From mboxrd@z Thu Jan 1 00:00:00 1970 From: Feng Wu Subject: [v3 06/15] vmx: Extend struct pi_desc to support VT-d Posted-Interrupts Date: Wed, 24 Jun 2015 13:18:20 +0800 Message-ID: <1435123109-10481-7-git-send-email-feng.wu@intel.com> References: <1435123109-10481-1-git-send-email-feng.wu@intel.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <1435123109-10481-1-git-send-email-feng.wu@intel.com> List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: xen-devel-bounces@lists.xen.org Errors-To: xen-devel-bounces@lists.xen.org To: xen-devel@lists.xen.org Cc: kevin.tian@intel.com, keir@xen.org, george.dunlap@eu.citrix.com, andrew.cooper3@citrix.com, jbeulich@suse.com, yang.z.zhang@intel.com, feng.wu@intel.com List-Id: xen-devel@lists.xenproject.org Extend struct pi_desc according to VT-d Posted-Interrupts Spec. Signed-off-by: Feng Wu --- 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 1104bda..dedfaef 100644 --- a/xen/include/asm-x86/hvm/vmx/vmcs.h +++ b/xen/include/asm-x86/hvm/vmx/vmcs.h @@ -81,8 +81,19 @@ 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