Re: [RFC PATCH] Emulate MOVBE

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On Wed, Apr 10, 2013 at 01:08:46PM +0300, Gleb Natapov wrote:
> We can add the emulation, but we should not start announcing the
> instruction availability to a guest if host cpu does not have it
> by default. This may trick a guest into thinking that movbe is the
> fastest way to do something when it is not.

That could be a problem because kernels compiled for atom look at CPUID
to check for MOVBE support and refuse to continue if there's none.

-- 
Regards/Gruss,
    Boris.

Sent from a fat crate under my desk. Formatting is fine.
--
--
To unsubscribe from this list: send the line "unsubscribe kvm" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html




[Index of Archives]     [KVM ARM]     [KVM ia64]     [KVM ppc]     [Virtualization Tools]     [Spice Development]     [Libvirt]     [Libvirt Users]     [Linux USB Devel]     [Linux Audio Users]     [Yosemite Questions]     [Linux Kernel]     [Linux SCSI]     [XFree86]
  Powered by Linux