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KVM: selftests: Avoid memory allocations when adding vCPU in get-reg-list

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Open code adding and doing setup for a vCPU in get-reg-list in order to
avoid the stack allocation that comes with aarch64_vcpu_add_default().
get-reg-list doesn't need to run the vCPU, and so doesn't need the guest
to be backed with memory.  This will allow future cleanup to turn what is
current vm_create() into a barebones helper.

Signed-off-by: Sean Christopherson <seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Sean Christopherson 2022-06-09 10:19:01 -07:00 committed by Paolo Bonzini
parent 47b1e0ec2e
commit eb0adbc03a
1 changed files with 2 additions and 1 deletions
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3
tools/testing/selftests/kvm/aarch64/get-reg-list.c
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@ -418,7 +418,8 @@ static void run_test(struct vcpu_config *c)
vm = vm_create(DEFAULT_GUEST_PHY_PAGES);
prepare_vcpu_init(c, &init);
aarch64_vcpu_add_default(vm, 0, &init, NULL);
vm_vcpu_add(vm, 0);
aarch64_vcpu_setup(vm, 0, &init);
finalize_vcpu(vm, 0, c);
reg_list = vcpu_get_reg_list(vm, 0);