From: Erik van der Kouwe <vdkouwe@cs.vu.nl>
To: Jamie Lokier <jamie@shareable.org>
Cc: "Roedel, Joerg" <Joerg.Roedel@amd.com>,
Jan Kiszka <jan.kiszka@web.de>,
"qemu-devel@nongnu.org" <qemu-devel@nongnu.org>,
Gleb Natapov <gleb@redhat.com>
Subject: Re: [Qemu-devel] Re: SVM emulation: EVENTINJ marked valid when a pagefault happens while issuing a software interrupt
Date: Fri, 28 May 2010 15:30:19 +0200 [thread overview]
Message-ID: <4BFFC56B.5010408@cs.vu.nl> (raw)
In-Reply-To: <20100528132031.GG31920@shareable.org>
Hi,
>> And the svm-emulation is only available on AMD hardware.
>
> I assume you mean nested SVM emulation in a KVM guest is only
> available on real AMD hardware?
>
> Is this due to something inherent, or just a limitation of the KVM
> code not handling all the necessary traps in kvm-intel?
I don't think you could hardware-emulate a CPU from a different brand.
AMD instructions would probably trap on Intel, but might also just do
something completely different without a #VMEXIT. Same problem would
exist vice versa.
Would be nice to have nested VMX support though, given that Intel CPUs
are so much more common than AMDs. I've been searching on the Dell
website (in the Netherlands) for a laptop recently and I couldn't find a
single AMD model.
With kind regards,
Erik
next prev parent reply other threads:[~2010-05-28 13:30 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-05-27 15:26 [Qemu-devel] SVM emulation: EVENTINJ marked valid when a pagefault happens while issuing a software interrupt Erik van der Kouwe
2010-05-27 18:53 ` [Qemu-devel] " Jan Kiszka
2010-05-27 19:49 ` Erik van der Kouwe
2010-05-27 22:20 ` Jan Kiszka
2010-05-28 5:13 ` Erik van der Kouwe
2010-05-28 6:10 ` Jan Kiszka
2010-05-28 7:35 ` Roedel, Joerg
2010-05-28 13:20 ` Jamie Lokier
2010-05-28 13:30 ` Erik van der Kouwe [this message]
2010-05-28 13:44 ` Roedel, Joerg
2010-05-28 13:52 ` Erik van der Kouwe
2010-05-28 13:32 ` Roedel, Joerg
2010-05-28 7:33 ` Roedel, Joerg
2010-05-28 7:47 ` Jan Kiszka
2010-05-28 7:24 ` Roedel, Joerg
2010-05-28 7:45 ` Erik van der Kouwe
2010-05-28 9:12 ` Roedel, Joerg
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