diff options
author | Luiz Capitulino <lcapitulino@redhat.com> | 2016-09-07 14:47:23 -0400 |
---|---|---|
committer | Paolo Bonzini <pbonzini@redhat.com> | 2016-09-16 16:57:47 +0200 |
commit | 235539b48a2357da28f52d66d04bec04f3dcb9dd (patch) | |
tree | b531cda00146261ebc19ff89edbb2e5753c0c5c1 /arch | |
parent | 9d5a1dcebfbe0e421412fcf5ab86d30e2e65bab4 (diff) | |
download | linux-235539b48a2357da28f52d66d04bec04f3dcb9dd.tar.bz2 |
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>
Diffstat (limited to 'arch')
-rw-r--r-- | arch/arm/kvm/arm.c | 10 | ||||
-rw-r--r-- | arch/mips/kvm/mips.c | 10 | ||||
-rw-r--r-- | arch/powerpc/kvm/powerpc.c | 10 | ||||
-rw-r--r-- | arch/s390/kvm/kvm-s390.c | 10 | ||||
-rw-r--r-- | arch/x86/kvm/Makefile | 2 | ||||
-rw-r--r-- | arch/x86/kvm/debugfs.c | 20 |
6 files changed, 61 insertions, 1 deletions
diff --git a/arch/arm/kvm/arm.c b/arch/arm/kvm/arm.c index 75f130ef6504..c638935baad6 100644 --- a/arch/arm/kvm/arm.c +++ b/arch/arm/kvm/arm.c @@ -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; diff --git a/arch/mips/kvm/mips.c b/arch/mips/kvm/mips.c index a6ea084b4d9d..49b25e74d0c7 100644 --- a/arch/mips/kvm/mips.c +++ b/arch/mips/kvm/mips.c @@ -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; diff --git a/arch/powerpc/kvm/powerpc.c b/arch/powerpc/kvm/powerpc.c index 0b7d66422650..70963c845e96 100644 --- a/arch/powerpc/kvm/powerpc.c +++ b/arch/powerpc/kvm/powerpc.c @@ -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; diff --git a/arch/s390/kvm/kvm-s390.c b/arch/s390/kvm/kvm-s390.c index ac6c056df4b9..0a9ce9dd7825 100644 --- a/arch/s390/kvm/kvm-s390.c +++ b/arch/s390/kvm/kvm-s390.c @@ -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"); diff --git a/arch/x86/kvm/Makefile b/arch/x86/kvm/Makefile index 464fa477afbf..3bff20710471 100644 --- a/arch/x86/kvm/Makefile +++ b/arch/x86/kvm/Makefile @@ -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 diff --git a/arch/x86/kvm/debugfs.c b/arch/x86/kvm/debugfs.c new file mode 100644 index 000000000000..bb5e9f635dde --- /dev/null +++ b/arch/x86/kvm/debugfs.c @@ -0,0 +1,20 @@ +/* + * Kernel-based Virtual Machine driver for Linux + * + * Copyright 2016 Red Hat, Inc. and/or its affiliates. + * + * This work is licensed under the terms of the GNU GPL, version 2. See + * the COPYING file in the top-level directory. + * + */ +#include <linux/kvm_host.h> + +bool kvm_arch_has_vcpu_debugfs(void) +{ + return false; +} + +int kvm_arch_create_vcpu_debugfs(struct kvm_vcpu *vcpu) +{ + return 0; +} |