Subject: Re: [RFC/RFT PATCH v2 0/4] KVM: x86: full virtualization of guest
 MTRR
To: Joerg Roedel <jroedel@suse.de>
References: <1436276739-50326-1-git-send-email-pbonzini@redhat.com>
 <20150707140603.GK16233@suse.de>
Cc: linux-kernel@vger.kernel.org, kvm@vger.kernel.org,
        guangrong.xiao@linux.intel.com, alex.williamson@redhat.com,
        ogerlitz@mellanox.com, amirv@mellanox.com
From: Paolo Bonzini <pbonzini@redhat.com>
Message-ID: <559BDD83.5060008@redhat.com>
Date: Tue, 7 Jul 2015 16:09:07 +0200
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On 07/07/2015 16:06, Joerg Roedel wrote:
> > I do not have any AMD machines that support an IOMMU, so I would like
> > some help testing these patches.  Thanks,
>
> What kind of testing do you want? Booting a guest with a device attached
> is probably not sufficient, right?

The guest should not take ages to boot, which is typical of messed-up
MTRR/PAT.  And if you add some actual usage of the attached device, it
actually is sufficient.  Even a simple ping test, or typing through a
USB keyboard on a passed-through controller, is enough.

Paolo
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