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/*
* x86.c
*
* Copyright (C) 2006, 2007 NEC Corporation
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
#ifdef __x86__
#include "makedumpfile.h"
int
get_machdep_info_x86(void)
{
/* PAE */
if ((vt.mem_flags & MEMORY_X86_PAE)
|| ((SYMBOL(pkmap_count) != NOT_FOUND_SYMBOL)
&& (SYMBOL(pkmap_count_next) != NOT_FOUND_SYMBOL)
&& ((SYMBOL(pkmap_count_next)-SYMBOL(pkmap_count))/sizeof(int))
== 512)) {
DEBUG_MSG("\n");
DEBUG_MSG("PAE : ON\n");
info->section_size_bits = _SECTION_SIZE_BITS_PAE;
info->max_physmem_bits = _MAX_PHYSMEM_BITS_PAE;
} else {
DEBUG_MSG("\n");
DEBUG_MSG("PAE : OFF\n");
info->section_size_bits = _SECTION_SIZE_BITS;
info->max_physmem_bits = _MAX_PHYSMEM_BITS;
}
info->page_offset = __PAGE_OFFSET;
return TRUE;
}
/*
* for Xen extraction
*/
unsigned long long
kvtop_xen_x86(unsigned long kvaddr)
{
unsigned long long dirp, entry;
if (!is_xen_vaddr(kvaddr))
return NOT_PADDR;
if (is_direct(kvaddr))
return (unsigned long)kvaddr - DIRECTMAP_VIRT_START;
if ((dirp = kvtop_xen_x86(SYMBOL(pgd_l3))) == NOT_PADDR)
return NOT_PADDR;
dirp += ((kvaddr >> PGDIR_SHIFT_3LEVEL) & (PTRS_PER_PGD_3LEVEL - 1)) * sizeof(unsigned long long);
if (!readmem(PADDR, dirp, &entry, sizeof(entry)))
return NOT_PADDR;
if (!(entry & _PAGE_PRESENT))
return NOT_PADDR;
dirp = entry & ENTRY_MASK;
dirp += ((kvaddr >> PMD_SHIFT) & (PTRS_PER_PMD - 1)) * sizeof(unsigned long long);
if (!readmem(PADDR, dirp, &entry, sizeof(entry)))
return NOT_PADDR;
if (!(entry & _PAGE_PRESENT))
return NOT_PADDR;
if (entry & _PAGE_PSE) {
entry = (entry & ENTRY_MASK) + (kvaddr & ((1UL << PMD_SHIFT) - 1));
return entry;
}
dirp = entry & ENTRY_MASK;
dirp += ((kvaddr >> PTE_SHIFT) & (PTRS_PER_PTE - 1)) * sizeof(unsigned long long);
if (!readmem(PADDR, dirp, &entry, sizeof(entry)))
return NOT_PADDR;
if (!(entry & _PAGE_PRESENT)) {
return NOT_PADDR;
}
entry = (entry & ENTRY_MASK) + (kvaddr & ((1UL << PTE_SHIFT) - 1));
return entry;
}
int get_xen_info_x86(void)
{
unsigned long frame_table_vaddr;
unsigned long xen_end;
int i;
if (SYMBOL(pgd_l2) == NOT_FOUND_SYMBOL &&
SYMBOL(pgd_l3) == NOT_FOUND_SYMBOL) {
ERRMSG("Can't get pgd.\n");
return FALSE;
}
if (SYMBOL(pgd_l3) == NOT_FOUND_SYMBOL) {
ERRMSG("non-PAE not support right now.\n");
return FALSE;
}
if (SYMBOL(frame_table) == NOT_FOUND_SYMBOL) {
ERRMSG("Can't get the symbol of frame_table.\n");
return FALSE;
}
if (!readmem(VADDR_XEN, SYMBOL(frame_table), &frame_table_vaddr,
sizeof(frame_table_vaddr))) {
ERRMSG("Can't get the value of frame_table.\n");
return FALSE;
}
info->frame_table_vaddr = frame_table_vaddr;
if (SYMBOL(xenheap_phys_end) == NOT_FOUND_SYMBOL) {
ERRMSG("Can't get the symbol of xenheap_phys_end.\n");
return FALSE;
}
if (!readmem(VADDR_XEN, SYMBOL(xenheap_phys_end), &xen_end,
sizeof(xen_end))) {
ERRMSG("Can't get the value of xenheap_phys_end.\n");
return FALSE;
}
info->xen_heap_end = (xen_end >> PAGESHIFT());
info->xen_heap_start = 0;
/*
* pickled_id == domain addr for x86
*/
for (i = 0; i < info->num_domain; i++) {
info->domain_list[i].pickled_id =
info->domain_list[i].domain_addr;
}
return TRUE;
}
#endif /* x86 */
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