x86/mm/dump_pagetables: Allow dumping current pagetables

[mirror_ubuntu-bionic-kernel.git] / arch / x86 / mm / dump_pagetables.c

diff --git a/arch/x86/mm/dump_pagetables.c b/arch/x86/mm/dump_pagetables.c
index 17f5b417f95e9e869aca7c07cadccf9e4c0c9890..f56902c1f04b94e1543710dee75d2d7dee19b7c9 100644 (file)
--- a/arch/x86/mm/dump_pagetables.c
+++ b/arch/x86/mm/dump_pagetables.c
@@ -530,8 +530,12 @@ 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)
+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);