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From: Anshuman Khandual <anshuman.khandual@arm.com>
To: linux-arm-kernel@lists.infradead.org
Cc: Anshuman Khandual <anshuman.khandual@arm.com>,
	Marc Zyngier <maz@kernel.org>, James Morse <james.morse@arm.com>,
	Alexandru Elisei <alexandru.elisei@arm.com>,
	Suzuki K Poulose <suzuki.poulose@arm.com>,
	Catalin Marinas <catalin.marinas@arm.com>,
	Will Deacon <will@kernel.org>,
	kvmarm@lists.cs.columbia.edu, linux-kernel@vger.kernel.org
Subject: [PATCH V2 2/5] KVM: arm64: Use ARM64_MIN_PARANGE_BITS as the minimum supported IPA
Date: Thu, 12 Aug 2021 10:39:51 +0530	[thread overview]
Message-ID: <1628744994-16623-3-git-send-email-anshuman.khandual@arm.com> (raw)
In-Reply-To: <1628744994-16623-1-git-send-email-anshuman.khandual@arm.com>

Drop hard coded value for the minimum supported IPA range bits (i.e 32).
Instead use ARM64_MIN_PARANGE_BITS which improves the code readability.

Cc: Marc Zyngier <maz@kernel.org>
Cc: James Morse <james.morse@arm.com>
Cc: Alexandru Elisei <alexandru.elisei@arm.com>
Cc: Suzuki K Poulose <suzuki.poulose@arm.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Will Deacon <will@kernel.org>
Cc: linux-arm-kernel@lists.infradead.org
Cc: kvmarm@lists.cs.columbia.edu
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Anshuman Khandual <anshuman.khandual@arm.com>
---
 arch/arm64/kvm/reset.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm64/kvm/reset.c b/arch/arm64/kvm/reset.c
index cba7872d69a8..acf309698f33 100644
--- a/arch/arm64/kvm/reset.c
+++ b/arch/arm64/kvm/reset.c
@@ -369,7 +369,7 @@ int kvm_arm_setup_stage2(struct kvm *kvm, unsigned long type)
 	phys_shift = KVM_VM_TYPE_ARM_IPA_SIZE(type);
 	if (phys_shift) {
 		if (phys_shift > kvm_ipa_limit ||
-		    phys_shift < 32)
+		    phys_shift < ARM64_MIN_PARANGE_BITS)
 			return -EINVAL;
 	} else {
 		phys_shift = KVM_PHYS_SHIFT;
-- 
2.20.1


WARNING: multiple messages have this Message-ID (diff)
From: Anshuman Khandual <anshuman.khandual@arm.com>
To: linux-arm-kernel@lists.infradead.org
Cc: Will Deacon <will@kernel.org>, Marc Zyngier <maz@kernel.org>,
	Anshuman Khandual <anshuman.khandual@arm.com>,
	linux-kernel@vger.kernel.org,
	Catalin Marinas <catalin.marinas@arm.com>,
	kvmarm@lists.cs.columbia.edu
Subject: [PATCH V2 2/5] KVM: arm64: Use ARM64_MIN_PARANGE_BITS as the minimum supported IPA
Date: Thu, 12 Aug 2021 10:39:51 +0530	[thread overview]
Message-ID: <1628744994-16623-3-git-send-email-anshuman.khandual@arm.com> (raw)
In-Reply-To: <1628744994-16623-1-git-send-email-anshuman.khandual@arm.com>

Drop hard coded value for the minimum supported IPA range bits (i.e 32).
Instead use ARM64_MIN_PARANGE_BITS which improves the code readability.

Cc: Marc Zyngier <maz@kernel.org>
Cc: James Morse <james.morse@arm.com>
Cc: Alexandru Elisei <alexandru.elisei@arm.com>
Cc: Suzuki K Poulose <suzuki.poulose@arm.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Will Deacon <will@kernel.org>
Cc: linux-arm-kernel@lists.infradead.org
Cc: kvmarm@lists.cs.columbia.edu
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Anshuman Khandual <anshuman.khandual@arm.com>
---
 arch/arm64/kvm/reset.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm64/kvm/reset.c b/arch/arm64/kvm/reset.c
index cba7872d69a8..acf309698f33 100644
--- a/arch/arm64/kvm/reset.c
+++ b/arch/arm64/kvm/reset.c
@@ -369,7 +369,7 @@ int kvm_arm_setup_stage2(struct kvm *kvm, unsigned long type)
 	phys_shift = KVM_VM_TYPE_ARM_IPA_SIZE(type);
 	if (phys_shift) {
 		if (phys_shift > kvm_ipa_limit ||
-		    phys_shift < 32)
+		    phys_shift < ARM64_MIN_PARANGE_BITS)
 			return -EINVAL;
 	} else {
 		phys_shift = KVM_PHYS_SHIFT;
-- 
2.20.1

_______________________________________________
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: Anshuman Khandual <anshuman.khandual@arm.com>
To: linux-arm-kernel@lists.infradead.org
Cc: Anshuman Khandual <anshuman.khandual@arm.com>,
	Marc Zyngier <maz@kernel.org>, James Morse <james.morse@arm.com>,
	Alexandru Elisei <alexandru.elisei@arm.com>,
	Suzuki K Poulose <suzuki.poulose@arm.com>,
	Catalin Marinas <catalin.marinas@arm.com>,
	Will Deacon <will@kernel.org>,
	kvmarm@lists.cs.columbia.edu, linux-kernel@vger.kernel.org
Subject: [PATCH V2 2/5] KVM: arm64: Use ARM64_MIN_PARANGE_BITS as the minimum supported IPA
Date: Thu, 12 Aug 2021 10:39:51 +0530	[thread overview]
Message-ID: <1628744994-16623-3-git-send-email-anshuman.khandual@arm.com> (raw)
In-Reply-To: <1628744994-16623-1-git-send-email-anshuman.khandual@arm.com>

Drop hard coded value for the minimum supported IPA range bits (i.e 32).
Instead use ARM64_MIN_PARANGE_BITS which improves the code readability.

Cc: Marc Zyngier <maz@kernel.org>
Cc: James Morse <james.morse@arm.com>
Cc: Alexandru Elisei <alexandru.elisei@arm.com>
Cc: Suzuki K Poulose <suzuki.poulose@arm.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Will Deacon <will@kernel.org>
Cc: linux-arm-kernel@lists.infradead.org
Cc: kvmarm@lists.cs.columbia.edu
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Anshuman Khandual <anshuman.khandual@arm.com>
---
 arch/arm64/kvm/reset.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm64/kvm/reset.c b/arch/arm64/kvm/reset.c
index cba7872d69a8..acf309698f33 100644
--- a/arch/arm64/kvm/reset.c
+++ b/arch/arm64/kvm/reset.c
@@ -369,7 +369,7 @@ int kvm_arm_setup_stage2(struct kvm *kvm, unsigned long type)
 	phys_shift = KVM_VM_TYPE_ARM_IPA_SIZE(type);
 	if (phys_shift) {
 		if (phys_shift > kvm_ipa_limit ||
-		    phys_shift < 32)
+		    phys_shift < ARM64_MIN_PARANGE_BITS)
 			return -EINVAL;
 	} else {
 		phys_shift = KVM_PHYS_SHIFT;
-- 
2.20.1


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

  parent reply	other threads:[~2021-08-12  5:09 UTC|newest]

Thread overview: 21+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-08-12  5:09 [PATCH V2 0/5] KVM: arm64: General cleanups Anshuman Khandual
2021-08-12  5:09 ` Anshuman Khandual
2021-08-12  5:09 ` Anshuman Khandual
2021-08-12  5:09 ` [PATCH V2 1/5] arm64/mm: Add remaining ID_AA64MMFR0_PARANGE_ macros Anshuman Khandual
2021-08-12  5:09   ` Anshuman Khandual
2021-08-12  5:09   ` Anshuman Khandual
2021-08-12  5:09 ` Anshuman Khandual [this message]
2021-08-12  5:09   ` [PATCH V2 2/5] KVM: arm64: Use ARM64_MIN_PARANGE_BITS as the minimum supported IPA Anshuman Khandual
2021-08-12  5:09   ` Anshuman Khandual
2021-08-12  5:09 ` [PATCH V2 3/5] KVM: arm64: Drop init_common_resources() Anshuman Khandual
2021-08-12  5:09   ` Anshuman Khandual
2021-08-12  5:09   ` Anshuman Khandual
2021-08-12  5:09 ` [PATCH V2 4/5] KVM: arm64: Drop check_kvm_target_cpu() based percpu probe Anshuman Khandual
2021-08-12  5:09   ` Anshuman Khandual
2021-08-12  5:09   ` Anshuman Khandual
2021-08-12  5:09 ` [PATCH V2 5/5] KVM: arm64: Drop unused REQUIRES_VIRT Anshuman Khandual
2021-08-12  5:09   ` Anshuman Khandual
2021-08-12  5:09   ` Anshuman Khandual
2021-08-18  8:57 ` [PATCH V2 0/5] KVM: arm64: General cleanups Marc Zyngier
2021-08-18  8:57   ` Marc Zyngier
2021-08-18  8:57   ` Marc Zyngier

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