linux-kernel - Re: [PATCH v9 12/18] vfio: Register/unregister irq_bypass

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <55FFCE9F.5090001@redhat.com>
Date:	Mon, 21 Sep 2015 11:32:15 +0200
From:	Paolo Bonzini <pbonzini@...hat.com>
To:	"Wu, Feng" <feng.wu@...el.com>,
	"alex.williamson@...hat.com" <alex.williamson@...hat.com>,
	"joro@...tes.org" <joro@...tes.org>,
	"mtosatti@...hat.com" <mtosatti@...hat.com>
Cc:	"eric.auger@...aro.org" <eric.auger@...aro.org>,
	"kvm@...r.kernel.org" <kvm@...r.kernel.org>,
	"iommu@...ts.linux-foundation.org" <iommu@...ts.linux-foundation.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v9 12/18] vfio: Register/unregister irq_bypass_producer



On 21/09/2015 10:56, Wu, Feng wrote:
> Hi Paolo & Alex,
> 
> I find that there is a build error in the following two cases:
> - KVM is configured as 'M' and VFIO as 'Y'
> The reason is the build of irqbypass manager is triggered in
> arch/x86/kvm/Makefile, and VFIO is built before KVM, hence
> it cannot find the symbols in irqbypass manager.
> 
> - Disable KVM and enable VFIO in .config
> The reason is similar with the above one, the irqbypass manager
> is not built since KVM is not configured.
> 
> I think the point is that we cannot trigger the build of irqbypass
> manager inside KVM or VFIO, we need trigger the build at a high
> level and it should be built before VFIO and KVM. Any ideas?

We can add virt/Makefile and build virt/lib/ directly, not through
arch/x86/kvm.

Paolo
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/