[Qemu-devel] [PATCH] add 'monitor' and 'mwait' instruction (update)

[Joachim Henke]

The last patch I sent, enabled the MONITOR cpuid flag for testing  
purposes. So Linux guests won't execute the 'hlt' instruction  
anymore. Since we don't really emulate an 'mwait' instruction, this  
leads to high cpu usage on the host, even when the guest cpu is idle.

Please use the updated patch below.


Sorry,
Jo.


Joachim Henke wrote:
> Could you please check, if the attached patch works for you? A  
> quick test showed that Linux boots fine with the MONITOR flag set now.
>
> This patch adds 'monitor' and 'mwait' as nops, as suggested by  
> Fabrice.

--
Joachim Henke
http://he-jo.net/

mwait.diff.gz
Description: GNU Zip compressed data