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| author | Sean Christopherson <sean.j.christopherson@intel.com> | 2019-12-19 00:54:57 +0300 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2020-01-24 11:18:59 +0300 |
| commit | c50bfbdc38ec56cf8e53afb4f9ebb600dfcabd49 (patch) | |
| tree | 1d517af077dbc9c6a067d73a83998b330fdd0b51 /arch/powerpc/kvm/powerpc.c | |
| parent | 3ec8ca29647078db11a820ab22855dd64d9a4897 (diff) | |
| download | linux-c50bfbdc38ec56cf8e53afb4f9ebb600dfcabd49.tar.xz | |
KVM: PPC: Allocate vcpu struct in common PPC code
Move allocation of all flavors of PPC vCPUs to common PPC code. All
variants either allocate 'struct kvm_vcpu' directly, or require that
the embedded 'struct kvm_vcpu' member be located at offset 0, i.e.
guarantee that the allocation can be directly interpreted as a 'struct
kvm_vcpu' object.
Remove the message from the build-time assertion regarding placement of
the struct, as compatibility with the arch usercopy region is no longer
the sole dependent on 'struct kvm_vcpu' being at offset zero.
Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'arch/powerpc/kvm/powerpc.c')
| -rw-r--r-- | arch/powerpc/kvm/powerpc.c | 23 |
1 files changed, 18 insertions, 5 deletions
diff --git a/arch/powerpc/kvm/powerpc.c b/arch/powerpc/kvm/powerpc.c index 416fb3d2a1d0..fd978f681b66 100644 --- a/arch/powerpc/kvm/powerpc.c +++ b/arch/powerpc/kvm/powerpc.c @@ -723,12 +723,23 @@ void kvm_arch_flush_shadow_memslot(struct kvm *kvm, struct kvm_vcpu *kvm_arch_vcpu_create(struct kvm *kvm, unsigned int id) { struct kvm_vcpu *vcpu; - vcpu = kvmppc_core_vcpu_create(kvm, id); - if (!IS_ERR(vcpu)) { - vcpu->arch.wqp = &vcpu->wq; - kvmppc_create_vcpu_debugfs(vcpu, id); - } + int err; + + vcpu = kmem_cache_zalloc(kvm_vcpu_cache, GFP_KERNEL); + if (!vcpu) + return ERR_PTR(-ENOMEM); + + err = kvmppc_core_vcpu_create(kvm, vcpu, id); + if (err) + goto free_vcpu; + + vcpu->arch.wqp = &vcpu->wq; + kvmppc_create_vcpu_debugfs(vcpu, id); return vcpu; + +free_vcpu: + kmem_cache_free(kvm_vcpu_cache, vcpu); + return ERR_PTR(err); } void kvm_arch_vcpu_postcreate(struct kvm_vcpu *vcpu) @@ -758,6 +769,8 @@ void kvm_arch_vcpu_free(struct kvm_vcpu *vcpu) } kvmppc_core_vcpu_free(vcpu); + + kmem_cache_free(kvm_vcpu_cache, vcpu); } void kvm_arch_vcpu_destroy(struct kvm_vcpu *vcpu) |