| 0,0 → 1,162 |
|---|
| /* |
| * Copyright (C) 2001-2004 Jakub Jermar |
| * All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * |
| * - Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * - Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * - The name of the author may not be used to endorse or promote products |
| * derived from this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
| * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
| * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
| * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
| * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
| * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
| * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| #ifndef __amd64_PM_H__ |
| #define __amd64_PM_H__ |
| |
| #ifndef __ASM__ |
| # include <arch/types.h> |
| # include <typedefs.h> |
| # include <arch/context.h> |
| #endif |
| |
| #define IDT_ITEMS 64 |
| #define GDT_ITEMS 8 |
| |
| #define NULL_DES 0 |
| #define KTEXT_DES 1 |
| #define KDATA_DES 2 |
| #define UTEXT_DES 3 |
| #define UDATA_DES 4 |
| #define KTEXT32_DES 5 |
| #define TSS_DES 6 |
| |
| #define gdtselector(des) ((des)<<3) |
| #define idtselector(des) ((des)<<4) |
| |
| #define PL_KERNEL 0 |
| #define PL_USER 3 |
| |
| #define AR_PRESENT (1<<7) |
| #define AR_DATA (2<<3) |
| #define AR_CODE (3<<3) |
| #define AR_WRITABLE (1<<1) |
| #define AR_READABLE (1<<1) |
| #define AR_TSS (0x9) |
| #define AR_INTERRUPT (0xe) |
| #define AR_TRAP (0xf) |
| |
| #define DPL_KERNEL (PL_KERNEL<<5) |
| #define DPL_USER (PL_USER<<5) |
| |
| #define IO_MAP_BASE (104) |
| |
| #ifndef __ASM__ |
| |
| struct descriptor { |
| unsigned limit_0_15: 16; |
| unsigned base_0_15: 16; |
| unsigned base_16_23: 8; |
| unsigned access: 8; |
| unsigned limit_16_19: 4; |
| unsigned available: 1; |
| unsigned longmode: 1; |
| unsigned special: 1; |
| unsigned granularity : 1; |
| unsigned base_24_31: 8; |
| } __attribute__ ((packed)); |
| |
| struct tss_descriptor { |
| unsigned limit_0_15: 16; |
| unsigned base_0_15: 16; |
| unsigned base_16_23: 8; |
| unsigned type: 4; |
| unsigned : 1; |
| unsigned dpl : 2; |
| unsigned present : 1; |
| unsigned limit_16_19: 4; |
| unsigned available: 1; |
| unsigned : 2; |
| unsigned granularity : 1; |
| unsigned base_24_31: 8; |
| unsigned base_32_63 : 32; |
| unsigned : 32; |
| } __attribute__ ((packed)); |
| |
| struct idescriptor { |
| unsigned offset_0_15: 16; |
| unsigned selector: 16; |
| unsigned ist:3; |
| unsigned unused: 5; |
| unsigned type: 5; |
| unsigned dpl: 2; |
| unsigned present : 1; |
| unsigned offset_16_31: 16; |
| unsigned offset_32_63: 32; |
| unsigned : 32; |
| } __attribute__ ((packed)); |
| |
| struct ptr_16_64 { |
| __u16 limit; |
| __u64 base; |
| } __attribute__ ((packed)); |
| |
| struct ptr_16_32 { |
| __u16 limit; |
| __u32 base; |
| } __attribute__ ((packed)); |
| |
| struct tss { |
| __u32 reserve1; |
| __u64 rsp0; |
| __u64 rsp1; |
| __u64 rsp2; |
| __u64 reserve2; |
| __u64 ist1; |
| __u64 ist2; |
| __u64 ist3; |
| __u64 ist4; |
| __u64 ist5; |
| __u64 ist6; |
| __u64 ist7; |
| __u64 reserve3; |
| __u16 reserve4; |
| __u16 iomap; |
| } __attribute__ ((packed)); |
| |
| extern struct tss *tss_p; |
| |
| extern struct descriptor gdt[]; |
| extern struct idescriptor idt[]; |
| |
| extern struct ptr_16_64 gdtr; |
| extern struct ptr_16_32 real_bootstrap_gdtr; |
| |
| extern void pm_init(void); |
| |
| extern void gdt_tss_setbase(struct descriptor *d, __address base); |
| extern void gdt_tss_setlimit(struct descriptor *d, __u32 limit); |
| |
| extern void idt_init(void); |
| extern void idt_setoffset(struct idescriptor *d, __address offset); |
| |
| extern void tss_initialize(struct tss *t); |
| |
| #endif /* __ASM__ */ |
| |
| #endif |