mirror of
https://github.com/xen-project/xen.git
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Emmanuel Ackaouy
a62512128b
Make some arch-specific #defines for page table handling available unconditionally, add a suffix to avoid name clashes. The versions without suffix are defined depending on the architecture like they used to, so code using them continues to work. Signed-off-by: Gerd Hoffmann <kraxel@suse.de> --- tools/libxc/xg_private.h | 114 +++++++++++++++++++++++++++-------------------- 1 file changed, 67 insertions(+), 47 deletions(-)
231 lines
7.1 KiB
C
231 lines
7.1 KiB
C
#ifndef XG_PRIVATE_H
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#define XG_PRIVATE_H
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#include <unistd.h>
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#include <errno.h>
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#include <fcntl.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <sys/mman.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include "xenctrl.h"
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#include "xenguest.h"
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#include "xc_private.h"
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#include <xen/sys/privcmd.h>
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#include <xen/memory.h>
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#include <xen/elfnote.h>
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#ifndef ELFSIZE
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#include <limits.h>
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#if UINT_MAX == ULONG_MAX
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#define ELFSIZE 32
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#else
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#define ELFSIZE 64
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#endif
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#endif
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char *xc_read_image(const char *filename, unsigned long *size);
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char *xc_inflate_buffer(const char *in_buf,
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unsigned long in_size,
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unsigned long *out_size);
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unsigned long csum_page (void * page);
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#define _PAGE_PRESENT 0x001
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#define _PAGE_RW 0x002
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#define _PAGE_USER 0x004
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#define _PAGE_PWT 0x008
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#define _PAGE_PCD 0x010
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#define _PAGE_ACCESSED 0x020
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#define _PAGE_DIRTY 0x040
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#define _PAGE_PAT 0x080
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#define _PAGE_PSE 0x080
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#define _PAGE_GLOBAL 0x100
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#define L1_PAGETABLE_SHIFT_I386 12
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#define L2_PAGETABLE_SHIFT_I386 22
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#define L1_PAGETABLE_ENTRIES_I386 1024
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#define L2_PAGETABLE_ENTRIES_I386 1024
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#define L1_PAGETABLE_SHIFT_PAE 12
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#define L2_PAGETABLE_SHIFT_PAE 21
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#define L3_PAGETABLE_SHIFT_PAE 30
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#define L1_PAGETABLE_ENTRIES_PAE 512
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#define L2_PAGETABLE_ENTRIES_PAE 512
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#define L3_PAGETABLE_ENTRIES_PAE 4
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#define L1_PAGETABLE_SHIFT_X86_64 12
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#define L2_PAGETABLE_SHIFT_X86_64 21
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#define L3_PAGETABLE_SHIFT_X86_64 30
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#define L4_PAGETABLE_SHIFT_X86_64 39
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#define L1_PAGETABLE_ENTRIES_X86_64 512
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#define L2_PAGETABLE_ENTRIES_X86_64 512
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#define L3_PAGETABLE_ENTRIES_X86_64 512
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#define L4_PAGETABLE_ENTRIES_X86_64 512
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#if defined(__i386__)
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#define L1_PAGETABLE_SHIFT L1_PAGETABLE_SHIFT_I386
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#define L2_PAGETABLE_SHIFT L2_PAGETABLE_SHIFT_I386
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#define L1_PAGETABLE_ENTRIES L1_PAGETABLE_ENTRIES_I386
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#define L2_PAGETABLE_ENTRIES L2_PAGETABLE_ENTRIES_I386
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#elif defined(__x86_64__)
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#define L1_PAGETABLE_SHIFT L1_PAGETABLE_SHIFT_X86_64
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#define L2_PAGETABLE_SHIFT L2_PAGETABLE_SHIFT_X86_64
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#define L3_PAGETABLE_SHIFT L3_PAGETABLE_SHIFT_X86_64
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#define L4_PAGETABLE_SHIFT L4_PAGETABLE_SHIFT_X86_64
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#define L1_PAGETABLE_ENTRIES L1_PAGETABLE_ENTRIES_X86_64
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#define L2_PAGETABLE_ENTRIES L2_PAGETABLE_ENTRIES_X86_64
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#define L3_PAGETABLE_ENTRIES L3_PAGETABLE_ENTRIES_X86_64
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#define L4_PAGETABLE_ENTRIES L4_PAGETABLE_ENTRIES_X86_64
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#endif
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typedef uint32_t l1_pgentry_32_t;
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typedef uint32_t l2_pgentry_32_t;
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typedef uint64_t l1_pgentry_64_t;
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typedef uint64_t l2_pgentry_64_t;
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typedef uint64_t l3_pgentry_64_t;
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typedef uint64_t l4_pgentry_64_t;
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#if defined(__i386__)
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typedef l1_pgentry_32_t l1_pgentry_t;
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typedef l2_pgentry_32_t l2_pgentry_t;
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#elif defined(__x86_64__)
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typedef l1_pgentry_64_t l1_pgentry_t;
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typedef l2_pgentry_64_t l2_pgentry_t;
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typedef l3_pgentry_64_t l3_pgentry_t;
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typedef l4_pgentry_64_t l4_pgentry_t;
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#endif
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#define l1_table_offset_i386(_a) \
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(((_a) >> L1_PAGETABLE_SHIFT_I386) & (L1_PAGETABLE_ENTRIES_I386 - 1))
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#define l2_table_offset_i386(_a) \
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(((_a) >> L2_PAGETABLE_SHIFT_I386) & (L2_PAGETABLE_ENTRIES_I386 - 1))
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#define l1_table_offset_pae(_a) \
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(((_a) >> L1_PAGETABLE_SHIFT_PAE) & (L1_PAGETABLE_ENTRIES_PAE - 1))
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#define l2_table_offset_pae(_a) \
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(((_a) >> L2_PAGETABLE_SHIFT_PAE) & (L2_PAGETABLE_ENTRIES_PAE - 1))
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#define l3_table_offset_pae(_a) \
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(((_a) >> L3_PAGETABLE_SHIFT_PAE) & (L3_PAGETABLE_ENTRIES_PAE - 1))
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#define l1_table_offset_x86_64(_a) \
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(((_a) >> L1_PAGETABLE_SHIFT_X86_64) & (L1_PAGETABLE_ENTRIES_X86_64 - 1))
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#define l2_table_offset_x86_64(_a) \
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(((_a) >> L2_PAGETABLE_SHIFT_X86_64) & (L2_PAGETABLE_ENTRIES_X86_64 - 1))
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#define l3_table_offset_x86_64(_a) \
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(((_a) >> L3_PAGETABLE_SHIFT_X86_64) & (L3_PAGETABLE_ENTRIES_X86_64 - 1))
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#define l4_table_offset_x86_64(_a) \
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(((_a) >> L4_PAGETABLE_SHIFT_X86_64) & (L4_PAGETABLE_ENTRIES_X86_64 - 1))
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#if defined(__i386__)
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#define l1_table_offset(_a) l1_table_offset_i386(_a)
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#define l2_table_offset(_a) l2_table_offset_i386(_a)
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#elif defined(__x86_64__)
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#define l1_table_offset(_a) l1_table_offset_x86_64(_a)
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#define l2_table_offset(_a) l2_table_offset_x86_64(_a)
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#define l3_table_offset(_a) l3_table_offset_x86_64(_a)
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#define l4_table_offset(_a) l4_table_offset_x86_64(_a)
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#endif
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#define PAGE_SHIFT_X86 12
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#define PAGE_SIZE_X86 (1UL << PAGE_SHIFT_X86)
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#define PAGE_MASK_X86 (~(PAGE_SIZE_X86-1))
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#define PAGE_SHIFT_IA64 14
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#define PAGE_SIZE_IA64 (1UL << PAGE_SHIFT_IA64)
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#define PAGE_MASK_IA64 (~(PAGE_SIZE_IA64-1))
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struct domain_setup_info
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{
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uint64_t v_start;
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uint64_t v_end;
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uint64_t v_kernstart;
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uint64_t v_kernend;
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uint64_t v_kernentry;
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uint64_t elf_paddr_offset;
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#define PAEKERN_no 0
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#define PAEKERN_yes 1
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#define PAEKERN_extended_cr3 2
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#define PAEKERN_bimodal 3
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unsigned int pae_kernel;
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unsigned int load_symtab;
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unsigned long symtab_addr;
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unsigned long symtab_len;
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/*
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* Only one of __elfnote_* or __xen_guest_string will be
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* non-NULL.
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*
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* You should use the xen_elfnote_* accessors below in order to
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* pickup the correct one and retain backwards compatibility.
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*/
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const void *__elfnote_section, *__elfnote_section_end;
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const char *__xen_guest_string;
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};
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typedef int (*parseimagefunc)(const char *image, unsigned long image_size,
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struct domain_setup_info *dsi);
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typedef int (*loadimagefunc)(const char *image, unsigned long image_size,
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int xch,
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uint32_t dom, xen_pfn_t *parray,
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struct domain_setup_info *dsi);
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/*
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* If an ELF note of the given type is found then the value contained
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* in the note is returned and *defined is set to non-zero. If no such
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* note is found then *defined is set to 0 and 0 is returned.
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*/
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extern unsigned long long xen_elfnote_numeric(const struct domain_setup_info *dsi,
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int type, int *defined);
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/*
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* If an ELF note of the given type is found then the string contained
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* in the value is returned, otherwise NULL is returned.
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*/
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extern const char * xen_elfnote_string(const struct domain_setup_info *dsi,
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int type);
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struct load_funcs
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{
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parseimagefunc parseimage;
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loadimagefunc loadimage;
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};
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#define mfn_mapper_queue_size 128
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typedef struct mfn_mapper {
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int xc_handle;
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int size;
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int prot;
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int error;
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int max_queue_size;
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void * addr;
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privcmd_mmap_t ioctl;
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} mfn_mapper_t;
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int xc_copy_to_domain_page(int xc_handle, uint32_t domid,
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unsigned long dst_pfn, const char *src_page);
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void xc_map_memcpy(unsigned long dst, const char *src, unsigned long size,
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int xch, uint32_t dom, xen_pfn_t *parray,
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unsigned long vstart);
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int pin_table(int xc_handle, unsigned int type, unsigned long mfn,
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domid_t dom);
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/* image loading */
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int probe_elf(const char *image, unsigned long image_size,
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struct load_funcs *funcs);
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int probe_bin(const char *image, unsigned long image_size,
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struct load_funcs *funcs);
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#endif /* XG_PRIVATE_H */
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