On Wed, Aug 12, 2015 at 10:35:26AM +0800, Feng Wu wrote:
> Extend struct pi_desc according to VT-d Posted-Interrupts Spec.
>
> CC: Kevin Tian <kevin.t...@intel.com>
> CC: Keir Fraser <k...@xen.org>
> CC: Jan Beulich <jbeul...@suse.com>
> CC: Andrew Cooper <andrew.coop...@citrix.com>
> Signed-off-by: Feng Wu <feng...@intel.com>
> Reviewed-by: Andrew Cooper <andrew.coop...@citrix.com>
> Acked-by: Kevin Tian <kevin.t...@intel.com>
Reviewed-by: Konrad Rzeszutek Wilk <konrad.w...@oracle.com>
> ---
> 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
> + {
> + 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 */
> + };
> + u64 control;
> + };
> + u32 rsvd[6];
> } __attribute__ ((aligned (64)));
>
> #define ept_get_wl(ept) ((ept)->ept_wl)
> --
> 2.1.0
>
>
> _______________________________________________
> Xen-devel mailing list
> Xen-devel@lists.xen.org
> http://lists.xen.org/xen-devel
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