From mboxrd@z Thu Jan 1 00:00:00 1970 From: Feng Wu Subject: [PATCH v7 06/17] vmx: Add some helper functions for Posted-Interrupts Date: Fri, 11 Sep 2015 16:28:55 +0800 Message-ID: <1441960146-10569-7-git-send-email-feng.wu@intel.com> References: <1441960146-10569-1-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: <1441960146-10569-1-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: Keir Fraser , Kevin Tian , Feng Wu , Jan Beulich , Andrew Cooper List-Id: xen-devel@lists.xenproject.org This patch adds some helper functions to manipulate the Posted-Interrupts Descriptor. CC: Kevin Tian CC: Keir Fraser CC: Jan Beulich CC: Andrew Cooper Signed-off-by: Feng Wu Reviewed-by: Konrad Rzeszutek Wilk --- v7: - Use bitfield in pi_test_on() and pi_test_sn() v4: - Newly added xen/include/asm-x86/hvm/vmx/vmx.h | 21 +++++++++++++++++++++ 1 file changed, 21 insertions(+) diff --git a/xen/include/asm-x86/hvm/vmx/vmx.h b/xen/include/asm-x86/hvm/vmx/vmx.h index 3fbfa44..8d91110 100644 --- a/xen/include/asm-x86/hvm/vmx/vmx.h +++ b/xen/include/asm-x86/hvm/vmx/vmx.h @@ -101,6 +101,7 @@ void vmx_update_cpu_exec_control(struct vcpu *v); void vmx_update_secondary_exec_control(struct vcpu *v); #define POSTED_INTR_ON 0 +#define POSTED_INTR_SN 1 static inline int pi_test_and_set_pir(int vector, struct pi_desc *pi_desc) { return test_and_set_bit(vector, pi_desc->pir); @@ -121,11 +122,31 @@ static inline int pi_test_and_clear_on(struct pi_desc *pi_desc) return test_and_clear_bit(POSTED_INTR_ON, &pi_desc->control); } +static inline int pi_test_on(struct pi_desc *pi_desc) +{ + return pi_desc->on; +} + static inline unsigned long pi_get_pir(struct pi_desc *pi_desc, int group) { return xchg(&pi_desc->pir[group], 0); } +static inline int pi_test_sn(struct pi_desc *pi_desc) +{ + return pi_desc->sn; +} + +static inline void pi_set_sn(struct pi_desc *pi_desc) +{ + set_bit(POSTED_INTR_SN, &pi_desc->control); +} + +static inline void pi_clear_sn(struct pi_desc *pi_desc) +{ + clear_bit(POSTED_INTR_SN, &pi_desc->control); +} + /* * Exit Reasons */ -- 2.1.0