KVM: Move prototypes for MMU notifier callbacks to generic code

Move the prototypes for the MMU notifier callbacks out of arch code and
into common code.  There is no benefit to having each arch replicate the
prototypes since any deviation from the invocation in common code will
explode.

No functional change intended.

Signed-off-by: Sean Christopherson <seanjc@google.com>
Message-Id: <20210326021957.1424875-9-seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

diff --git a/arch/arm64/include/asm/kvm_host.h b/arch/arm64/include/asm/kvm_host.h
index 3d10e6527f7de73bfe4be18987367f06557008d8..72e6b4600264fe99aba4e865280ab1aea7eedd57 100644 (file)
--- a/arch/arm64/include/asm/kvm_host.h
+++ b/arch/arm64/include/asm/kvm_host.h
@@ -582,11 +582,6 @@ int __kvm_arm_vcpu_set_events(struct kvm_vcpu *vcpu,
                              struct kvm_vcpu_events *events);
 
 #define KVM_ARCH_WANT_MMU_NOTIFIER
-int kvm_unmap_hva_range(struct kvm *kvm,
-                       unsigned long start, unsigned long end, unsigned flags);
-int kvm_set_spte_hva(struct kvm *kvm, unsigned long hva, pte_t pte);
-int kvm_age_hva(struct kvm *kvm, unsigned long start, unsigned long end);
-int kvm_test_age_hva(struct kvm *kvm, unsigned long hva);
 
 void kvm_arm_halt_guest(struct kvm *kvm);
 void kvm_arm_resume_guest(struct kvm *kvm);

diff --git a/arch/mips/include/asm/kvm_host.h b/arch/mips/include/asm/kvm_host.h
index 3a5612e7304cff660383868cdaa5416c818f71b1..feaa77036b67f3db641502999f8e3f3e007a45d0 100644 (file)
--- a/arch/mips/include/asm/kvm_host.h
+++ b/arch/mips/include/asm/kvm_host.h
@@ -967,11 +967,6 @@ enum kvm_mips_fault_result kvm_trap_emul_gva_fault(struct kvm_vcpu *vcpu,
                                                   bool write);
 
 #define KVM_ARCH_WANT_MMU_NOTIFIER
-int kvm_unmap_hva_range(struct kvm *kvm,
-                       unsigned long start, unsigned long end, unsigned flags);
-int kvm_set_spte_hva(struct kvm *kvm, unsigned long hva, pte_t pte);
-int kvm_age_hva(struct kvm *kvm, unsigned long start, unsigned long end);
-int kvm_test_age_hva(struct kvm *kvm, unsigned long hva);
 
 /* Emulation */
 int kvm_get_inst(u32 *opc, struct kvm_vcpu *vcpu, u32 *out);

diff --git a/arch/powerpc/include/asm/kvm_host.h b/arch/powerpc/include/asm/kvm_host.h
index 05fb00d37609c545f513324e3c25813c819287a8..1e83359f286b9f7fb03e2d681e091e5045e1cd20 100644 (file)
--- a/arch/powerpc/include/asm/kvm_host.h
+++ b/arch/powerpc/include/asm/kvm_host.h
@@ -56,13 +56,6 @@
 
 #define KVM_ARCH_WANT_MMU_NOTIFIER
 
-extern int kvm_unmap_hva_range(struct kvm *kvm,
-                              unsigned long start, unsigned long end,
-                              unsigned flags);
-extern int kvm_age_hva(struct kvm *kvm, unsigned long start, unsigned long end);
-extern int kvm_test_age_hva(struct kvm *kvm, unsigned long hva);
-extern int kvm_set_spte_hva(struct kvm *kvm, unsigned long hva, pte_t pte);
-
 #define HPTEG_CACHE_NUM                        (1 << 15)
 #define HPTEG_HASH_BITS_PTE            13
 #define HPTEG_HASH_BITS_PTE_LONG       12

diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h
index a52f973bdff6d5326ec3cccc8ddde06d2da27f80..99778ac51243a9f1aee212ccdafbcd5c029ae0d3 100644 (file)
--- a/arch/x86/include/asm/kvm_host.h
+++ b/arch/x86/include/asm/kvm_host.h
@@ -1718,11 +1718,7 @@ asmlinkage void kvm_spurious_fault(void);
        _ASM_EXTABLE(666b, 667b)
 
 #define KVM_ARCH_WANT_MMU_NOTIFIER
-int kvm_unmap_hva_range(struct kvm *kvm, unsigned long start, unsigned long end,
-                       unsigned flags);
-int kvm_age_hva(struct kvm *kvm, unsigned long start, unsigned long end);
-int kvm_test_age_hva(struct kvm *kvm, unsigned long hva);
-int kvm_set_spte_hva(struct kvm *kvm, unsigned long hva, pte_t pte);
+
 int kvm_cpu_has_injectable_intr(struct kvm_vcpu *v);
 int kvm_cpu_has_interrupt(struct kvm_vcpu *vcpu);
 int kvm_cpu_has_extint(struct kvm_vcpu *v);

diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h
index 1b65e7204344a55d195ec25c299453a68d8c046b..e6d77353025cbea12f9e76b4bcaee81b3cbf1e44 100644 (file)
--- a/include/linux/kvm_host.h
+++ b/include/linux/kvm_host.h
@@ -218,6 +218,14 @@ bool kvm_setup_async_pf(struct kvm_vcpu *vcpu, gpa_t cr2_or_gpa,
 int kvm_async_pf_wakeup_all(struct kvm_vcpu *vcpu);
 #endif
 
+#ifdef KVM_ARCH_WANT_MMU_NOTIFIER
+int kvm_unmap_hva_range(struct kvm *kvm,
+                       unsigned long start, unsigned long end, unsigned flags);
+int kvm_set_spte_hva(struct kvm *kvm, unsigned long hva, pte_t pte);
+int kvm_age_hva(struct kvm *kvm, unsigned long start, unsigned long end);
+int kvm_test_age_hva(struct kvm *kvm, unsigned long hva);
+#endif
+
 enum {
        OUTSIDE_GUEST_MODE,
        IN_GUEST_MODE,