On Mon, Dec 16, 2019 at 11:53:48AM +0000, Patrick DELAUNAY wrote:
Hi Tom,
From: Patrice CHOTARD patrice.chotard@st.com Sent: mercredi 27 novembre 2019 10:12
In reserve_bootstage(), in case size is odd, gd->new_bootstage is not aligned. In bootstage_relocate(), the platform hangs when getting access to data-
record[i].name.
To avoid this issue, make gd->new_bootstage 16 byte aligned.
To insure that new_bootstage is 16 byte aligned (at least needed for x86_64 and ARMv8) and new_bootstage starts down to get enough space, ALIGN_DOWN macro is used.
Fixes: ac9cd4805c8b ("bootstage: Correct relocation algorithm")
Signed-off-by: Patrice Chotard patrice.chotard@st.com Reviewed-by: Vikas MANOCHA vikas.manocha@st.com Reviewed-by: Patrick Delaunay patrick.delaunay@st.com Tested-by: Patrick Delaunay patrick.delaunay@st.com
Do you plan to merge this fixe for the next rc for v2020.01 ? Or do you expect some change / review.
This patch is mandatory for stm32mp1 (ARM plaform with bootstage feature activated). Without this patch, the boot failed (at least for v2020.01-rc3 : crash has struct pointer new_bootstage is not aligned).
Or I will deactivate the BOOTSTAGE feature...
I think at this point I would prefer dropping BOOTSTAGE from those boards for the release. There's already been more than one "I think this is safe" followed by "this broke ..." changes I've tried. Sorry!