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Re: [Qemu-devel] [PATCH] Reinstate cpuid vendor override when kvm is ena
From: |
Jamie Lokier |
Subject: |
Re: [Qemu-devel] [PATCH] Reinstate cpuid vendor override when kvm is enabled |
Date: |
Tue, 29 Dec 2009 13:28:41 +0000 |
User-agent: |
Mutt/1.5.13 (2006-08-11) |
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