Re: [Xen-devel] [PATCH v2 2/2] x86/hvm: Don't intercept #UD exceptions in general

[Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx>]

> diff --git a/xen/arch/x86/hvm/hvm.c b/xen/arch/x86/hvm/hvm.c
> index 674feea..7a15d49 100644
> --- a/xen/arch/x86/hvm/hvm.c
> +++ b/xen/arch/x86/hvm/hvm.c
> @@ -93,12 +93,10 @@ unsigned long __section(".bss.page_aligned")
>  static bool_t __initdata opt_hap_enabled = 1;
>  boolean_param("hap", opt_hap_enabled);
>  
> -#ifndef NDEBUG
> +#ifndef opt_hvm_fep
>  /* Permit use of the Forced Emulation Prefix in HVM guests */
> -static bool_t opt_hvm_fep;
> +bool_t opt_hvm_fep;
>  boolean_param("hvm_fep", opt_hvm_fep);

Since you remove the debug option you should probably also update the 
documentation which says: ">Recognized in debug builds of the hypervisor only."


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