From: Anshuman Khandual <anshuman.khandual@arm.com>
To: linux-arm-kernel@lists.infradead.org, catalin.marinas@arm.com
Cc: Anshuman Khandual <anshuman.khandual@arm.com>,
Marc Zyngier <maz@kernel.org>,
Oliver Upton <oliver.upton@linux.dev>,
Will Deacon <will@kernel.org>,
kvmarm@lists.linux.dev, linux-kernel@vger.kernel.org
Subject: [PATCH 1/2] KVM: arm64: Replace custom macros with fields from ID_AA64PFR0_EL1
Date: Thu, 18 Apr 2024 11:08:03 +0530 [thread overview]
Message-ID: <20240418053804.2573071-2-anshuman.khandual@arm.com> (raw)
In-Reply-To: <20240418053804.2573071-1-anshuman.khandual@arm.com>
This replaces custom macros usage (i.e ID_AA64PFR0_EL1_ELx_64BIT_ONLY and
ID_AA64PFR0_EL1_ELx_32BIT_64BIT) and instead directly uses register fields
from ID_AA64PFR0_EL1 sysreg definition.
Cc: Marc Zyngier <maz@kernel.org>
Cc: Oliver Upton <oliver.upton@linux.dev>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Will Deacon <will@kernel.org>
Cc: linux-arm-kernel@lists.infradead.org
Cc: kvmarm@lists.linux.dev
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Anshuman Khandual <anshuman.khandual@arm.com>
---
arch/arm64/kvm/hyp/include/nvhe/fixed_config.h | 8 ++++----
arch/arm64/kvm/hyp/nvhe/pkvm.c | 4 ++--
arch/arm64/kvm/hyp/nvhe/sys_regs.c | 2 +-
3 files changed, 7 insertions(+), 7 deletions(-)
diff --git a/arch/arm64/kvm/hyp/include/nvhe/fixed_config.h b/arch/arm64/kvm/hyp/include/nvhe/fixed_config.h
index 51f043649146..0034bfffced6 100644
--- a/arch/arm64/kvm/hyp/include/nvhe/fixed_config.h
+++ b/arch/arm64/kvm/hyp/include/nvhe/fixed_config.h
@@ -52,10 +52,10 @@
* Supported by KVM
*/
#define PVM_ID_AA64PFR0_RESTRICT_UNSIGNED (\
- FIELD_PREP(ARM64_FEATURE_MASK(ID_AA64PFR0_EL1_EL0), ID_AA64PFR0_EL1_ELx_64BIT_ONLY) | \
- FIELD_PREP(ARM64_FEATURE_MASK(ID_AA64PFR0_EL1_EL1), ID_AA64PFR0_EL1_ELx_64BIT_ONLY) | \
- FIELD_PREP(ARM64_FEATURE_MASK(ID_AA64PFR0_EL1_EL2), ID_AA64PFR0_EL1_ELx_64BIT_ONLY) | \
- FIELD_PREP(ARM64_FEATURE_MASK(ID_AA64PFR0_EL1_EL3), ID_AA64PFR0_EL1_ELx_64BIT_ONLY) | \
+ FIELD_PREP(ARM64_FEATURE_MASK(ID_AA64PFR0_EL1_EL0), ID_AA64PFR0_EL1_EL0_IMP) | \
+ FIELD_PREP(ARM64_FEATURE_MASK(ID_AA64PFR0_EL1_EL1), ID_AA64PFR0_EL1_EL1_IMP) | \
+ FIELD_PREP(ARM64_FEATURE_MASK(ID_AA64PFR0_EL1_EL2), ID_AA64PFR0_EL1_EL2_IMP) | \
+ FIELD_PREP(ARM64_FEATURE_MASK(ID_AA64PFR0_EL1_EL3), ID_AA64PFR0_EL1_EL3_IMP) | \
FIELD_PREP(ARM64_FEATURE_MASK(ID_AA64PFR0_EL1_RAS), ID_AA64PFR0_EL1_RAS_IMP) \
)
diff --git a/arch/arm64/kvm/hyp/nvhe/pkvm.c b/arch/arm64/kvm/hyp/nvhe/pkvm.c
index 26dd9a20ad6e..58da2fec89b2 100644
--- a/arch/arm64/kvm/hyp/nvhe/pkvm.c
+++ b/arch/arm64/kvm/hyp/nvhe/pkvm.c
@@ -31,9 +31,9 @@ static void pvm_init_traps_aa64pfr0(struct kvm_vcpu *vcpu)
/* Protected KVM does not support AArch32 guests. */
BUILD_BUG_ON(FIELD_GET(ARM64_FEATURE_MASK(ID_AA64PFR0_EL1_EL0),
- PVM_ID_AA64PFR0_RESTRICT_UNSIGNED) != ID_AA64PFR0_EL1_ELx_64BIT_ONLY);
+ PVM_ID_AA64PFR0_RESTRICT_UNSIGNED) != ID_AA64PFR0_EL1_EL0_IMP);
BUILD_BUG_ON(FIELD_GET(ARM64_FEATURE_MASK(ID_AA64PFR0_EL1_EL1),
- PVM_ID_AA64PFR0_RESTRICT_UNSIGNED) != ID_AA64PFR0_EL1_ELx_64BIT_ONLY);
+ PVM_ID_AA64PFR0_RESTRICT_UNSIGNED) != ID_AA64PFR0_EL1_EL1_IMP);
/*
* Linux guests assume support for floating-point and Advanced SIMD. Do
diff --git a/arch/arm64/kvm/hyp/nvhe/sys_regs.c b/arch/arm64/kvm/hyp/nvhe/sys_regs.c
index edd969a1f36b..2860548d4250 100644
--- a/arch/arm64/kvm/hyp/nvhe/sys_regs.c
+++ b/arch/arm64/kvm/hyp/nvhe/sys_regs.c
@@ -276,7 +276,7 @@ static bool pvm_access_id_aarch32(struct kvm_vcpu *vcpu,
* of AArch32 feature id registers.
*/
BUILD_BUG_ON(FIELD_GET(ARM64_FEATURE_MASK(ID_AA64PFR0_EL1_EL1),
- PVM_ID_AA64PFR0_RESTRICT_UNSIGNED) > ID_AA64PFR0_EL1_ELx_64BIT_ONLY);
+ PVM_ID_AA64PFR0_RESTRICT_UNSIGNED) > ID_AA64PFR0_EL1_EL1_IMP);
return pvm_access_raz_wi(vcpu, p, r);
}
--
2.25.1
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next prev parent reply other threads:[~2024-04-18 5:38 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-04-18 5:38 [PATCH 0/2] arm64: Drop ID_AA64PFR0_EL1_ELx_[64BIT_ONLY|32BIT_64BIT] Anshuman Khandual
2024-04-18 5:38 ` Anshuman Khandual [this message]
2024-04-18 7:39 ` [PATCH 1/2] KVM: arm64: Replace custom macros with fields from ID_AA64PFR0_EL1 Marc Zyngier
2024-04-29 2:23 ` Anshuman Khandual
2024-05-10 18:09 ` Mark Rutland
2024-05-13 5:28 ` Anshuman Khandual
2024-04-18 5:38 ` [PATCH 2/2] arm64/cpufeature: " Anshuman Khandual
2024-05-09 4:44 ` [PATCH 0/2] arm64: Drop ID_AA64PFR0_EL1_ELx_[64BIT_ONLY|32BIT_64BIT] Anshuman Khandual
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