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 09/19] vfio: Register/unregister irq_bypass_producer
Date: Mon, 13 Jul 2015 17:47:25 +0800 [thread overview]
Message-ID: <1436780855-3617-10-git-send-email-feng.wu@intel.com> (raw)
In-Reply-To: <1436780855-3617-1-git-send-email-feng.wu@intel.com>
This patch adds the registration/unregistration of an
irq_bypass_producer for MSI/MSIx on vfio pci devices.
Signed-off-by: Feng Wu <feng.wu@intel.com>
---
drivers/vfio/pci/vfio_pci_intrs.c | 19 +++++++++++++++++++
drivers/vfio/pci/vfio_pci_private.h | 2 ++
2 files changed, 21 insertions(+)
diff --git a/drivers/vfio/pci/vfio_pci_intrs.c b/drivers/vfio/pci/vfio_pci_intrs.c
index 1f577b4..4795606 100644
--- a/drivers/vfio/pci/vfio_pci_intrs.c
+++ b/drivers/vfio/pci/vfio_pci_intrs.c
@@ -305,6 +305,16 @@ static int vfio_msi_enable(struct vfio_pci_device *vdev, int nvec, bool msix)
return 0;
}
+void vfio_pci_add_consumer(struct irq_bypass_producer *prod,
+ struct irq_bypass_consumer *cons)
+{
+}
+
+void vfio_pci_del_consumer(struct irq_bypass_producer *prod,
+ struct irq_bypass_consumer *cons)
+{
+}
+
static int vfio_msi_set_vector_signal(struct vfio_pci_device *vdev,
int vector, int fd, bool msix)
{
@@ -319,6 +329,7 @@ static int vfio_msi_set_vector_signal(struct vfio_pci_device *vdev,
if (vdev->ctx[vector].trigger) {
free_irq(irq, vdev->ctx[vector].trigger);
+ irq_bypass_unregister_producer(&vdev->ctx[vector].producer);
kfree(vdev->ctx[vector].name);
eventfd_ctx_put(vdev->ctx[vector].trigger);
vdev->ctx[vector].trigger = NULL;
@@ -360,6 +371,14 @@ static int vfio_msi_set_vector_signal(struct vfio_pci_device *vdev,
return ret;
}
+ INIT_LIST_HEAD(&vdev->ctx[vector].producer.node);
+ vdev->ctx[vector].producer.token = trigger;
+ vdev->ctx[vector].producer.irq = irq;
+ vdev->ctx[vector].producer.add_consumer = vfio_pci_add_consumer;
+ vdev->ctx[vector].producer.del_consumer = vfio_pci_del_consumer;
+ ret = irq_bypass_register_producer(&vdev->ctx[vector].producer);
+ WARN_ON(ret);
+
vdev->ctx[vector].trigger = trigger;
return 0;
diff --git a/drivers/vfio/pci/vfio_pci_private.h b/drivers/vfio/pci/vfio_pci_private.h
index ae0e1b4..0e7394f 100644
--- a/drivers/vfio/pci/vfio_pci_private.h
+++ b/drivers/vfio/pci/vfio_pci_private.h
@@ -13,6 +13,7 @@
#include <linux/mutex.h>
#include <linux/pci.h>
+#include <linux/irqbypass.h>
#ifndef VFIO_PCI_PRIVATE_H
#define VFIO_PCI_PRIVATE_H
@@ -29,6 +30,7 @@ struct vfio_pci_irq_ctx {
struct virqfd *mask;
char *name;
bool masked;
+ struct irq_bypass_producer producer;
};
struct vfio_pci_device {
--
2.1.0
next prev parent reply other threads:[~2015-07-13 9:58 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 ` [v5 02/19] KVM: Add some helper functions for Posted-Interrupts Feng Wu
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 ` Feng Wu [this message]
2015-07-13 12:55 ` [v5 09/19] vfio: Register/unregister irq_bypass_producer 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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