From ef331e3685fed584708055ad81804c6e4a1f64e2 Mon Sep 17 00:00:00 2001 From: Alexander Graf Date: Wed, 20 Feb 2019 17:14:49 +0100 Subject: [PATCH] armv8: Disable exception vectors in SPL by default Commit 1416e2d2253 ("armv8: make SPL exception vectors optional") had a typo in it which effectively disabled exception handling in SPL code always. Since nobody complained, I guess we may as well disable exception handling in SPL always by default. So fix the bug to make the config option effective, but disable exception handling in SPL by default. This gets us to the same functionality as before by default, but with much less code included in the binary. Signed-off-by: Alexander Graf Reviewed-by: Matthias Brugger Reviewed-by: Andre Przywara --- arch/arm/cpu/armv8/Kconfig | 2 +- arch/arm/cpu/armv8/start.S | 4 ++-- 2 files changed, 3 insertions(+), 3 deletions(-) diff --git a/arch/arm/cpu/armv8/Kconfig b/arch/arm/cpu/armv8/Kconfig index f0536038d6..7405c3a4a1 100644 --- a/arch/arm/cpu/armv8/Kconfig +++ b/arch/arm/cpu/armv8/Kconfig @@ -3,7 +3,7 @@ if ARM64 config ARMV8_SPL_EXCEPTION_VECTORS bool "Install crash dump exception vectors" depends on SPL - default y + default n help The default exception vector table is only used for the crash dump, but still takes quite a lot of space in the image size. diff --git a/arch/arm/cpu/armv8/start.S b/arch/arm/cpu/armv8/start.S index 12a78ee38b..fe52166e28 100644 --- a/arch/arm/cpu/armv8/start.S +++ b/arch/arm/cpu/armv8/start.S @@ -88,7 +88,7 @@ pie_fixup_done: bl reset_sctrl #endif -#if defined(CONFIG_ARMV8__SPL_EXCEPTION_VECTORS) || !defined(CONFIG_SPL_BUILD) +#if defined(CONFIG_ARMV8_SPL_EXCEPTION_VECTORS) || !defined(CONFIG_SPL_BUILD) .macro set_vbar, regname, reg msr \regname, \reg .endm @@ -354,7 +354,7 @@ ENDPROC(smp_kick_all_cpus) /*-----------------------------------------------------------------------*/ ENTRY(c_runtime_cpu_setup) -#if defined(CONFIG_ARMV8__SPL_EXCEPTION_VECTORS) || !defined(CONFIG_SPL_BUILD) +#if defined(CONFIG_ARMV8_SPL_EXCEPTION_VECTORS) || !defined(CONFIG_SPL_BUILD) /* Relocate vBAR */ adr x0, vectors switch_el x1, 3f, 2f, 1f -- 2.25.1