[PATCH 2/4] KVM: arm64: Use INIT_SCTLR_EL2_MMU_OFF to disable the MMU on KVM teardown
From: Marc Zyngier <maz@kernel.org>
Date: 2021-03-10 15:29:04
Also in:
kvm, kvmarm
Subsystem:
arm64 port (aarch64 architecture), kernel virtual machine for arm64 (kvm/arm64), the rest · Maintainers:
Catalin Marinas, Will Deacon, Marc Zyngier, Oliver Upton, Linus Torvalds
Instead of doing a RMW on SCTLR_EL2 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/kvm/hyp/nvhe/hyp-init.S | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-)
diff --git a/arch/arm64/kvm/hyp/nvhe/hyp-init.S b/arch/arm64/kvm/hyp/nvhe/hyp-init.S
index c631e29fb001..4eb584ae13d9 100644
--- a/arch/arm64/kvm/hyp/nvhe/hyp-init.S
+++ b/arch/arm64/kvm/hyp/nvhe/hyp-init.S@@ -221,9 +221,7 @@ SYM_CODE_START(__kvm_handle_stub_hvc) mov x0, xzr reset: /* Reset kvm back to the hyp stub. */ - mrs x5, sctlr_el2 - mov_q x6, SCTLR_ELx_FLAGS - bic x5, x5, x6 // Clear SCTL_M and etc + mov_q x5, INIT_SCTLR_EL2_MMU_OFF pre_disable_mmu_workaround msr sctlr_el2, x5 isb
--
2.29.2
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