diff options
Diffstat (limited to 'hw/i386/x86.c')
| -rw-r--r-- | hw/i386/x86.c | 15 |
1 files changed, 12 insertions, 3 deletions
diff --git a/hw/i386/x86.c b/hw/i386/x86.c index b3d054889b..2b6291ad8d 100644 --- a/hw/i386/x86.c +++ b/hw/i386/x86.c @@ -131,8 +131,12 @@ void x86_cpus_init(X86MachineState *x86ms, int default_cpu_version) /* * Can we support APIC ID 255 or higher? With KVM, that requires * both in-kernel lapic and X2APIC userspace API. + * + * kvm_enabled() must go first to ensure that kvm_* references are + * not emitted for the linker to consume (kvm_enabled() is + * a literal `0` in configurations where kvm_* aren't defined) */ - if (x86ms->apic_id_limit > 255 && kvm_enabled() && + if (kvm_enabled() && x86ms->apic_id_limit > 255 && (!kvm_irqchip_in_kernel() || !kvm_enable_x2apic())) { error_report("current -smp configuration requires kernel " "irqchip and X2APIC API support."); @@ -418,8 +422,13 @@ void x86_cpu_pre_plug(HotplugHandler *hotplug_dev, } cpu->thread_id = topo_ids.smt_id; - if (hyperv_feat_enabled(cpu, HYPERV_FEAT_VPINDEX) && - kvm_enabled() && !kvm_hv_vpindex_settable()) { + /* + * kvm_enabled() must go first to ensure that kvm_* references are + * not emitted for the linker to consume (kvm_enabled() is + * a literal `0` in configurations where kvm_* aren't defined) + */ + if (kvm_enabled() && hyperv_feat_enabled(cpu, HYPERV_FEAT_VPINDEX) && + !kvm_hv_vpindex_settable()) { error_setg(errp, "kernel doesn't allow setting HyperV VP_INDEX"); return; } |