Messages in this thread | | | Subject | Re: [PATCH v3 5/6] powerpc/fsl_booke/64: clear the original kernel if randomized | From | Christophe Leroy <> | Date | Thu, 20 Feb 2020 14:49:44 +0100 |
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Le 06/02/2020 à 03:58, Jason Yan a écrit : > The original kernel still exists in the memory, clear it now.
No such problem with PPC32 ? Or is that common ?
Christophe
> > Signed-off-by: Jason Yan <yanaijie@huawei.com> > Cc: Scott Wood <oss@buserror.net> > Cc: Diana Craciun <diana.craciun@nxp.com> > Cc: Michael Ellerman <mpe@ellerman.id.au> > Cc: Christophe Leroy <christophe.leroy@c-s.fr> > Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> > Cc: Paul Mackerras <paulus@samba.org> > Cc: Nicholas Piggin <npiggin@gmail.com> > Cc: Kees Cook <keescook@chromium.org> > --- > arch/powerpc/mm/nohash/kaslr_booke.c | 4 +++- > 1 file changed, 3 insertions(+), 1 deletion(-) > > diff --git a/arch/powerpc/mm/nohash/kaslr_booke.c b/arch/powerpc/mm/nohash/kaslr_booke.c > index c6f5c1db1394..ed1277059368 100644 > --- a/arch/powerpc/mm/nohash/kaslr_booke.c > +++ b/arch/powerpc/mm/nohash/kaslr_booke.c > @@ -378,8 +378,10 @@ notrace void __init kaslr_early_init(void *dt_ptr, phys_addr_t size) > unsigned int *__kaslr_offset = (unsigned int *)(KERNELBASE + 0x58); > unsigned int *__run_at_load = (unsigned int *)(KERNELBASE + 0x5c); > > - if (*__run_at_load == 1) > + if (*__run_at_load == 1) { > + kaslr_late_init(); > return; > + } > > /* Setup flat device-tree pointer */ > initial_boot_params = dt_ptr; >
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