Messages in this thread | | | Subject | Re: [PATCH 1/4] x86, ptdump: Add the functionality to dump an arbitrary pagetable | From | Joe Perches <> | Date | Sat, 11 Jan 2014 12:59:42 -0800 |
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On Sat, 2014-01-11 at 21:49 +0100, Borislav Petkov wrote: > From: Borislav Petkov <bp@suse.de> > > With reusing the ->trampoline_pgd page table for mapping EFI regions in > order to use them after having switched to EFI virtual mode, it is very > useful to be able to dump aforementioned page table in dmesg. This adds > that functionality through the walk_pgd_level() interface which can be > called from somewhere else. [] > diff --git a/arch/x86/mm/dump_pagetables.c b/arch/x86/mm/dump_pagetables.c [] > @@ -306,6 +326,11 @@ static void walk_pgd_level(struct seq_file *m) > int i; > struct pg_state st; > > + if (pgd) { > + start = pgd; > + dump_to_dmesg = true; > + }
else dump_to_dmesg = false;
?
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