Re: [Xen-devel] xsave=0 workaround needed on 3.2 kernels with Xen 4.1 or Xen-unstable.

["Jan Beulich" <JBeulich@xxxxxxxx>]

>>> On 30.04.12 at 21:37, Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx> wrote:
> I somehow thought that this has been fixed but I've been
> getting reports that people are running into this.

"this" being what? I too thought that all xsave related issues were
sorted out by now.

Jan

> What kind of fix do I need the in the kernel? I see this:
>  255         xen_cpuid(&ax, &bx, &cx, &dx);
>  256 
>  257         xsave_mask =
>  258                 (1 << (X86_FEATURE_XSAVE % 32)) |
>  259                 (1 << (X86_FEATURE_OSXSAVE % 32));
>  260 
>  261         /* Xen will set CR4.OSXSAVE if supported and not disabled by 
> force */
>  262         if ((cx & xsave_mask) != xsave_mask)
>  263                 cpuid_leaf1_ecx_mask &= ~xsave_mask; /* disable XSAVE & 
> OSXSAVE */
>  264 }
> 
> But do I need some other one?




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