Re: [Xen-devel] [PATCH v3 3/3] tools: introduce parameter max_wp_ram_ranges.

["Jan Beulich" <JBeulich@xxxxxxxx>]

>>> On 29.01.16 at 11:45, <yu.c.zhang@xxxxxxxxxxxxxxx> wrote:
> --- a/xen/arch/x86/hvm/hvm.c
> +++ b/xen/arch/x86/hvm/hvm.c
> @@ -940,6 +940,8 @@ static int hvm_ioreq_server_alloc_rangesets(struct 
> hvm_ioreq_server *s,
>  {
>      unsigned int i;
>      int rc;
> +    unsigned int max_wp_ram_ranges =
> +        s->domain->arch.hvm_domain.params[HVM_PARAM_MAX_WP_RAM_RANGES];

You're still losing the upper 32 bits here. Iirc you agreed to range
check the value before storing into params[]...

Jan


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