From: Peter Xu <peterx@redhat.com>
To: Jintack Lim <jintack@cs.columbia.edu>
Cc: QEMU Devel Mailing List <qemu-devel@nongnu.org>
Subject: Re: [Qemu-devel] Virtual IOMMU is working for Windows VM?
Date: Mon, 22 Oct 2018 10:27:10 +0100 [thread overview]
Message-ID: <20181022092710.GH32717@xz-x1> (raw)
In-Reply-To: <CAHyh4xiVxNOxwWeKDw2ccAURx3zRMTd+nVLD=oav6ShqCBdjXw@mail.gmail.com>
On Mon, Oct 22, 2018 at 12:22:02AM -0400, Jintack Lim wrote:
> Hi,
>
> I wonder if vIOMMU is working for Windows VM?
>
> I tried it with v2.11.0, but it didn't seem to work. I assume that seaBIOS
> sets IOMMU on by default as is the case when I launched a Linux VM. But I
> might be missing something. Can somebody shed some light on it?
Hi, Jintack,
I think at least the latest QEMU should work for Windows, but I don't
really run Windows that frequently.
What is the error you've encountered? Have you tried the latest QEMU,
or switching Windows versions to try?
What I can remember about Windows is that Ladi had fixed a bug for
windows-only (8991c460be, "intel_iommu: relax iq tail check on
VTD_GCMD_QIE enable", 2017-07-03) but it should be even in 2.10 so I
guess it's not the problem you've encountered.
Regards,
--
Peter Xu
next prev parent reply other threads:[~2018-10-22 9:27 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-10-22 4:22 [Qemu-devel] Virtual IOMMU is working for Windows VM? Jintack Lim
2018-10-22 9:27 ` Peter Xu [this message]
2018-10-22 14:43 ` Jintack Lim
2018-10-23 13:25 ` Peter Xu
2018-10-23 14:06 ` Jintack Lim
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