From mboxrd@z Thu Jan 1 00:00:00 1970 From: Alexander Graf Date: Mon, 08 Mar 2010 13:55:31 +0000 Subject: Re: [PATCH 03/15] KVM: PPC: Allow userspace to unset the IRQ line Message-Id: <4B9501D3.80406@suse.de> List-Id: References: <1267807842-3751-1-git-send-email-agraf@suse.de> <1267807842-3751-4-git-send-email-agraf@suse.de> <4B94FF27.5010800@redhat.com> <4B950017.9010805@suse.de> <4B950104.3030107@redhat.com> In-Reply-To: <4B950104.3030107@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: Avi Kivity Cc: kvm-ppc@vger.kernel.org, kvm@vger.kernel.org Avi Kivity wrote: > On 03/08/2010 03:48 PM, Alexander Graf wrote: >> >> >>> How does userspace know they exist? >>> >> #ifdef KVM_INTERRUPT_SET? MOL is the only user of this so far. And that >> won't work without the hypervisor call anyways. >> > > We generally compile on one machine, and run on another. So? Then IRQ unsetting doesn't work. Without this series you won't get much further than booting the kernel anyways because XER is broken, TLB flushes are broken and FPU loading is broken. So not being able to unset an IRQ line is the least of your problems :). Alex