[PATCH v3 07/23] kvm: arm64: Initialize MAIR_EL2 using a constant
From: David Brazdil <hidden>
Date: 2020-11-26 15:55:29
Also in:
kvmarm, linux-doc, lkml
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
MAIR_EL2 is currently initialized to the value of MAIR_EL1, which itself is set to a constant MAIR_ELx_SET. Initialize MAIR_EL2 to MAIR_ELx_SET directly in preparation for allowing KVM to start CPU cores itself before ERETing to EL1. In that case, MAIR_EL2 will be initialized before MAIR_EL1. Signed-off-by: David Brazdil <redacted> --- arch/arm64/kvm/hyp/nvhe/hyp-init.S | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/arm64/kvm/hyp/nvhe/hyp-init.S b/arch/arm64/kvm/hyp/nvhe/hyp-init.S
index b11a9d7db677..17b58dbc3a2f 100644
--- a/arch/arm64/kvm/hyp/nvhe/hyp-init.S
+++ b/arch/arm64/kvm/hyp/nvhe/hyp-init.S@@ -111,7 +111,7 @@ alternative_else_nop_endif msr tcr_el2, x0 - mrs x0, mair_el1 + mov_q x0, MAIR_ELx_SET msr mair_el2, x0 isb
--
2.29.2.454.gaff20da3a2-goog
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