Skip to content

L
linux
Commit b233969e authored by Ingo Molnar's avatar Ingo Molnar
Browse files
Options

Merge branch 'x86/untangle2' of... 

Merge branch 'x86/untangle2' of git://git.kernel.org/pub/scm/linux/kernel/git/jeremy/xen into x86/headers

Conflicts:
	arch/x86/include/asm/page.h
	arch/x86/include/asm/pgtable.h
	arch/x86/mach-voyager/voyager_smp.c
	arch/x86/mm/fault.c
parents d040c161 54321d94
Show whitespace changes
Inline Side-by-side
Showing with 876 additions and 698 deletions
arch/x86/include/asm/page.h
View file @ b233969e
#ifndef _ASM_X86_PAGE_H #ifndef _ASM_X86_PAGE_H
#define _ASM_X86_PAGE_H #define _ASM_X86_PAGE_H
#include <linux/const.h>
/* PAGE_SHIFT determines the page size */
#define PAGE_SHIFT 12
#define PAGE_SIZE (_AC(1,UL) << PAGE_SHIFT)
#define PAGE_MASK (~(PAGE_SIZE-1))
#ifdef __KERNEL__ #ifdef __KERNEL__
#define __PHYSICAL_MASK ((phys_addr_t)(1ULL << __PHYSICAL_MASK_SHIFT) - 1) #include <asm/page_types.h>
#define __VIRTUAL_MASK ((1UL << __VIRTUAL_MASK_SHIFT) - 1)
/* Cast PAGE_MASK to a signed type so that it is sign-extended if
virtual addresses are 32-bits but physical addresses are larger
(ie, 32-bit PAE). */
#define PHYSICAL_PAGE_MASK (((signed long)PAGE_MASK) & __PHYSICAL_MASK)
/* PTE_PFN_MASK extracts the PFN from a (pte|pmd|pud|pgd)val_t */
#define PTE_PFN_MASK ((pteval_t)PHYSICAL_PAGE_MASK)
/* PTE_FLAGS_MASK extracts the flags from a (pte|pmd|pud|pgd)val_t */
#define PTE_FLAGS_MASK (~PTE_PFN_MASK)
#define PMD_PAGE_SIZE (_AC(1, UL) << PMD_SHIFT)
#define PMD_PAGE_MASK (~(PMD_PAGE_SIZE-1))
#define HPAGE_SHIFT PMD_SHIFT
#define HPAGE_SIZE (_AC(1,UL) << HPAGE_SHIFT)
#define HPAGE_MASK (~(HPAGE_SIZE - 1))
#define HUGETLB_PAGE_ORDER (HPAGE_SHIFT - PAGE_SHIFT)
#define HUGE_MAX_HSTATE 2
#ifndef __ASSEMBLY__
#include <linux/types.h>
#endif
#ifdef CONFIG_X86_64 #ifdef CONFIG_X86_64
#include <asm/page_64.h> #include <asm/page_64.h>
...@@ -44,28 +11,8 @@ ...@@ -44,28 +11,8 @@
#include <asm/page_32.h> #include <asm/page_32.h>
#endif /* CONFIG_X86_64 */ #endif /* CONFIG_X86_64 */
#define PAGE_OFFSET ((unsigned long)__PAGE_OFFSET)
#define VM_DATA_DEFAULT_FLAGS \
(((current->personality & READ_IMPLIES_EXEC) ? VM_EXEC : 0 ) | \
VM_READ | VM_WRITE | VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC)
#ifndef __ASSEMBLY__ #ifndef __ASSEMBLY__
typedef struct { pgdval_t pgd; } pgd_t;
typedef struct { pgprotval_t pgprot; } pgprot_t;
extern int page_is_ram(unsigned long pagenr);
extern int devmem_is_allowed(unsigned long pagenr);
extern void map_devmem(unsigned long pfn, unsigned long size,
pgprot_t vma_prot);
extern void unmap_devmem(unsigned long pfn, unsigned long size,
pgprot_t vma_prot);
extern unsigned long max_low_pfn_mapped;
extern unsigned long max_pfn_mapped;
struct page; struct page;
static inline void clear_user_page(void *page, unsigned long vaddr, static inline void clear_user_page(void *page, unsigned long vaddr,
...@@ -84,114 +31,6 @@ static inline void copy_user_page(void *to, void *from, unsigned long vaddr, ...@@ -84,114 +31,6 @@ static inline void copy_user_page(void *to, void *from, unsigned long vaddr,
alloc_page_vma(GFP_HIGHUSER | __GFP_ZERO | movableflags, vma, vaddr) alloc_page_vma(GFP_HIGHUSER | __GFP_ZERO | movableflags, vma, vaddr)
#define __HAVE_ARCH_ALLOC_ZEROED_USER_HIGHPAGE #define __HAVE_ARCH_ALLOC_ZEROED_USER_HIGHPAGE
static inline pgd_t native_make_pgd(pgdval_t val)
{
return (pgd_t) { val };
}
static inline pgdval_t native_pgd_val(pgd_t pgd)
{
return pgd.pgd;
}
static inline pgdval_t pgd_flags(pgd_t pgd)
{
return native_pgd_val(pgd) & PTE_FLAGS_MASK;
}
#if PAGETABLE_LEVELS >= 3
#if PAGETABLE_LEVELS == 4
typedef struct { pudval_t pud; } pud_t;
static inline pud_t native_make_pud(pmdval_t val)
{
return (pud_t) { val };
}
static inline pudval_t native_pud_val(pud_t pud)
{
return pud.pud;
}
#else /* PAGETABLE_LEVELS == 3 */
#include <asm-generic/pgtable-nopud.h>
static inline pudval_t native_pud_val(pud_t pud)
{
return native_pgd_val(pud.pgd);
}
#endif /* PAGETABLE_LEVELS == 4 */
static inline pudval_t pud_flags(pud_t pud)
{
return native_pud_val(pud) & PTE_FLAGS_MASK;
}
typedef struct { pmdval_t pmd; } pmd_t;
static inline pmd_t native_make_pmd(pmdval_t val)
{
return (pmd_t) { val };
}
static inline pmdval_t native_pmd_val(pmd_t pmd)
{
return pmd.pmd;
}
#else /* PAGETABLE_LEVELS == 2 */
#include <asm-generic/pgtable-nopmd.h>
static inline pmdval_t native_pmd_val(pmd_t pmd)
{
return native_pgd_val(pmd.pud.pgd);
}
#endif /* PAGETABLE_LEVELS >= 3 */
static inline pmdval_t pmd_flags(pmd_t pmd)
{
return native_pmd_val(pmd) & PTE_FLAGS_MASK;
}
static inline pte_t native_make_pte(pteval_t val)
{
return (pte_t) { .pte = val };
}
static inline pteval_t native_pte_val(pte_t pte)
{
return pte.pte;
}
static inline pteval_t pte_flags(pte_t pte)
{
return native_pte_val(pte) & PTE_FLAGS_MASK;
}
#define pgprot_val(x) ((x).pgprot)
#define __pgprot(x) ((pgprot_t) { (x) } )
#ifdef CONFIG_PARAVIRT
#include <asm/paravirt.h>
#else /* !CONFIG_PARAVIRT */
#define pgd_val(x) native_pgd_val(x)
#define __pgd(x) native_make_pgd(x)
#ifndef __PAGETABLE_PUD_FOLDED
#define pud_val(x) native_pud_val(x)
#define __pud(x) native_make_pud(x)
#endif
#ifndef __PAGETABLE_PMD_FOLDED
#define pmd_val(x) native_pmd_val(x)
#define __pmd(x) native_make_pmd(x)
#endif
#define pte_val(x) native_pte_val(x)
#define __pte(x) native_make_pte(x)
#endif /* CONFIG_PARAVIRT */
#define __pa(x) __phys_addr((unsigned long)(x)) #define __pa(x) __phys_addr((unsigned long)(x))
#define __pa_nodebug(x) __phys_addr_nodebug((unsigned long)(x)) #define __pa_nodebug(x) __phys_addr_nodebug((unsigned long)(x))
/* __pa_symbol should be used for C visible symbols. /* __pa_symbol should be used for C visible symbols.
......
arch/x86/include/asm/page_32.h
View file @ b233969e
#ifndef _ASM_X86_PAGE_32_H #ifndef _ASM_X86_PAGE_32_H
#define _ASM_X86_PAGE_32_H #define _ASM_X86_PAGE_32_H
/* #include <asm/page_32_types.h>
* This handles the memory map.
*
* A __PAGE_OFFSET of 0xC0000000 means that the kernel has
* a virtual address space of one gigabyte, which limits the
* amount of physical memory you can use to about 950MB.
*
* If you want more physical memory than this then see the CONFIG_HIGHMEM4G
* and CONFIG_HIGHMEM64G options in the kernel configuration.
*/
#define __PAGE_OFFSET _AC(CONFIG_PAGE_OFFSET, UL)
#ifdef CONFIG_4KSTACKS
#define THREAD_ORDER 0
#else
#define THREAD_ORDER 1
#endif
#define THREAD_SIZE (PAGE_SIZE << THREAD_ORDER)
#define STACKFAULT_STACK 0
#define DOUBLEFAULT_STACK 1
#define NMI_STACK 0
#define DEBUG_STACK 0
#define MCE_STACK 0
#define N_EXCEPTION_STACKS 1
#ifdef CONFIG_X86_PAE
/* 44=32+12, the limit we can fit into an unsigned long pfn */
#define __PHYSICAL_MASK_SHIFT 44
#define __VIRTUAL_MASK_SHIFT 32
#define PAGETABLE_LEVELS 3
#ifndef __ASSEMBLY__
typedef u64 pteval_t;
typedef u64 pmdval_t;
typedef u64 pudval_t;
typedef u64 pgdval_t;
typedef u64 pgprotval_t;
typedef union {
struct {
unsigned long pte_low, pte_high;
};
pteval_t pte;
} pte_t;
#endif /* __ASSEMBLY__
*/
#else /* !CONFIG_X86_PAE */
#define __PHYSICAL_MASK_SHIFT 32
#define __VIRTUAL_MASK_SHIFT 32
#define PAGETABLE_LEVELS 2
#ifndef __ASSEMBLY__
typedef unsigned long pteval_t;
typedef unsigned long pmdval_t;
typedef unsigned long pudval_t;
typedef unsigned long pgdval_t;
typedef unsigned long pgprotval_t;
typedef union {
pteval_t pte;
pteval_t pte_low;
} pte_t;
#endif /* __ASSEMBLY__ */
#endif /* CONFIG_X86_PAE */
#ifndef __ASSEMBLY__
typedef struct page *pgtable_t;
#endif
#ifdef CONFIG_HUGETLB_PAGE #ifdef CONFIG_HUGETLB_PAGE
#define HAVE_ARCH_HUGETLB_UNMAPPED_AREA #define HAVE_ARCH_HUGETLB_UNMAPPED_AREA
#endif #endif
#ifndef __ASSEMBLY__
#define __phys_addr_nodebug(x) ((x) - PAGE_OFFSET) #define __phys_addr_nodebug(x) ((x) - PAGE_OFFSET)
#ifdef CONFIG_DEBUG_VIRTUAL #ifdef CONFIG_DEBUG_VIRTUAL
extern unsigned long __phys_addr(unsigned long); extern unsigned long __phys_addr(unsigned long);
...@@ -89,22 +19,7 @@ extern unsigned long __phys_addr(unsigned long); ...@@ -89,22 +19,7 @@ extern unsigned long __phys_addr(unsigned long);
#define pfn_valid(pfn) ((pfn) < max_mapnr) #define pfn_valid(pfn) ((pfn) < max_mapnr)
#endif /* CONFIG_FLATMEM */ #endif /* CONFIG_FLATMEM */
extern int nx_enabled; #ifndef __ASSEMBLY__
/*
* This much address space is reserved for vmalloc() and iomap()
* as well as fixmap mappings.
*/
extern unsigned int __VMALLOC_RESERVE;
extern int sysctl_legacy_va_layout;
extern void find_low_pfn_range(void);
extern unsigned long init_memory_mapping(unsigned long start,
unsigned long end);
extern void initmem_init(unsigned long, unsigned long);
extern void free_initmem(void);
extern void setup_bootmem_allocator(void);
#ifdef CONFIG_X86_USE_3DNOW #ifdef CONFIG_X86_USE_3DNOW
#include <asm/mmx.h> #include <asm/mmx.h>
......
arch/x86/include/asm/page_32_types.h 0 → 100644
View file @ b233969e
#ifndef _ASM_X86_PAGE_32_DEFS_H
#define _ASM_X86_PAGE_32_DEFS_H
#include <linux/const.h>
/*
* This handles the memory map.
*
* A __PAGE_OFFSET of 0xC0000000 means that the kernel has
* a virtual address space of one gigabyte, which limits the
* amount of physical memory you can use to about 950MB.
*
* If you want more physical memory than this then see the CONFIG_HIGHMEM4G
* and CONFIG_HIGHMEM64G options in the kernel configuration.
*/
#define __PAGE_OFFSET _AC(CONFIG_PAGE_OFFSET, UL)
#ifdef CONFIG_4KSTACKS
#define THREAD_ORDER 0
#else
#define THREAD_ORDER 1
#endif
#define THREAD_SIZE (PAGE_SIZE << THREAD_ORDER)
#define STACKFAULT_STACK 0
#define DOUBLEFAULT_STACK 1
#define NMI_STACK 0
#define DEBUG_STACK 0
#define MCE_STACK 0
#define N_EXCEPTION_STACKS 1
#ifdef CONFIG_X86_PAE
/* 44=32+12, the limit we can fit into an unsigned long pfn */
#define __PHYSICAL_MASK_SHIFT 44
#define __VIRTUAL_MASK_SHIFT 32
#define PAGETABLE_LEVELS 3
#else /* !CONFIG_X86_PAE */
#define __PHYSICAL_MASK_SHIFT 32
#define __VIRTUAL_MASK_SHIFT 32
#define PAGETABLE_LEVELS 2
#endif /* CONFIG_X86_PAE */
#ifndef __ASSEMBLY__
/*
* This much address space is reserved for vmalloc() and iomap()
* as well as fixmap mappings.
*/
extern unsigned int __VMALLOC_RESERVE;
extern int sysctl_legacy_va_layout;
extern void find_low_pfn_range(void);
extern unsigned long init_memory_mapping(unsigned long start,
unsigned long end);
extern void initmem_init(unsigned long, unsigned long);
extern void free_initmem(void);
extern void setup_bootmem_allocator(void);
#endif /* !__ASSEMBLY__ */
#endif /* _ASM_X86_PAGE_32_DEFS_H */
arch/x86/include/asm/page_64.h
View file @ b233969e
#ifndef _ASM_X86_PAGE_64_H #ifndef _ASM_X86_PAGE_64_H
#define _ASM_X86_PAGE_64_H #define _ASM_X86_PAGE_64_H
#define PAGETABLE_LEVELS 4 #include <asm/page_64_types.h>
#define THREAD_ORDER 1
#define THREAD_SIZE (PAGE_SIZE << THREAD_ORDER)
#define CURRENT_MASK (~(THREAD_SIZE - 1))
#define EXCEPTION_STACK_ORDER 0
#define EXCEPTION_STKSZ (PAGE_SIZE << EXCEPTION_STACK_ORDER)
#define DEBUG_STACK_ORDER (EXCEPTION_STACK_ORDER + 1)
#define DEBUG_STKSZ (PAGE_SIZE << DEBUG_STACK_ORDER)
#define IRQ_STACK_ORDER 2
#define IRQ_STACK_SIZE (PAGE_SIZE << IRQ_STACK_ORDER)
#define STACKFAULT_STACK 1
#define DOUBLEFAULT_STACK 2
#define NMI_STACK 3
#define DEBUG_STACK 4
#define MCE_STACK 5
#define N_EXCEPTION_STACKS 5 /* hw limit: 7 */
#define PUD_PAGE_SIZE (_AC(1, UL) << PUD_SHIFT)
#define PUD_PAGE_MASK (~(PUD_PAGE_SIZE-1))
/*
* Set __PAGE_OFFSET to the most negative possible address +
* PGDIR_SIZE*16 (pgd slot 272). The gap is to allow a space for a
* hypervisor to fit. Choosing 16 slots here is arbitrary, but it's
* what Xen requires.
*/
#define __PAGE_OFFSET _AC(0xffff880000000000, UL)
#define __PHYSICAL_START CONFIG_PHYSICAL_START
#define __KERNEL_ALIGN 0x200000
/*
* Make sure kernel is aligned to 2MB address. Catching it at compile
* time is better. Change your config file and compile the kernel
* for a 2MB aligned address (CONFIG_PHYSICAL_START)
*/
#if (CONFIG_PHYSICAL_START % __KERNEL_ALIGN) != 0
#error "CONFIG_PHYSICAL_START must be a multiple of 2MB"
#endif
#define __START_KERNEL (__START_KERNEL_map + __PHYSICAL_START)
#define __START_KERNEL_map _AC(0xffffffff80000000, UL)
/* See Documentation/x86_64/mm.txt for a description of the memory map. */
#define __PHYSICAL_MASK_SHIFT 46
#define __VIRTUAL_MASK_SHIFT 48
/*
* Kernel image size is limited to 512 MB (see level2_kernel_pgt in
* arch/x86/kernel/head_64.S), and it is mapped here:
*/
#define KERNEL_IMAGE_SIZE (512 * 1024 * 1024)
#define KERNEL_IMAGE_START _AC(0xffffffff80000000, UL)
#ifndef __ASSEMBLY__
void clear_page(void *page);
void copy_page(void *to, void *from);
/* duplicated to the one in bootmem.h */
extern unsigned long max_pfn;
extern unsigned long phys_base;
extern unsigned long __phys_addr(unsigned long);
#define __phys_reloc_hide(x) (x)
/*
* These are used to make use of C type-checking..
*/
typedef unsigned long pteval_t;
typedef unsigned long pmdval_t;
typedef unsigned long pudval_t;
typedef unsigned long pgdval_t;
typedef unsigned long pgprotval_t;
typedef struct page *pgtable_t;
typedef struct { pteval_t pte; } pte_t;
#define vmemmap ((struct page *)VMEMMAP_START)
extern unsigned long init_memory_mapping(unsigned long start,
unsigned long end);
extern void initmem_init(unsigned long start_pfn, unsigned long end_pfn);
extern void free_initmem(void);
extern void init_extra_mapping_uc(unsigned long phys, unsigned long size);
extern void init_extra_mapping_wb(unsigned long phys, unsigned long size);
#endif /* !__ASSEMBLY__ */
#ifdef CONFIG_FLATMEM
#define pfn_valid(pfn) ((pfn) < max_pfn)
#endif
#endif /* _ASM_X86_PAGE_64_H */ #endif /* _ASM_X86_PAGE_64_H */
arch/x86/include/asm/page_64.h.rej 0 → 100644
View file @ b233969e
***************
*** 1,105 ****
#ifndef _ASM_X86_PAGE_64_H
#define _ASM_X86_PAGE_64_H
- #define PAGETABLE_LEVELS 4
-
- #define THREAD_ORDER 1
- #define THREAD_SIZE (PAGE_SIZE << THREAD_ORDER)
- #define CURRENT_MASK (~(THREAD_SIZE - 1))
-
- #define EXCEPTION_STACK_ORDER 0
- #define EXCEPTION_STKSZ (PAGE_SIZE << EXCEPTION_STACK_ORDER)
-
- #define DEBUG_STACK_ORDER (EXCEPTION_STACK_ORDER + 1)
- #define DEBUG_STKSZ (PAGE_SIZE << DEBUG_STACK_ORDER)
-
- #define IRQSTACK_ORDER 2
- #define IRQSTACKSIZE (PAGE_SIZE << IRQSTACK_ORDER)
-
- #define STACKFAULT_STACK 1
- #define DOUBLEFAULT_STACK 2
- #define NMI_STACK 3
- #define DEBUG_STACK 4
- #define MCE_STACK 5
- #define N_EXCEPTION_STACKS 5 /* hw limit: 7 */
-
- #define PUD_PAGE_SIZE (_AC(1, UL) << PUD_SHIFT)
- #define PUD_PAGE_MASK (~(PUD_PAGE_SIZE-1))
-
- /*
- * Set __PAGE_OFFSET to the most negative possible address +
- * PGDIR_SIZE*16 (pgd slot 272). The gap is to allow a space for a
- * hypervisor to fit. Choosing 16 slots here is arbitrary, but it's
- * what Xen requires.
- */
- #define __PAGE_OFFSET _AC(0xffff880000000000, UL)
-
- #define __PHYSICAL_START CONFIG_PHYSICAL_START
- #define __KERNEL_ALIGN 0x200000
-
- /*
- * Make sure kernel is aligned to 2MB address. Catching it at compile
- * time is better. Change your config file and compile the kernel
- * for a 2MB aligned address (CONFIG_PHYSICAL_START)
- */
- #if (CONFIG_PHYSICAL_START % __KERNEL_ALIGN) != 0
- #error "CONFIG_PHYSICAL_START must be a multiple of 2MB"
- #endif
-
- #define __START_KERNEL (__START_KERNEL_map + __PHYSICAL_START)
- #define __START_KERNEL_map _AC(0xffffffff80000000, UL)
-
- /* See Documentation/x86_64/mm.txt for a description of the memory map. */
- #define __PHYSICAL_MASK_SHIFT 46
- #define __VIRTUAL_MASK_SHIFT 48
-
- /*
- * Kernel image size is limited to 512 MB (see level2_kernel_pgt in
- * arch/x86/kernel/head_64.S), and it is mapped here:
- */
- #define KERNEL_IMAGE_SIZE (512 * 1024 * 1024)
- #define KERNEL_IMAGE_START _AC(0xffffffff80000000, UL)
-
- #ifndef __ASSEMBLY__
- void clear_page(void *page);
- void copy_page(void *to, void *from);
-
- /* duplicated to the one in bootmem.h */
- extern unsigned long max_pfn;
- extern unsigned long phys_base;
-
- extern unsigned long __phys_addr(unsigned long);
- #define __phys_reloc_hide(x) (x)
-
- /*
- * These are used to make use of C type-checking..
- */
- typedef unsigned long pteval_t;
- typedef unsigned long pmdval_t;
- typedef unsigned long pudval_t;
- typedef unsigned long pgdval_t;
- typedef unsigned long pgprotval_t;
-
- typedef struct page *pgtable_t;
-
- typedef struct { pteval_t pte; } pte_t;
-
- #define vmemmap ((struct page *)VMEMMAP_START)
-
- extern unsigned long init_memory_mapping(unsigned long start,
- unsigned long end);
-
- extern void initmem_init(unsigned long start_pfn, unsigned long end_pfn);
- extern void free_initmem(void);
-
- extern void init_extra_mapping_uc(unsigned long phys, unsigned long size);
- extern void init_extra_mapping_wb(unsigned long phys, unsigned long size);
-
- #endif /* !__ASSEMBLY__ */
-
- #ifdef CONFIG_FLATMEM
- #define pfn_valid(pfn) ((pfn) < max_pfn)
- #endif
-
#endif /* _ASM_X86_PAGE_64_H */
--- 1,6 ----
#ifndef _ASM_X86_PAGE_64_H
#define _ASM_X86_PAGE_64_H
+ #include <asm/page_64_types.h>
#endif /* _ASM_X86_PAGE_64_H */
arch/x86/include/asm/page_64_types.h 0 → 100644
View file @ b233969e
#ifndef _ASM_X86_PAGE_64_DEFS_H
#define _ASM_X86_PAGE_64_DEFS_H
#define PAGETABLE_LEVELS 4
#define THREAD_ORDER 1
#define THREAD_SIZE (PAGE_SIZE << THREAD_ORDER)
#define CURRENT_MASK (~(THREAD_SIZE - 1))
#define EXCEPTION_STACK_ORDER 0
#define EXCEPTION_STKSZ (PAGE_SIZE << EXCEPTION_STACK_ORDER)
#define DEBUG_STACK_ORDER (EXCEPTION_STACK_ORDER + 1)
#define DEBUG_STKSZ (PAGE_SIZE << DEBUG_STACK_ORDER)
#define IRQ_STACK_ORDER 2
#define IRQ_STACK_SIZE (PAGE_SIZE << IRQ_STACK_ORDER)
#define STACKFAULT_STACK 1
#define DOUBLEFAULT_STACK 2
#define NMI_STACK 3
#define DEBUG_STACK 4
#define MCE_STACK 5
#define N_EXCEPTION_STACKS 5 /* hw limit: 7 */
#define PUD_PAGE_SIZE (_AC(1, UL) << PUD_SHIFT)
#define PUD_PAGE_MASK (~(PUD_PAGE_SIZE-1))
/*
* Set __PAGE_OFFSET to the most negative possible address +
* PGDIR_SIZE*16 (pgd slot 272). The gap is to allow a space for a
* hypervisor to fit. Choosing 16 slots here is arbitrary, but it's
* what Xen requires.
*/
#define __PAGE_OFFSET _AC(0xffff880000000000, UL)
#define __PHYSICAL_START CONFIG_PHYSICAL_START
#define __KERNEL_ALIGN 0x200000
/*
* Make sure kernel is aligned to 2MB address. Catching it at compile
* time is better. Change your config file and compile the kernel
* for a 2MB aligned address (CONFIG_PHYSICAL_START)
*/
#if (CONFIG_PHYSICAL_START % __KERNEL_ALIGN) != 0
#error "CONFIG_PHYSICAL_START must be a multiple of 2MB"
#endif
#define __START_KERNEL (__START_KERNEL_map + __PHYSICAL_START)
#define __START_KERNEL_map _AC(0xffffffff80000000, UL)
/* See Documentation/x86_64/mm.txt for a description of the memory map. */
#define __PHYSICAL_MASK_SHIFT 46
#define __VIRTUAL_MASK_SHIFT 48
/*
* Kernel image size is limited to 512 MB (see level2_kernel_pgt in
* arch/x86/kernel/head_64.S), and it is mapped here:
*/
#define KERNEL_IMAGE_SIZE (512 * 1024 * 1024)
#define KERNEL_IMAGE_START _AC(0xffffffff80000000, UL)
#ifndef __ASSEMBLY__
void clear_page(void *page);
void copy_page(void *to, void *from);
/* duplicated to the one in bootmem.h */
extern unsigned long max_pfn;
extern unsigned long phys_base;
extern unsigned long __phys_addr(unsigned long);
#define __phys_reloc_hide(x) (x)
#define vmemmap ((struct page *)VMEMMAP_START)
extern unsigned long init_memory_mapping(unsigned long start,
unsigned long end);
extern void initmem_init(unsigned long start_pfn, unsigned long end_pfn);
extern void free_initmem(void);
extern void init_extra_mapping_uc(unsigned long phys, unsigned long size);
extern void init_extra_mapping_wb(unsigned long phys, unsigned long size);
#endif /* !__ASSEMBLY__ */
#ifdef CONFIG_FLATMEM
#define pfn_valid(pfn) ((pfn) < max_pfn)
#endif
#endif /* _ASM_X86_PAGE_64_DEFS_H */
arch/x86/include/asm/page_types.h 0 → 100644
View file @ b233969e
#ifndef _ASM_X86_PAGE_DEFS_H
#define _ASM_X86_PAGE_DEFS_H
#include <linux/const.h>
/* PAGE_SHIFT determines the page size */
#define PAGE_SHIFT 12
#define PAGE_SIZE (_AC(1,UL) << PAGE_SHIFT)
#define PAGE_MASK (~(PAGE_SIZE-1))
#define __PHYSICAL_MASK ((phys_addr_t)(1ULL << __PHYSICAL_MASK_SHIFT) - 1)
#define __VIRTUAL_MASK ((1UL << __VIRTUAL_MASK_SHIFT) - 1)
/* Cast PAGE_MASK to a signed type so that it is sign-extended if
virtual addresses are 32-bits but physical addresses are larger
(ie, 32-bit PAE). */
#define PHYSICAL_PAGE_MASK (((signed long)PAGE_MASK) & __PHYSICAL_MASK)
/* PTE_PFN_MASK extracts the PFN from a (pte|pmd|pud|pgd)val_t */
#define PTE_PFN_MASK ((pteval_t)PHYSICAL_PAGE_MASK)
/* PTE_FLAGS_MASK extracts the flags from a (pte|pmd|pud|pgd)val_t */
#define PTE_FLAGS_MASK (~PTE_PFN_MASK)
#define PMD_PAGE_SIZE (_AC(1, UL) << PMD_SHIFT)
#define PMD_PAGE_MASK (~(PMD_PAGE_SIZE-1))
#define HPAGE_SHIFT PMD_SHIFT
#define HPAGE_SIZE (_AC(1,UL) << HPAGE_SHIFT)
#define HPAGE_MASK (~(HPAGE_SIZE - 1))
#define HUGETLB_PAGE_ORDER (HPAGE_SHIFT - PAGE_SHIFT)
#define HUGE_MAX_HSTATE 2
#define PAGE_OFFSET ((unsigned long)__PAGE_OFFSET)
#define VM_DATA_DEFAULT_FLAGS \
(((current->personality & READ_IMPLIES_EXEC) ? VM_EXEC : 0 ) | \
VM_READ | VM_WRITE | VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC)
#ifdef CONFIG_X86_64
#include <asm/page_64_types.h>
#else
#include <asm/page_32_types.h>
#endif /* CONFIG_X86_64 */
#ifndef __ASSEMBLY__
struct pgprot;
extern int page_is_ram(unsigned long pagenr);
extern int devmem_is_allowed(unsigned long pagenr);
extern void map_devmem(unsigned long pfn, unsigned long size,
struct pgprot vma_prot);
extern void unmap_devmem(unsigned long pfn, unsigned long size,
struct pgprot vma_prot);
extern unsigned long max_low_pfn_mapped;
extern unsigned long max_pfn_mapped;
#endif /* !__ASSEMBLY__ */
#endif /* _ASM_X86_PAGE_DEFS_H */
arch/x86/include/asm/paravirt.h
View file @ b233969e
...@@ -4,7 +4,7 @@ ...@@ -4,7 +4,7 @@
* para-virtualization: those hooks are defined here. */ * para-virtualization: those hooks are defined here. */
#ifdef CONFIG_PARAVIRT #ifdef CONFIG_PARAVIRT
#include <asm/page.h> #include <asm/pgtable_types.h>
#include <asm/asm.h> #include <asm/asm.h>
/* Bitmask of what can be clobbered: usually at least eax. */ /* Bitmask of what can be clobbered: usually at least eax. */
......
arch/x86/include/asm/pgtable-2level-defs.h → arch/x86/include/asm/pgtable-2level_types.h
View file @ b233969e
#ifndef _ASM_X86_PGTABLE_2LEVEL_DEFS_H #ifndef _ASM_X86_PGTABLE_2LEVEL_DEFS_H
#define _ASM_X86_PGTABLE_2LEVEL_DEFS_H #define _ASM_X86_PGTABLE_2LEVEL_DEFS_H
#ifndef __ASSEMBLY__
#include <linux/types.h>
typedef unsigned long pteval_t;
typedef unsigned long pmdval_t;
typedef unsigned long pudval_t;
typedef unsigned long pgdval_t;
typedef unsigned long pgprotval_t;
typedef union {
pteval_t pte;
pteval_t pte_low;
} pte_t;
#endif /* !__ASSEMBLY__ */
#define SHARED_KERNEL_PMD 0 #define SHARED_KERNEL_PMD 0
/* /*
......
arch/x86/include/asm/pgtable-3level-defs.h → arch/x86/include/asm/pgtable-3level_types.h
View file @ b233969e
#ifndef _ASM_X86_PGTABLE_3LEVEL_DEFS_H #ifndef _ASM_X86_PGTABLE_3LEVEL_DEFS_H
#define _ASM_X86_PGTABLE_3LEVEL_DEFS_H #define _ASM_X86_PGTABLE_3LEVEL_DEFS_H
#ifndef __ASSEMBLY__
#include <linux/types.h>
typedef u64 pteval_t;
typedef u64 pmdval_t;
typedef u64 pudval_t;
typedef u64 pgdval_t;
typedef u64 pgprotval_t;
typedef union {
struct {
unsigned long pte_low, pte_high;
};
pteval_t pte;
} pte_t;
#endif /* !__ASSEMBLY__ */
#ifdef CONFIG_PARAVIRT #ifdef CONFIG_PARAVIRT
#define SHARED_KERNEL_PMD (pv_info.shared_kernel_pmd) #define SHARED_KERNEL_PMD (pv_info.shared_kernel_pmd)
#else #else
...@@ -25,4 +42,5 @@ ...@@ -25,4 +42,5 @@
*/ */
#define PTRS_PER_PTE 512 #define PTRS_PER_PTE 512
#endif /* _ASM_X86_PGTABLE_3LEVEL_DEFS_H */ #endif /* _ASM_X86_PGTABLE_3LEVEL_DEFS_H */
arch/x86/include/asm/pgtable.h
View file @ b233969e
...@@ -3,164 +3,7 @@ ...@@ -3,164 +3,7 @@
#include <asm/page.h> #include <asm/page.h>
#define FIRST_USER_ADDRESS 0 #include <asm/pgtable_types.h>
#define _PAGE_BIT_PRESENT 0 /* is present */
#define _PAGE_BIT_RW 1 /* writeable */
#define _PAGE_BIT_USER 2 /* userspace addressable */
#define _PAGE_BIT_PWT 3 /* page write through */
#define _PAGE_BIT_PCD 4 /* page cache disabled */
#define _PAGE_BIT_ACCESSED 5 /* was accessed (raised by CPU) */
#define _PAGE_BIT_DIRTY 6 /* was written to (raised by CPU) */
#define _PAGE_BIT_PSE 7 /* 4 MB (or 2MB) page */
#define _PAGE_BIT_PAT 7 /* on 4KB pages */
#define _PAGE_BIT_GLOBAL 8 /* Global TLB entry PPro+ */
#define _PAGE_BIT_UNUSED1 9 /* available for programmer */
#define _PAGE_BIT_IOMAP 10 /* flag used to indicate IO mapping */
#define _PAGE_BIT_UNUSED3 11
#define _PAGE_BIT_PAT_LARGE 12 /* On 2MB or 1GB pages */
#define _PAGE_BIT_SPECIAL _PAGE_BIT_UNUSED1
#define _PAGE_BIT_CPA_TEST _PAGE_BIT_UNUSED1
#define _PAGE_BIT_NX 63 /* No execute: only valid after cpuid check */
/* If _PAGE_BIT_PRESENT is clear, we use these: */
/* - if the user mapped it with PROT_NONE; pte_present gives true */
#define _PAGE_BIT_PROTNONE _PAGE_BIT_GLOBAL
/* - set: nonlinear file mapping, saved PTE; unset:swap */
#define _PAGE_BIT_FILE _PAGE_BIT_DIRTY
#define _PAGE_PRESENT (_AT(pteval_t, 1) << _PAGE_BIT_PRESENT)
#define _PAGE_RW (_AT(pteval_t, 1) << _PAGE_BIT_RW)
#define _PAGE_USER (_AT(pteval_t, 1) << _PAGE_BIT_USER)
#define _PAGE_PWT (_AT(pteval_t, 1) << _PAGE_BIT_PWT)
#define _PAGE_PCD (_AT(pteval_t, 1) << _PAGE_BIT_PCD)
#define _PAGE_ACCESSED (_AT(pteval_t, 1) << _PAGE_BIT_ACCESSED)
#define _PAGE_DIRTY (_AT(pteval_t, 1) << _PAGE_BIT_DIRTY)
#define _PAGE_PSE (_AT(pteval_t, 1) << _PAGE_BIT_PSE)
#define _PAGE_GLOBAL (_AT(pteval_t, 1) << _PAGE_BIT_GLOBAL)
#define _PAGE_UNUSED1 (_AT(pteval_t, 1) << _PAGE_BIT_UNUSED1)
#define _PAGE_IOMAP (_AT(pteval_t, 1) << _PAGE_BIT_IOMAP)
#define _PAGE_UNUSED3 (_AT(pteval_t, 1) << _PAGE_BIT_UNUSED3)
#define _PAGE_PAT (_AT(pteval_t, 1) << _PAGE_BIT_PAT)
#define _PAGE_PAT_LARGE (_AT(pteval_t, 1) << _PAGE_BIT_PAT_LARGE)
#define _PAGE_SPECIAL (_AT(pteval_t, 1) << _PAGE_BIT_SPECIAL)
#define _PAGE_CPA_TEST (_AT(pteval_t, 1) << _PAGE_BIT_CPA_TEST)
#define __HAVE_ARCH_PTE_SPECIAL
#if defined(CONFIG_X86_64) || defined(CONFIG_X86_PAE)
#define _PAGE_NX (_AT(pteval_t, 1) << _PAGE_BIT_NX)
#else
#define _PAGE_NX (_AT(pteval_t, 0))
#endif
#define _PAGE_FILE (_AT(pteval_t, 1) << _PAGE_BIT_FILE)
#define _PAGE_PROTNONE (_AT(pteval_t, 1) << _PAGE_BIT_PROTNONE)
#define _PAGE_TABLE (_PAGE_PRESENT | _PAGE_RW | _PAGE_USER | \
_PAGE_ACCESSED | _PAGE_DIRTY)
#define _KERNPG_TABLE (_PAGE_PRESENT | _PAGE_RW | _PAGE_ACCESSED | \
_PAGE_DIRTY)
/* Set of bits not changed in pte_modify */
#define _PAGE_CHG_MASK (PTE_PFN_MASK | _PAGE_PCD | _PAGE_PWT | \
_PAGE_SPECIAL | _PAGE_ACCESSED | _PAGE_DIRTY)
#define _PAGE_CACHE_MASK (_PAGE_PCD | _PAGE_PWT)
#define _PAGE_CACHE_WB (0)
#define _PAGE_CACHE_WC (_PAGE_PWT)
#define _PAGE_CACHE_UC_MINUS (_PAGE_PCD)
#define _PAGE_CACHE_UC (_PAGE_PCD | _PAGE_PWT)
#define PAGE_NONE __pgprot(_PAGE_PROTNONE | _PAGE_ACCESSED)
#define PAGE_SHARED __pgprot(_PAGE_PRESENT | _PAGE_RW | _PAGE_USER | \
_PAGE_ACCESSED | _PAGE_NX)
#define PAGE_SHARED_EXEC __pgprot(_PAGE_PRESENT | _PAGE_RW | \
_PAGE_USER | _PAGE_ACCESSED)
#define PAGE_COPY_NOEXEC __pgprot(_PAGE_PRESENT | _PAGE_USER | \
_PAGE_ACCESSED | _PAGE_NX)
#define PAGE_COPY_EXEC __pgprot(_PAGE_PRESENT | _PAGE_USER | \
_PAGE_ACCESSED)
#define PAGE_COPY PAGE_COPY_NOEXEC
#define PAGE_READONLY __pgprot(_PAGE_PRESENT | _PAGE_USER | \
_PAGE_ACCESSED | _PAGE_NX)
#define PAGE_READONLY_EXEC __pgprot(_PAGE_PRESENT | _PAGE_USER | \
_PAGE_ACCESSED)
#define __PAGE_KERNEL_EXEC \
(_PAGE_PRESENT | _PAGE_RW | _PAGE_DIRTY | _PAGE_ACCESSED | _PAGE_GLOBAL)
#define __PAGE_KERNEL (__PAGE_KERNEL_EXEC | _PAGE_NX)
#define __PAGE_KERNEL_RO (__PAGE_KERNEL & ~_PAGE_RW)
#define __PAGE_KERNEL_RX (__PAGE_KERNEL_EXEC & ~_PAGE_RW)
#define __PAGE_KERNEL_EXEC_NOCACHE (__PAGE_KERNEL_EXEC | _PAGE_PCD | _PAGE_PWT)
#define __PAGE_KERNEL_WC (__PAGE_KERNEL | _PAGE_CACHE_WC)
#define __PAGE_KERNEL_NOCACHE (__PAGE_KERNEL | _PAGE_PCD | _PAGE_PWT)
#define __PAGE_KERNEL_UC_MINUS (__PAGE_KERNEL | _PAGE_PCD)
#define __PAGE_KERNEL_VSYSCALL (__PAGE_KERNEL_RX | _PAGE_USER)
#define __PAGE_KERNEL_VSYSCALL_NOCACHE (__PAGE_KERNEL_VSYSCALL | _PAGE_PCD | _PAGE_PWT)
#define __PAGE_KERNEL_LARGE (__PAGE_KERNEL | _PAGE_PSE)
#define __PAGE_KERNEL_LARGE_NOCACHE (__PAGE_KERNEL | _PAGE_CACHE_UC | _PAGE_PSE)
#define __PAGE_KERNEL_LARGE_EXEC (__PAGE_KERNEL_EXEC | _PAGE_PSE)
#define __PAGE_KERNEL_IO (__PAGE_KERNEL | _PAGE_IOMAP)
#define __PAGE_KERNEL_IO_NOCACHE (__PAGE_KERNEL_NOCACHE | _PAGE_IOMAP)
#define __PAGE_KERNEL_IO_UC_MINUS (__PAGE_KERNEL_UC_MINUS | _PAGE_IOMAP)
#define __PAGE_KERNEL_IO_WC (__PAGE_KERNEL_WC | _PAGE_IOMAP)
#define PAGE_KERNEL __pgprot(__PAGE_KERNEL)
#define PAGE_KERNEL_RO __pgprot(__PAGE_KERNEL_RO)
#define PAGE_KERNEL_EXEC __pgprot(__PAGE_KERNEL_EXEC)
#define PAGE_KERNEL_RX __pgprot(__PAGE_KERNEL_RX)
#define PAGE_KERNEL_WC __pgprot(__PAGE_KERNEL_WC)
#define PAGE_KERNEL_NOCACHE __pgprot(__PAGE_KERNEL_NOCACHE)
#define PAGE_KERNEL_UC_MINUS __pgprot(__PAGE_KERNEL_UC_MINUS)
#define PAGE_KERNEL_EXEC_NOCACHE __pgprot(__PAGE_KERNEL_EXEC_NOCACHE)
#define PAGE_KERNEL_LARGE __pgprot(__PAGE_KERNEL_LARGE)
#define PAGE_KERNEL_LARGE_NOCACHE __pgprot(__PAGE_KERNEL_LARGE_NOCACHE)
#define PAGE_KERNEL_LARGE_EXEC __pgprot(__PAGE_KERNEL_LARGE_EXEC)
#define PAGE_KERNEL_VSYSCALL __pgprot(__PAGE_KERNEL_VSYSCALL)
#define PAGE_KERNEL_VSYSCALL_NOCACHE __pgprot(__PAGE_KERNEL_VSYSCALL_NOCACHE)
#define PAGE_KERNEL_IO __pgprot(__PAGE_KERNEL_IO)
#define PAGE_KERNEL_IO_NOCACHE __pgprot(__PAGE_KERNEL_IO_NOCACHE)
#define PAGE_KERNEL_IO_UC_MINUS __pgprot(__PAGE_KERNEL_IO_UC_MINUS)
#define PAGE_KERNEL_IO_WC __pgprot(__PAGE_KERNEL_IO_WC)
/* xwr */
#define __P000 PAGE_NONE
#define __P001 PAGE_READONLY
#define __P010 PAGE_COPY
#define __P011 PAGE_COPY
#define __P100 PAGE_READONLY_EXEC
#define __P101 PAGE_READONLY_EXEC
#define __P110 PAGE_COPY_EXEC
#define __P111 PAGE_COPY_EXEC
#define __S000 PAGE_NONE
#define __S001 PAGE_READONLY
#define __S010 PAGE_SHARED
#define __S011 PAGE_SHARED
#define __S100 PAGE_READONLY_EXEC
#define __S101 PAGE_READONLY_EXEC
#define __S110 PAGE_SHARED_EXEC
#define __S111 PAGE_SHARED_EXEC
/*
* early identity mapping pte attrib macros.
*/
#ifdef CONFIG_X86_64
#define __PAGE_KERNEL_IDENT_LARGE_EXEC __PAGE_KERNEL_LARGE_EXEC
#else
/*
* For PDE_IDENT_ATTR include USER bit. As the PDE and PTE protection
* bits are combined, this will alow user to access the high address mapped
* VDSO in the presence of CONFIG_COMPAT_VDSO
*/
#define PTE_IDENT_ATTR 0x003 /* PRESENT+RW */
#define PDE_IDENT_ATTR 0x067 /* PRESENT+RW+USER+DIRTY+ACCESSED */
#define PGD_IDENT_ATTR 0x001 /* PRESENT (no other attributes) */
#endif
/* /*
* Macro to mark a page protection value as UC- * Macro to mark a page protection value as UC-
...@@ -172,9 +15,6 @@ ...@@ -172,9 +15,6 @@
#ifndef __ASSEMBLY__ #ifndef __ASSEMBLY__
#define pgprot_writecombine pgprot_writecombine
extern pgprot_t pgprot_writecombine(pgprot_t prot);
/* /*
* ZERO_PAGE is a global shared page that is always zero: used * ZERO_PAGE is a global shared page that is always zero: used
* for zero-mapped memory areas etc.. * for zero-mapped memory areas etc..
...@@ -185,6 +25,66 @@ extern unsigned long empty_zero_page[PAGE_SIZE / sizeof(unsigned long)]; ...@@ -185,6 +25,66 @@ extern unsigned long empty_zero_page[PAGE_SIZE / sizeof(unsigned long)];
extern spinlock_t pgd_lock; extern spinlock_t pgd_lock;
extern struct list_head pgd_list; extern struct list_head pgd_list;
#ifdef CONFIG_PARAVIRT
#include <asm/paravirt.h>
#else /* !CONFIG_PARAVIRT */
#define set_pte(ptep, pte) native_set_pte(ptep, pte)
#define set_pte_at(mm, addr, ptep, pte) native_set_pte_at(mm, addr, ptep, pte)
#define set_pte_present(mm, addr, ptep, pte) \
native_set_pte_present(mm, addr, ptep, pte)
#define set_pte_atomic(ptep, pte) \
native_set_pte_atomic(ptep, pte)
#define set_pmd(pmdp, pmd) native_set_pmd(pmdp, pmd)
#ifndef __PAGETABLE_PUD_FOLDED
#define set_pgd(pgdp, pgd) native_set_pgd(pgdp, pgd)
#define pgd_clear(pgd) native_pgd_clear(pgd)
#endif
#ifndef set_pud
# define set_pud(pudp, pud) native_set_pud(pudp, pud)
#endif
#ifndef __PAGETABLE_PMD_FOLDED
#define pud_clear(pud) native_pud_clear(pud)
#endif
#define pte_clear(mm, addr, ptep) native_pte_clear(mm, addr, ptep)
#define pmd_clear(pmd) native_pmd_clear(pmd)
#define pte_update(mm, addr, ptep) do { } while (0)
#define pte_update_defer(mm, addr, ptep) do { } while (0)
static inline void __init paravirt_pagetable_setup_start(pgd_t *base)
{
native_pagetable_setup_start(base);
}
static inline void __init paravirt_pagetable_setup_done(pgd_t *base)
{
native_pagetable_setup_done(base);
}
#define pgd_val(x) native_pgd_val(x)
#define __pgd(x) native_make_pgd(x)
#ifndef __PAGETABLE_PUD_FOLDED
#define pud_val(x) native_pud_val(x)
#define __pud(x) native_make_pud(x)
#endif
#ifndef __PAGETABLE_PMD_FOLDED
#define pmd_val(x) native_pmd_val(x)
#define __pmd(x) native_make_pmd(x)
#endif
#define pte_val(x) native_pte_val(x)
#define __pte(x) native_make_pte(x)
#endif /* CONFIG_PARAVIRT */
/* /*
* The following only work if pte_present() is true. * The following only work if pte_present() is true.
* Undefined behaviour if not.. * Undefined behaviour if not..
...@@ -316,8 +216,6 @@ static inline pte_t pte_mkspecial(pte_t pte) ...@@ -316,8 +216,6 @@ static inline pte_t pte_mkspecial(pte_t pte)
return pte_set_flags(pte, _PAGE_SPECIAL); return pte_set_flags(pte, _PAGE_SPECIAL);
} }
extern pteval_t __supported_pte_mask;
/* /*
* Mask out unsupported bits in a present pgprot. Non-present pgprots * Mask out unsupported bits in a present pgprot. Non-present pgprots
* can use those bits for other purposes, so leave them be. * can use those bits for other purposes, so leave them be.
...@@ -390,75 +288,6 @@ static inline int is_new_memtype_allowed(unsigned long flags, ...@@ -390,75 +288,6 @@ static inline int is_new_memtype_allowed(unsigned long flags,
return 1; return 1;
} }
#ifndef __ASSEMBLY__
/* Indicate that x86 has its own track and untrack pfn vma functions */
#define __HAVE_PFNMAP_TRACKING
#define __HAVE_PHYS_MEM_ACCESS_PROT
struct file;
pgprot_t phys_mem_access_prot(struct file *file, unsigned long pfn,
unsigned long size, pgprot_t vma_prot);
int phys_mem_access_prot_allowed(struct file *file, unsigned long pfn,
unsigned long size, pgprot_t *vma_prot);
#endif
/* Install a pte for a particular vaddr in kernel space. */
void set_pte_vaddr(unsigned long vaddr, pte_t pte);
#ifdef CONFIG_X86_32
extern void native_pagetable_setup_start(pgd_t *base);
extern void native_pagetable_setup_done(pgd_t *base);
#else
static inline void native_pagetable_setup_start(pgd_t *base) {}
static inline void native_pagetable_setup_done(pgd_t *base) {}
#endif
struct seq_file;
extern void arch_report_meminfo(struct seq_file *m);
#ifdef CONFIG_PARAVIRT
#include <asm/paravirt.h>
#else /* !CONFIG_PARAVIRT */
#define set_pte(ptep, pte) native_set_pte(ptep, pte)
#define set_pte_at(mm, addr, ptep, pte) native_set_pte_at(mm, addr, ptep, pte)
#define set_pte_present(mm, addr, ptep, pte) \
native_set_pte_present(mm, addr, ptep, pte)
#define set_pte_atomic(ptep, pte) \
native_set_pte_atomic(ptep, pte)
#define set_pmd(pmdp, pmd) native_set_pmd(pmdp, pmd)
#ifndef __PAGETABLE_PUD_FOLDED
#define set_pgd(pgdp, pgd) native_set_pgd(pgdp, pgd)
#define pgd_clear(pgd) native_pgd_clear(pgd)
#endif
#ifndef set_pud
# define set_pud(pudp, pud) native_set_pud(pudp, pud)
#endif
#ifndef __PAGETABLE_PMD_FOLDED
#define pud_clear(pud) native_pud_clear(pud)
#endif
#define pte_clear(mm, addr, ptep) native_pte_clear(mm, addr, ptep)
#define pmd_clear(pmd) native_pmd_clear(pmd)
#define pte_update(mm, addr, ptep) do { } while (0)
#define pte_update_defer(mm, addr, ptep) do { } while (0)
static inline void __init paravirt_pagetable_setup_start(pgd_t *base)
{
native_pagetable_setup_start(base);
}
static inline void __init paravirt_pagetable_setup_done(pgd_t *base)
{
native_pagetable_setup_done(base);
}
#endif /* CONFIG_PARAVIRT */
#endif /* __ASSEMBLY__ */ #endif /* __ASSEMBLY__ */
#ifdef CONFIG_X86_32 #ifdef CONFIG_X86_32
...@@ -600,7 +429,7 @@ static inline unsigned long pmd_pfn(pmd_t pmd) ...@@ -600,7 +429,7 @@ static inline unsigned long pmd_pfn(pmd_t pmd)
static inline int pud_large(pud_t pud) static inline int pud_large(pud_t pud)
{ {
return (pud_flags(pud) & (_PAGE_PSE | _PAGE_PRESENT)) == return (pud_val(pud) & (_PAGE_PSE | _PAGE_PRESENT)) ==
(_PAGE_PSE | _PAGE_PRESENT); (_PAGE_PSE | _PAGE_PRESENT);
} }
...@@ -608,6 +437,11 @@ static inline int pud_bad(pud_t pud) ...@@ -608,6 +437,11 @@ static inline int pud_bad(pud_t pud)
{ {
return (pud_flags(pud) & ~(_KERNPG_TABLE | _PAGE_USER)) != 0; return (pud_flags(pud) & ~(_KERNPG_TABLE | _PAGE_USER)) != 0;
} }
#else
static inline int pud_large(pud_t pud)
{
return 0;
}
#endif /* PAGETABLE_LEVELS > 2 */ #endif /* PAGETABLE_LEVELS > 2 */
#if PAGETABLE_LEVELS > 3 #if PAGETABLE_LEVELS > 3
...@@ -676,28 +510,6 @@ static inline int pgd_none(pgd_t pgd) ...@@ -676,28 +510,6 @@ static inline int pgd_none(pgd_t pgd)
#ifndef __ASSEMBLY__ #ifndef __ASSEMBLY__
enum {
PG_LEVEL_NONE,
PG_LEVEL_4K,
PG_LEVEL_2M,
PG_LEVEL_1G,
PG_LEVEL_NUM
};
#ifdef CONFIG_PROC_FS
extern void update_page_count(int level, unsigned long pages);
#else
static inline void update_page_count(int level, unsigned long pages) { }
#endif
/*
* Helper function that returns the kernel pagetable entry controlling
* the virtual address 'address'. NULL means no pagetable entry present.
* NOTE: the return type is pte_t but if the pmd is PSE then we return it
* as a pte too.
*/
extern pte_t *lookup_address(unsigned long address, unsigned int *level);
/* local pte updates need not use xchg for locking */ /* local pte updates need not use xchg for locking */
static inline pte_t native_local_ptep_get_and_clear(pte_t *ptep) static inline pte_t native_local_ptep_get_and_clear(pte_t *ptep)
{ {
......
arch/x86/include/asm/pgtable_32.h
View file @ b233969e
#ifndef _ASM_X86_PGTABLE_32_H #ifndef _ASM_X86_PGTABLE_32_H
#define _ASM_X86_PGTABLE_32_H #define _ASM_X86_PGTABLE_32_H
#include <asm/pgtable_32_types.h>
/* /*
* The Linux memory management assumes a three-level page table setup. On * The Linux memory management assumes a three-level page table setup. On
...@@ -33,47 +34,6 @@ void paging_init(void); ...@@ -33,47 +34,6 @@ void paging_init(void);
extern void set_pmd_pfn(unsigned long, unsigned long, pgprot_t); extern void set_pmd_pfn(unsigned long, unsigned long, pgprot_t);
/*
* The Linux x86 paging architecture is 'compile-time dual-mode', it
* implements both the traditional 2-level x86 page tables and the
* newer 3-level PAE-mode page tables.
*/
#ifdef CONFIG_X86_PAE
# include <asm/pgtable-3level-defs.h>
# define PMD_SIZE (1UL << PMD_SHIFT)
# define PMD_MASK (~(PMD_SIZE - 1))
#else
# include <asm/pgtable-2level-defs.h>
#endif
#define PGDIR_SIZE (1UL << PGDIR_SHIFT)
#define PGDIR_MASK (~(PGDIR_SIZE - 1))
/* Just any arbitrary offset to the start of the vmalloc VM area: the
* current 8MB value just means that there will be a 8MB "hole" after the
* physical memory until the kernel virtual memory starts. That means that
* any out-of-bounds memory accesses will hopefully be caught.
* The vmalloc() routines leaves a hole of 4kB between each vmalloced
* area for the same reason. ;)
*/
#define VMALLOC_OFFSET (8 * 1024 * 1024)
#define VMALLOC_START ((unsigned long)high_memory + VMALLOC_OFFSET)
#ifdef CONFIG_X86_PAE
#define LAST_PKMAP 512
#else
#define LAST_PKMAP 1024
#endif
#define PKMAP_BASE ((FIXADDR_BOOT_START - PAGE_SIZE * (LAST_PKMAP + 1)) \
& PMD_MASK)
#ifdef CONFIG_HIGHMEM
# define VMALLOC_END (PKMAP_BASE - 2 * PAGE_SIZE)
#else
# define VMALLOC_END (FIXADDR_START - 2 * PAGE_SIZE)
#endif
#define MAXMEM (VMALLOC_END - PAGE_OFFSET - __VMALLOC_RESERVE)
/* /*
* Define this if things work differently on an i386 and an i486: * Define this if things work differently on an i386 and an i486:
......
arch/x86/include/asm/pgtable_32_types.h 0 → 100644
View file @ b233969e
#ifndef _ASM_X86_PGTABLE_32_DEFS_H
#define _ASM_X86_PGTABLE_32_DEFS_H
/*
* The Linux x86 paging architecture is 'compile-time dual-mode', it
* implements both the traditional 2-level x86 page tables and the
* newer 3-level PAE-mode page tables.
*/
#ifdef CONFIG_X86_PAE
# include <asm/pgtable-3level_types.h>
# define PMD_SIZE (1UL << PMD_SHIFT)
# define PMD_MASK (~(PMD_SIZE - 1))
#else
# include <asm/pgtable-2level_types.h>
#endif
#define PGDIR_SIZE (1UL << PGDIR_SHIFT)
#define PGDIR_MASK (~(PGDIR_SIZE - 1))
/* Just any arbitrary offset to the start of the vmalloc VM area: the
* current 8MB value just means that there will be a 8MB "hole" after the
* physical memory until the kernel virtual memory starts. That means that
* any out-of-bounds memory accesses will hopefully be caught.
* The vmalloc() routines leaves a hole of 4kB between each vmalloced
* area for the same reason. ;)
*/
#define VMALLOC_OFFSET (8 * 1024 * 1024)
#define VMALLOC_START ((unsigned long)high_memory + VMALLOC_OFFSET)
#ifdef CONFIG_X86_PAE
#define LAST_PKMAP 512
#else
#define LAST_PKMAP 1024
#endif
#define PKMAP_BASE ((FIXADDR_BOOT_START - PAGE_SIZE * (LAST_PKMAP + 1)) \
& PMD_MASK)
#ifdef CONFIG_HIGHMEM
# define VMALLOC_END (PKMAP_BASE - 2 * PAGE_SIZE)
#else
# define VMALLOC_END (FIXADDR_START - 2 * PAGE_SIZE)
#endif
#define MAXMEM (VMALLOC_END - PAGE_OFFSET - __VMALLOC_RESERVE)
#endif /* _ASM_X86_PGTABLE_32_DEFS_H */
arch/x86/include/asm/pgtable_64.h
View file @ b233969e
...@@ -2,6 +2,8 @@ ...@@ -2,6 +2,8 @@
#define _ASM_X86_PGTABLE_64_H #define _ASM_X86_PGTABLE_64_H
#include <linux/const.h> #include <linux/const.h>
#include <asm/pgtable_64_types.h>
#ifndef __ASSEMBLY__ #ifndef __ASSEMBLY__
/* /*
...@@ -25,32 +27,6 @@ extern void paging_init(void); ...@@ -25,32 +27,6 @@ extern void paging_init(void);
#endif /* !__ASSEMBLY__ */ #endif /* !__ASSEMBLY__ */
#define SHARED_KERNEL_PMD 0
/*
* PGDIR_SHIFT determines what a top-level page table entry can map
*/
#define PGDIR_SHIFT 39
#define PTRS_PER_PGD 512
/*
* 3rd level page
*/
#define PUD_SHIFT 30
#define PTRS_PER_PUD 512
/*
* PMD_SHIFT determines the size of the area a middle-level
* page table can map
*/
#define PMD_SHIFT 21
#define PTRS_PER_PMD 512
/*
* entries per page directory level
*/
#define PTRS_PER_PTE 512
#ifndef __ASSEMBLY__ #ifndef __ASSEMBLY__
#define pte_ERROR(e) \ #define pte_ERROR(e) \
...@@ -130,26 +106,6 @@ static inline void native_pgd_clear(pgd_t *pgd) ...@@ -130,26 +106,6 @@ static inline void native_pgd_clear(pgd_t *pgd)
native_set_pgd(pgd, native_make_pgd(0)); native_set_pgd(pgd, native_make_pgd(0));
} }
#endif /* !__ASSEMBLY__ */
#define PMD_SIZE (_AC(1, UL) << PMD_SHIFT)
#define PMD_MASK (~(PMD_SIZE - 1))
#define PUD_SIZE (_AC(1, UL) << PUD_SHIFT)
#define PUD_MASK (~(PUD_SIZE - 1))
#define PGDIR_SIZE (_AC(1, UL) << PGDIR_SHIFT)
#define PGDIR_MASK (~(PGDIR_SIZE - 1))
#define MAXMEM _AC(__AC(1, UL) << MAX_PHYSMEM_BITS, UL)
#define VMALLOC_START _AC(0xffffc20000000000, UL)
#define VMALLOC_END _AC(0xffffe1ffffffffff, UL)
#define VMEMMAP_START _AC(0xffffe20000000000, UL)
#define MODULES_VADDR _AC(0xffffffffa0000000, UL)
#define MODULES_END _AC(0xffffffffff000000, UL)
#define MODULES_LEN (MODULES_END - MODULES_VADDR)
#ifndef __ASSEMBLY__
/* /*
* Conversion functions: convert a page and protection to a page entry, * Conversion functions: convert a page and protection to a page entry,
* and a page entry and page directory to the page they refer to. * and a page entry and page directory to the page they refer to.
......
arch/x86/include/asm/pgtable_64_types.h 0 → 100644
View file @ b233969e
#ifndef _ASM_X86_PGTABLE_64_DEFS_H
#define _ASM_X86_PGTABLE_64_DEFS_H
#ifndef __ASSEMBLY__
#include <linux/types.h>
/*
* These are used to make use of C type-checking..
*/
typedef unsigned long pteval_t;
typedef unsigned long pmdval_t;
typedef unsigned long pudval_t;
typedef unsigned long pgdval_t;
typedef unsigned long pgprotval_t;
typedef struct { pteval_t pte; } pte_t;
#endif /* !__ASSEMBLY__ */
#define SHARED_KERNEL_PMD 0
/*
* PGDIR_SHIFT determines what a top-level page table entry can map
*/
#define PGDIR_SHIFT 39
#define PTRS_PER_PGD 512
/*
* 3rd level page
*/
#define PUD_SHIFT 30
#define PTRS_PER_PUD 512
/*
* PMD_SHIFT determines the size of the area a middle-level
* page table can map
*/
#define PMD_SHIFT 21
#define PTRS_PER_PMD 512
/*
* entries per page directory level
*/
#define PTRS_PER_PTE 512
#define PMD_SIZE (_AC(1, UL) << PMD_SHIFT)
#define PMD_MASK (~(PMD_SIZE - 1))
#define PUD_SIZE (_AC(1, UL) << PUD_SHIFT)
#define PUD_MASK (~(PUD_SIZE - 1))
#define PGDIR_SIZE (_AC(1, UL) << PGDIR_SHIFT)
#define PGDIR_MASK (~(PGDIR_SIZE - 1))
#define MAXMEM _AC(__AC(1, UL) << MAX_PHYSMEM_BITS, UL)
#define VMALLOC_START _AC(0xffffc20000000000, UL)
#define VMALLOC_END _AC(0xffffe1ffffffffff, UL)
#define VMEMMAP_START _AC(0xffffe20000000000, UL)
#define MODULES_VADDR _AC(0xffffffffa0000000, UL)
#define MODULES_END _AC(0xffffffffff000000, UL)
#define MODULES_LEN (MODULES_END - MODULES_VADDR)
#endif /* _ASM_X86_PGTABLE_64_DEFS_H */
arch/x86/include/asm/pgtable_types.h 0 → 100644
View file @ b233969e
#ifndef _ASM_X86_PGTABLE_DEFS_H
#define _ASM_X86_PGTABLE_DEFS_H
#include <linux/const.h>
#define FIRST_USER_ADDRESS 0
#define _PAGE_BIT_PRESENT 0 /* is present */
#define _PAGE_BIT_RW 1 /* writeable */
#define _PAGE_BIT_USER 2 /* userspace addressable */
#define _PAGE_BIT_PWT 3 /* page write through */
#define _PAGE_BIT_PCD 4 /* page cache disabled */
#define _PAGE_BIT_ACCESSED 5 /* was accessed (raised by CPU) */
#define _PAGE_BIT_DIRTY 6 /* was written to (raised by CPU) */
#define _PAGE_BIT_PSE 7 /* 4 MB (or 2MB) page */
#define _PAGE_BIT_PAT 7 /* on 4KB pages */
#define _PAGE_BIT_GLOBAL 8 /* Global TLB entry PPro+ */
#define _PAGE_BIT_UNUSED1 9 /* available for programmer */
#define _PAGE_BIT_IOMAP 10 /* flag used to indicate IO mapping */
#define _PAGE_BIT_UNUSED3 11
#define _PAGE_BIT_PAT_LARGE 12 /* On 2MB or 1GB pages */
#define _PAGE_BIT_SPECIAL _PAGE_BIT_UNUSED1
#define _PAGE_BIT_CPA_TEST _PAGE_BIT_UNUSED1
#define _PAGE_BIT_NX 63 /* No execute: only valid after cpuid check */
/* If _PAGE_BIT_PRESENT is clear, we use these: */
/* - if the user mapped it with PROT_NONE; pte_present gives true */
#define _PAGE_BIT_PROTNONE _PAGE_BIT_GLOBAL
/* - set: nonlinear file mapping, saved PTE; unset:swap */
#define _PAGE_BIT_FILE _PAGE_BIT_DIRTY
#define _PAGE_PRESENT (_AT(pteval_t, 1) << _PAGE_BIT_PRESENT)
#define _PAGE_RW (_AT(pteval_t, 1) << _PAGE_BIT_RW)
#define _PAGE_USER (_AT(pteval_t, 1) << _PAGE_BIT_USER)
#define _PAGE_PWT (_AT(pteval_t, 1) << _PAGE_BIT_PWT)
#define _PAGE_PCD (_AT(pteval_t, 1) << _PAGE_BIT_PCD)
#define _PAGE_ACCESSED (_AT(pteval_t, 1) << _PAGE_BIT_ACCESSED)
#define _PAGE_DIRTY (_AT(pteval_t, 1) << _PAGE_BIT_DIRTY)
#define _PAGE_PSE (_AT(pteval_t, 1) << _PAGE_BIT_PSE)
#define _PAGE_GLOBAL (_AT(pteval_t, 1) << _PAGE_BIT_GLOBAL)
#define _PAGE_UNUSED1 (_AT(pteval_t, 1) << _PAGE_BIT_UNUSED1)
#define _PAGE_IOMAP (_AT(pteval_t, 1) << _PAGE_BIT_IOMAP)
#define _PAGE_UNUSED3 (_AT(pteval_t, 1) << _PAGE_BIT_UNUSED3)
#define _PAGE_PAT (_AT(pteval_t, 1) << _PAGE_BIT_PAT)
#define _PAGE_PAT_LARGE (_AT(pteval_t, 1) << _PAGE_BIT_PAT_LARGE)
#define _PAGE_SPECIAL (_AT(pteval_t, 1) << _PAGE_BIT_SPECIAL)
#define _PAGE_CPA_TEST (_AT(pteval_t, 1) << _PAGE_BIT_CPA_TEST)
#define __HAVE_ARCH_PTE_SPECIAL
#if defined(CONFIG_X86_64) || defined(CONFIG_X86_PAE)
#define _PAGE_NX (_AT(pteval_t, 1) << _PAGE_BIT_NX)
#else
#define _PAGE_NX (_AT(pteval_t, 0))
#endif
#define _PAGE_FILE (_AT(pteval_t, 1) << _PAGE_BIT_FILE)
#define _PAGE_PROTNONE (_AT(pteval_t, 1) << _PAGE_BIT_PROTNONE)
#define _PAGE_TABLE (_PAGE_PRESENT | _PAGE_RW | _PAGE_USER | \
_PAGE_ACCESSED | _PAGE_DIRTY)
#define _KERNPG_TABLE (_PAGE_PRESENT | _PAGE_RW | _PAGE_ACCESSED | \
_PAGE_DIRTY)
/* Set of bits not changed in pte_modify */
#define _PAGE_CHG_MASK (PTE_PFN_MASK | _PAGE_PCD | _PAGE_PWT | \
_PAGE_SPECIAL | _PAGE_ACCESSED | _PAGE_DIRTY)
#define _PAGE_CACHE_MASK (_PAGE_PCD | _PAGE_PWT)
#define _PAGE_CACHE_WB (0)
#define _PAGE_CACHE_WC (_PAGE_PWT)
#define _PAGE_CACHE_UC_MINUS (_PAGE_PCD)
#define _PAGE_CACHE_UC (_PAGE_PCD | _PAGE_PWT)
#define PAGE_NONE __pgprot(_PAGE_PROTNONE | _PAGE_ACCESSED)
#define PAGE_SHARED __pgprot(_PAGE_PRESENT | _PAGE_RW | _PAGE_USER | \
_PAGE_ACCESSED | _PAGE_NX)
#define PAGE_SHARED_EXEC __pgprot(_PAGE_PRESENT | _PAGE_RW | \
_PAGE_USER | _PAGE_ACCESSED)
#define PAGE_COPY_NOEXEC __pgprot(_PAGE_PRESENT | _PAGE_USER | \
_PAGE_ACCESSED | _PAGE_NX)
#define PAGE_COPY_EXEC __pgprot(_PAGE_PRESENT | _PAGE_USER | \
_PAGE_ACCESSED)
#define PAGE_COPY PAGE_COPY_NOEXEC
#define PAGE_READONLY __pgprot(_PAGE_PRESENT | _PAGE_USER | \
_PAGE_ACCESSED | _PAGE_NX)
#define PAGE_READONLY_EXEC __pgprot(_PAGE_PRESENT | _PAGE_USER | \
_PAGE_ACCESSED)
#define __PAGE_KERNEL_EXEC \
(_PAGE_PRESENT | _PAGE_RW | _PAGE_DIRTY | _PAGE_ACCESSED | _PAGE_GLOBAL)
#define __PAGE_KERNEL (__PAGE_KERNEL_EXEC | _PAGE_NX)
#define __PAGE_KERNEL_RO (__PAGE_KERNEL & ~_PAGE_RW)
#define __PAGE_KERNEL_RX (__PAGE_KERNEL_EXEC & ~_PAGE_RW)
#define __PAGE_KERNEL_EXEC_NOCACHE (__PAGE_KERNEL_EXEC | _PAGE_PCD | _PAGE_PWT)
#define __PAGE_KERNEL_WC (__PAGE_KERNEL | _PAGE_CACHE_WC)
#define __PAGE_KERNEL_NOCACHE (__PAGE_KERNEL | _PAGE_PCD | _PAGE_PWT)
#define __PAGE_KERNEL_UC_MINUS (__PAGE_KERNEL | _PAGE_PCD)
#define __PAGE_KERNEL_VSYSCALL (__PAGE_KERNEL_RX | _PAGE_USER)
#define __PAGE_KERNEL_VSYSCALL_NOCACHE (__PAGE_KERNEL_VSYSCALL | _PAGE_PCD | _PAGE_PWT)
#define __PAGE_KERNEL_LARGE (__PAGE_KERNEL | _PAGE_PSE)
#define __PAGE_KERNEL_LARGE_NOCACHE (__PAGE_KERNEL | _PAGE_CACHE_UC | _PAGE_PSE)
#define __PAGE_KERNEL_LARGE_EXEC (__PAGE_KERNEL_EXEC | _PAGE_PSE)
#define __PAGE_KERNEL_IO (__PAGE_KERNEL | _PAGE_IOMAP)
#define __PAGE_KERNEL_IO_NOCACHE (__PAGE_KERNEL_NOCACHE | _PAGE_IOMAP)
#define __PAGE_KERNEL_IO_UC_MINUS (__PAGE_KERNEL_UC_MINUS | _PAGE_IOMAP)
#define __PAGE_KERNEL_IO_WC (__PAGE_KERNEL_WC | _PAGE_IOMAP)
#define PAGE_KERNEL __pgprot(__PAGE_KERNEL)
#define PAGE_KERNEL_RO __pgprot(__PAGE_KERNEL_RO)
#define PAGE_KERNEL_EXEC __pgprot(__PAGE_KERNEL_EXEC)
#define PAGE_KERNEL_RX __pgprot(__PAGE_KERNEL_RX)
#define PAGE_KERNEL_WC __pgprot(__PAGE_KERNEL_WC)
#define PAGE_KERNEL_NOCACHE __pgprot(__PAGE_KERNEL_NOCACHE)
#define PAGE_KERNEL_UC_MINUS __pgprot(__PAGE_KERNEL_UC_MINUS)
#define PAGE_KERNEL_EXEC_NOCACHE __pgprot(__PAGE_KERNEL_EXEC_NOCACHE)
#define PAGE_KERNEL_LARGE __pgprot(__PAGE_KERNEL_LARGE)
#define PAGE_KERNEL_LARGE_NOCACHE __pgprot(__PAGE_KERNEL_LARGE_NOCACHE)
#define PAGE_KERNEL_LARGE_EXEC __pgprot(__PAGE_KERNEL_LARGE_EXEC)
#define PAGE_KERNEL_VSYSCALL __pgprot(__PAGE_KERNEL_VSYSCALL)
#define PAGE_KERNEL_VSYSCALL_NOCACHE __pgprot(__PAGE_KERNEL_VSYSCALL_NOCACHE)
#define PAGE_KERNEL_IO __pgprot(__PAGE_KERNEL_IO)
#define PAGE_KERNEL_IO_NOCACHE __pgprot(__PAGE_KERNEL_IO_NOCACHE)
#define PAGE_KERNEL_IO_UC_MINUS __pgprot(__PAGE_KERNEL_IO_UC_MINUS)
#define PAGE_KERNEL_IO_WC __pgprot(__PAGE_KERNEL_IO_WC)
/* xwr */
#define __P000 PAGE_NONE
#define __P001 PAGE_READONLY
#define __P010 PAGE_COPY
#define __P011 PAGE_COPY
#define __P100 PAGE_READONLY_EXEC
#define __P101 PAGE_READONLY_EXEC
#define __P110 PAGE_COPY_EXEC
#define __P111 PAGE_COPY_EXEC
#define __S000 PAGE_NONE
#define __S001 PAGE_READONLY
#define __S010 PAGE_SHARED
#define __S011 PAGE_SHARED
#define __S100 PAGE_READONLY_EXEC
#define __S101 PAGE_READONLY_EXEC
#define __S110 PAGE_SHARED_EXEC
#define __S111 PAGE_SHARED_EXEC
/*
* early identity mapping pte attrib macros.
*/
#ifdef CONFIG_X86_64
#define __PAGE_KERNEL_IDENT_LARGE_EXEC __PAGE_KERNEL_LARGE_EXEC
#else
/*
* For PDE_IDENT_ATTR include USER bit. As the PDE and PTE protection
* bits are combined, this will alow user to access the high address mapped
* VDSO in the presence of CONFIG_COMPAT_VDSO
*/
#define PTE_IDENT_ATTR 0x003 /* PRESENT+RW */
#define PDE_IDENT_ATTR 0x067 /* PRESENT+RW+USER+DIRTY+ACCESSED */
#define PGD_IDENT_ATTR 0x001 /* PRESENT (no other attributes) */
#endif
#ifdef CONFIG_X86_32
# include "pgtable_32_types.h"
#else
# include "pgtable_64_types.h"
#endif
#ifndef __ASSEMBLY__
#include <linux/types.h>
typedef struct pgprot { pgprotval_t pgprot; } pgprot_t;
typedef struct { pgdval_t pgd; } pgd_t;
static inline pgd_t native_make_pgd(pgdval_t val)
{
return (pgd_t) { val };
}
static inline pgdval_t native_pgd_val(pgd_t pgd)
{
return pgd.pgd;
}
static inline pgdval_t pgd_flags(pgd_t pgd)
{
return native_pgd_val(pgd) & PTE_FLAGS_MASK;
}
#if PAGETABLE_LEVELS > 3
typedef struct { pudval_t pud; } pud_t;
static inline pud_t native_make_pud(pmdval_t val)
{
return (pud_t) { val };
}
static inline pudval_t native_pud_val(pud_t pud)
{
return pud.pud;
}
#else
#include <asm-generic/pgtable-nopud.h>
static inline pudval_t native_pud_val(pud_t pud)
{
return native_pgd_val(pud.pgd);
}
#endif
#if PAGETABLE_LEVELS > 2
typedef struct { pmdval_t pmd; } pmd_t;
static inline pmd_t native_make_pmd(pmdval_t val)
{
return (pmd_t) { val };
}
static inline pmdval_t native_pmd_val(pmd_t pmd)
{
return pmd.pmd;
}
#else
#include <asm-generic/pgtable-nopmd.h>
static inline pmdval_t native_pmd_val(pmd_t pmd)
{
return native_pgd_val(pmd.pud.pgd);
}
#endif
static inline pudval_t pud_flags(pud_t pud)
{
return native_pud_val(pud) & PTE_FLAGS_MASK;
}
static inline pmdval_t pmd_flags(pmd_t pmd)
{
return native_pmd_val(pmd) & PTE_FLAGS_MASK;
}
static inline pte_t native_make_pte(pteval_t val)
{
return (pte_t) { .pte = val };
}
static inline pteval_t native_pte_val(pte_t pte)
{
return pte.pte;
}
static inline pteval_t pte_flags(pte_t pte)
{
return native_pte_val(pte) & PTE_FLAGS_MASK;
}
#define pgprot_val(x) ((x).pgprot)
#define __pgprot(x) ((pgprot_t) { (x) } )
typedef struct page *pgtable_t;
extern pteval_t __supported_pte_mask;
extern int nx_enabled;
#define pgprot_writecombine pgprot_writecombine
extern pgprot_t pgprot_writecombine(pgprot_t prot);
/* Indicate that x86 has its own track and untrack pfn vma functions */
#define __HAVE_PFNMAP_TRACKING
#define __HAVE_PHYS_MEM_ACCESS_PROT
struct file;
pgprot_t phys_mem_access_prot(struct file *file, unsigned long pfn,
unsigned long size, pgprot_t vma_prot);
int phys_mem_access_prot_allowed(struct file *file, unsigned long pfn,
unsigned long size, pgprot_t *vma_prot);
/* Install a pte for a particular vaddr in kernel space. */
void set_pte_vaddr(unsigned long vaddr, pte_t pte);
#ifdef CONFIG_X86_32
extern void native_pagetable_setup_start(pgd_t *base);
extern void native_pagetable_setup_done(pgd_t *base);
#else
static inline void native_pagetable_setup_start(pgd_t *base) {}
static inline void native_pagetable_setup_done(pgd_t *base) {}
#endif
struct seq_file;
extern void arch_report_meminfo(struct seq_file *m);
enum {
PG_LEVEL_NONE,
PG_LEVEL_4K,
PG_LEVEL_2M,
PG_LEVEL_1G,
PG_LEVEL_NUM
};
#ifdef CONFIG_PROC_FS
extern void update_page_count(int level, unsigned long pages);
#else
static inline void update_page_count(int level, unsigned long pages) { }
#endif
/*
* Helper function that returns the kernel pagetable entry controlling
* the virtual address 'address'. NULL means no pagetable entry present.
* NOTE: the return type is pte_t but if the pmd is PSE then we return it
* as a pte too.
*/
extern pte_t *lookup_address(unsigned long address, unsigned int *level);
#endif /* !__ASSEMBLY__ */
#endif /* _ASM_X86_PGTABLE_DEFS_H */
arch/x86/include/asm/processor.h
View file @ b233969e
...@@ -16,6 +16,7 @@ struct mm_struct; ...@@ -16,6 +16,7 @@ struct mm_struct;
#include <asm/cpufeature.h> #include <asm/cpufeature.h>
#include <asm/system.h> #include <asm/system.h>
#include <asm/page.h> #include <asm/page.h>
#include <asm/pgtable_types.h>
#include <asm/percpu.h> #include <asm/percpu.h>
#include <asm/msr.h> #include <asm/msr.h>
#include <asm/desc_defs.h> #include <asm/desc_defs.h>
......
arch/x86/mach-voyager/voyager_smp.c
View file @ b233969e
...@@ -1747,10 +1747,11 @@ static void __cpuinit voyager_smp_prepare_boot_cpu(void) ...@@ -1747,10 +1747,11 @@ static void __cpuinit voyager_smp_prepare_boot_cpu(void)
int cpu = smp_processor_id(); int cpu = smp_processor_id();
switch_to_new_gdt(cpu); switch_to_new_gdt(cpu);
cpu_online_map = cpumask_of_cpu(smp_processor_id()); cpu_set(cpu, cpu_online_map);
cpu_callout_map = cpumask_of_cpu(smp_processor_id()); cpu_set(cpu, cpu_callout_map);
cpu_callin_map = CPU_MASK_NONE; cpu_set(cpu, cpu_possible_map);
cpu_present_map = cpumask_of_cpu(smp_processor_id()); cpu_set(cpu, cpu_present_map);
} }
static int __cpuinit voyager_cpu_up(unsigned int cpu) static int __cpuinit voyager_cpu_up(unsigned int cpu)
......
arch/x86/mm/fault.c
View file @ b233969e
...@@ -851,6 +851,7 @@ void __kprobes do_page_fault(struct pt_regs *regs, unsigned long error_code) ...@@ -851,6 +851,7 @@ void __kprobes do_page_fault(struct pt_regs *regs, unsigned long error_code)
return; return;
} }
/* kprobes don't want to hook the spurious faults. */
if (unlikely(notify_page_fault(regs))) if (unlikely(notify_page_fault(regs)))
return; return;
/* /*
......
Markdown is supported
0% or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment
GitLab Nexedi Edition | About GitLab | About Nexedi | 沪ICP备2021021310号-2 | 沪ICP备2021021310号-7