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| author | Friedemann Gerold <cinap_lenrek@felloff.net> | 2018-08-02 16:05:30 +0200 |
|---|---|---|
| committer | Simon Horman <horms@verge.net.au> | 2019-01-28 11:44:42 +0100 |
| commit | 002b608f36693665f7e5326449bb646101713e81 (patch) | |
| tree | 0372bd5d6a222c1ed32772d83e6fc1c58b0bf178 /include | |
| parent | 2880a35f38cd43b6cd118018d9bceb4c27964a84 (diff) | |
| download | kexec-tools-002b608f36693665f7e5326449bb646101713e81.tar.gz | |
multiboot-x86: pass framebuffer information when requested
When the kernel requests video information, pass it the
framebuffer information in the multiboot header from
the linux framebuffer ioctl's.
With the arch specific --reset-vga or --consolve-vga
options, purgatory will reset the framebuffer so pass
information for standard ega text mode.
Signed-off-by: Friedemann Gerold <cinap_lenrek@felloff.net>
Signed-off-by: Simon Horman <horms@verge.net.au>
Diffstat (limited to 'include')
| -rw-r--r-- | include/x86/mb_info.h | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/include/x86/mb_info.h b/include/x86/mb_info.h index 317bdfa..fd1bb1d 100644 --- a/include/x86/mb_info.h +++ b/include/x86/mb_info.h @@ -172,6 +172,28 @@ struct multiboot_info uint16_t vbe_interface_seg; uint16_t vbe_interface_off; uint16_t vbe_interface_len; + + uint64_t framebuffer_addr; + uint32_t framebuffer_pitch; + uint32_t framebuffer_width; + uint32_t framebuffer_height; + uint8_t framebuffer_bpp; + uint8_t framebuffer_type; + + union { + struct { + uint32_t framebuffer_palette_addr; + uint16_t framebuffer_palette_num_color; + }; + struct { + uint8_t framebuffer_red_field_position; + uint8_t framebuffer_red_mask_size; + uint8_t framebuffer_green_field_position; + uint8_t framebuffer_green_mask_size; + uint8_t framebuffer_blue_field_position; + uint8_t framebuffer_blue_mask_size; + }; + }; }; /* @@ -211,6 +233,11 @@ struct multiboot_info /* Is there video information? */ #define MB_INFO_VIDEO_INFO 0x00000800 +#define MB_INFO_FRAMEBUFFER_INFO 0x00001000 + +#define MB_FRAMEBUFFER_TYPE_INDEXED 0 +#define MB_FRAMEBUFFER_TYPE_RGB 1 +#define MB_FRAMEBUFFER_TYPE_EGA_TEXT 2 /* * The following value must be present in the EAX register. |