Commit 235539b4 authored by Luiz Capitulino's avatar Luiz Capitulino Committed by Paolo Bonzini
Browse files

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: default avatarLuiz Capitulino <lcapitulino@redhat.com>
Signed-off-by: default avatarPaolo 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 @@ out_fail_alloc: 
	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 @@ err_out: 
	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 @@ out_err: 
	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

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