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From: Oliver Upton <oliver.upton@linux.dev>
To: kvmarm@lists.cs.columbia.edu
Cc: kvm@vger.kernel.org, maz@kernel.org, will@kernel.org,
	linux-arm-kernel@lists.infradead.org
Subject: [PATCH 3/6] KVM: arm64: Spin off helper for calling visibility hook
Date: Wed, 17 Aug 2022 21:48:15 +0000	[thread overview]
Message-ID: <20220817214818.3243383-4-oliver.upton@linux.dev> (raw)
In-Reply-To: <20220817214818.3243383-1-oliver.upton@linux.dev>

No functional change intended.

Signed-off-by: Oliver Upton <oliver.upton@linux.dev>
---
 arch/arm64/kvm/sys_regs.h | 19 +++++++++++--------
 1 file changed, 11 insertions(+), 8 deletions(-)

diff --git a/arch/arm64/kvm/sys_regs.h b/arch/arm64/kvm/sys_regs.h
index a8c4cc32eb9a..e78b51059622 100644
--- a/arch/arm64/kvm/sys_regs.h
+++ b/arch/arm64/kvm/sys_regs.h
@@ -136,22 +136,25 @@ static inline void reset_val(struct kvm_vcpu *vcpu, const struct sys_reg_desc *r
 	__vcpu_sys_reg(vcpu, r->reg) = r->val;
 }
 
-static inline bool sysreg_hidden(const struct kvm_vcpu *vcpu,
-				 const struct sys_reg_desc *r)
+static inline unsigned int sysreg_visibility(const struct kvm_vcpu *vcpu,
+					     const struct sys_reg_desc *r)
 {
 	if (likely(!r->visibility))
-		return false;
+		return 0;
 
-	return r->visibility(vcpu, r) & REG_HIDDEN;
+	return r->visibility(vcpu, r);
+}
+
+static inline bool sysreg_hidden(const struct kvm_vcpu *vcpu,
+				 const struct sys_reg_desc *r)
+{
+	return sysreg_visibility(vcpu, r) & REG_HIDDEN;
 }
 
 static inline bool sysreg_visible_as_raz(const struct kvm_vcpu *vcpu,
 					 const struct sys_reg_desc *r)
 {
-	if (likely(!r->visibility))
-		return false;
-
-	return r->visibility(vcpu, r) & REG_RAZ;
+	return sysreg_visibility(vcpu, r) & REG_RAZ;
 }
 
 static inline int cmp_sys_reg(const struct sys_reg_desc *i1,
-- 
2.37.1.595.g718a3a8f04-goog

_______________________________________________
kvmarm mailing list
kvmarm@lists.cs.columbia.edu
https://lists.cs.columbia.edu/mailman/listinfo/kvmarm

WARNING: multiple messages have this Message-ID (diff)
From: Oliver Upton <oliver.upton@linux.dev>
To: kvmarm@lists.cs.columbia.edu
Cc: kvm@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
	maz@kernel.org, james.morse@arm.com, alexandru.elisei@arm.com,
	suzuki.poulose@arm.com, will@kernel.org,
	Oliver Upton <oliver.upton@linux.dev>
Subject: [PATCH 3/6] KVM: arm64: Spin off helper for calling visibility hook
Date: Wed, 17 Aug 2022 21:48:15 +0000	[thread overview]
Message-ID: <20220817214818.3243383-4-oliver.upton@linux.dev> (raw)
In-Reply-To: <20220817214818.3243383-1-oliver.upton@linux.dev>

No functional change intended.

Signed-off-by: Oliver Upton <oliver.upton@linux.dev>
---
 arch/arm64/kvm/sys_regs.h | 19 +++++++++++--------
 1 file changed, 11 insertions(+), 8 deletions(-)

diff --git a/arch/arm64/kvm/sys_regs.h b/arch/arm64/kvm/sys_regs.h
index a8c4cc32eb9a..e78b51059622 100644
--- a/arch/arm64/kvm/sys_regs.h
+++ b/arch/arm64/kvm/sys_regs.h
@@ -136,22 +136,25 @@ static inline void reset_val(struct kvm_vcpu *vcpu, const struct sys_reg_desc *r
 	__vcpu_sys_reg(vcpu, r->reg) = r->val;
 }
 
-static inline bool sysreg_hidden(const struct kvm_vcpu *vcpu,
-				 const struct sys_reg_desc *r)
+static inline unsigned int sysreg_visibility(const struct kvm_vcpu *vcpu,
+					     const struct sys_reg_desc *r)
 {
 	if (likely(!r->visibility))
-		return false;
+		return 0;
 
-	return r->visibility(vcpu, r) & REG_HIDDEN;
+	return r->visibility(vcpu, r);
+}
+
+static inline bool sysreg_hidden(const struct kvm_vcpu *vcpu,
+				 const struct sys_reg_desc *r)
+{
+	return sysreg_visibility(vcpu, r) & REG_HIDDEN;
 }
 
 static inline bool sysreg_visible_as_raz(const struct kvm_vcpu *vcpu,
 					 const struct sys_reg_desc *r)
 {
-	if (likely(!r->visibility))
-		return false;
-
-	return r->visibility(vcpu, r) & REG_RAZ;
+	return sysreg_visibility(vcpu, r) & REG_RAZ;
 }
 
 static inline int cmp_sys_reg(const struct sys_reg_desc *i1,
-- 
2.37.1.595.g718a3a8f04-goog


_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel

WARNING: multiple messages have this Message-ID (diff)
From: Oliver Upton <oliver.upton@linux.dev>
To: kvmarm@lists.cs.columbia.edu
Cc: kvm@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
	maz@kernel.org, james.morse@arm.com, alexandru.elisei@arm.com,
	suzuki.poulose@arm.com, will@kernel.org,
	Oliver Upton <oliver.upton@linux.dev>
Subject: [PATCH 3/6] KVM: arm64: Spin off helper for calling visibility hook
Date: Wed, 17 Aug 2022 21:48:15 +0000	[thread overview]
Message-ID: <20220817214818.3243383-4-oliver.upton@linux.dev> (raw)
In-Reply-To: <20220817214818.3243383-1-oliver.upton@linux.dev>

No functional change intended.

Signed-off-by: Oliver Upton <oliver.upton@linux.dev>
---
 arch/arm64/kvm/sys_regs.h | 19 +++++++++++--------
 1 file changed, 11 insertions(+), 8 deletions(-)

diff --git a/arch/arm64/kvm/sys_regs.h b/arch/arm64/kvm/sys_regs.h
index a8c4cc32eb9a..e78b51059622 100644
--- a/arch/arm64/kvm/sys_regs.h
+++ b/arch/arm64/kvm/sys_regs.h
@@ -136,22 +136,25 @@ static inline void reset_val(struct kvm_vcpu *vcpu, const struct sys_reg_desc *r
 	__vcpu_sys_reg(vcpu, r->reg) = r->val;
 }
 
-static inline bool sysreg_hidden(const struct kvm_vcpu *vcpu,
-				 const struct sys_reg_desc *r)
+static inline unsigned int sysreg_visibility(const struct kvm_vcpu *vcpu,
+					     const struct sys_reg_desc *r)
 {
 	if (likely(!r->visibility))
-		return false;
+		return 0;
 
-	return r->visibility(vcpu, r) & REG_HIDDEN;
+	return r->visibility(vcpu, r);
+}
+
+static inline bool sysreg_hidden(const struct kvm_vcpu *vcpu,
+				 const struct sys_reg_desc *r)
+{
+	return sysreg_visibility(vcpu, r) & REG_HIDDEN;
 }
 
 static inline bool sysreg_visible_as_raz(const struct kvm_vcpu *vcpu,
 					 const struct sys_reg_desc *r)
 {
-	if (likely(!r->visibility))
-		return false;
-
-	return r->visibility(vcpu, r) & REG_RAZ;
+	return sysreg_visibility(vcpu, r) & REG_RAZ;
 }
 
 static inline int cmp_sys_reg(const struct sys_reg_desc *i1,
-- 
2.37.1.595.g718a3a8f04-goog


  parent reply	other threads:[~2022-08-17 21:48 UTC|newest]

Thread overview: 48+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-08-17 21:48 [PATCH 0/6] KVM: arm64: Treat 32bit ID registers as RAZ/WI on 64bit-only system Oliver Upton
2022-08-17 21:48 ` Oliver Upton
2022-08-17 21:48 ` Oliver Upton
2022-08-17 21:48 ` [PATCH 1/6] KVM: arm64: Use visibility hook to treat ID regs as RAZ Oliver Upton
2022-08-17 21:48   ` Oliver Upton
2022-08-17 21:48   ` Oliver Upton
2022-08-30  4:54   ` Reiji Watanabe
2022-08-30  4:54     ` Reiji Watanabe
2022-08-30  4:54     ` Reiji Watanabe
2022-08-17 21:48 ` [PATCH 2/6] KVM: arm64: Remove internal accessor helpers for id regs Oliver Upton
2022-08-17 21:48   ` Oliver Upton
2022-08-17 21:48   ` Oliver Upton
2022-08-30  5:45   ` Reiji Watanabe
2022-08-30  5:45     ` Reiji Watanabe
2022-08-30  5:45     ` Reiji Watanabe
2022-08-30 17:45     ` Oliver Upton
2022-08-30 17:45       ` Oliver Upton
2022-08-30 17:45       ` Oliver Upton
2022-08-17 21:48 ` Oliver Upton [this message]
2022-08-17 21:48   ` [PATCH 3/6] KVM: arm64: Spin off helper for calling visibility hook Oliver Upton
2022-08-17 21:48   ` Oliver Upton
2022-08-30  6:01   ` Reiji Watanabe
2022-08-30  6:01     ` Reiji Watanabe
2022-08-30  6:01     ` Reiji Watanabe
2022-08-17 21:48 ` [PATCH 4/6] KVM: arm64: Add a visibility bit to ignore user writes Oliver Upton
2022-08-17 21:48   ` Oliver Upton
2022-08-17 21:48   ` Oliver Upton
2022-08-31  3:29   ` Reiji Watanabe
2022-08-31  3:29     ` Reiji Watanabe
2022-08-31  3:29     ` Reiji Watanabe
2022-08-31 14:42     ` Oliver Upton
2022-08-31 14:42       ` Oliver Upton
2022-08-31 14:42       ` Oliver Upton
2022-09-01  4:57       ` Reiji Watanabe
2022-09-01  4:57         ` Reiji Watanabe
2022-09-01  4:57         ` Reiji Watanabe
2022-08-17 21:48 ` [PATCH 5/6] KVM: arm64: Treat 32bit ID registers as RAZ/WI on 64bit-only system Oliver Upton
2022-08-17 21:48   ` Oliver Upton
2022-08-17 21:48   ` Oliver Upton
2022-08-23 17:05   ` Marc Zyngier
2022-08-23 17:05     ` Marc Zyngier
2022-08-23 17:05     ` Marc Zyngier
2022-08-23 17:27     ` Oliver Upton
2022-08-23 17:27       ` Oliver Upton
2022-08-23 17:27       ` Oliver Upton
2022-08-17 21:48 ` [PATCH 6/6] KVM: selftests: Add test for RAZ/WI AArch32 ID registers Oliver Upton
2022-08-17 21:48   ` Oliver Upton
2022-08-17 21:48   ` Oliver Upton

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