linux-kernel - [PATCH v4 3/6] KVM: x86: Move "emulate hypercall" function declarations to x86.h

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Message-ID: <20241128004344.4072099-4-seanjc@google.com>
Date: Wed, 27 Nov 2024 16:43:41 -0800
From: Sean Christopherson <seanjc@...gle.com>
To: Sean Christopherson <seanjc@...gle.com>, Paolo Bonzini <pbonzini@...hat.com>
Cc: kvm@...r.kernel.org, linux-kernel@...r.kernel.org, 
	Tom Lendacky <thomas.lendacky@....com>, Binbin Wu <binbin.wu@...ux.intel.com>, 
	Isaku Yamahata <isaku.yamahata@...el.com>, Kai Huang <kai.huang@...el.com>, 
	Xiaoyao Li <xiaoyao.li@...el.com>
Subject: [PATCH v4 3/6] KVM: x86: Move "emulate hypercall" function
 declarations to x86.h

Move the declarations for the hypercall emulation APIs to x86.h.  While
the helpers are exported, they are intended to be consumed only KVM vendor
modules, i.e. don't need to exposed to the kernel at-large.

No functional change intended.

Signed-off-by: Sean Christopherson <seanjc@...gle.com>
---
 arch/x86/include/asm/kvm_host.h | 6 ------
 arch/x86/kvm/x86.h              | 6 ++++++
 2 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h
index e159e44a6a1b..c1251b371421 100644
--- a/arch/x86/include/asm/kvm_host.h
+++ b/arch/x86/include/asm/kvm_host.h
@@ -2181,12 +2181,6 @@ static inline void kvm_clear_apicv_inhibit(struct kvm *kvm,
 	kvm_set_or_clear_apicv_inhibit(kvm, reason, false);
 }
 
-unsigned long __kvm_emulate_hypercall(struct kvm_vcpu *vcpu, unsigned long nr,
-				      unsigned long a0, unsigned long a1,
-				      unsigned long a2, unsigned long a3,
-				      int op_64_bit, int cpl);
-int kvm_emulate_hypercall(struct kvm_vcpu *vcpu);
-
 int kvm_mmu_page_fault(struct kvm_vcpu *vcpu, gpa_t cr2_or_gpa, u64 error_code,
 		       void *insn, int insn_len);
 void kvm_mmu_print_sptes(struct kvm_vcpu *vcpu, gpa_t gpa, const char *msg);
diff --git a/arch/x86/kvm/x86.h b/arch/x86/kvm/x86.h
index 45dd53284dbd..6db13b696468 100644
--- a/arch/x86/kvm/x86.h
+++ b/arch/x86/kvm/x86.h
@@ -617,4 +617,10 @@ static inline bool user_exit_on_hypercall(struct kvm *kvm, unsigned long hc_nr)
 	return kvm->arch.hypercall_exit_enabled & BIT(hc_nr);
 }
 
+unsigned long __kvm_emulate_hypercall(struct kvm_vcpu *vcpu, unsigned long nr,
+				      unsigned long a0, unsigned long a1,
+				      unsigned long a2, unsigned long a3,
+				      int op_64_bit, int cpl);
+int kvm_emulate_hypercall(struct kvm_vcpu *vcpu);
+
 #endif
-- 
2.47.0.338.g60cca15819-goog