From: Marc Zyngier <maz@kernel.org>
Date: Wed, 23 Oct 2024 14:53:38 +0000 (+0100)
Subject: KVM: arm64: Add kvm_has_s1poe() helper
X-Git-Tag: v6.13-rc1~97^2~5^2~7^2~7
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=26e89dccdf6328b608baa35d84cc36d915769f50;p=thirdparty%2Flinux.git

KVM: arm64: Add kvm_has_s1poe() helper

Just like we have kvm_has_s1pie(), add its S1POE counterpart,
making the code slightly more readable.

Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20241023145345.1613824-31-maz@kernel.org
Signed-off-by: Oliver Upton <oliver.upton@linux.dev>
---

diff --git a/arch/arm64/include/asm/kvm_host.h b/arch/arm64/include/asm/kvm_host.h
index 063463d056444..9269d893f85bb 100644
--- a/arch/arm64/include/asm/kvm_host.h
+++ b/arch/arm64/include/asm/kvm_host.h
@@ -1525,4 +1525,7 @@ void kvm_set_vm_id_reg(struct kvm *kvm, u32 reg, u64 val);
 #define kvm_has_s1pie(k)				\
 	(kvm_has_feat((k), ID_AA64MMFR3_EL1, S1PIE, IMP))
 
+#define kvm_has_s1poe(k)				\
+	(kvm_has_feat((k), ID_AA64MMFR3_EL1, S1POE, IMP))
+
 #endif /* __ARM64_KVM_HOST_H__ */
diff --git a/arch/arm64/kvm/hyp/include/hyp/sysreg-sr.h b/arch/arm64/kvm/hyp/include/hyp/sysreg-sr.h
index a306ea70502c4..a651c43ad679f 100644
--- a/arch/arm64/kvm/hyp/include/hyp/sysreg-sr.h
+++ b/arch/arm64/kvm/hyp/include/hyp/sysreg-sr.h
@@ -80,7 +80,7 @@ static inline bool ctxt_has_s1poe(struct kvm_cpu_context *ctxt)
 		return false;
 
 	vcpu = ctxt_to_vcpu(ctxt);
-	return kvm_has_feat(kern_hyp_va(vcpu->kvm), ID_AA64MMFR3_EL1, S1POE, IMP);
+	return kvm_has_s1poe(kern_hyp_va(vcpu->kvm));
 }
 
 static inline void __sysreg_save_el1_state(struct kvm_cpu_context *ctxt)
diff --git a/arch/arm64/kvm/nested.c b/arch/arm64/kvm/nested.c
index 9838b92dde5f1..be88a36da071e 100644
--- a/arch/arm64/kvm/nested.c
+++ b/arch/arm64/kvm/nested.c
@@ -1107,7 +1107,7 @@ int kvm_init_nv_sysregs(struct kvm *kvm)
 		res0 |= HFGxTR_EL2_nRCWMASK_EL1;
 	if (!kvm_has_s1pie(kvm))
 		res0 |= (HFGxTR_EL2_nPIRE0_EL1 | HFGxTR_EL2_nPIR_EL1);
-	if (!kvm_has_feat(kvm, ID_AA64MMFR3_EL1, S1POE, IMP))
+	if (!kvm_has_s1poe(kvm))
 		res0 |= (HFGxTR_EL2_nPOR_EL0 | HFGxTR_EL2_nPOR_EL1);
 	if (!kvm_has_feat(kvm, ID_AA64MMFR3_EL1, S2POE, IMP))
 		res0 |= HFGxTR_EL2_nS2POR_EL1;
@@ -1217,7 +1217,7 @@ int kvm_init_nv_sysregs(struct kvm *kvm)
 		res0 |= TCR2_EL2_PTTWI | TCR2_EL2_PnCH;
 	if (!kvm_has_feat(kvm, ID_AA64MMFR3_EL1, AIE, IMP))
 		res0 |= TCR2_EL2_AIE;
-	if (!kvm_has_feat(kvm, ID_AA64MMFR3_EL1, S1POE, IMP))
+	if (!kvm_has_s1poe(kvm))
 		res0 |= TCR2_EL2_POE | TCR2_EL2_E0POE;
 	if (!kvm_has_s1pie(kvm))
 		res0 |= TCR2_EL2_PIE;
diff --git a/arch/arm64/kvm/sys_regs.c b/arch/arm64/kvm/sys_regs.c
index e0fbe71d58909..d46663f27fbaa 100644
--- a/arch/arm64/kvm/sys_regs.c
+++ b/arch/arm64/kvm/sys_regs.c
@@ -2323,7 +2323,7 @@ static bool access_zcr_el2(struct kvm_vcpu *vcpu,
 static unsigned int s1poe_visibility(const struct kvm_vcpu *vcpu,
 				     const struct sys_reg_desc *rd)
 {
-	if (kvm_has_feat(vcpu->kvm, ID_AA64MMFR3_EL1, S1POE, IMP))
+	if (kvm_has_s1poe(vcpu->kvm))
 		return 0;
 
 	return REG_HIDDEN;
@@ -4862,7 +4862,7 @@ void kvm_calculate_traps(struct kvm_vcpu *vcpu)
 		kvm->arch.fgu[HFGxTR_GROUP] |= (HFGxTR_EL2_nPIRE0_EL1 |
 						HFGxTR_EL2_nPIR_EL1);
 
-	if (!kvm_has_feat(kvm, ID_AA64MMFR3_EL1, S1POE, IMP))
+	if (!kvm_has_s1poe(kvm))
 		kvm->arch.fgu[HFGxTR_GROUP] |= (HFGxTR_EL2_nPOR_EL1 |
 						HFGxTR_EL2_nPOR_EL0);