Displaying 20 results from an estimated 22 matches for "newumem".
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new_mem
2016 Mar 25
4
[RFC PATCH V2 0/2] basic device IOTLB support
This patch tries to implement an device IOTLB for vhost. This could be
used with for co-operation with userspace(qemu) implementation of
iommu for a secure DMA environment (DMAR) in guest.
The idea is simple. When vhost meets an IOTLB miss, it will request
the assistance of userspace to do the translation, this is done
through:
- Fill the translation request in a preset userspace address (This
2016 Mar 25
4
[RFC PATCH V2 0/2] basic device IOTLB support
This patch tries to implement an device IOTLB for vhost. This could be
used with for co-operation with userspace(qemu) implementation of
iommu for a secure DMA environment (DMAR) in guest.
The idea is simple. When vhost meets an IOTLB miss, it will request
the assistance of userspace to do the translation, this is done
through:
- Fill the translation request in a preset userspace address (This
2016 Jan 18
2
[PATCH RFC] vhost: convert pre sorted vhost memory array to interval tree
...!n)
- n = vzalloc(size);
- return n;
-}
-
static long vhost_set_memory(struct vhost_dev *d, struct vhost_memory __user *m)
{
- struct vhost_memory mem, *newmem, *oldmem;
+ struct vhost_memory mem, *newmem;
+ struct vhost_memory_region *region;
+ struct vhost_umem_node *node;
+ struct vhost_umem *newumem, *oldumem;
unsigned long size = offsetof(struct vhost_memory, regions);
int i;
@@ -710,24 +722,51 @@ static long vhost_set_memory(struct vhost_dev *d, struct vhost_memory __user *m)
kvfree(newmem);
return -EFAULT;
}
- sort(newmem->regions, newmem->nregions, sizeof(*newmem->re...
2016 Jan 18
2
[PATCH RFC] vhost: convert pre sorted vhost memory array to interval tree
...!n)
- n = vzalloc(size);
- return n;
-}
-
static long vhost_set_memory(struct vhost_dev *d, struct vhost_memory __user *m)
{
- struct vhost_memory mem, *newmem, *oldmem;
+ struct vhost_memory mem, *newmem;
+ struct vhost_memory_region *region;
+ struct vhost_umem_node *node;
+ struct vhost_umem *newumem, *oldumem;
unsigned long size = offsetof(struct vhost_memory, regions);
int i;
@@ -710,24 +722,51 @@ static long vhost_set_memory(struct vhost_dev *d, struct vhost_memory __user *m)
kvfree(newmem);
return -EFAULT;
}
- sort(newmem->regions, newmem->nregions, sizeof(*newmem->re...
2016 Mar 25
0
[RFC PATCH V2 1/2] vhost: convert pre sorted vhost memory array to interval tree
...!n)
- n = vzalloc(size);
- return n;
-}
-
static long vhost_set_memory(struct vhost_dev *d, struct vhost_memory __user *m)
{
- struct vhost_memory mem, *newmem, *oldmem;
+ struct vhost_memory mem, *newmem;
+ struct vhost_memory_region *region;
+ struct vhost_umem_node *node;
+ struct vhost_umem *newumem, *oldumem;
unsigned long size = offsetof(struct vhost_memory, regions);
int i;
@@ -710,24 +724,52 @@ static long vhost_set_memory(struct vhost_dev *d, struct vhost_memory __user *m)
kvfree(newmem);
return -EFAULT;
}
- sort(newmem->regions, newmem->nregions, sizeof(*newmem->re...
2016 Apr 27
1
[RFC PATCH V2 1/2] vhost: convert pre sorted vhost memory array to interval tree
...> -
> static long vhost_set_memory(struct vhost_dev *d, struct vhost_memory __user *m)
> {
> - struct vhost_memory mem, *newmem, *oldmem;
> + struct vhost_memory mem, *newmem;
> + struct vhost_memory_region *region;
> + struct vhost_umem_node *node;
> + struct vhost_umem *newumem, *oldumem;
> unsigned long size = offsetof(struct vhost_memory, regions);
> int i;
>
> @@ -710,24 +724,52 @@ static long vhost_set_memory(struct vhost_dev *d, struct vhost_memory __user *m)
> kvfree(newmem);
> return -EFAULT;
> }
> - sort(newmem->regions, ne...
2016 Apr 27
1
[RFC PATCH V2 1/2] vhost: convert pre sorted vhost memory array to interval tree
...> -
> static long vhost_set_memory(struct vhost_dev *d, struct vhost_memory __user *m)
> {
> - struct vhost_memory mem, *newmem, *oldmem;
> + struct vhost_memory mem, *newmem;
> + struct vhost_memory_region *region;
> + struct vhost_umem_node *node;
> + struct vhost_umem *newumem, *oldumem;
> unsigned long size = offsetof(struct vhost_memory, regions);
> int i;
>
> @@ -710,24 +724,52 @@ static long vhost_set_memory(struct vhost_dev *d, struct vhost_memory __user *m)
> kvfree(newmem);
> return -EFAULT;
> }
> - sort(newmem->regions, ne...
2016 Jan 19
0
[PATCH RFC] vhost: convert pre sorted vhost memory array to interval tree
...> -
> static long vhost_set_memory(struct vhost_dev *d, struct vhost_memory __user *m)
> {
> - struct vhost_memory mem, *newmem, *oldmem;
> + struct vhost_memory mem, *newmem;
> + struct vhost_memory_region *region;
> + struct vhost_umem_node *node;
> + struct vhost_umem *newumem, *oldumem;
> unsigned long size = offsetof(struct vhost_memory, regions);
> int i;
>
> @@ -710,24 +722,51 @@ static long vhost_set_memory(struct vhost_dev *d, struct vhost_memory __user *m)
> kvfree(newmem);
> return -EFAULT;
> }
> - sort(newmem->regions, ne...
2016 Mar 25
0
[RFC PATCH V2 2/2] vhost: device IOTLB API
...+ umem->numem = 0;
+ INIT_LIST_HEAD(&umem->umem_list);
+
+ return umem;
+}
+
static long vhost_set_memory(struct vhost_dev *d, struct vhost_memory __user *m)
{
struct vhost_memory mem, *newmem;
struct vhost_memory_region *region;
- struct vhost_umem_node *node;
struct vhost_umem *newumem, *oldumem;
unsigned long size = offsetof(struct vhost_memory, regions);
int i;
@@ -725,28 +790,23 @@ static long vhost_set_memory(struct vhost_dev *d, struct vhost_memory __user *m)
return -EFAULT;
}
- newumem = vhost_kvzalloc(sizeof(*newumem));
+ newumem = vhost_umem_alloc();
if (!new...
2016 Jun 23
3
[PATCH V2 0/3] basic device IOTLB support for vhost_net
This patch tries to implement an device IOTLB for vhost. This could be
used with for co-operation with userspace IOMMU implementation (qemu)
for a secure DMA environment (DMAR) in guest.
The idea is simple. When vhost meets an IOTLB miss, it will request
the assistance of userspace to do the translation, this is done
through:
- when there's a IOTLB miss, it will notify userspace through
2016 Jun 23
3
[PATCH V2 0/3] basic device IOTLB support for vhost_net
This patch tries to implement an device IOTLB for vhost. This could be
used with for co-operation with userspace IOMMU implementation (qemu)
for a secure DMA environment (DMAR) in guest.
The idea is simple. When vhost meets an IOTLB miss, it will request
the assistance of userspace to do the translation, this is done
through:
- when there's a IOTLB miss, it will notify userspace through
2016 May 24
6
[RFC PATCH V3 0/3] basic device IOTLB support
This patch tries to implement an device IOTLB for vhost. This could be
used with for co-operation with userspace IOMMU implementation (qemu)
for a secure DMA environment (DMAR) in guest.
The idea is simple. When vhost meets an IOTLB miss, it will request
the assistance of userspace to do the translation, this is done
through:
- when there's a IOTLB miss, it will notify userspace through
2016 May 24
6
[RFC PATCH V3 0/3] basic device IOTLB support
This patch tries to implement an device IOTLB for vhost. This could be
used with for co-operation with userspace IOMMU implementation (qemu)
for a secure DMA environment (DMAR) in guest.
The idea is simple. When vhost meets an IOTLB miss, it will request
the assistance of userspace to do the translation, this is done
through:
- when there's a IOTLB miss, it will notify userspace through
2016 Jun 22
4
[PATCH 0/3] basic device IOTLB support
This patch tries to implement an device IOTLB for vhost. This could be
used with for co-operation with userspace IOMMU implementation (qemu)
for a secure DMA environment (DMAR) in guest.
The idea is simple. When vhost meets an IOTLB miss, it will request
the assistance of userspace to do the translation, this is done
through:
- when there's a IOTLB miss, it will notify userspace through
2016 Jun 22
4
[PATCH 0/3] basic device IOTLB support
This patch tries to implement an device IOTLB for vhost. This could be
used with for co-operation with userspace IOMMU implementation (qemu)
for a secure DMA environment (DMAR) in guest.
The idea is simple. When vhost meets an IOTLB miss, it will request
the assistance of userspace to do the translation, this is done
through:
- when there's a IOTLB miss, it will notify userspace through
2016 Jun 22
0
[PATCH 3/3] vhost: device IOTLB API
...+ umem->numem = 0;
+ INIT_LIST_HEAD(&umem->umem_list);
+
+ return umem;
+}
+
static long vhost_set_memory(struct vhost_dev *d, struct vhost_memory __user *m)
{
struct vhost_memory mem, *newmem;
struct vhost_memory_region *region;
- struct vhost_umem_node *node;
struct vhost_umem *newumem, *oldumem;
unsigned long size = offsetof(struct vhost_memory, regions);
int i;
@@ -767,28 +1228,23 @@ static long vhost_set_memory(struct vhost_dev *d, struct vhost_memory __user *m)
return -EFAULT;
}
- newumem = vhost_kvzalloc(sizeof(*newumem));
+ newumem = vhost_umem_alloc();
if (!ne...
2020 Feb 20
0
[PATCH V3 1/5] vhost: factor out IOTLB
...->umem_tree = RB_ROOT_CACHED;
- umem->numem = 0;
- INIT_LIST_HEAD(&umem->umem_list);
-
- return umem;
-}
-
static long vhost_set_memory(struct vhost_dev *d, struct vhost_memory __user *m)
{
struct vhost_memory mem, *newmem;
struct vhost_memory_region *region;
- struct vhost_umem *newumem, *oldumem;
+ struct vhost_iotlb *newumem, *oldumem;
unsigned long size = offsetof(struct vhost_memory, regions);
int i;
@@ -1448,7 +1368,7 @@ static long vhost_set_memory(struct vhost_dev *d, struct vhost_memory __user *m)
return -EFAULT;
}
- newumem = vhost_umem_alloc();
+ newumem = i...
2016 Apr 27
2
[RFC PATCH V2 2/2] vhost: device IOTLB API
...>umem_list);
> +
> + return umem;
> +}
> +
> static long vhost_set_memory(struct vhost_dev *d, struct vhost_memory __user *m)
> {
> struct vhost_memory mem, *newmem;
> struct vhost_memory_region *region;
> - struct vhost_umem_node *node;
> struct vhost_umem *newumem, *oldumem;
> unsigned long size = offsetof(struct vhost_memory, regions);
> int i;
> @@ -725,28 +790,23 @@ static long vhost_set_memory(struct vhost_dev *d, struct vhost_memory __user *m)
> return -EFAULT;
> }
>
> - newumem = vhost_kvzalloc(sizeof(*newumem));
> +...
2016 Apr 27
2
[RFC PATCH V2 2/2] vhost: device IOTLB API
...>umem_list);
> +
> + return umem;
> +}
> +
> static long vhost_set_memory(struct vhost_dev *d, struct vhost_memory __user *m)
> {
> struct vhost_memory mem, *newmem;
> struct vhost_memory_region *region;
> - struct vhost_umem_node *node;
> struct vhost_umem *newumem, *oldumem;
> unsigned long size = offsetof(struct vhost_memory, regions);
> int i;
> @@ -725,28 +790,23 @@ static long vhost_set_memory(struct vhost_dev *d, struct vhost_memory __user *m)
> return -EFAULT;
> }
>
> - newumem = vhost_kvzalloc(sizeof(*newumem));
> +...
2020 Feb 20
5
[PATCH V4 0/5] vDPA support
Hi all:
This is an update version of vDPA support in kernel.
vDPA device is a device that uses a datapath which complies with the
virtio specifications with vendor specific control path. vDPA devices
can be both physically located on the hardware or emulated by
software. vDPA hardware devices are usually implemented through PCIE
with the following types:
- PF (Physical Function) - A single