arch/x86/xen/vga.c
Source file repositories/reference/linux-study-clean/arch/x86/xen/vga.c
File Facts
- System
- Linux kernel
- Corpus path
arch/x86/xen/vga.c- Extension
.c- Size
- 2719 bytes
- Lines
- 78
- Domain
- Architecture Layer
- Bucket
- arch/x86
- Inferred role
- Architecture Layer: implementation source
- Status
- source implementation candidate
Why This File Exists
CPU and platform-specific kernel glue: boot entry, traps, syscall entry, interrupts, page tables, context switch, and low-level barriers.
- CPU and platform-specific kernel glue: boot entry, traps, syscall entry, interrupts, page tables, context switch, and low-level barriers.
- Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.
Dependency Surface
linux/screen_info.hlinux/init.hasm/setup.hxen/interface/xen.hxen-ops.h
Detected Declarations
function xen_init_vga
Annotated Snippet
if (info->video_type == XEN_VGATYPE_EFI_LFB) {
screen_info->orig_video_isVGA = VIDEO_TYPE_EFI;
break;
}
if (size >= offsetof(struct dom0_vga_console_info,
u.vesa_lfb.mode_attrs)
+ sizeof(info->u.vesa_lfb.mode_attrs))
screen_info->vesa_attributes = info->u.vesa_lfb.mode_attrs;
break;
}
}
Annotation
- Immediate include surface: `linux/screen_info.h`, `linux/init.h`, `asm/setup.h`, `xen/interface/xen.h`, `xen-ops.h`.
- Detected declarations: `function xen_init_vga`.
- Atlas domain: Architecture Layer / arch/x86.
- Implementation status: source implementation candidate.
Implementation Notes
- This generated page is the file-by-file coverage layer; curated subsystem chapters should link here when they synthesize a multi-file control flow.
- Core OS pages should be promoted from atlas-only to deep-reviewed when they explain data structures, invariants, locking, lifecycle, and C implementation snippets.
- Driver-family pages are intentionally pattern-oriented unless they are part of the selected PCIe/NVMe representative device path.