On 11/22/12 15:52, Martin Kletzander wrote:
On 11/22/2012 03:05 PM, Peter Krempa wrote:
> The new model supports following features in addition to those supported
> by SandyBridge:
>
> fma, movbe, fsgsbase, bmi1, hle, avx2, smep, bmi2, erms, invpcid, rtm
missing 'pcid' flag
Ah, yeah, thanks for pointing out.
> ---
> Based on:
https://lists.gnu.org/archive/html/qemu-devel/2012-11/msg01328.html
> ---
> src/cpu/cpu_map.xml | 16 ++++++++++++++++
> 1 file changed, 16 insertions(+)
>
> diff --git a/src/cpu/cpu_map.xml b/src/cpu/cpu_map.xml
> index 7ff91be..eb69a34 100644
> --- a/src/cpu/cpu_map.xml
> +++ b/src/cpu/cpu_map.xml
> @@ -495,6 +495,22 @@
> <feature name='rdtscp'/>
> </model>
>
> + <model name='Haswell'>
> + <model name='SandyBridge'/>
> + <feature name='fma'/>
> + <feature name='pcid'/>
> + <feature name='movbe'/>
> + <feature name='fsgsbase'/>
> + <feature name='bmi1'/>
> + <feature name='hle'/>
> + <feature name='avx2'/>
> + <feature name='smep'/>
> + <feature name='bmi2'/>
> + <feature name='erms'/>
> + <feature name='invpcid'/>
> + <feature name='rtm'/>
> + </model>
> +
> <!-- AMD CPUs -->
> <model name='athlon'>
> <model name='pentiumpro'/>
>
According to the qemu patch, the model should be only adding features,
but I see rdtscp disappeared between SandyBridge and Haswell. The
question is whether this is QEMU bug or not, do you have any info on
that? If not, maybe we should cross-post ask in qemu-devel.
We also include 'sep' and 'fpu' on top of these things, but I recall
some conversation about qemu dropping 'sep' from some models lately, but
I have no idea about 'fpu' flag handling there either.
Thanks for pointing that out on the qemu-devel list:
https://lists.gnu.org/archive/html/qemu-devel/2012-11/msg02400.html
Martin