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From: Feng Wu <feng.wu@intel.com>
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	[thread overview]
Message-ID: <1436780855-3617-3-git-send-email-feng.wu@intel.com> (raw)
In-Reply-To: <1436780855-3617-1-git-send-email-feng.wu@intel.com>

This patch adds some helper functions to manipulate the
Posted-Interrupts Descriptor.

Signed-off-by: Feng Wu <feng.wu@intel.com>
---
 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


  parent reply	other threads:[~2015-07-13 10:04 UTC|newest]

Thread overview: 29+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-07-13  9:47 [v5 00/19] Add VT-d Posted-Interrupts support Feng Wu
2015-07-13  9:47 ` [v5 01/19] KVM: Extend struct pi_desc for VT-d Posted-Interrupts Feng Wu
2015-07-13  9:47 ` Feng Wu [this message]
2015-07-13  9:47 ` [v5 03/19] KVM: Define a new interface kvm_intr_is_single_vcpu() Feng Wu
2015-07-13  9:47 ` [v5 04/19] KVM: Get Posted-Interrupts descriptor address from struct kvm_vcpu Feng Wu
2015-07-13  9:47 ` [v5 05/19] KVM: Add interfaces to control PI outside vmx Feng Wu
2015-07-13  9:47 ` [v5 06/19] KVM: Make struct kvm_irq_routing_table accessible Feng Wu
2015-07-13  9:47 ` [v5 07/19] KVM: make kvm_set_msi_irq() public Feng Wu
2015-07-13  9:47 ` [v5 08/19] vfio: Select IRQ_BYPASS_MANAGER for vfio PCI devices Feng Wu
2015-07-13  9:47 ` [v5 09/19] vfio: Register/unregister irq_bypass_producer Feng Wu
2015-07-13 12:55   ` Eric Auger
2015-07-13 18:57   ` Alex Williamson
2015-07-13  9:47 ` [v5 10/19] KVM, x86: Select IRQ_BYPASS_MANAGER for KVM_INTEL Feng Wu
2015-07-13  9:47 ` [v5 11/19] KVM: create kvm_irqfd.h Feng Wu
2015-07-13  9:47 ` [v5 12/19] KVM: eventfd: add irq bypass information in irqfd Feng Wu
2015-07-13  9:47 ` [v5 13/19] KVM: x86: Update IRTE for posted-interrupts Feng Wu
2015-07-13  9:47 ` [v5 14/19] KVM: x86: Add arch specific routines for irqbypass manager Feng Wu
2015-07-13 13:17   ` Eric Auger
2015-07-13  9:47 ` [v5 15/19] KVM: eventfd: add irq bypass consumer management Feng Wu
2015-07-13 13:16   ` Eric Auger
2015-07-13 13:47     ` Paolo Bonzini
2015-07-28  5:06       ` Wu, Feng
2015-07-13  9:47 ` [v5 16/19] KVM: Add an arch specific hooks in 'struct kvm_kernel_irqfd' Feng Wu
2015-07-13 13:09   ` Eric Auger
2015-07-13  9:47 ` [v5 17/19] KVM: Update Posted-Interrupts Descriptor when vCPU is preempted Feng Wu
2015-07-13  9:47 ` [v5 18/19] KVM: Update Posted-Interrupts Descriptor when vCPU is blocked Feng Wu
2015-07-13  9:47 ` [v5 19/19] KVM: Warn if 'SN' is set during posting interrupts by software Feng Wu
2015-07-13 13:19 ` [v5 00/19] Add VT-d Posted-Interrupts support Eric Auger
2015-07-14  1:08   ` Wu, Feng

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