Displaying 20 results from an estimated 69 matches for "oldmem".
2014 Jun 02
4
[PULL 2/2] vhost: replace rcu with mutex
...vers/vhost/vhost.c b/drivers/vhost/vhost.c
> index 78987e4..1c05e60 100644
> --- a/drivers/vhost/vhost.c
> +++ b/drivers/vhost/vhost.c
> @@ -593,6 +593,7 @@ static long vhost_set_memory(struct vhost_dev *d, struct vhost_memory __user *m)
> {
> struct vhost_memory mem, *newmem, *oldmem;
> unsigned long size = offsetof(struct vhost_memory, regions);
> + int i;
>
> if (copy_from_user(&mem, m, size))
> return -EFAULT;
> @@ -619,7 +620,14 @@ static long vhost_set_memory(struct vhost_dev *d, struct vhost_memory __user *m)
> oldmem = rcu_dereference_...
2014 Jun 02
4
[PULL 2/2] vhost: replace rcu with mutex
...vers/vhost/vhost.c b/drivers/vhost/vhost.c
> index 78987e4..1c05e60 100644
> --- a/drivers/vhost/vhost.c
> +++ b/drivers/vhost/vhost.c
> @@ -593,6 +593,7 @@ static long vhost_set_memory(struct vhost_dev *d, struct vhost_memory __user *m)
> {
> struct vhost_memory mem, *newmem, *oldmem;
> unsigned long size = offsetof(struct vhost_memory, regions);
> + int i;
>
> if (copy_from_user(&mem, m, size))
> return -EFAULT;
> @@ -619,7 +620,14 @@ static long vhost_set_memory(struct vhost_dev *d, struct vhost_memory __user *m)
> oldmem = rcu_dereference_...
2014 Jun 02
3
[PULL 0/2] vhost enhancements for 3.16
Reposting with actual patches included.
The following changes since commit 96b2e73c5471542cb9c622c4360716684f8797ed:
Revert "net/mlx4_en: Use affinity hint" (2014-06-02 00:18:48 -0700)
are available in the git repository at:
git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost.git vhost-next
for you to fetch changes up to 2ae76693b8bcabf370b981cd00c36cd41d33fabc:
vhost:
2014 Jun 02
3
[PULL 0/2] vhost enhancements for 3.16
Reposting with actual patches included.
The following changes since commit 96b2e73c5471542cb9c622c4360716684f8797ed:
Revert "net/mlx4_en: Use affinity hint" (2014-06-02 00:18:48 -0700)
are available in the git repository at:
git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost.git vhost-next
for you to fetch changes up to 2ae76693b8bcabf370b981cd00c36cd41d33fabc:
vhost:
2014 Jun 02
0
[PULL 2/2] vhost: replace rcu with mutex
...deletion(-)
diff --git a/drivers/vhost/vhost.c b/drivers/vhost/vhost.c
index 78987e4..1c05e60 100644
--- a/drivers/vhost/vhost.c
+++ b/drivers/vhost/vhost.c
@@ -593,6 +593,7 @@ static long vhost_set_memory(struct vhost_dev *d, struct vhost_memory __user *m)
{
struct vhost_memory mem, *newmem, *oldmem;
unsigned long size = offsetof(struct vhost_memory, regions);
+ int i;
if (copy_from_user(&mem, m, size))
return -EFAULT;
@@ -619,7 +620,14 @@ static long vhost_set_memory(struct vhost_dev *d, struct vhost_memory __user *m)
oldmem = rcu_dereference_protected(d->memory,
lo...
2016 Jan 18
2
[PATCH RFC] vhost: convert pre sorted vhost memory array to interval tree
...-}
-
-static void *vhost_kvzalloc(unsigned long size)
-{
- void *n = kzalloc(size, GFP_KERNEL | __GFP_NOWARN | __GFP_REPEAT);
-
- if (!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...
2016 Jan 18
2
[PATCH RFC] vhost: convert pre sorted vhost memory array to interval tree
...-}
-
-static void *vhost_kvzalloc(unsigned long size)
-{
- void *n = kzalloc(size, GFP_KERNEL | __GFP_NOWARN | __GFP_REPEAT);
-
- if (!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...
2009 Dec 20
0
[PATCH 2/3] vhost: add access_ok checks
..._LOG_ALL)) &&
+ (!vq->log_used || log_access_ok(vq->log_base, vq->log_addr,
+ sizeof *vq->used +
+ vq->num * sizeof *vq->used->ring));
+}
+
static long vhost_set_memory(struct vhost_dev *d, struct vhost_memory __user *m)
{
struct vhost_memory mem, *newmem, *oldmem;
@@ -247,6 +332,9 @@ static long vhost_set_memory(struct vhost_dev *d, struct vhost_memory __user *m)
kfree(newmem);
return r;
}
+
+ if (!memory_access_ok(d, newmem, vhost_has_feature(d, VHOST_F_LOG_ALL)))
+ return -EFAULT;
oldmem = d->memory;
rcu_assign_pointer(d->memory, newmem...
2009 Dec 20
0
[PATCH 2/3] vhost: add access_ok checks
..._LOG_ALL)) &&
+ (!vq->log_used || log_access_ok(vq->log_base, vq->log_addr,
+ sizeof *vq->used +
+ vq->num * sizeof *vq->used->ring));
+}
+
static long vhost_set_memory(struct vhost_dev *d, struct vhost_memory __user *m)
{
struct vhost_memory mem, *newmem, *oldmem;
@@ -247,6 +332,9 @@ static long vhost_set_memory(struct vhost_dev *d, struct vhost_memory __user *m)
kfree(newmem);
return r;
}
+
+ if (!memory_access_ok(d, newmem, vhost_has_feature(d, VHOST_F_LOG_ALL)))
+ return -EFAULT;
oldmem = d->memory;
rcu_assign_pointer(d->memory, newmem...
2016 Mar 25
0
[RFC PATCH V2 1/2] vhost: convert pre sorted vhost memory array to interval tree
...-}
-
-static void *vhost_kvzalloc(unsigned long size)
-{
- void *n = kzalloc(size, GFP_KERNEL | __GFP_NOWARN | __GFP_REPEAT);
-
- if (!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...
2016 Jan 19
0
[PATCH RFC] vhost: convert pre sorted vhost memory array to interval tree
...> -{
> - void *n = kzalloc(size, GFP_KERNEL | __GFP_NOWARN | __GFP_REPEAT);
> -
> - if (!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 vhos...
2016 Apr 27
1
[RFC PATCH V2 1/2] vhost: convert pre sorted vhost memory array to interval tree
...> -{
> - void *n = kzalloc(size, GFP_KERNEL | __GFP_NOWARN | __GFP_REPEAT);
> -
> - if (!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 vhos...
2016 Apr 27
1
[RFC PATCH V2 1/2] vhost: convert pre sorted vhost memory array to interval tree
...> -{
> - void *n = kzalloc(size, GFP_KERNEL | __GFP_NOWARN | __GFP_REPEAT);
> -
> - if (!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 vhos...
2014 Jun 05
1
[PATCH v2 1/2] vhost: move acked_features to VQs
Refactor code to make sure features are only accessed
under VQ mutex. This makes everything simpler, no need
for RCU here anymore.
Signed-off-by: Michael S. Tsirkin <mst at redhat.com>
---
Note: this is on top of my last pull request
drivers/vhost/vhost.h | 11 +++--------
drivers/vhost/net.c | 8 +++-----
drivers/vhost/scsi.c | 22 +++++++++++++---------
drivers/vhost/test.c | 9
2014 Jun 05
1
[PATCH v2 1/2] vhost: move acked_features to VQs
Refactor code to make sure features are only accessed
under VQ mutex. This makes everything simpler, no need
for RCU here anymore.
Signed-off-by: Michael S. Tsirkin <mst at redhat.com>
---
Note: this is on top of my last pull request
drivers/vhost/vhost.h | 11 +++--------
drivers/vhost/net.c | 8 +++-----
drivers/vhost/scsi.c | 22 +++++++++++++---------
drivers/vhost/test.c | 9
2014 Jun 05
2
[PATCH 1/2] vhost: move acked_features to VQs
Refactor code to make sure features are only accessed
under VQ mutex. This makes everything simpler, no need
for RCU here anymore.
Signed-off-by: Michael S. Tsirkin <mst at redhat.com>
---
This is on top of the recent pull request that I sent.
drivers/vhost/vhost.h | 11 +++--------
drivers/vhost/net.c | 8 +++-----
drivers/vhost/scsi.c | 22 +++++++++++++---------
2014 Jun 05
2
[PATCH 1/2] vhost: move acked_features to VQs
Refactor code to make sure features are only accessed
under VQ mutex. This makes everything simpler, no need
for RCU here anymore.
Signed-off-by: Michael S. Tsirkin <mst at redhat.com>
---
This is on top of the recent pull request that I sent.
drivers/vhost/vhost.h | 11 +++--------
drivers/vhost/net.c | 8 +++-----
drivers/vhost/scsi.c | 22 +++++++++++++---------
2009 Dec 24
1
[PATCH] vhost: access check thinko fixes
...t_vq_access_ok(struct vhost_virtqueue *vq)
+{
+ return vq_access_ok(vq->num, vq->desc, vq->avail, vq->used) &&
+ vq_log_access_ok(vq, vq->log_base);
+}
+
static long vhost_set_memory(struct vhost_dev *d, struct vhost_memory __user *m)
{
struct vhost_memory mem, *newmem, *oldmem;
@@ -564,15 +572,14 @@ long vhost_dev_ioctl(struct vhost_dev *d, unsigned int ioctl, unsigned long arg)
}
for (i = 0; i < d->nvqs; ++i) {
struct vhost_virtqueue *vq;
+ void __user *base = (void __user *)(unsigned long)p;
vq = d->vqs + i;
mutex_lock(&vq->mutex);
-...
2009 Dec 24
1
[PATCH] vhost: access check thinko fixes
...t_vq_access_ok(struct vhost_virtqueue *vq)
+{
+ return vq_access_ok(vq->num, vq->desc, vq->avail, vq->used) &&
+ vq_log_access_ok(vq, vq->log_base);
+}
+
static long vhost_set_memory(struct vhost_dev *d, struct vhost_memory __user *m)
{
struct vhost_memory mem, *newmem, *oldmem;
@@ -564,15 +572,14 @@ long vhost_dev_ioctl(struct vhost_dev *d, unsigned int ioctl, unsigned long arg)
}
for (i = 0; i < d->nvqs; ++i) {
struct vhost_virtqueue *vq;
+ void __user *base = (void __user *)(unsigned long)p;
vq = d->vqs + i;
mutex_lock(&vq->mutex);
-...
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