2f89e26ac0
mckernel/lib/include/*.h mckernel/arch/x86/elfboot/* mckernel/arch/x86/kboot/main.c mckernel/arch/x86/kernel/* mckernel/lib/page_alloc.c mckernel/lib/string.c mckernel/lib/include/ihk/* except mckernel/arch/x86/kernel/include/signal.h mckernel/arch/x86/tools/mcreboot-attached-mic.sh.in mckernel/arch/x86/kernel/include/syscall_list.h mckernel/arch/x86/kernel/syscall.c .
155 lines
4.7 KiB
C
155 lines
4.7 KiB
C
/**
|
|
* \file arch-memomry.h
|
|
* License details are found in the file LICENSE.
|
|
* \brief
|
|
* Define and declare memory management macros and functions
|
|
* \author Taku Shimosawa <shimosawa@is.s.u-tokyo.ac.jp> \par
|
|
* Copyright (C) 2011 - 2012 Taku Shimosawa
|
|
*/
|
|
/*
|
|
* HISTORY
|
|
*/
|
|
|
|
#ifndef __HEADER_X86_COMMON_ARCH_MEMORY_H
|
|
#define __HEADER_X86_COMMON_ARCH_MEMORY_H
|
|
|
|
#include <ihk/types.h>
|
|
|
|
#define KERNEL_CS_ENTRY 4
|
|
#define KERNEL_DS_ENTRY 5
|
|
#define USER_CS_ENTRY 6
|
|
#define USER_DS_ENTRY 7
|
|
#define GLOBAL_TSS_ENTRY 8
|
|
|
|
#define KERNEL_CS (KERNEL_CS_ENTRY * 8)
|
|
#define KERNEL_DS (KERNEL_DS_ENTRY * 8)
|
|
#define USER_CS (USER_CS_ENTRY * 8 + 3)
|
|
#define USER_DS (USER_DS_ENTRY * 8 + 3)
|
|
#define GLOBAL_TSS (GLOBAL_TSS_ENTRY * 8)
|
|
|
|
#define PAGE_SHIFT 12
|
|
#define PAGE_SIZE (1UL << PAGE_SHIFT)
|
|
#define PAGE_MASK (~((unsigned long)PAGE_SIZE - 1))
|
|
#define PAGE_P2ALIGN 0
|
|
|
|
#define LARGE_PAGE_SHIFT 21
|
|
#define LARGE_PAGE_SIZE (1UL << LARGE_PAGE_SHIFT)
|
|
#define LARGE_PAGE_MASK (~((unsigned long)LARGE_PAGE_SIZE - 1))
|
|
#define LARGE_PAGE_P2ALIGN (LARGE_PAGE_SHIFT - PAGE_SHIFT)
|
|
|
|
#define USER_END 0x0000800000000000UL
|
|
#define MAP_ST_START 0xffff800000000000UL
|
|
#define MAP_VMAP_START 0xfffff00000000000UL
|
|
#define MAP_FIXED_START 0xffffffff70000000UL
|
|
#define MAP_KERNEL_START 0xffffffff80000000UL
|
|
|
|
#define MAP_VMAP_SIZE 0x0000000100000000UL
|
|
|
|
#define KERNEL_PHYS_OFFSET MAP_ST_START
|
|
|
|
#define PTL4_SHIFT 39
|
|
#define PTL4_SIZE (1UL << PTL4_SHIFT)
|
|
#define PTL3_SHIFT 30
|
|
#define PTL3_SIZE (1UL << PTL3_SHIFT)
|
|
#define PTL2_SHIFT 21
|
|
#define PTL2_SIZE (1UL << PTL2_SHIFT)
|
|
#define PTL1_SHIFT 12
|
|
#define PTL1_SIZE (1UL << PTL1_SHIFT)
|
|
|
|
#define PT_ENTRIES 512
|
|
|
|
/* mask of the physical address of the entry to the page table */
|
|
#define PT_PHYSMASK (((1UL << 52) - 1) & PAGE_MASK)
|
|
|
|
#define PF_PRESENT ((pte_t)0x01) /* entry is valid */
|
|
#define PF_SIZE ((pte_t)0x80) /* entry points large page */
|
|
|
|
#define PFL4_PRESENT ((pte_t)0x01)
|
|
#define PFL4_WRITABLE ((pte_t)0x02)
|
|
#define PFL4_USER ((pte_t)0x04)
|
|
|
|
#define PFL3_PRESENT ((pte_t)0x01)
|
|
#define PFL3_WRITABLE ((pte_t)0x02)
|
|
#define PFL3_USER ((pte_t)0x04)
|
|
#define PFL3_PWT ((pte_t)0x08)
|
|
#define PFL3_PCD ((pte_t)0x10)
|
|
#define PFL3_ACCESSED ((pte_t)0x20)
|
|
#define PFL3_DIRTY ((pte_t)0x40)
|
|
#define PFL3_SIZE ((pte_t)0x80) /* Used in 1G page */
|
|
#define PFL3_GLOBAL ((pte_t)0x100)
|
|
|
|
#define PFL2_PRESENT ((pte_t)0x01)
|
|
#define PFL2_WRITABLE ((pte_t)0x02)
|
|
#define PFL2_USER ((pte_t)0x04)
|
|
#define PFL2_PWT ((pte_t)0x08)
|
|
#define PFL2_PCD ((pte_t)0x10)
|
|
#define PFL2_ACCESSED ((pte_t)0x20)
|
|
#define PFL2_DIRTY ((pte_t)0x40)
|
|
#define PFL2_SIZE ((pte_t)0x80) /* Used in 2M page */
|
|
#define PFL2_GLOBAL ((pte_t)0x100)
|
|
|
|
#define PFL1_PRESENT ((pte_t)0x01)
|
|
#define PFL1_WRITABLE ((pte_t)0x02)
|
|
#define PFL1_USER ((pte_t)0x04)
|
|
#define PFL1_PWT ((pte_t)0x08)
|
|
#define PFL1_PCD ((pte_t)0x10)
|
|
#define PFL1_ACCESSED ((pte_t)0x20)
|
|
#define PFL1_DIRTY ((pte_t)0x40)
|
|
|
|
/* We allow user programs to access all the memory */
|
|
#define PFL4_KERN_ATTR (PFL4_PRESENT | PFL4_WRITABLE)
|
|
#define PFL3_KERN_ATTR (PFL3_PRESENT | PFL3_WRITABLE)
|
|
#define PFL2_KERN_ATTR (PFL2_PRESENT | PFL2_WRITABLE)
|
|
#define PFL1_KERN_ATTR (PFL1_PRESENT | PFL1_WRITABLE)
|
|
|
|
/* for the page table entry that points another page table */
|
|
#define PFL4_PDIR_ATTR (PFL4_PRESENT | PFL4_WRITABLE | PFL4_USER)
|
|
#define PFL3_PDIR_ATTR (PFL3_PRESENT | PFL3_WRITABLE | PFL3_USER)
|
|
#define PFL2_PDIR_ATTR (PFL2_PRESENT | PFL2_WRITABLE | PFL2_USER)
|
|
|
|
/* For easy conversion, it is better to be the same as architecture's ones */
|
|
enum ihk_mc_pt_attribute {
|
|
PTATTR_ACTIVE = 0x01,
|
|
PTATTR_WRITABLE = 0x02,
|
|
PTATTR_USER = 0x04,
|
|
PTATTR_LARGEPAGE = 0x80,
|
|
PTATTR_UNCACHABLE = 0x10000,
|
|
PTATTR_FOR_USER = 0x20000,
|
|
};
|
|
|
|
#define PTE_NULL ((pte_t)0)
|
|
typedef unsigned long pte_t;
|
|
|
|
static inline int pte_is_null(pte_t *ptep)
|
|
{
|
|
return (*ptep == PTE_NULL);
|
|
}
|
|
|
|
static inline int pte_is_present(pte_t *ptep)
|
|
{
|
|
return !!(*ptep & PF_PRESENT);
|
|
}
|
|
|
|
static inline uintptr_t pte_get_phys(pte_t *ptep)
|
|
{
|
|
return (*ptep & PT_PHYSMASK);
|
|
}
|
|
|
|
struct page_table;
|
|
void set_pte(pte_t *ppte, unsigned long phys, int attr);
|
|
pte_t *get_pte(struct page_table *pt, void *virt, int attr);
|
|
|
|
void *early_alloc_page(void);
|
|
void *get_last_early_heap(void);
|
|
void flush_tlb(void);
|
|
void flush_tlb_single(unsigned long addr);
|
|
|
|
void *map_fixed_area(unsigned long phys, unsigned long size, int uncachable);
|
|
|
|
#define AP_TRAMPOLINE 0x10000
|
|
#define AP_TRAMPOLINE_SIZE 0x4000
|
|
|
|
/* Local is cachable */
|
|
#define IHK_IKC_QUEUE_PT_ATTR (PTATTR_WRITABLE | PTATTR_UNCACHABLE)
|
|
#endif
|