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Re: [Xen-devel] [PATCH v6 05/18] vmx: Extend struct pi_desc to support VT-d Posted-Interrupts



>>> On 25.08.15 at 03:57, <feng.wu@xxxxxxxxx> wrote:
> Extend struct pi_desc according to VT-d Posted-Interrupts Spec.
> 
> CC: Kevin Tian <kevin.tian@xxxxxxxxx>
> CC: Keir Fraser <keir@xxxxxxx>
> CC: Jan Beulich <jbeulich@xxxxxxxx>
> CC: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
> Signed-off-by: Feng Wu <feng.wu@xxxxxxxxx>
> Reviewed-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
> Acked-by: Kevin Tian <kevin.tian@xxxxxxxxx>
> Reviewed-by: Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx>
> ---
> v3:
> - Use u32 instead of u64 for the bitfield in 'struct pi_desc'
> 
>  xen/include/asm-x86/hvm/vmx/vmcs.h | 15 +++++++++++++--
>  1 file changed, 13 insertions(+), 2 deletions(-)
> 
> diff --git a/xen/include/asm-x86/hvm/vmx/vmcs.h 
> b/xen/include/asm-x86/hvm/vmx/vmcs.h
> index f1126d4..7e81752 100644
> --- a/xen/include/asm-x86/hvm/vmx/vmcs.h
> +++ b/xen/include/asm-x86/hvm/vmx/vmcs.h
> @@ -80,8 +80,19 @@ struct vmx_domain {
>  
>  struct pi_desc {
>      DECLARE_BITMAP(pir, NR_VECTORS);
> -    u32 control;
> -    u32 rsvd[7];
> +    union {
> +        struct
> +        {

The brace belongs on the previous line.

> +        u16 on     : 1,  /* bit 256 - Outstanding Notification */
> +            sn     : 1,  /* bit 257 - Suppress Notification */
> +            rsvd_1 : 14; /* bit 271:258 - Reserved */
> +        u8  nv;          /* bit 279:272 - Notification Vector */
> +        u8  rsvd_2;      /* bit 287:280 - Reserved */
> +        u32 ndst;        /* bit 319:288 - Notification Destination */

Too little indentation.

Jan


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