linux-kernel - [PATCH v5 07/28] KVM: arm64: Pull ctxt_has

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Message-Id: <20250417-kvm-arm64-sme-v5-7-f469a2d5f574@kernel.org>
Date: Thu, 17 Apr 2025 01:25:11 +0100
From: Mark Brown <broonie@...nel.org>
To: Marc Zyngier <maz@...nel.org>, Oliver Upton <oliver.upton@...ux.dev>, 
 Joey Gouly <joey.gouly@....com>, Catalin Marinas <catalin.marinas@....com>, 
 Suzuki K Poulose <suzuki.poulose@....com>, Will Deacon <will@...nel.org>, 
 Paolo Bonzini <pbonzini@...hat.com>, Jonathan Corbet <corbet@....net>, 
 Shuah Khan <shuah@...nel.org>
Cc: Dave Martin <Dave.Martin@....com>, Fuad Tabba <tabba@...gle.com>, 
 Mark Rutland <mark.rutland@....com>, linux-arm-kernel@...ts.infradead.org, 
 kvmarm@...ts.linux.dev, linux-kernel@...r.kernel.org, kvm@...r.kernel.org, 
 linux-doc@...r.kernel.org, linux-kselftest@...r.kernel.org, 
 Mark Brown <broonie@...nel.org>
Subject: [PATCH v5 07/28] KVM: arm64: Pull ctxt_has_ helpers to start of
 sysreg-sr.h

Rather than add earlier prototypes of specific ctxt_has_ helpers let's just
pull all their definitions to the top of sysreg-sr.h so they're all
available to all the individual save/restore functions.

Signed-off-by: Mark Brown <broonie@...nel.org>
---
 arch/arm64/kvm/hyp/include/hyp/sysreg-sr.h | 82 +++++++++++++++---------------
 1 file changed, 40 insertions(+), 42 deletions(-)

diff --git a/arch/arm64/kvm/hyp/include/hyp/sysreg-sr.h b/arch/arm64/kvm/hyp/include/hyp/sysreg-sr.h
index b9cff893bbe0..b795a7a87a93 100644
--- a/arch/arm64/kvm/hyp/include/hyp/sysreg-sr.h
+++ b/arch/arm64/kvm/hyp/include/hyp/sysreg-sr.h
@@ -16,8 +16,6 @@
 #include <asm/kvm_hyp.h>
 #include <asm/kvm_mmu.h>
 
-static inline bool ctxt_has_s1poe(struct kvm_cpu_context *ctxt);
-
 static inline struct kvm_vcpu *ctxt_to_vcpu(struct kvm_cpu_context *ctxt)
 {
 	struct kvm_vcpu *vcpu = ctxt->__hyp_running_vcpu;
@@ -28,6 +26,46 @@ static inline struct kvm_vcpu *ctxt_to_vcpu(struct kvm_cpu_context *ctxt)
 	return vcpu;
 }
 
+static inline bool ctxt_has_mte(struct kvm_cpu_context *ctxt)
+{
+	struct kvm_vcpu *vcpu = ctxt_to_vcpu(ctxt);
+
+	return kvm_has_mte(kern_hyp_va(vcpu->kvm));
+}
+
+static inline bool ctxt_has_s1pie(struct kvm_cpu_context *ctxt)
+{
+	struct kvm_vcpu *vcpu;
+
+	if (!cpus_have_final_cap(ARM64_HAS_S1PIE))
+		return false;
+
+	vcpu = ctxt_to_vcpu(ctxt);
+	return kvm_has_s1pie(kern_hyp_va(vcpu->kvm));
+}
+
+static inline bool ctxt_has_tcrx(struct kvm_cpu_context *ctxt)
+{
+	struct kvm_vcpu *vcpu;
+
+	if (!cpus_have_final_cap(ARM64_HAS_TCR2))
+		return false;
+
+	vcpu = ctxt_to_vcpu(ctxt);
+	return kvm_has_tcr2(kern_hyp_va(vcpu->kvm));
+}
+
+static inline bool ctxt_has_s1poe(struct kvm_cpu_context *ctxt)
+{
+	struct kvm_vcpu *vcpu;
+
+	if (!system_supports_poe())
+		return false;
+
+	vcpu = ctxt_to_vcpu(ctxt);
+	return kvm_has_s1poe(kern_hyp_va(vcpu->kvm));
+}
+
 static inline bool ctxt_is_guest(struct kvm_cpu_context *ctxt)
 {
 	return host_data_ptr(host_ctxt) != ctxt;
@@ -69,46 +107,6 @@ static inline void __sysreg_save_user_state(struct kvm_cpu_context *ctxt)
 	ctxt_sys_reg(ctxt, TPIDRRO_EL0)	= read_sysreg(tpidrro_el0);
 }
 
-static inline bool ctxt_has_mte(struct kvm_cpu_context *ctxt)
-{
-	struct kvm_vcpu *vcpu = ctxt_to_vcpu(ctxt);
-
-	return kvm_has_mte(kern_hyp_va(vcpu->kvm));
-}
-
-static inline bool ctxt_has_s1pie(struct kvm_cpu_context *ctxt)
-{
-	struct kvm_vcpu *vcpu;
-
-	if (!cpus_have_final_cap(ARM64_HAS_S1PIE))
-		return false;
-
-	vcpu = ctxt_to_vcpu(ctxt);
-	return kvm_has_s1pie(kern_hyp_va(vcpu->kvm));
-}
-
-static inline bool ctxt_has_tcrx(struct kvm_cpu_context *ctxt)
-{
-	struct kvm_vcpu *vcpu;
-
-	if (!cpus_have_final_cap(ARM64_HAS_TCR2))
-		return false;
-
-	vcpu = ctxt_to_vcpu(ctxt);
-	return kvm_has_tcr2(kern_hyp_va(vcpu->kvm));
-}
-
-static inline bool ctxt_has_s1poe(struct kvm_cpu_context *ctxt)
-{
-	struct kvm_vcpu *vcpu;
-
-	if (!system_supports_poe())
-		return false;
-
-	vcpu = ctxt_to_vcpu(ctxt);
-	return kvm_has_s1poe(kern_hyp_va(vcpu->kvm));
-}
-
 static inline void __sysreg_save_el1_state(struct kvm_cpu_context *ctxt)
 {
 	ctxt_sys_reg(ctxt, SCTLR_EL1)	= read_sysreg_el1(SYS_SCTLR);

-- 
2.39.5