On Mon, Mar 18, 2019 at 2:29 AM Lukas Auer <lukas.a...@aisec.fraunhofer.de> wrote: > > The hart ID passed by the previous boot stage is currently stored in > register s0. If we divert the control flow inside a function, which is > required as part of multi-hart support, the function epilog may not be > called, clobbering register s0. Save the hart ID in the unallocatable > register tp instead to protect the hart ID. > > Signed-off-by: Lukas Auer <lukas.a...@aisec.fraunhofer.de> > --- > > Changes in v3: > - New patch to save the hart ID in register tp instead of s0 > > Changes in v2: None > > arch/riscv/cpu/start.S | 4 ++-- > 1 file changed, 2 insertions(+), 2 deletions(-) >
Reviewed-by: Bin Meng <bmeng...@gmail.com> _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de https://lists.denx.de/listinfo/u-boot
