Re: [Xen-devel] [V2 PATCH 1/9] x86/hvm: pkeys, add pkeys support for cpuid handling

["Jan Beulich" <JBeulich@xxxxxxxx>]

>>> On 27.11.15 at 10:51, <huaitong.han@xxxxxxxxx> wrote:
> --- a/tools/libxc/xc_cpuid_x86.c
> +++ b/tools/libxc/xc_cpuid_x86.c
> @@ -421,9 +421,11 @@ static void xc_cpuid_hvm_policy(xc_interface *xch,
>                          bitmaskof(X86_FEATURE_ADX)  |
>                          bitmaskof(X86_FEATURE_SMAP) |
>                          bitmaskof(X86_FEATURE_FSGSBASE));
> +            regs[2] &= bitmaskof(X86_FEATURE_PKU);
>          } else
> -            regs[1] = 0;
> -        regs[0] = regs[2] = regs[3] = 0;
> +            regs[1] = regs[2] = 0;
> +
> +        regs[0] = regs[3] = 0;
>          break;

This is not a valid change until the hypervisor side implementation is
complete.

Also you should Cc tools maintainers on tools changes.

Jan


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