*sigh*. Feel free to make the subject less dumb if you apply this. --Andy
On Fri, Jan 31, 2014 at 3:04 PM, Andy Lutomirski <l...@amacapital.net> wrote: > > This has probably been broken since the VVAR page was introduced. > The symptom is that BIOS crud can be left behind where userspace can > see it. (I saw this with QEMU.) > > Signed-off-by: Andy Lutomirski <l...@amacapital.net> > --- > arch/x86/kernel/vmlinux.lds.S | 5 +++++ > 1 file changed, 5 insertions(+) > > diff --git a/arch/x86/kernel/vmlinux.lds.S b/arch/x86/kernel/vmlinux.lds.S > index da6b35a..331a66f 100644 > --- a/arch/x86/kernel/vmlinux.lds.S > +++ b/arch/x86/kernel/vmlinux.lds.S > @@ -165,6 +165,11 @@ SECTIONS > #undef __VVAR_KERNEL_LDS > #undef EMIT_VVAR > > + /* > + * Pad the rest of the page with zeros. Otherwise the loader > + * can leave garbage here. > + */ > + . = __vvar_beginning_hack + PAGE_SIZE; > } :data > > . = ALIGN(__vvar_page + PAGE_SIZE, PAGE_SIZE); > -- > 1.8.5.3 > -- Andy Lutomirski AMA Capital Management, LLC -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
