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Ian Campbell
1459957f98
the fly. We cannot rely on the length contained in the gzip trailer to determine the length of the decompressed data because images have been observed which have trailing junk. Signed-off-by: Ian Campbell <ian.campbell@xensource.com>
210 lines
5.8 KiB
C
210 lines
5.8 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_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 L2_PAGETABLE_SHIFT_I386 22
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#if defined(__i386__)
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#define L1_PAGETABLE_SHIFT 12
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#define L2_PAGETABLE_SHIFT 22
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#elif defined(__x86_64__)
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#define L1_PAGETABLE_SHIFT 12
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#define L2_PAGETABLE_SHIFT 21
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#define L3_PAGETABLE_SHIFT 30
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#define L4_PAGETABLE_SHIFT 39
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#endif
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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_ENTRIES_I386 1024
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#define L2_PAGETABLE_ENTRIES_I386 1024
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#if defined(__i386__)
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#define L1_PAGETABLE_ENTRIES 1024
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#define L2_PAGETABLE_ENTRIES 1024
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#elif defined(__x86_64__)
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#define L1_PAGETABLE_ENTRIES 512
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#define L2_PAGETABLE_ENTRIES 512
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#define L3_PAGETABLE_ENTRIES 512
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#define L4_PAGETABLE_ENTRIES 512
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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 unsigned long l1_pgentry_t;
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typedef unsigned long l2_pgentry_t;
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#if defined(__x86_64__)
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typedef unsigned long l3_pgentry_t;
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typedef unsigned long l4_pgentry_t;
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#endif
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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_i386(_a) \
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(((_a) >> L1_PAGETABLE_SHIFT) & (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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#if defined(__i386__)
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#define l1_table_offset(_a) \
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(((_a) >> L1_PAGETABLE_SHIFT) & (L1_PAGETABLE_ENTRIES - 1))
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#define l2_table_offset(_a) \
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((_a) >> L2_PAGETABLE_SHIFT)
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#elif defined(__x86_64__)
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#define l1_table_offset(_a) \
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(((_a) >> L1_PAGETABLE_SHIFT) & (L1_PAGETABLE_ENTRIES - 1))
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#define l2_table_offset(_a) \
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(((_a) >> L2_PAGETABLE_SHIFT) & (L2_PAGETABLE_ENTRIES - 1))
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#define l3_table_offset(_a) \
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(((_a) >> L3_PAGETABLE_SHIFT) & (L3_PAGETABLE_ENTRIES - 1))
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#define l4_table_offset(_a) \
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(((_a) >> L4_PAGETABLE_SHIFT) & (L4_PAGETABLE_ENTRIES - 1))
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#endif
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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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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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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(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(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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