90 lines
2.9 KiB
C
90 lines
2.9 KiB
C
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/****************************************************************************
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****************************************************************************
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***
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*** This header was automatically generated from a Linux kernel header
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*** of the same name, to make information necessary for userspace to
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*** call into the kernel available to libc. It contains only constants,
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*** structures, and macros generated from the original header, and thus,
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*** contains no copyrightable information.
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***
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****************************************************************************
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****************************************************************************/
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#ifndef _ASM_SEGMENT_H
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#define _ASM_SEGMENT_H
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#define GDT_ENTRY_TLS_ENTRIES 3
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#define GDT_ENTRY_TLS_MIN 6
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#define GDT_ENTRY_TLS_MAX (GDT_ENTRY_TLS_MIN + GDT_ENTRY_TLS_ENTRIES - 1)
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#define TLS_SIZE (GDT_ENTRY_TLS_ENTRIES * 8)
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#define GDT_ENTRY_DEFAULT_USER_CS 14
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#define __USER_CS (GDT_ENTRY_DEFAULT_USER_CS * 8 + 3)
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#define GDT_ENTRY_DEFAULT_USER_DS 15
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#define __USER_DS (GDT_ENTRY_DEFAULT_USER_DS * 8 + 3)
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#define GDT_ENTRY_KERNEL_BASE 12
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#define GDT_ENTRY_KERNEL_CS (GDT_ENTRY_KERNEL_BASE + 0)
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#define __KERNEL_CS (GDT_ENTRY_KERNEL_CS * 8)
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#define GDT_ENTRY_KERNEL_DS (GDT_ENTRY_KERNEL_BASE + 1)
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#define __KERNEL_DS (GDT_ENTRY_KERNEL_DS * 8)
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#define GDT_ENTRY_TSS (GDT_ENTRY_KERNEL_BASE + 4)
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#define GDT_ENTRY_LDT (GDT_ENTRY_KERNEL_BASE + 5)
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#define GDT_ENTRY_PNPBIOS_BASE (GDT_ENTRY_KERNEL_BASE + 6)
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#define GDT_ENTRY_APMBIOS_BASE (GDT_ENTRY_KERNEL_BASE + 11)
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#define GDT_ENTRY_ESPFIX_SS (GDT_ENTRY_KERNEL_BASE + 14)
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#define __ESPFIX_SS (GDT_ENTRY_ESPFIX_SS * 8)
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#define GDT_ENTRY_PERCPU (GDT_ENTRY_KERNEL_BASE + 15)
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#define __KERNEL_PERCPU 0
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#define GDT_ENTRY_DOUBLEFAULT_TSS 31
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#define GDT_ENTRIES 32
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#define GDT_SIZE (GDT_ENTRIES * 8)
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#define GDT_ENTRY_BOOT_CS 2
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#define __BOOT_CS (GDT_ENTRY_BOOT_CS * 8)
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#define GDT_ENTRY_BOOT_DS (GDT_ENTRY_BOOT_CS + 1)
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#define __BOOT_DS (GDT_ENTRY_BOOT_DS * 8)
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#define GDT_ENTRY_PNPBIOS_CS32 (GDT_ENTRY_PNPBIOS_BASE + 0)
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#define GDT_ENTRY_PNPBIOS_CS16 (GDT_ENTRY_PNPBIOS_BASE + 1)
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#define GDT_ENTRY_PNPBIOS_DS (GDT_ENTRY_PNPBIOS_BASE + 2)
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#define GDT_ENTRY_PNPBIOS_TS1 (GDT_ENTRY_PNPBIOS_BASE + 3)
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#define GDT_ENTRY_PNPBIOS_TS2 (GDT_ENTRY_PNPBIOS_BASE + 4)
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#define PNP_CS32 (GDT_ENTRY_PNPBIOS_CS32 * 8)
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#define PNP_CS16 (GDT_ENTRY_PNPBIOS_CS16 * 8)
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#define PNP_DS (GDT_ENTRY_PNPBIOS_DS * 8)
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#define PNP_TS1 (GDT_ENTRY_PNPBIOS_TS1 * 8)
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#define PNP_TS2 (GDT_ENTRY_PNPBIOS_TS2 * 8)
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#define IDT_ENTRIES 256
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#define SEGMENT_RPL_MASK 0x3
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#define SEGMENT_TI_MASK 0x4
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#define USER_RPL 0x3
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#define SEGMENT_LDT 0x4
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#define SEGMENT_GDT 0x0
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#define get_kernel_rpl() 0
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#define SEGMENT_IS_KERNEL_CODE(x) (((x) & 0xfc) == GDT_ENTRY_KERNEL_CS * 8)
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#define SEGMENT_IS_FLAT_CODE(x) (((x) & 0xec) == GDT_ENTRY_KERNEL_CS * 8)
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#define SEGMENT_IS_PNP_CODE(x) (((x) & 0xf4) == GDT_ENTRY_PNPBIOS_BASE * 8)
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#endif
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