From bbca3a9cfa5248eb49bd2e42e8db25a6733835bb Mon Sep 17 00:00:00 2001 From: Julius Werner Date: Thu, 7 May 2015 16:59:31 -0700 Subject: [PATCH] arm64: Reorganize payload entry code and related Kconfigs This patch slightly reorganizes arm64/boot.c with the aim of being more readable: Make more obvious that there's no code execution here after payload_entry. [pg: taken from patch linked below] Change-Id: Ia341e5d290b10ad5ba3edb349b8a7f619022d99f Signed-off-by: Patrick Georgi Original-Commit-Id: 5067e47bc03f04ad2dba044f022716e0fc62bb9e Original-Change-Id: I1b2038acc0d054716a3c580ce97ea8e9a45abfa2 Original-Signed-off-by: Julius Werner Original-Reviewed-on: https://chromium-review.googlesource.com/270783 Original-Reviewed-by: Aaron Durbin Reviewed-on: http://review.coreboot.org/10247 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer --- src/arch/arm64/boot.c | 19 ++++++++----------- 1 file changed, 8 insertions(+), 11 deletions(-) diff --git a/src/arch/arm64/boot.c b/src/arch/arm64/boot.c index 702953cfa6..1d9987a437 100644 --- a/src/arch/arm64/boot.c +++ b/src/arch/arm64/boot.c @@ -50,19 +50,16 @@ static void run_payload(struct prog *prog) printk(BIOS_SPEW, "entry = %p\n", doit); /* If current EL is not EL3, jump to payload at same EL. */ - if (current_el != EL3) { - /* Point of no-return */ + if (current_el != EL3) doit(arg); + else { + /* If current EL is EL3, we transition to payload in EL2. */ + struct exc_state exc_state; + memset(&exc_state, 0, sizeof(exc_state)); + exc_state.elx.spsr = get_eret_el(EL2, SPSR_USE_L); + + transition_with_entry(doit, arg, &exc_state); } - - /* If current EL is EL3, we transition to payload in EL2. */ - struct exc_state exc_state; - - memset(&exc_state, 0, sizeof(exc_state)); - - exc_state.elx.spsr = get_eret_el(EL2, SPSR_USE_L); - - transition_with_entry(doit, arg, &exc_state); } }