[PATCH 1/4] arm64: Use INIT_SCTLR_EL1_MMU_OFF to disable the MMU on CPU restart
From: Marc Zyngier <maz@kernel.org>
Date: 2021-03-10 15:28:32
Also in:
kvm, kvmarm
Subsystem:
arm64 port (aarch64 architecture), the rest · Maintainers:
Catalin Marinas, Will Deacon, Linus Torvalds
Instead of doing a RMW on SCTLR_EL1 to disable the MMU, use the existing define that loads the right set of bits. Signed-off-by: Marc Zyngier <maz@kernel.org> --- arch/arm64/kernel/cpu-reset.S | 5 +---- 1 file changed, 1 insertion(+), 4 deletions(-)
diff --git a/arch/arm64/kernel/cpu-reset.S b/arch/arm64/kernel/cpu-reset.S
index 37721eb6f9a1..d47ff63a5b66 100644
--- a/arch/arm64/kernel/cpu-reset.S
+++ b/arch/arm64/kernel/cpu-reset.S@@ -30,10 +30,7 @@ * flat identity mapping. */ SYM_CODE_START(__cpu_soft_restart) - /* Clear sctlr_el1 flags. */ - mrs x12, sctlr_el1 - mov_q x13, SCTLR_ELx_FLAGS - bic x12, x12, x13 + mov_q x12, INIT_SCTLR_EL1_MMU_OFF pre_disable_mmu_workaround /* * either disable EL1&0 translation regime or disable EL2&0 translation
--
2.29.2
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