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From: Jamie Lokier <jamie@shareable.org>
To: Avi Kivity <avi@redhat.com>
Cc: Marcelo Tosatti <mtosatti@redhat.com>,
	qemu-devel@nongnu.org, kvm@vger.kernel.org
Subject: Re: [Qemu-devel] [PATCH] Reinstate cpuid vendor override when kvm is enabled
Date: Tue, 29 Dec 2009 13:28:41 +0000	[thread overview]
Message-ID: <20091229132841.GC5736@shareable.org> (raw)
In-Reply-To: <1261990080-15330-1-git-send-email-avi@redhat.com>

Avi Kivity wrote:
> Due to upstream qemu changes we no longer expose the host cpu vendor id
> to the guest.  This leads to failures when the syscall/sysenter instructions
> are used in compatibility mode.
> 
> Change the default to override when kvm is enabled.

This is a good change, although it always bothers me when there has to
be a difference between kvm-enabled and kvm-disabled, because I run
some guests in both modes at different times.

Out of interest, are the guest-visible differences between kvm-enabled
mode and kvm-disabled mode documented somewhere?

Thanks,
-- Jamie

      parent reply	other threads:[~2009-12-29 13:28 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-12-28  8:48 [PATCH] Reinstate cpuid vendor override when kvm is enabled Avi Kivity
2009-12-28 20:47 ` Marcelo Tosatti
2009-12-29 13:28 ` Jamie Lokier [this message]

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