linux-kernel - [PATCH 10/15] arm64: kvm: Fix {V}TCR_EL2

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Date:	Tue, 15 Sep 2015 16:41:19 +0100
From:	"Suzuki K. Poulose" <suzuki.poulose@....com>
To:	linux-arm-kernel@...ts.infradead.org
Cc:	linux-kernel@...r.kernel.org, Catalin.Marinas@....com,
	Will.Deacon@....com, Mark.Rutland@....com, Marc.Zyngier@....com,
	kvmarm@...ts.cs.columbia.edu, kvm@...r.kernel.org,
	ard.biesheuvel@...aro.org, suzuki.poulose@....com,
	Catalin Marinas <catalin.marinas@....com>,
	Will Deacon <will.deacon@....com>,
	Marc Zyngier <marc.zyngier@....com>,
	Christoffer Dall <christoffer.dall@...aro.org>
Subject: [PATCH 10/15] arm64: kvm: Fix {V}TCR_EL2_TG0 mask

From: "Suzuki K. Poulose" <suzuki.poulose@....com>

{V}TCR_EL2_TG0 is a 2bit wide field, where:

 00 - 4K
 01 - 64K
 10 - 16K

But we use only 1 bit, which has worked well so far since
we never cared about 16K. Fix it for 16K support.

Cc: Catalin Marinas <catalin.marinas@....com>
Cc: Will Deacon <will.deacon@....com>
Cc: Marc Zyngier <marc.zyngier@....com>
Cc: Christoffer Dall <christoffer.dall@...aro.org>
Cc: kvmarm@...ts.cs.columbia.edu
Acked-by: Mark Rutland <mark.rutland@....com>
Signed-off-by: Suzuki K. Poulose <suzuki.poulose@....com>
---
 arch/arm64/include/asm/kvm_arm.h |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/arm64/include/asm/kvm_arm.h b/arch/arm64/include/asm/kvm_arm.h
index 7605e09..bdf139e 100644
--- a/arch/arm64/include/asm/kvm_arm.h
+++ b/arch/arm64/include/asm/kvm_arm.h
@@ -98,7 +98,7 @@
 #define TCR_EL2_TBI	(1 << 20)
 #define TCR_EL2_PS	(7 << 16)
 #define TCR_EL2_PS_40B	(2 << 16)
-#define TCR_EL2_TG0	(1 << 14)
+#define TCR_EL2_TG0	(3 << 14)
 #define TCR_EL2_SH0	(3 << 12)
 #define TCR_EL2_ORGN0	(3 << 10)
 #define TCR_EL2_IRGN0	(3 << 8)
@@ -110,7 +110,7 @@
 
 /* VTCR_EL2 Registers bits */
 #define VTCR_EL2_PS_MASK	(7 << 16)
-#define VTCR_EL2_TG0_MASK	(1 << 14)
+#define VTCR_EL2_TG0_MASK	(3 << 14)
 #define VTCR_EL2_TG0_4K		(0 << 14)
 #define VTCR_EL2_TG0_64K	(1 << 14)
 #define VTCR_EL2_SH0_MASK	(3 << 12)
-- 
1.7.9.5

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