KVM: Remove obsolete kvm_unmap_hva notifier backend

kvm_unmap_hva is long gone, and we only have kvm_unmap_hva_range to
deal with. Drop the now obsolete code.

Fixes: 3e712df46335 ("KVM: update to new mmu_notifier semantic v2")
Cc: James Hogan <jhogan@kernel.org>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Christoffer Dall <christoffer.dall@arm.com>

diff --git a/arch/arm/include/asm/kvm_host.h b/arch/arm/include/asm/kvm_host.h
index 79906cecb091e4fbf8dafb850d9d4b7ea19c3c41..3ad482d2f1eb91c8bfe6b597788e1e70b9521234 100644 (file)
--- a/arch/arm/include/asm/kvm_host.h
+++ b/arch/arm/include/asm/kvm_host.h
@@ -223,7 +223,6 @@ 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(struct kvm *kvm, unsigned long hva);
 int kvm_unmap_hva_range(struct kvm *kvm,
                        unsigned long start, unsigned long end);
 void kvm_set_spte_hva(struct kvm *kvm, unsigned long hva, pte_t pte);

diff --git a/arch/arm64/include/asm/kvm_host.h b/arch/arm64/include/asm/kvm_host.h
index f26055f2306e1f9a479417507c2edf428c9f99de..8e6d46df38aa0b1c05cdbcded6159d1d6b15d5e2 100644 (file)
--- a/arch/arm64/include/asm/kvm_host.h
+++ b/arch/arm64/include/asm/kvm_host.h
@@ -357,7 +357,6 @@ 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(struct kvm *kvm, unsigned long hva);
 int kvm_unmap_hva_range(struct kvm *kvm,
                        unsigned long start, unsigned long end);
 void kvm_set_spte_hva(struct kvm *kvm, unsigned long hva, pte_t pte);

diff --git a/arch/mips/include/asm/kvm_host.h b/arch/mips/include/asm/kvm_host.h
index a9af1d2dcd699114d00a55689c29137cef384841..2c1c53d12179302140d3576dddd11a732a5b13d9 100644 (file)
--- a/arch/mips/include/asm/kvm_host.h
+++ b/arch/mips/include/asm/kvm_host.h
@@ -931,7 +931,6 @@ 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(struct kvm *kvm, unsigned long hva);
 int kvm_unmap_hva_range(struct kvm *kvm,
                        unsigned long start, unsigned long end);
 void kvm_set_spte_hva(struct kvm *kvm, unsigned long hva, pte_t pte);

diff --git a/arch/mips/kvm/mmu.c b/arch/mips/kvm/mmu.c
index ee64db03279336db79ac5c98e7634074d47608ac..d8dcdb350405900928b83e7afa2112ecf3122518 100644 (file)
--- a/arch/mips/kvm/mmu.c
+++ b/arch/mips/kvm/mmu.c
@@ -512,16 +512,6 @@ static int kvm_unmap_hva_handler(struct kvm *kvm, gfn_t gfn, gfn_t gfn_end,
        return 1;
 }
 
-int kvm_unmap_hva(struct kvm *kvm, unsigned long hva)
-{
-       unsigned long end = hva + PAGE_SIZE;
-
-       handle_hva_to_gpa(kvm, hva, end, &kvm_unmap_hva_handler, NULL);
-
-       kvm_mips_callbacks->flush_shadow_all(kvm);
-       return 0;
-}
-
 int kvm_unmap_hva_range(struct kvm *kvm, unsigned long start, unsigned long end)
 {
        handle_hva_to_gpa(kvm, start, end, &kvm_unmap_hva_handler, NULL);

diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h
index 00ddb0c9e612a6e084298ef0f7372b924b76ba12..e6a33420b8712e8d98d01e7c67383d8a8ce2b3df 100644 (file)
--- a/arch/x86/include/asm/kvm_host.h
+++ b/arch/x86/include/asm/kvm_host.h
@@ -1450,7 +1450,6 @@ asmlinkage void kvm_spurious_fault(void);
        ____kvm_handle_fault_on_reboot(insn, "")
 
 #define KVM_ARCH_WANT_MMU_NOTIFIER
-int kvm_unmap_hva(struct kvm *kvm, unsigned long hva);
 int kvm_unmap_hva_range(struct kvm *kvm, unsigned long start, unsigned long end);
 int kvm_age_hva(struct kvm *kvm, unsigned long start, unsigned long end);
 int kvm_test_age_hva(struct kvm *kvm, unsigned long hva);

diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c
index a282321329b51a10e7563b0d422bd9e38d57b530..d440154e8938ccf9dfb8c6749475cea4085d199a 100644 (file)
--- a/arch/x86/kvm/mmu.c
+++ b/arch/x86/kvm/mmu.c
@@ -1853,11 +1853,6 @@ static int kvm_handle_hva(struct kvm *kvm, unsigned long hva,
        return kvm_handle_hva_range(kvm, hva, hva + 1, data, handler);
 }
 
-int kvm_unmap_hva(struct kvm *kvm, unsigned long hva)
-{
-       return kvm_handle_hva(kvm, hva, 0, kvm_unmap_rmapp);
-}
-
 int kvm_unmap_hva_range(struct kvm *kvm, unsigned long start, unsigned long end)
 {
        return kvm_handle_hva_range(kvm, start, end, 0, kvm_unmap_rmapp);

diff --git a/virt/kvm/arm/mmu.c b/virt/kvm/arm/mmu.c
index 111a660be3bee16986feb6d97a04743578ef8c39..ed162a6c57c597d89a7f08600b84a4425feb0b13 100644 (file)
--- a/virt/kvm/arm/mmu.c
+++ b/virt/kvm/arm/mmu.c
@@ -1817,18 +1817,6 @@ static int kvm_unmap_hva_handler(struct kvm *kvm, gpa_t gpa, u64 size, void *dat
        return 0;
 }
 
-int kvm_unmap_hva(struct kvm *kvm, unsigned long hva)
-{
-       unsigned long end = hva + PAGE_SIZE;
-
-       if (!kvm->arch.pgd)
-               return 0;
-
-       trace_kvm_unmap_hva(hva);
-       handle_hva_to_gpa(kvm, hva, end, &kvm_unmap_hva_handler, NULL);
-       return 0;
-}
-
 int kvm_unmap_hva_range(struct kvm *kvm,
                        unsigned long start, unsigned long end)
 {

diff --git a/virt/kvm/arm/trace.h b/virt/kvm/arm/trace.h
index e53b596f483b99f0a7f9d897938b30f47a079316..57b3edebbb4043e7cbeef0f834ccc2a1848caf78 100644 (file)
--- a/virt/kvm/arm/trace.h
+++ b/virt/kvm/arm/trace.h
@@ -134,21 +134,6 @@ TRACE_EVENT(kvm_mmio_emulate,
                  __entry->vcpu_pc, __entry->instr, __entry->cpsr)
 );
 
-TRACE_EVENT(kvm_unmap_hva,
-       TP_PROTO(unsigned long hva),
-       TP_ARGS(hva),
-
-       TP_STRUCT__entry(
-               __field(        unsigned long,  hva             )
-       ),
-
-       TP_fast_assign(
-               __entry->hva            = hva;
-       ),
-
-       TP_printk("mmu notifier unmap hva: %#08lx", __entry->hva)
-);
-
 TRACE_EVENT(kvm_unmap_hva_range,
        TP_PROTO(unsigned long start, unsigned long end),
        TP_ARGS(start, end),