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-rw-r--r--arch/x86/mm/dump_pagetables.c640
1 files changed, 640 insertions, 0 deletions
diff --git a/arch/x86/mm/dump_pagetables.c b/arch/x86/mm/dump_pagetables.c
new file mode 100644
index 000000000..abcb8d00b
--- /dev/null
+++ b/arch/x86/mm/dump_pagetables.c
@@ -0,0 +1,640 @@
+/*
+ * Debug helper to dump the current kernel pagetables of the system
+ * so that we can see what the various memory ranges are set to.
+ *
+ * (C) Copyright 2008 Intel Corporation
+ *
+ * Author: Arjan van de Ven <arjan@linux.intel.com>
+ *
+ * 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; version 2
+ * of the License.
+ */
+
+#include <linux/debugfs.h>
+#include <linux/kasan.h>
+#include <linux/mm.h>
+#include <linux/init.h>
+#include <linux/sched.h>
+#include <linux/seq_file.h>
+#include <linux/highmem.h>
+#include <linux/pci.h>
+
+#include <asm/e820/types.h>
+#include <asm/pgtable.h>
+
+/*
+ * The dumper groups pagetable entries of the same type into one, and for
+ * that it needs to keep some state when walking, and flush this state
+ * when a "break" in the continuity is found.
+ */
+struct pg_state {
+ int level;
+ pgprot_t current_prot;
+ pgprotval_t effective_prot;
+ unsigned long start_address;
+ unsigned long current_address;
+ const struct addr_marker *marker;
+ unsigned long lines;
+ bool to_dmesg;
+ bool check_wx;
+ unsigned long wx_pages;
+};
+
+struct addr_marker {
+ unsigned long start_address;
+ const char *name;
+ unsigned long max_lines;
+};
+
+/* Address space markers hints */
+
+#ifdef CONFIG_X86_64
+
+enum address_markers_idx {
+ USER_SPACE_NR = 0,
+ KERNEL_SPACE_NR,
+#ifdef CONFIG_MODIFY_LDT_SYSCALL
+ LDT_NR,
+#endif
+ LOW_KERNEL_NR,
+ VMALLOC_START_NR,
+ VMEMMAP_START_NR,
+#ifdef CONFIG_KASAN
+ KASAN_SHADOW_START_NR,
+ KASAN_SHADOW_END_NR,
+#endif
+ CPU_ENTRY_AREA_NR,
+#ifdef CONFIG_X86_ESPFIX64
+ ESPFIX_START_NR,
+#endif
+#ifdef CONFIG_EFI
+ EFI_END_NR,
+#endif
+ HIGH_KERNEL_NR,
+ MODULES_VADDR_NR,
+ MODULES_END_NR,
+ FIXADDR_START_NR,
+ END_OF_SPACE_NR,
+};
+
+static struct addr_marker address_markers[] = {
+ [USER_SPACE_NR] = { 0, "User Space" },
+ [KERNEL_SPACE_NR] = { (1UL << 63), "Kernel Space" },
+ [LOW_KERNEL_NR] = { 0UL, "Low Kernel Mapping" },
+ [VMALLOC_START_NR] = { 0UL, "vmalloc() Area" },
+ [VMEMMAP_START_NR] = { 0UL, "Vmemmap" },
+#ifdef CONFIG_KASAN
+ /*
+ * These fields get initialized with the (dynamic)
+ * KASAN_SHADOW_{START,END} values in pt_dump_init().
+ */
+ [KASAN_SHADOW_START_NR] = { 0UL, "KASAN shadow" },
+ [KASAN_SHADOW_END_NR] = { 0UL, "KASAN shadow end" },
+#endif
+#ifdef CONFIG_MODIFY_LDT_SYSCALL
+ [LDT_NR] = { 0UL, "LDT remap" },
+#endif
+ [CPU_ENTRY_AREA_NR] = { CPU_ENTRY_AREA_BASE,"CPU entry Area" },
+#ifdef CONFIG_X86_ESPFIX64
+ [ESPFIX_START_NR] = { ESPFIX_BASE_ADDR, "ESPfix Area", 16 },
+#endif
+#ifdef CONFIG_EFI
+ [EFI_END_NR] = { EFI_VA_END, "EFI Runtime Services" },
+#endif
+ [HIGH_KERNEL_NR] = { __START_KERNEL_map, "High Kernel Mapping" },
+ [MODULES_VADDR_NR] = { MODULES_VADDR, "Modules" },
+ [MODULES_END_NR] = { MODULES_END, "End Modules" },
+ [FIXADDR_START_NR] = { FIXADDR_START, "Fixmap Area" },
+ [END_OF_SPACE_NR] = { -1, NULL }
+};
+
+#define INIT_PGD ((pgd_t *) &init_top_pgt)
+
+#else /* CONFIG_X86_64 */
+
+enum address_markers_idx {
+ USER_SPACE_NR = 0,
+ KERNEL_SPACE_NR,
+ VMALLOC_START_NR,
+ VMALLOC_END_NR,
+#ifdef CONFIG_HIGHMEM
+ PKMAP_BASE_NR,
+#endif
+#ifdef CONFIG_MODIFY_LDT_SYSCALL
+ LDT_NR,
+#endif
+ CPU_ENTRY_AREA_NR,
+ FIXADDR_START_NR,
+ END_OF_SPACE_NR,
+};
+
+static struct addr_marker address_markers[] = {
+ [USER_SPACE_NR] = { 0, "User Space" },
+ [KERNEL_SPACE_NR] = { PAGE_OFFSET, "Kernel Mapping" },
+ [VMALLOC_START_NR] = { 0UL, "vmalloc() Area" },
+ [VMALLOC_END_NR] = { 0UL, "vmalloc() End" },
+#ifdef CONFIG_HIGHMEM
+ [PKMAP_BASE_NR] = { 0UL, "Persistent kmap() Area" },
+#endif
+#ifdef CONFIG_MODIFY_LDT_SYSCALL
+ [LDT_NR] = { 0UL, "LDT remap" },
+#endif
+ [CPU_ENTRY_AREA_NR] = { 0UL, "CPU entry area" },
+ [FIXADDR_START_NR] = { 0UL, "Fixmap area" },
+ [END_OF_SPACE_NR] = { -1, NULL }
+};
+
+#define INIT_PGD (swapper_pg_dir)
+
+#endif /* !CONFIG_X86_64 */
+
+/* Multipliers for offsets within the PTEs */
+#define PTE_LEVEL_MULT (PAGE_SIZE)
+#define PMD_LEVEL_MULT (PTRS_PER_PTE * PTE_LEVEL_MULT)
+#define PUD_LEVEL_MULT (PTRS_PER_PMD * PMD_LEVEL_MULT)
+#define P4D_LEVEL_MULT (PTRS_PER_PUD * PUD_LEVEL_MULT)
+#define PGD_LEVEL_MULT (PTRS_PER_P4D * P4D_LEVEL_MULT)
+
+#define pt_dump_seq_printf(m, to_dmesg, fmt, args...) \
+({ \
+ if (to_dmesg) \
+ printk(KERN_INFO fmt, ##args); \
+ else \
+ if (m) \
+ seq_printf(m, fmt, ##args); \
+})
+
+#define pt_dump_cont_printf(m, to_dmesg, fmt, args...) \
+({ \
+ if (to_dmesg) \
+ printk(KERN_CONT fmt, ##args); \
+ else \
+ if (m) \
+ seq_printf(m, fmt, ##args); \
+})
+
+/*
+ * Print a readable form of a pgprot_t to the seq_file
+ */
+static void printk_prot(struct seq_file *m, pgprot_t prot, int level, bool dmsg)
+{
+ pgprotval_t pr = pgprot_val(prot);
+ static const char * const level_name[] =
+ { "cr3", "pgd", "p4d", "pud", "pmd", "pte" };
+
+ if (!(pr & _PAGE_PRESENT)) {
+ /* Not present */
+ pt_dump_cont_printf(m, dmsg, " ");
+ } else {
+ if (pr & _PAGE_USER)
+ pt_dump_cont_printf(m, dmsg, "USR ");
+ else
+ pt_dump_cont_printf(m, dmsg, " ");
+ if (pr & _PAGE_RW)
+ pt_dump_cont_printf(m, dmsg, "RW ");
+ else
+ pt_dump_cont_printf(m, dmsg, "ro ");
+ if (pr & _PAGE_PWT)
+ pt_dump_cont_printf(m, dmsg, "PWT ");
+ else
+ pt_dump_cont_printf(m, dmsg, " ");
+ if (pr & _PAGE_PCD)
+ pt_dump_cont_printf(m, dmsg, "PCD ");
+ else
+ pt_dump_cont_printf(m, dmsg, " ");
+
+ /* Bit 7 has a different meaning on level 3 vs 4 */
+ if (level <= 4 && pr & _PAGE_PSE)
+ pt_dump_cont_printf(m, dmsg, "PSE ");
+ else
+ pt_dump_cont_printf(m, dmsg, " ");
+ if ((level == 5 && pr & _PAGE_PAT) ||
+ ((level == 4 || level == 3) && pr & _PAGE_PAT_LARGE))
+ pt_dump_cont_printf(m, dmsg, "PAT ");
+ else
+ pt_dump_cont_printf(m, dmsg, " ");
+ if (pr & _PAGE_GLOBAL)
+ pt_dump_cont_printf(m, dmsg, "GLB ");
+ else
+ pt_dump_cont_printf(m, dmsg, " ");
+ if (pr & _PAGE_NX)
+ pt_dump_cont_printf(m, dmsg, "NX ");
+ else
+ pt_dump_cont_printf(m, dmsg, "x ");
+ }
+ pt_dump_cont_printf(m, dmsg, "%s\n", level_name[level]);
+}
+
+/*
+ * On 64 bits, sign-extend the 48 bit address to 64 bit
+ */
+static unsigned long normalize_addr(unsigned long u)
+{
+ int shift;
+ if (!IS_ENABLED(CONFIG_X86_64))
+ return u;
+
+ shift = 64 - (__VIRTUAL_MASK_SHIFT + 1);
+ return (signed long)(u << shift) >> shift;
+}
+
+static void note_wx(struct pg_state *st)
+{
+ unsigned long npages;
+
+ npages = (st->current_address - st->start_address) / PAGE_SIZE;
+
+#ifdef CONFIG_PCI_BIOS
+ /*
+ * If PCI BIOS is enabled, the PCI BIOS area is forced to WX.
+ * Inform about it, but avoid the warning.
+ */
+ if (pcibios_enabled && st->start_address >= PAGE_OFFSET + BIOS_BEGIN &&
+ st->current_address <= PAGE_OFFSET + BIOS_END) {
+ pr_warn_once("x86/mm: PCI BIOS W+X mapping %lu pages\n", npages);
+ return;
+ }
+#endif
+ /* Account the WX pages */
+ st->wx_pages += npages;
+ WARN_ONCE(1, "x86/mm: Found insecure W+X mapping at address %pS\n",
+ (void *)st->start_address);
+}
+
+/*
+ * This function gets called on a break in a continuous series
+ * of PTE entries; the next one is different so we need to
+ * print what we collected so far.
+ */
+static void note_page(struct seq_file *m, struct pg_state *st,
+ pgprot_t new_prot, pgprotval_t new_eff, int level)
+{
+ pgprotval_t prot, cur, eff;
+ static const char units[] = "BKMGTPE";
+
+ /*
+ * If we have a "break" in the series, we need to flush the state that
+ * we have now. "break" is either changing perms, levels or
+ * address space marker.
+ */
+ prot = pgprot_val(new_prot);
+ cur = pgprot_val(st->current_prot);
+ eff = st->effective_prot;
+
+ if (!st->level) {
+ /* First entry */
+ st->current_prot = new_prot;
+ st->effective_prot = new_eff;
+ st->level = level;
+ st->marker = address_markers;
+ st->lines = 0;
+ pt_dump_seq_printf(m, st->to_dmesg, "---[ %s ]---\n",
+ st->marker->name);
+ } else if (prot != cur || new_eff != eff || level != st->level ||
+ st->current_address >= st->marker[1].start_address) {
+ const char *unit = units;
+ unsigned long delta;
+ int width = sizeof(unsigned long) * 2;
+
+ if (st->check_wx && (eff & _PAGE_RW) && !(eff & _PAGE_NX))
+ note_wx(st);
+
+ /*
+ * Now print the actual finished series
+ */
+ if (!st->marker->max_lines ||
+ st->lines < st->marker->max_lines) {
+ pt_dump_seq_printf(m, st->to_dmesg,
+ "0x%0*lx-0x%0*lx ",
+ width, st->start_address,
+ width, st->current_address);
+
+ delta = st->current_address - st->start_address;
+ while (!(delta & 1023) && unit[1]) {
+ delta >>= 10;
+ unit++;
+ }
+ pt_dump_cont_printf(m, st->to_dmesg, "%9lu%c ",
+ delta, *unit);
+ printk_prot(m, st->current_prot, st->level,
+ st->to_dmesg);
+ }
+ st->lines++;
+
+ /*
+ * We print markers for special areas of address space,
+ * such as the start of vmalloc space etc.
+ * This helps in the interpretation.
+ */
+ if (st->current_address >= st->marker[1].start_address) {
+ if (st->marker->max_lines &&
+ st->lines > st->marker->max_lines) {
+ unsigned long nskip =
+ st->lines - st->marker->max_lines;
+ pt_dump_seq_printf(m, st->to_dmesg,
+ "... %lu entr%s skipped ... \n",
+ nskip,
+ nskip == 1 ? "y" : "ies");
+ }
+ st->marker++;
+ st->lines = 0;
+ pt_dump_seq_printf(m, st->to_dmesg, "---[ %s ]---\n",
+ st->marker->name);
+ }
+
+ st->start_address = st->current_address;
+ st->current_prot = new_prot;
+ st->effective_prot = new_eff;
+ st->level = level;
+ }
+}
+
+static inline pgprotval_t effective_prot(pgprotval_t prot1, pgprotval_t prot2)
+{
+ return (prot1 & prot2 & (_PAGE_USER | _PAGE_RW)) |
+ ((prot1 | prot2) & _PAGE_NX);
+}
+
+static void walk_pte_level(struct seq_file *m, struct pg_state *st, pmd_t addr,
+ pgprotval_t eff_in, unsigned long P)
+{
+ int i;
+ pte_t *pte;
+ pgprotval_t prot, eff;
+
+ for (i = 0; i < PTRS_PER_PTE; i++) {
+ st->current_address = normalize_addr(P + i * PTE_LEVEL_MULT);
+ pte = pte_offset_map(&addr, st->current_address);
+ prot = pte_flags(*pte);
+ eff = effective_prot(eff_in, prot);
+ note_page(m, st, __pgprot(prot), eff, 5);
+ pte_unmap(pte);
+ }
+}
+#ifdef CONFIG_KASAN
+
+/*
+ * This is an optimization for KASAN=y case. Since all kasan page tables
+ * eventually point to the kasan_zero_page we could call note_page()
+ * right away without walking through lower level page tables. This saves
+ * us dozens of seconds (minutes for 5-level config) while checking for
+ * W+X mapping or reading kernel_page_tables debugfs file.
+ */
+static inline bool kasan_page_table(struct seq_file *m, struct pg_state *st,
+ void *pt)
+{
+ if (__pa(pt) == __pa(kasan_zero_pmd) ||
+ (pgtable_l5_enabled() && __pa(pt) == __pa(kasan_zero_p4d)) ||
+ __pa(pt) == __pa(kasan_zero_pud)) {
+ pgprotval_t prot = pte_flags(kasan_zero_pte[0]);
+ note_page(m, st, __pgprot(prot), 0, 5);
+ return true;
+ }
+ return false;
+}
+#else
+static inline bool kasan_page_table(struct seq_file *m, struct pg_state *st,
+ void *pt)
+{
+ return false;
+}
+#endif
+
+#if PTRS_PER_PMD > 1
+
+static void walk_pmd_level(struct seq_file *m, struct pg_state *st, pud_t addr,
+ pgprotval_t eff_in, unsigned long P)
+{
+ int i;
+ pmd_t *start, *pmd_start;
+ pgprotval_t prot, eff;
+
+ pmd_start = start = (pmd_t *)pud_page_vaddr(addr);
+ for (i = 0; i < PTRS_PER_PMD; i++) {
+ st->current_address = normalize_addr(P + i * PMD_LEVEL_MULT);
+ if (!pmd_none(*start)) {
+ prot = pmd_flags(*start);
+ eff = effective_prot(eff_in, prot);
+ if (pmd_large(*start) || !pmd_present(*start)) {
+ note_page(m, st, __pgprot(prot), eff, 4);
+ } else if (!kasan_page_table(m, st, pmd_start)) {
+ walk_pte_level(m, st, *start, eff,
+ P + i * PMD_LEVEL_MULT);
+ }
+ } else
+ note_page(m, st, __pgprot(0), 0, 4);
+ start++;
+ }
+}
+
+#else
+#define walk_pmd_level(m,s,a,e,p) walk_pte_level(m,s,__pmd(pud_val(a)),e,p)
+#define pud_large(a) pmd_large(__pmd(pud_val(a)))
+#define pud_none(a) pmd_none(__pmd(pud_val(a)))
+#endif
+
+#if PTRS_PER_PUD > 1
+
+static void walk_pud_level(struct seq_file *m, struct pg_state *st, p4d_t addr,
+ pgprotval_t eff_in, unsigned long P)
+{
+ int i;
+ pud_t *start, *pud_start;
+ pgprotval_t prot, eff;
+ pud_t *prev_pud = NULL;
+
+ pud_start = start = (pud_t *)p4d_page_vaddr(addr);
+
+ for (i = 0; i < PTRS_PER_PUD; i++) {
+ st->current_address = normalize_addr(P + i * PUD_LEVEL_MULT);
+ if (!pud_none(*start)) {
+ prot = pud_flags(*start);
+ eff = effective_prot(eff_in, prot);
+ if (pud_large(*start) || !pud_present(*start)) {
+ note_page(m, st, __pgprot(prot), eff, 3);
+ } else if (!kasan_page_table(m, st, pud_start)) {
+ walk_pmd_level(m, st, *start, eff,
+ P + i * PUD_LEVEL_MULT);
+ }
+ } else
+ note_page(m, st, __pgprot(0), 0, 3);
+
+ prev_pud = start;
+ start++;
+ }
+}
+
+#else
+#define walk_pud_level(m,s,a,e,p) walk_pmd_level(m,s,__pud(p4d_val(a)),e,p)
+#define p4d_large(a) pud_large(__pud(p4d_val(a)))
+#define p4d_none(a) pud_none(__pud(p4d_val(a)))
+#endif
+
+static void walk_p4d_level(struct seq_file *m, struct pg_state *st, pgd_t addr,
+ pgprotval_t eff_in, unsigned long P)
+{
+ int i;
+ p4d_t *start, *p4d_start;
+ pgprotval_t prot, eff;
+
+ if (PTRS_PER_P4D == 1)
+ return walk_pud_level(m, st, __p4d(pgd_val(addr)), eff_in, P);
+
+ p4d_start = start = (p4d_t *)pgd_page_vaddr(addr);
+
+ for (i = 0; i < PTRS_PER_P4D; i++) {
+ st->current_address = normalize_addr(P + i * P4D_LEVEL_MULT);
+ if (!p4d_none(*start)) {
+ prot = p4d_flags(*start);
+ eff = effective_prot(eff_in, prot);
+ if (p4d_large(*start) || !p4d_present(*start)) {
+ note_page(m, st, __pgprot(prot), eff, 2);
+ } else if (!kasan_page_table(m, st, p4d_start)) {
+ walk_pud_level(m, st, *start, eff,
+ P + i * P4D_LEVEL_MULT);
+ }
+ } else
+ note_page(m, st, __pgprot(0), 0, 2);
+
+ start++;
+ }
+}
+
+#define pgd_large(a) (pgtable_l5_enabled() ? pgd_large(a) : p4d_large(__p4d(pgd_val(a))))
+#define pgd_none(a) (pgtable_l5_enabled() ? pgd_none(a) : p4d_none(__p4d(pgd_val(a))))
+
+static inline bool is_hypervisor_range(int idx)
+{
+#ifdef CONFIG_X86_64
+ /*
+ * A hole in the beginning of kernel address space reserved
+ * for a hypervisor.
+ */
+ return (idx >= pgd_index(GUARD_HOLE_BASE_ADDR)) &&
+ (idx < pgd_index(GUARD_HOLE_END_ADDR));
+#else
+ return false;
+#endif
+}
+
+static void ptdump_walk_pgd_level_core(struct seq_file *m, pgd_t *pgd,
+ bool checkwx, bool dmesg)
+{
+ pgd_t *start = INIT_PGD;
+ pgprotval_t prot, eff;
+ int i;
+ struct pg_state st = {};
+
+ if (pgd) {
+ start = pgd;
+ st.to_dmesg = dmesg;
+ }
+
+ st.check_wx = checkwx;
+ if (checkwx)
+ st.wx_pages = 0;
+
+ for (i = 0; i < PTRS_PER_PGD; i++) {
+ st.current_address = normalize_addr(i * PGD_LEVEL_MULT);
+ if (!pgd_none(*start) && !is_hypervisor_range(i)) {
+ prot = pgd_flags(*start);
+#ifdef CONFIG_X86_PAE
+ eff = _PAGE_USER | _PAGE_RW;
+#else
+ eff = prot;
+#endif
+ if (pgd_large(*start) || !pgd_present(*start)) {
+ note_page(m, &st, __pgprot(prot), eff, 1);
+ } else {
+ walk_p4d_level(m, &st, *start, eff,
+ i * PGD_LEVEL_MULT);
+ }
+ } else
+ note_page(m, &st, __pgprot(0), 0, 1);
+
+ cond_resched();
+ start++;
+ }
+
+ /* Flush out the last page */
+ st.current_address = normalize_addr(PTRS_PER_PGD*PGD_LEVEL_MULT);
+ note_page(m, &st, __pgprot(0), 0, 0);
+ if (!checkwx)
+ return;
+ if (st.wx_pages)
+ pr_info("x86/mm: Checked W+X mappings: FAILED, %lu W+X pages found.\n",
+ st.wx_pages);
+ else
+ pr_info("x86/mm: Checked W+X mappings: passed, no W+X pages found.\n");
+}
+
+void ptdump_walk_pgd_level(struct seq_file *m, pgd_t *pgd)
+{
+ ptdump_walk_pgd_level_core(m, pgd, false, true);
+}
+
+void ptdump_walk_pgd_level_debugfs(struct seq_file *m, pgd_t *pgd, bool user)
+{
+#ifdef CONFIG_PAGE_TABLE_ISOLATION
+ if (user && static_cpu_has(X86_FEATURE_PTI))
+ pgd = kernel_to_user_pgdp(pgd);
+#endif
+ ptdump_walk_pgd_level_core(m, pgd, false, false);
+}
+EXPORT_SYMBOL_GPL(ptdump_walk_pgd_level_debugfs);
+
+void ptdump_walk_user_pgd_level_checkwx(void)
+{
+#ifdef CONFIG_PAGE_TABLE_ISOLATION
+ pgd_t *pgd = INIT_PGD;
+
+ if (!(__supported_pte_mask & _PAGE_NX) ||
+ !static_cpu_has(X86_FEATURE_PTI))
+ return;
+
+ pr_info("x86/mm: Checking user space page tables\n");
+ pgd = kernel_to_user_pgdp(pgd);
+ ptdump_walk_pgd_level_core(NULL, pgd, true, false);
+#endif
+}
+
+void ptdump_walk_pgd_level_checkwx(void)
+{
+ ptdump_walk_pgd_level_core(NULL, NULL, true, false);
+}
+
+static int __init pt_dump_init(void)
+{
+ /*
+ * Various markers are not compile-time constants, so assign them
+ * here.
+ */
+#ifdef CONFIG_X86_64
+ address_markers[LOW_KERNEL_NR].start_address = PAGE_OFFSET;
+ address_markers[VMALLOC_START_NR].start_address = VMALLOC_START;
+ address_markers[VMEMMAP_START_NR].start_address = VMEMMAP_START;
+#ifdef CONFIG_MODIFY_LDT_SYSCALL
+ address_markers[LDT_NR].start_address = LDT_BASE_ADDR;
+#endif
+#ifdef CONFIG_KASAN
+ address_markers[KASAN_SHADOW_START_NR].start_address = KASAN_SHADOW_START;
+ address_markers[KASAN_SHADOW_END_NR].start_address = KASAN_SHADOW_END;
+#endif
+#endif
+#ifdef CONFIG_X86_32
+ address_markers[VMALLOC_START_NR].start_address = VMALLOC_START;
+ address_markers[VMALLOC_END_NR].start_address = VMALLOC_END;
+# ifdef CONFIG_HIGHMEM
+ address_markers[PKMAP_BASE_NR].start_address = PKMAP_BASE;
+# endif
+ address_markers[FIXADDR_START_NR].start_address = FIXADDR_START;
+ address_markers[CPU_ENTRY_AREA_NR].start_address = CPU_ENTRY_AREA_BASE;
+# ifdef CONFIG_MODIFY_LDT_SYSCALL
+ address_markers[LDT_NR].start_address = LDT_BASE_ADDR;
+# endif
+#endif
+ return 0;
+}
+__initcall(pt_dump_init);
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-28 14:05:37 +0000