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| author | Remi Denis-Courmont <remi.denis.courmont@huawei.com> | 2020-03-12 11:40:02 +0200 |
|---|---|---|
| committer | Catalin Marinas <catalin.marinas@arm.com> | 2020-03-24 11:48:24 +0000 |
| commit | 6cf9a2dce6bd10cf454cf6299c1c23182cb486e7 (patch) | |
| tree | 74f2c68a6dba44562b9e42b10955f4daab0f4565 /arch/arm64/kernel/head.S | |
| parent | dc374b477f9233296bf2da31854e486e1781169e (diff) | |
| download | linux-6cf9a2dce6bd10cf454cf6299c1c23182cb486e7.tar.bz2 | |
arm64: move kimage_vaddr to .rodata
This datum is not referenced from .idmap.text: it does not need to be
mapped in idmap. Lets move it to .rodata as it is never written to after
early boot of the primary CPU.
(Maybe .data.ro_after_init would be cleaner though?)
Signed-off-by: Rémi Denis-Courmont <remi@remlab.net>
Acked-by: Will Deacon <will@kernel.org>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Diffstat (limited to 'arch/arm64/kernel/head.S')
| -rw-r--r-- | arch/arm64/kernel/head.S | 12 |
1 files changed, 7 insertions, 5 deletions
diff --git a/arch/arm64/kernel/head.S b/arch/arm64/kernel/head.S index a06727354fad..1923802ea962 100644 --- a/arch/arm64/kernel/head.S +++ b/arch/arm64/kernel/head.S @@ -458,17 +458,19 @@ SYM_FUNC_START_LOCAL(__primary_switched) b start_kernel SYM_FUNC_END(__primary_switched) + .pushsection ".rodata", "a" +SYM_DATA_START(kimage_vaddr) + .quad _text - TEXT_OFFSET +SYM_DATA_END(kimage_vaddr) +EXPORT_SYMBOL(kimage_vaddr) + .popsection + /* * end early head section, begin head code that is also used for * hotplug and needs to have the same protections as the text region */ .section ".idmap.text","awx" -SYM_DATA_START(kimage_vaddr) - .quad _text - TEXT_OFFSET -SYM_DATA_END(kimage_vaddr) -EXPORT_SYMBOL(kimage_vaddr) - /* * If we're fortunate enough to boot at EL2, ensure that the world is * sane before dropping to EL1. |