linux-kernel - [PATCH v5 01/22] KVM: arm64: Introduce template for inline functions

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Message-Id: <20220322080710.51727-2-gshan@redhat.com>
Date:   Tue, 22 Mar 2022 16:06:49 +0800
From:   Gavin Shan <gshan@...hat.com>
To:     kvmarm@...ts.cs.columbia.edu
Cc:     linux-kernel@...r.kernel.org, eauger@...hat.com,
        shannon.zhaosl@...il.com, maz@...nel.org,
        Jonathan.Cameron@...wei.com, will@...nel.org, pbonzini@...hat.com,
        james.morse@....com, mark.rutland@....com, drjones@...hat.com,
        vkuznets@...hat.com, shan.gavin@...il.com
Subject: [PATCH v5 01/22] KVM: arm64: Introduce template for inline functions

The inline functions used to get the SMCCC parameters have same
layout. It means these functions can be presented by an unified
template, to make the code simplified. Besides, this adds more
similar inline functions like smccc_get_arg{4,5,6,7,8}() to get
more SMCCC arguments, which are needed by SDEI virtualization
support.

Signed-off-by: Gavin Shan <gshan@...hat.com>
---
 include/kvm/arm_hypercalls.h | 24 ++++++++++++------------
 1 file changed, 12 insertions(+), 12 deletions(-)

diff --git a/include/kvm/arm_hypercalls.h b/include/kvm/arm_hypercalls.h
index 0e2509d27910..d5144c852fe4 100644
--- a/include/kvm/arm_hypercalls.h
+++ b/include/kvm/arm_hypercalls.h
@@ -13,20 +13,20 @@ static inline u32 smccc_get_function(struct kvm_vcpu *vcpu)
 	return vcpu_get_reg(vcpu, 0);
 }
 
-static inline unsigned long smccc_get_arg1(struct kvm_vcpu *vcpu)
-{
-	return vcpu_get_reg(vcpu, 1);
-}
-
-static inline unsigned long smccc_get_arg2(struct kvm_vcpu *vcpu)
-{
-	return vcpu_get_reg(vcpu, 2);
+#define SMCCC_DECLARE_GET_ARG(reg)					\
+static inline unsigned long smccc_get_arg##reg(struct kvm_vcpu *vcpu)	\
+{									\
+	return vcpu_get_reg(vcpu, reg);					\
 }
 
-static inline unsigned long smccc_get_arg3(struct kvm_vcpu *vcpu)
-{
-	return vcpu_get_reg(vcpu, 3);
-}
+SMCCC_DECLARE_GET_ARG(1)
+SMCCC_DECLARE_GET_ARG(2)
+SMCCC_DECLARE_GET_ARG(3)
+SMCCC_DECLARE_GET_ARG(4)
+SMCCC_DECLARE_GET_ARG(5)
+SMCCC_DECLARE_GET_ARG(6)
+SMCCC_DECLARE_GET_ARG(7)
+SMCCC_DECLARE_GET_ARG(8)
 
 static inline void smccc_set_retval(struct kvm_vcpu *vcpu,
 				    unsigned long a0,
-- 
2.23.0