linux-kernel - Re: [PATCH v2 00/13] KVM: x86: break the xAPIC barrier

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Date:	Fri, 8 Jul 2016 18:30:07 +0200
From:	Paolo Bonzini <pbonzini@...hat.com>
To:	Radim Krčmář <rkrcmar@...hat.com>,
	linux-kernel@...r.kernel.org, kvm@...r.kernel.org
Cc:	"Lan, Tianyu" <tianyu.lan@...el.com>,
	Igor Mammedov <imammedo@...hat.com>,
	Jan Kiszka <jan.kiszka@....de>, Peter Xu <peterx@...hat.com>
Subject: Re: [PATCH v2 00/13] KVM: x86: break the xAPIC barrier



On 08/07/2016 18:29, Radim Krčmář wrote:
> NACK, sorry.
> 
> KVM allows x2APIC even without interrupt remapping and therefore
> interprets IOAPIC destination 0xff as a broadcast, which causes a bug
> when x2APIC uses 0xff.
> 
> I'll fix that in v3.  The hack will be disabled when x2apic_api
> capability is enabled.

Right, I was going to suggest the same.  It's fine, just provide
patch(es) on top and I can squash them.

Paolo