linux-kernel - [PATCH] arm64: kvm: Fix incorrect comment on kvm_get_hyp

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Message-Id: <20200515152550.83810-1-dbrazdil@google.com>
Date:   Fri, 15 May 2020 16:25:50 +0100
From:   David Brazdil <dbrazdil@...gle.com>
To:     Marc Zyngier <maz@...nel.org>
Cc:     kvmarm@...ts.cs.columbia.edu, linux-arm-kernel@...ts.infradead.org,
        linux-kernel@...r.kernel.org, David Brazdil <dbrazdil@...gle.com>
Subject: [PATCH] arm64: kvm: Fix incorrect comment on kvm_get_hyp_vector()

The comment used to say that kvm_get_hyp_vector is only called on VHE systems.
In fact, it is also called from the nVHE init function cpu_init_hyp_mode().
Fix the comment to stop confusing devs.

Signed-off-by: David Brazdil <dbrazdil@...gle.com>
---
 arch/arm64/include/asm/kvm_mmu.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm64/include/asm/kvm_mmu.h b/arch/arm64/include/asm/kvm_mmu.h
index 30b0e8d6b895..796f6a2e794a 100644
--- a/arch/arm64/include/asm/kvm_mmu.h
+++ b/arch/arm64/include/asm/kvm_mmu.h
@@ -473,7 +473,7 @@ static inline int kvm_write_guest_lock(struct kvm *kvm, gpa_t gpa,
 extern void *__kvm_bp_vect_base;
 extern int __kvm_harden_el2_vector_slot;
 
-/*  This is only called on a VHE system */
+/*  This is called on both VHE and !VHE systems */
 static inline void *kvm_get_hyp_vector(void)
 {
 	struct bp_hardening_data *data = arm64_get_bp_hardening_data();
-- 
2.26.2