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support private mapped file

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This commit is contained in:
NAKAMURA Gou
2013-08-09 20:55:17 +09:00
parent 603ef85454
commit 27172ad413
17 changed files with 1392 additions and 133 deletions
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18
arch/x86/kernel/include/arch-memory.h
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@ -1,6 +1,8 @@
#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
@ -103,9 +105,23 @@ enum ihk_mc_pt_attribute {
PTATTR_FOR_USER = 0x20000,
};
#define PTE_NULL ((pte_t)0)
typedef unsigned long pte_t;
#define PTE_NULL ((pte_t)0)
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);

2
arch/x86/kernel/include/registers.h
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@ -128,6 +128,8 @@ struct x86_regs {
unsigned long error, rip, cs, rflags, rsp, ss;
};
#define REGS_GET_STACK_POINTER(regs) (((struct x86_regs *)regs)->rsp)
/*
* Page fault error code bits:
*