[PATCH 29/45] KVM: Introduce kvm_vcpu_destroy()
From: Sean Christopherson <hidden>
Date: 2019-10-22 02:00:44
Also in:
kvm, kvmarm, linux-mips, lkml
Subsystem:
kernel virtual machine (kvm), kernel virtual machine for mips (kvm/mips), kernel virtual machine for powerpc (kvm/powerpc), kernel virtual machine for x86 (kvm/x86), kernel virtual machine for s390 (kvm/s390), linux for powerpc (32-bit and 64-bit), mips, s390 architecture, the rest, x86 architecture (32-bit and 64-bit) · Maintainers:
Paolo Bonzini, Huacai Chen, Madhavan Srinivasan, Sean Christopherson, Christian Borntraeger, Janosch Frank, Claudio Imbrenda, Thomas Bogendoerfer, Heiko Carstens, Vasily Gorbik, Alexander Gordeev, Linus Torvalds, Thomas Gleixner, Ingo Molnar, Borislav Petkov, Dave Hansen
Add kvm_vcpu_destroy() and wire up all architectures to call the common function instead of their arch specific implementation. The common destruction function will be used by future patches to move allocation and initialization of vCPUs to common KVM code, i.e. to free resources that are allocated by arch agnostic code. No functional change intended. Signed-off-by: Sean Christopherson <redacted> --- arch/mips/kvm/mips.c | 2 +- arch/powerpc/kvm/powerpc.c | 2 +- arch/s390/kvm/kvm-s390.c | 2 +- arch/x86/kvm/x86.c | 2 +- include/linux/kvm_host.h | 1 + virt/kvm/arm/arm.c | 2 +- virt/kvm/kvm_main.c | 6 ++++++ 7 files changed, 12 insertions(+), 5 deletions(-)
diff --git a/arch/mips/kvm/mips.c b/arch/mips/kvm/mips.c
index 73360e021259..8546bc6e09e7 100644
--- a/arch/mips/kvm/mips.c
+++ b/arch/mips/kvm/mips.c@@ -156,7 +156,7 @@ void kvm_mips_free_vcpus(struct kvm *kvm) struct kvm_vcpu *vcpu; kvm_for_each_vcpu(i, vcpu, kvm) { - kvm_arch_vcpu_destroy(vcpu); + kvm_vcpu_destroy(vcpu); } mutex_lock(&kvm->lock);
diff --git a/arch/powerpc/kvm/powerpc.c b/arch/powerpc/kvm/powerpc.c
index fa9ed239c546..69a1a1c36909 100644
--- a/arch/powerpc/kvm/powerpc.c
+++ b/arch/powerpc/kvm/powerpc.c@@ -473,7 +473,7 @@ void kvm_arch_destroy_vm(struct kvm *kvm) #endif kvm_for_each_vcpu(i, vcpu, kvm) - kvm_arch_vcpu_destroy(vcpu); + kvm_vcpu_destroy(vcpu); mutex_lock(&kvm->lock); for (i = 0; i < atomic_read(&kvm->online_vcpus); i++)
diff --git a/arch/s390/kvm/kvm-s390.c b/arch/s390/kvm/kvm-s390.c
index 9289ed10561b..2c965f11c276 100644
--- a/arch/s390/kvm/kvm-s390.c
+++ b/arch/s390/kvm/kvm-s390.c@@ -2544,7 +2544,7 @@ static void kvm_free_vcpus(struct kvm *kvm) struct kvm_vcpu *vcpu; kvm_for_each_vcpu(i, vcpu, kvm) - kvm_arch_vcpu_destroy(vcpu); + kvm_vcpu_destroy(vcpu); mutex_lock(&kvm->lock); for (i = 0; i < atomic_read(&kvm->online_vcpus); i++)
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index 9fdfc20f0cc2..c72b104deaca 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c@@ -9496,7 +9496,7 @@ static void kvm_free_vcpus(struct kvm *kvm) kvm_unload_vcpu_mmu(vcpu); } kvm_for_each_vcpu(i, vcpu, kvm) - kvm_arch_vcpu_destroy(vcpu); + kvm_vcpu_destroy(vcpu); mutex_lock(&kvm->lock); for (i = 0; i < atomic_read(&kvm->online_vcpus); i++)
diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h
index 8bc03884cf5c..f38d75f60c8c 100644
--- a/include/linux/kvm_host.h
+++ b/include/linux/kvm_host.h@@ -587,6 +587,7 @@ static inline int kvm_vcpu_get_idx(struct kvm_vcpu *vcpu) int kvm_vcpu_init(struct kvm_vcpu *vcpu, struct kvm *kvm, unsigned id); void kvm_vcpu_uninit(struct kvm_vcpu *vcpu); +void kvm_vcpu_destroy(struct kvm_vcpu *vcpu); void vcpu_load(struct kvm_vcpu *vcpu); void vcpu_put(struct kvm_vcpu *vcpu);
diff --git a/virt/kvm/arm/arm.c b/virt/kvm/arm/arm.c
index 03f6eec1841c..deb8a540538f 100644
--- a/virt/kvm/arm/arm.c
+++ b/virt/kvm/arm/arm.c@@ -170,7 +170,7 @@ void kvm_arch_destroy_vm(struct kvm *kvm) for (i = 0; i < KVM_MAX_VCPUS; ++i) { if (kvm->vcpus[i]) { - kvm_arch_vcpu_destroy(kvm->vcpus[i]); + kvm_vcpu_destroy(kvm->vcpus[i]); kvm->vcpus[i] = NULL; } }
diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c
index 9c6791ad71e5..dc6c721348dd 100644
--- a/virt/kvm/kvm_main.c
+++ b/virt/kvm/kvm_main.c@@ -341,6 +341,12 @@ void kvm_vcpu_uninit(struct kvm_vcpu *vcpu) } EXPORT_SYMBOL_GPL(kvm_vcpu_uninit); +void kvm_vcpu_destroy(struct kvm_vcpu *vcpu) +{ + kvm_arch_vcpu_destroy(vcpu); +} +EXPORT_SYMBOL_GPL(kvm_vcpu_destroy); + #if defined(CONFIG_MMU_NOTIFIER) && defined(KVM_ARCH_WANT_MMU_NOTIFIER) static inline struct kvm *mmu_notifier_to_kvm(struct mmu_notifier *mn) {
--
2.22.0
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