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implement sys_mprotect()

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NAKAMURA Gou
2013-07-16 20:40:02 +09:00
parent 9de06e90e7
commit 334662b7fe
6 changed files with 663 additions and 143 deletions
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58
arch/x86/kernel/include/arch-memory.h
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@@ -47,38 +47,38 @@
/* mask of the physical address of the entry to the page table */
#define PT_PHYSMASK (((1UL << 52) - 1) & PAGE_MASK)
#define PF_PRESENT 0x01 /* entry is valid */
#define PF_SIZE 0x80 /* entry points large page */
#define PF_PRESENT ((pte_t)0x01) /* entry is valid */
#define PF_SIZE ((pte_t)0x80) /* entry points large page */
#define PFL4_PRESENT 0x01
#define PFL4_WRITABLE 0x02
#define PFL4_USER 0x04
#define PFL4_PRESENT ((pte_t)0x01)
#define PFL4_WRITABLE ((pte_t)0x02)
#define PFL4_USER ((pte_t)0x04)
#define PFL3_PRESENT 0x01
#define PFL3_WRITABLE 0x02
#define PFL3_USER 0x04
#define PFL3_ACCESSED 0x20
#define PFL3_DIRTY 0x40
#define PFL3_SIZE 0x80 /* Used in 1G page */
#define PFL3_GLOBAL 0x100
#define PFL3_PRESENT ((pte_t)0x01)
#define PFL3_WRITABLE ((pte_t)0x02)
#define PFL3_USER ((pte_t)0x04)
#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 0x01
#define PFL2_WRITABLE 0x02
#define PFL2_USER 0x04
#define PFL2_ACCESSED 0x20
#define PFL2_DIRTY 0x40
#define PFL2_SIZE 0x80 /* Used in 2M page */
#define PFL2_GLOBAL 0x100
#define PFL2_PWT 0x08
#define PFL2_PCD 0x10
#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 0x01
#define PFL1_WRITABLE 0x02
#define PFL1_USER 0x04
#define PFL1_ACCESSED 0x20
#define PFL1_DIRTY 0x40
#define PFL1_PWT 0x08
#define PFL1_PCD 0x10
#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)
@@ -103,6 +103,8 @@ enum ihk_mc_pt_attribute {
typedef unsigned long pte_t;
#define PTE_NULL ((pte_t)0)
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);