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kvm/hyperv: add synic feature to CPU only if its not enabled

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We need to make sure that synic CPU feature is not already enabled. If it is,
trying to enable it again will result in the following assertion:

Unexpected error in object_property_try_add() at ../qom/object.c:1268:
qemu-system-x86_64: attempt to add duplicate property 'synic' to object (type 'host-x86_64-cpu')

So enable synic only if its not enabled already.

Signed-off-by: Ani Sinha <anisinha@redhat.com>
Link: https://lore.kernel.org/r/20260225035000.385950-27-anisinha@redhat.com
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Ani Sinha
2026-02-25 09:19:31 +05:30
committed by Paolo Bonzini
parent 06fd6ae044
commit c4cf32fc63
1 changed files with 1 additions and 1 deletions
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2
target/i386/kvm/kvm.c
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@@ -1761,7 +1761,7 @@ static int hyperv_init_vcpu(X86CPU *cpu)
return ret;
}
if (!cpu->hyperv_synic_kvm_only) {
if (!cpu->hyperv_synic_kvm_only && !hyperv_is_synic_enabled()) {
ret = hyperv_x86_synic_add(cpu);
if (ret < 0) {
error_report("failed to create HyperV SynIC: %s",