From: Steve Sistare <steven.sistare@oracle.com>
To: kvm@vger.kernel.org
Cc: Alex Williamson <alex.williamson@redhat.com>,
Cornelia Huck <cohuck@redhat.com>,
Kirti Wankhede <kwankhede@nvidia.com>,
Steve Sistare <steven.sistare@oracle.com>
Subject: [PATCH V3 8/9] vfio/type1: implement notify callback
Date: Fri, 29 Jan 2021 08:54:11 -0800 [thread overview]
Message-ID: <1611939252-7240-9-git-send-email-steven.sistare@oracle.com> (raw)
In-Reply-To: <1611939252-7240-1-git-send-email-steven.sistare@oracle.com>
Implement a notify callback that remembers if the container's file
descriptor has been closed.
Signed-off-by: Steve Sistare <steven.sistare@oracle.com>
---
drivers/vfio/vfio_iommu_type1.c | 15 +++++++++++++++
1 file changed, 15 insertions(+)
diff --git a/drivers/vfio/vfio_iommu_type1.c b/drivers/vfio/vfio_iommu_type1.c
index cbe3c65..b74a5f3 100644
--- a/drivers/vfio/vfio_iommu_type1.c
+++ b/drivers/vfio/vfio_iommu_type1.c
@@ -74,6 +74,7 @@ struct vfio_iommu {
bool nesting;
bool dirty_page_tracking;
bool pinned_page_dirty_scope;
+ bool container_open;
int vaddr_invalid_count;
};
@@ -2529,6 +2530,7 @@ static void *vfio_iommu_type1_open(unsigned long arg)
iommu->dma_list = RB_ROOT;
iommu->dma_avail = dma_entry_limit;
iommu->vaddr_invalid_count = 0;
+ iommu->container_open = true;
mutex_init(&iommu->lock);
BLOCKING_INIT_NOTIFIER_HEAD(&iommu->notifier);
@@ -3055,6 +3057,18 @@ static int vfio_iommu_type1_dma_rw(void *iommu_data, dma_addr_t user_iova,
return ret;
}
+static void vfio_iommu_type1_notify(void *iommu_data, unsigned int event,
+ void *data)
+{
+ struct vfio_iommu *iommu = iommu_data;
+
+ if (event != VFIO_DRIVER_NOTIFY_CONTAINER_CLOSE)
+ return;
+ mutex_lock(&iommu->lock);
+ iommu->container_open = false;
+ mutex_unlock(&iommu->lock);
+}
+
static const struct vfio_iommu_driver_ops vfio_iommu_driver_ops_type1 = {
.name = "vfio-iommu-type1",
.owner = THIS_MODULE,
@@ -3068,6 +3082,7 @@ static int vfio_iommu_type1_dma_rw(void *iommu_data, dma_addr_t user_iova,
.register_notifier = vfio_iommu_type1_register_notifier,
.unregister_notifier = vfio_iommu_type1_unregister_notifier,
.dma_rw = vfio_iommu_type1_dma_rw,
+ .notify = vfio_iommu_type1_notify,
};
static int __init vfio_iommu_type1_init(void)
--
1.8.3.1
next prev parent reply other threads:[~2021-01-29 17:23 UTC|newest]
Thread overview: 37+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-01-29 16:54 [PATCH V3 0/9] vfio virtual address update Steve Sistare
2021-01-29 16:54 ` [PATCH V3 1/9] vfio: option to unmap all Steve Sistare
2021-02-01 11:42 ` Cornelia Huck
2021-02-01 12:52 ` Steven Sistare
2021-02-01 13:13 ` Cornelia Huck
2021-01-29 16:54 ` [PATCH V3 2/9] vfio/type1: unmap cleanup Steve Sistare
2021-02-01 11:50 ` Cornelia Huck
2021-01-29 16:54 ` [PATCH V3 3/9] vfio/type1: implement unmap all Steve Sistare
2021-02-01 11:59 ` Cornelia Huck
2021-01-29 16:54 ` [PATCH V3 4/9] vfio: interfaces to update vaddr Steve Sistare
2021-02-01 13:13 ` Cornelia Huck
2021-01-29 16:54 ` [PATCH V3 5/9] vfio/type1: massage unmap iteration Steve Sistare
2021-01-29 21:56 ` Alex Williamson
2021-01-30 16:51 ` Steven Sistare
2021-02-01 12:11 ` Cornelia Huck
2021-01-29 16:54 ` [PATCH V3 6/9] vfio/type1: implement interfaces to update vaddr Steve Sistare
2021-01-29 21:56 ` Alex Williamson
2021-01-30 16:51 ` Steven Sistare
2021-02-01 12:27 ` Cornelia Huck
2021-01-29 16:54 ` [PATCH V3 7/9] vfio: iommu driver notify callback Steve Sistare
2021-01-29 21:57 ` Alex Williamson
2021-01-30 16:51 ` Steven Sistare
2021-02-01 12:34 ` Cornelia Huck
2021-02-01 12:52 ` Steven Sistare
2021-02-01 13:17 ` Cornelia Huck
2021-02-01 13:17 ` Cornelia Huck
2021-01-29 16:54 ` Steve Sistare [this message]
2021-02-01 12:40 ` [PATCH V3 8/9] vfio/type1: implement " Cornelia Huck
2021-01-29 16:54 ` [PATCH V3 9/9] vfio/type1: block on invalid vaddr Steve Sistare
2021-02-01 12:47 ` Cornelia Huck
2021-01-29 21:55 ` [PATCH V3 0/9] vfio virtual address update Alex Williamson
2021-01-29 22:14 ` Steven Sistare
2021-01-30 16:54 ` Steven Sistare
2021-02-01 20:23 ` Alex Williamson
2021-02-01 21:13 ` Steven Sistare
2021-02-02 7:54 ` Cornelia Huck
2021-02-02 17:21 ` Alex Williamson
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