(CCing libvir-list) On Sat, Feb 20, 2016 at 04:00:30AM -0500, Paolo Bonzini wrote: > ----- Original Message ----- > > From: "Jan Kiszka" <jan.kiszka@xxxxxx> > > To: "Eduardo Habkost" <ehabkost@xxxxxxxxxx>, "Paolo Bonzini" <pbonzini@xxxxxxxxxx> > > Cc: "qemu-devel" <qemu-devel@xxxxxxxxxx>, "kvm" <kvm@xxxxxxxxxxxxxxx> > > Sent: Saturday, February 20, 2016 9:09:32 AM > > Subject: kvm: "warning: host doesn't support requested feature: CPUID.01H:ECX.x2apic [bit 21]" > > > > Hi all, > > > > I suppose 5120901a37 introduced this: qemu with kernel_irqchip=off now > > generates these warnings, one per VCPU, during QEMU startup. Is the plan > > to live with them until we finally have x2APIC emulation in userspace > > (ie. also MSR vmexiting to there), or should we otherwise avoid it? > > I think it's a bug, x2apic should be auto-suppressed with kernel_irqchip=off. My first reaction is to dislike the idea of adding yet another variable that affects the results of CPU models. But considering that we are moving towards a design where libvirt must not assume or query any low-level detail from CPU models at all, maybe this won't be harmful. -- Eduardo -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
