linux-kernel - [PATCH 5.11 25/31] arm64: Unconditionally set virtual cpu id registers

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Date:   Fri, 19 Mar 2021 13:19:19 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Vladimir Murzin <vladimir.murzin@....com>,
        Will Deacon <will@...nel.org>, Marc Zyngier <maz@...nel.org>
Subject: [PATCH 5.11 25/31] arm64: Unconditionally set virtual cpu id registers

From: Vladimir Murzin <vladimir.murzin@....com>

Commit 78869f0f0552 ("arm64: Extract parts of el2_setup into a macro")
reorganized el2 setup in such way that virtual cpu id registers set
only in nVHE, yet they used (and need) to be set irrespective VHE
support.

Fixes: 78869f0f0552 ("arm64: Extract parts of el2_setup into a macro")
Signed-off-by: Vladimir Murzin <vladimir.murzin@....com>
Acked-by: Will Deacon <will@...nel.org>
Reviewed-by: Marc Zyngier <maz@...nel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
 arch/arm64/include/asm/el2_setup.h |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

--- a/arch/arm64/include/asm/el2_setup.h
+++ b/arch/arm64/include/asm/el2_setup.h
@@ -111,7 +111,7 @@
 .endm
 
 /* Virtual CPU ID registers */
-.macro __init_el2_nvhe_idregs
+.macro __init_el2_idregs
 	mrs	x0, midr_el1
 	mrs	x1, mpidr_el1
 	msr	vpidr_el2, x0
@@ -163,6 +163,7 @@
 	__init_el2_stage2
 	__init_el2_gicv3
 	__init_el2_hstr
+	__init_el2_idregs
 
 	/*
 	 * When VHE is not in use, early init of EL2 needs to be done here.
@@ -171,7 +172,6 @@
 	 * will be done via the _EL1 system register aliases in __cpu_setup.
 	 */
 .ifeqs "\mode", "nvhe"
-	__init_el2_nvhe_idregs
 	__init_el2_nvhe_cptr
 	__init_el2_nvhe_sve
 	__init_el2_nvhe_prepare_eret