Re: [kvm-devel] [PATCH] fixup 3dnow! support

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

 



On May 6, 2008, at 6:27 PM, Glauber Costa wrote:

> qemu recently added support for 3dnow instructions. Because of
> that, 3dnow will be featured among cpuid bits. But this will
> break kvm in cpus that don't have those instructions (which includes
> my laptop). So we fixup our cpuid before exposing it to the guest.

I actually don't see where the problem is here. As far as I read the  
code, the CPUID feature function gets received from the host CPU and  
bitwise ANDed with a bunch of features that are known to work. What's  
wrong with that approach?

But I'm pretty sure Dao can tell us a lot more about this. Has there  
been any progress in getting the new CPUID code in? I think I could  
review this sometime soon.

Alex
_______________________________________________
Virtualization mailing list
Virtualization@xxxxxxxxxxxxxxxxxxxxxxxxxx
https://lists.linux-foundation.org/mailman/listinfo/virtualization

[Index of Archives]     [KVM Development]     [Libvirt Development]     [Libvirt Users]     [CentOS Virtualization]     [Netdev]     [Ethernet Bridging]     [Linux Wireless]     [Kernel Newbies]     [Security]     [Linux for Hams]     [Netfilter]     [Bugtraq]     [Yosemite Forum]     [MIPS Linux]     [ARM Linux]     [Linux RAID]     [Linux Admin]     [Samba]

  Powered by Linux