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Commit 84ed7412 authored by Marc Zyngier's avatar Marc Zyngier Committed by Christoffer Dall
Browse files

arm64: KVM: Fix outdated comment about VTCR_EL2.PS 



Commit 87366d8c ("arm64: Add boot time configuration of
Intermediate Physical Address size") removed the hardcoded setting
of VTCR_EL2.PS to use ID_AA64MMFR0_EL1.PARange instead, but didn't
remove the (now rather misleading) comment.

Fix the comments to match reality (at least for the next few minutes).

Acked-by: default avatarChristoffer Dall <christoffer.dall@linaro.org>
Signed-off-by: default avatarMarc Zyngier <marc.zyngier@arm.com>
Signed-off-by: default avatarChristoffer Dall <christoffer.dall@linaro.org>
parent 04b8dc85

arch/arm64/include/asm/kvm_arm.h

+3 −2
Original line number Diff line number Diff line
@@ -129,6 +129,9 @@ 
 * 40 bits wide (T0SZ = 24).  Systems with a PARange smaller than 40 bits are

 * not known to exist and will break with this configuration.

 *

 * VTCR_EL2.PS is extracted from ID_AA64MMFR0_EL1.PARange at boot time

 * (see hyp-init.S).

 *

 * Note that when using 4K pages, we concatenate two first level page tables

 * together.

 *
@@ -138,7 +141,6 @@ 
#ifdef CONFIG_ARM64_64K_PAGES

/*

 * Stage2 translation configuration:

 * 40bits output (PS = 2)

 * 40bits input  (T0SZ = 24)

 * 64kB pages (TG0 = 1)

 * 2 level page tables (SL = 1)
@@ -150,7 +152,6 @@ 
#else

/*

 * Stage2 translation configuration:

 * 40bits output (PS = 2)

 * 40bits input  (T0SZ = 24)

 * 4kB pages (TG0 = 0)

 * 3 level page tables (SL = 1)