Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753125AbbGMKEg (ORCPT ); Mon, 13 Jul 2015 06:04:36 -0400 Received: from mga03.intel.com ([134.134.136.65]:34120 "EHLO mga03.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752099AbbGMJ6g (ORCPT ); Mon, 13 Jul 2015 05:58:36 -0400 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.15,462,1432623600"; d="scan'208";a="761364767" From: Feng Wu To: kvm@vger.kernel.org, linux-kernel@vger.kernel.org Cc: pbonzini@redhat.com, alex.williamson@redhat.com, joro@8bytes.org, eric.auger@linaro.org, feng.wu@intel.com Subject: [v5 02/19] KVM: Add some helper functions for Posted-Interrupts Date: Mon, 13 Jul 2015 17:47:18 +0800 Message-Id: <1436780855-3617-3-git-send-email-feng.wu@intel.com> X-Mailer: git-send-email 2.1.0 In-Reply-To: <1436780855-3617-1-git-send-email-feng.wu@intel.com> References: <1436780855-3617-1-git-send-email-feng.wu@intel.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1585 Lines: 60 This patch adds some helper functions to manipulate the Posted-Interrupts Descriptor. Signed-off-by: Feng Wu --- arch/x86/kvm/vmx.c | 26 ++++++++++++++++++++++++++ 1 file changed, 26 insertions(+) diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c index 765539e..1e815b6 100644 --- a/arch/x86/kvm/vmx.c +++ b/arch/x86/kvm/vmx.c @@ -442,6 +442,8 @@ struct nested_vmx { }; #define POSTED_INTR_ON 0 +#define POSTED_INTR_SN 1 + /* Posted-Interrupt Descriptor */ struct pi_desc { u32 pir[8]; /* Posted interrupt requested */ @@ -482,6 +484,30 @@ static int pi_test_and_set_pir(int vector, struct pi_desc *pi_desc) return test_and_set_bit(vector, (unsigned long *)pi_desc->pir); } +static void pi_clear_sn(struct pi_desc *pi_desc) +{ + return clear_bit(POSTED_INTR_SN, + (unsigned long *)&pi_desc->control); +} + +static void pi_set_sn(struct pi_desc *pi_desc) +{ + return set_bit(POSTED_INTR_SN, + (unsigned long *)&pi_desc->control); +} + +static int pi_test_on(struct pi_desc *pi_desc) +{ + return test_bit(POSTED_INTR_ON, + (unsigned long *)&pi_desc->control); +} + +static int pi_test_sn(struct pi_desc *pi_desc) +{ + return test_bit(POSTED_INTR_SN, + (unsigned long *)&pi_desc->control); +} + struct vcpu_vmx { struct kvm_vcpu vcpu; unsigned long host_rsp; -- 2.1.0 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/