On Tue, 27 Oct 2020 at 13:29, Heinrich Schuchardt xypron.glpk@gmx.de wrote:
Up to now the sandbox would shutdown upon a cold reset request. Instead it should be reset.
In our coding we use static variables like LIST_HEAD(efi_obj_list). A reset can occur at any time, e.g. via an UEFI binary calling the reset service. The only safe way to return to an initial state is to relaunch the U-Boot binary.
The reset implementation uses execv() to relaunch U-Boot.
Signed-off-by: Heinrich Schuchardt xypron.glpk@gmx.de
v3: update commit message v2: avoid longjmp() add more comments
arch/sandbox/cpu/os.c | 6 ++++++ arch/sandbox/cpu/start.c | 26 +++++++++++++++++++++++ arch/sandbox/cpu/state.c | 1 + arch/sandbox/include/asm/u-boot-sandbox.h | 10 +++++++++ drivers/sysreset/sysreset_sandbox.c | 3 +++ include/os.h | 15 +++++++++++++ 6 files changed, 61 insertions(+)
Reviewed-by: Simon Glass sjg@chromium.org