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authorAlexander Graf <agraf@suse.de>2019-02-20 17:14:49 +0100
committerTom Rini <trini@konsulko.com>2019-03-22 12:15:03 -0400
commitef331e3685fed584708055ad81804c6e4a1f64e2 (patch)
tree6c0d7d1f7a5eb26ed38c0af773b982eaea08fc48
parent7a77836996837e07f3ba42da090010cb4b3af7ea (diff)
downloadu-boot-ef331e3685fed584708055ad81804c6e4a1f64e2.tar.gz
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 <agraf@suse.de> Reviewed-by: Matthias Brugger <mbrugger@suse.com> Reviewed-by: Andre Przywara <andre.przywara@arm.com>
-rw-r--r--arch/arm/cpu/armv8/Kconfig2
-rw-r--r--arch/arm/cpu/armv8/start.S4
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