Re: [v3 1/5] arm64: kvm: add a cpu tear-down function

From: AKASHI Takahiro
Date: Wed Apr 08 2015 - 23:54:19 EST

On 04/08/2015 10:02 PM, Mark Rutland wrote:
+ /* We're now in idmap, disable MMU */
+1: mrs x0, sctlr_el2
+ and x1, x0, #SCTLR_EL2_EE
+ orr x0, x0, x1 // preserve endianness of EL2
+ ldr x1, =SCTLR_EL2_FLAGS
+ eor x1, x1, xzr
+ bic x0, x0, x1 // Clear SCTL_M and etc
+ msr sctlr_el2, x0
+ isb

This can instead be:

1: mrs x0, sctlr_el2
ldr x1, =SCTLR_EL2_FLAGS
bic x0, x0, x1
msr sctlr_el2, x0

As SCTLR_EL2_FLAGS doesn't contain the EE bit.

Oops. I will fix it.

-Takahiro AKASHI


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