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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/book3s_pr.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/book3s_pr.c')
| -rw-r--r-- | arch/powerpc/kvm/book3s_pr.c | 18 |
1 files changed, 5 insertions, 13 deletions
diff --git a/arch/powerpc/kvm/book3s_pr.c b/arch/powerpc/kvm/book3s_pr.c index 26ca62b6d773..0d7c8a7bcb7b 100644 --- a/arch/powerpc/kvm/book3s_pr.c +++ b/arch/powerpc/kvm/book3s_pr.c @@ -1744,21 +1744,16 @@ static int kvmppc_set_one_reg_pr(struct kvm_vcpu *vcpu, u64 id, return r; } -static struct kvm_vcpu *kvmppc_core_vcpu_create_pr(struct kvm *kvm, - unsigned int id) +static int kvmppc_core_vcpu_create_pr(struct kvm *kvm, struct kvm_vcpu *vcpu, + unsigned int id) { struct kvmppc_vcpu_book3s *vcpu_book3s; - struct kvm_vcpu *vcpu; int err = -ENOMEM; unsigned long p; - vcpu = kmem_cache_zalloc(kvm_vcpu_cache, GFP_KERNEL); - if (!vcpu) - goto out; - vcpu_book3s = vzalloc(sizeof(struct kvmppc_vcpu_book3s)); if (!vcpu_book3s) - goto free_vcpu; + goto out; vcpu->arch.book3s = vcpu_book3s; #ifdef CONFIG_KVM_BOOK3S_32_HANDLER @@ -1808,7 +1803,7 @@ static struct kvm_vcpu *kvmppc_core_vcpu_create_pr(struct kvm *kvm, if (err < 0) goto free_shared_page; - return vcpu; + return 0; free_shared_page: free_page((unsigned long)vcpu->arch.shared); @@ -1820,10 +1815,8 @@ free_shadow_vcpu: free_vcpu3s: #endif vfree(vcpu_book3s); -free_vcpu: - kmem_cache_free(kvm_vcpu_cache, vcpu); out: - return ERR_PTR(err); + return err; } static void kvmppc_core_vcpu_free_pr(struct kvm_vcpu *vcpu) @@ -1836,7 +1829,6 @@ static void kvmppc_core_vcpu_free_pr(struct kvm_vcpu *vcpu) kfree(vcpu->arch.shadow_vcpu); #endif vfree(vcpu_book3s); - kmem_cache_free(kvm_vcpu_cache, vcpu); } static int kvmppc_vcpu_run_pr(struct kvm_run *kvm_run, struct kvm_vcpu *vcpu) |