72 lines
2.0 KiB
C
72 lines
2.0 KiB
C
#pragma once
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// boot_info.h - shared between bootx64.efi and kernel.exe
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// The bootloader fills this structure and passes a pointer to KernelMain.
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#include <stdint.h>
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#include <ntlite/memory_map.h>
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#define BOOT_INFO_MAGIC 0x424F4F54494E464FULL /* 'BOOTINFO' */
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#define MAX_BOOT_MODULES 32
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#define BOOT_TIME_FLAG_VALID 0x0001u
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#define BOOT_TIME_FLAG_TZ_KNOWN 0x0002u
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#define BOOT_TIME_FLAG_UEFI 0x0004u
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#define BOOT_TIME_FLAG_FALLBACK 0x0008u
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#define BOOT_TIME_FLAG_RTC 0x0010u
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#define BOOT_TIME_UNSPECIFIED_TZ 2047
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typedef struct BOOT_TIME {
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uint16_t Year;
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uint8_t Month;
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uint8_t Day;
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uint8_t Hour;
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uint8_t Minute;
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uint8_t Second;
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uint8_t Daylight;
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uint32_t Nanosecond;
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int16_t TimeZoneMinutes;
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uint16_t Flags;
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uint32_t Reserved;
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} BOOT_TIME;
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typedef struct BOOT_MODULE {
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char Name[32]; /* e.g. "hal.dll", "ata.sys" */
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uintptr_t VirtBase; /* Virtual address (mapped) */
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uintptr_t PhysBase; /* Raw physical address (file) */
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size_t ImageSize; /* File size / Image size */
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} BOOT_MODULE;
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typedef struct BOOT_INFO {
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uint64_t Magic;
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/* Physical memory. */
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MEMORY_MAP MemoryMap;
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/* GOP framebuffer. */
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uintptr_t FramebufferBase;
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uint32_t FramebufferWidth;
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uint32_t FramebufferHeight;
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uint32_t FramebufferStride; /* pixels per row */
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/* Loaded modules. */
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BOOT_MODULE Modules[MAX_BOOT_MODULES];
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uint32_t ModuleCount;
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uint32_t _pad1;
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char CommandLine[64];
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/* ACPI RSDP physical address (for APIC, HPET). */
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uintptr_t RsdpPhysical;
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/* Direct physical window base - always 0xFFFF880000000000. */
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uintptr_t PhysicalMapBase;
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/* Reserved low-memory page for the AP startup trampoline, or zero. */
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uintptr_t ApTrampolinePhys;
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/* From boot.ini */
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uint32_t Debug;
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/* Firmware wall-clock snapshot taken before ExitBootServices. */
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BOOT_TIME BootTime;
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} BOOT_INFO;
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