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armv8: Disable exception vectors in SPL by default

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Commit 1416e2d225 ("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>
This commit is contained in:
Alexander Graf 2019-02-20 17:14:49 +01:00 committed by Tom Rini
parent 7a77836996
commit ef331e3685
2 changed files with 3 additions and 3 deletions
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2
arch/arm/cpu/armv8/Kconfig
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@ -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.

4
arch/arm/cpu/armv8/start.S
View File

@ -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