig_video_cols =
31 screen_info->orig_x = info->u.
32 screen_info->orig_y = info->u.
33 screen_info->orig_video_points
34 info->u.text_mode_3.fo
35 break;
36
37 case XEN_VGATYPE_EFI_LFB:
38 case XEN_VGATYPE_VESA_LFB:
39 if (size < offsetof(struct dom
40 u.vesa_lfb
41 break;
42 screen_info->orig_video_isVGA
43 screen_info->lfb_width = info-
44 screen_info->lfb_height = info
45 screen_info->lfb_depth = info-
46 screen_info->lfb_base = info->
47 screen_info->lfb_size = info->
48 screen_info->lfb_linelength =
49 screen_info->red_size = info->
50 screen_info->red_pos = info->u
51 screen_info->green_size = info
52 screen_info->green_pos = info-
53 screen_info->blue_size = info-
54 screen_info->blue_pos = info->
55 screen_info->rsvd_size = info-
56 screen_info->rsvd_pos = info->
57
58 if (size >= offsetof(struct do
59 u.vesa_lf
60 + sizeof(info->u.vesa_lfb.
61 && info->u.vesa_lfb.ext_lf
62 screen_info->ext_lfb_b
63 screen_info->capabilit
64 }
65
66 if (info->video_type == XEN_VG
67 screen_info->orig_vide
68 break;
69 }
70
71 if (size >= offsetof(struct do
72 u.vesa_lf
73 + sizeof(info->u.vesa_lfb.
74 screen_info->vesa_attr
75 break;
76 }
77 }
78
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