[PATCH v6 08/21] arm64: Move SCTLR_EL1 initialisation to EL-agnostic code
Marc Zyngier
maz at kernel.org
Mon Feb 1 06:56:24 EST 2021
We can now move the initial SCTLR_EL1 setup to be used for both
EL1 and EL2 setup.
Signed-off-by: Marc Zyngier <maz at kernel.org>
Acked-by: Catalin Marinas <catalin.marinas at arm.com>
Acked-by: David Brazdil <dbrazdil at google.com>
---
arch/arm64/kernel/head.S | 8 +++-----
1 file changed, 3 insertions(+), 5 deletions(-)
diff --git a/arch/arm64/kernel/head.S b/arch/arm64/kernel/head.S
index 36212c05df42..b425d2587cdb 100644
--- a/arch/arm64/kernel/head.S
+++ b/arch/arm64/kernel/head.S
@@ -479,13 +479,14 @@ EXPORT_SYMBOL(kimage_vaddr)
* booted in EL1 or EL2 respectively.
*/
SYM_FUNC_START(init_kernel_el)
+ mov_q x0, INIT_SCTLR_EL1_MMU_OFF
+ msr sctlr_el1, x0
+
mrs x0, CurrentEL
cmp x0, #CurrentEL_EL2
b.eq init_el2
SYM_INNER_LABEL(init_el1, SYM_L_LOCAL)
- mov_q x0, INIT_SCTLR_EL1_MMU_OFF
- msr sctlr_el1, x0
isb
mov_q x0, INIT_PSTATE_EL1
msr spsr_el1, x0
@@ -494,9 +495,6 @@ SYM_INNER_LABEL(init_el1, SYM_L_LOCAL)
eret
SYM_INNER_LABEL(init_el2, SYM_L_LOCAL)
- mov_q x0, INIT_SCTLR_EL1_MMU_OFF
- msr sctlr_el1, x0
-
mov_q x0, HCR_HOST_NVHE_FLAGS
msr hcr_el2, x0
isb
--
2.29.2
More information about the linux-arm-kernel
mailing list