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Commit 235539b4 authored Sep 07, 2016 by Luiz Capitulino Committed by Paolo Bonzini Sep 16, 2016

kvm: add stubs for arch specific debugfs support



Two stubs are added:

 o kvm_arch_has_vcpu_debugfs(): must return true if the arch
   supports creating debugfs entries in the vcpu debugfs dir
   (which will be implemented by the next commit)

 o kvm_arch_create_vcpu_debugfs(): code that creates debugfs
   entries in the vcpu debugfs dir

For x86, this commit introduces a new file to avoid growing
arch/x86/kvm/x86.c even more.

Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

parent 9d5a1dce

arch/arm/kvm/arm.c

+10 −0

Original line number	Diff line number	Diff line
		@@ -144,6 +144,16 @@ int kvm_arch_init_vm(struct kvm *kvm, unsigned long type)
		return ret;
		}

		bool kvm_arch_has_vcpu_debugfs(void)
		{
		return false;
		}

		int kvm_arch_create_vcpu_debugfs(struct kvm_vcpu *vcpu)
		{
		return 0;
		}

		int kvm_arch_vcpu_fault(struct kvm_vcpu vcpu, struct vm_fault vmf)
		{
		return VM_FAULT_SIGBUS;

arch/mips/kvm/mips.c

+10 −0

Original line number	Diff line number	Diff line
		@@ -140,6 +140,16 @@ int kvm_arch_init_vm(struct kvm *kvm, unsigned long type)
		return 0;
		}

		bool kvm_arch_has_vcpu_debugfs(void)
		{
		return false;
		}

		int kvm_arch_create_vcpu_debugfs(struct kvm_vcpu *vcpu)
		{
		return 0;
		}

		void kvm_mips_free_vcpus(struct kvm *kvm)
		{
		unsigned int i;

arch/powerpc/kvm/powerpc.c

+10 −0

Original line number	Diff line number	Diff line
		@@ -438,6 +438,16 @@ int kvm_arch_init_vm(struct kvm *kvm, unsigned long type)
		return -EINVAL;
		}

		bool kvm_arch_has_vcpu_debugfs(void)
		{
		return false;
		}

		int kvm_arch_create_vcpu_debugfs(struct kvm_vcpu *vcpu)
		{
		return 0;
		}

		void kvm_arch_destroy_vm(struct kvm *kvm)
		{
		unsigned int i;

arch/s390/kvm/kvm-s390.c

+10 −0

Original line number	Diff line number	Diff line
		@@ -1489,6 +1489,16 @@ int kvm_arch_init_vm(struct kvm *kvm, unsigned long type)
		return rc;
		}

		bool kvm_arch_has_vcpu_debugfs(void)
		{
		return false;
		}

		int kvm_arch_create_vcpu_debugfs(struct kvm_vcpu *vcpu)
		{
		return 0;
		}

		void kvm_arch_vcpu_destroy(struct kvm_vcpu *vcpu)
		{
		VCPU_EVENT(vcpu, 3, "%s", "free cpu");

arch/x86/kvm/Makefile

+1 −1

Original line number	Diff line number	Diff line
		@@ -13,7 +13,7 @@ kvm-$(CONFIG_KVM_ASYNC_PF) += $(KVM)/async_pf.o

		kvm-y += x86.o mmu.o emulate.o i8259.o irq.o lapic.o \
		i8254.o ioapic.o irq_comm.o cpuid.o pmu.o mtrr.o \
		hyperv.o page_track.o
		hyperv.o page_track.o debugfs.o

		kvm-$(CONFIG_KVM_DEVICE_ASSIGNMENT) += assigned-dev.o iommu.o