diff options
Diffstat (limited to 'arch/arm64/kvm/nested.c')
| -rw-r--r-- | arch/arm64/kvm/nested.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/arch/arm64/kvm/nested.c b/arch/arm64/kvm/nested.c index 4a3fc11f7ecf..0513f1367219 100644 --- a/arch/arm64/kvm/nested.c +++ b/arch/arm64/kvm/nested.c @@ -55,6 +55,13 @@ int kvm_vcpu_init_nested(struct kvm_vcpu *vcpu) !cpus_have_final_cap(ARM64_HAS_HCR_NV1)) return -EINVAL; + if (!vcpu->arch.ctxt.vncr_array) + vcpu->arch.ctxt.vncr_array = (u64 *)__get_free_page(GFP_KERNEL_ACCOUNT | + __GFP_ZERO); + + if (!vcpu->arch.ctxt.vncr_array) + return -ENOMEM; + /* * Let's treat memory allocation failures as benign: If we fail to * allocate anything, return an error and keep the allocated array @@ -85,6 +92,9 @@ int kvm_vcpu_init_nested(struct kvm_vcpu *vcpu) for (int i = kvm->arch.nested_mmus_size; i < num_mmus; i++) kvm_free_stage2_pgd(&kvm->arch.nested_mmus[i]); + free_page((unsigned long)vcpu->arch.ctxt.vncr_array); + vcpu->arch.ctxt.vncr_array = NULL; + return ret; } |