1 #include <linux/screen_info.h> 2 #include <linux/init.h> 3 4 #include <asm/bootparam.h> 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_console_info *info, size_t size) 12 { 13 struct screen_info *screen_info = &boot_params.screen_info; 14 15 /* This is drawn from a dump from vgacon:startup in 16 * standard Linux. */ 17 screen_info->orig_video_mode = 3; 18 screen_info->orig_video_isVGA = 1; 19 screen_info->orig_video_lines = 25; 20 screen_info->orig_video_cols = 80; 21 screen_info->orig_video_ega_bx = 3; 22 screen_info->orig_video_points = 16; 23 screen_info->orig_y = screen_info->orig_video_lines - 1; 24 25 switch (info->video_type) { 26 case XEN_VGATYPE_TEXT_MODE_3: 27 if (size < offsetof(struct dom0_vga_console_info, u.text_mode_3) 28 + sizeof(info->u.text_mode_3)) 29 break; 30 screen_info->orig_video_lines = info->u.text_mode_3.rows; 31 screen_info->orig_video_cols = info->u.text_mode_3.columns; 32 screen_info->orig_x = info->u.text_mode_3.cursor_x; 33 screen_info->orig_y = info->u.text_mode_3.cursor_y; 34 screen_info->orig_video_points = 35 info->u.text_mode_3.font_height; 36 break; 37 38 case XEN_VGATYPE_EFI_LFB: 39 case XEN_VGATYPE_VESA_LFB: 40 if (size < offsetof(struct dom0_vga_console_info, 41 u.vesa_lfb.gbl_caps)) 42 break; 43 screen_info->orig_video_isVGA = VIDEO_TYPE_VLFB; 44 screen_info->lfb_width = info->u.vesa_lfb.width; 45 screen_info->lfb_height = info->u.vesa_lfb.height; 46 screen_info->lfb_depth = info->u.vesa_lfb.bits_per_pixel; 47 screen_info->lfb_base = info->u.vesa_lfb.lfb_base; 48 screen_info->lfb_size = info->u.vesa_lfb.lfb_size; 49 screen_info->lfb_linelength = info->u.vesa_lfb.bytes_per_line; 50 screen_info->red_size = info->u.vesa_lfb.red_size; 51 screen_info->red_pos = info->u.vesa_lfb.red_pos; 52 screen_info->green_size = info->u.vesa_lfb.green_size; 53 screen_info->green_pos = info->u.vesa_lfb.green_pos; 54 screen_info->blue_size = info->u.vesa_lfb.blue_size; 55 screen_info->blue_pos = info->u.vesa_lfb.blue_pos; 56 screen_info->rsvd_size = info->u.vesa_lfb.rsvd_size; 57 screen_info->rsvd_pos = info->u.vesa_lfb.rsvd_pos; 58 59 if (info->video_type == XEN_VGATYPE_EFI_LFB) { 60 screen_info->orig_video_isVGA = VIDEO_TYPE_EFI; 61 break; 62 } 63 64 if (size >= offsetof(struct dom0_vga_console_info, 65 u.vesa_lfb.gbl_caps) 66 + sizeof(info->u.vesa_lfb.gbl_caps)) 67 screen_info->capabilities = info->u.vesa_lfb.gbl_caps; 68 if (size >= offsetof(struct dom0_vga_console_info, 69 u.vesa_lfb.mode_attrs) 70 + sizeof(info->u.vesa_lfb.mode_attrs)) 71 screen_info->vesa_attributes = info->u.vesa_lfb.mode_attrs; 72 break; 73 } 74 } 75