Displaying 20 results from an estimated 113 matches for "vhost_get_us".
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vhost_get_bufs
2016 Dec 14
1
[PATCH V2] vhost: introduce O(1) vq metadata cache
...ser(to, uaddr, size);
+
ret = translate_desc(vq, (u64)(uintptr_t)from, size, vq->iotlb_iov,
ARRAY_SIZE(vq->iotlb_iov),
VHOST_ACCESS_RO);
@@ -782,17 +823,12 @@ static int vhost_copy_from_user(struct vhost_virtqueue *vq, void *to,
return ret;
}
-static void __user *__vhost_get_user(struct vhost_virtqueue *vq,
- void *addr, unsigned size)
+static void __user *__vhost_get_user_slow(struct vhost_virtqueue *vq,
+ void *addr, unsigned int size,
+ int type)
{
int ret;
- /* This function should be called after iotlb
- * prefetch, which means we're sur...
2016 Dec 14
1
[PATCH V2] vhost: introduce O(1) vq metadata cache
...ser(to, uaddr, size);
+
ret = translate_desc(vq, (u64)(uintptr_t)from, size, vq->iotlb_iov,
ARRAY_SIZE(vq->iotlb_iov),
VHOST_ACCESS_RO);
@@ -782,17 +823,12 @@ static int vhost_copy_from_user(struct vhost_virtqueue *vq, void *to,
return ret;
}
-static void __user *__vhost_get_user(struct vhost_virtqueue *vq,
- void *addr, unsigned size)
+static void __user *__vhost_get_user_slow(struct vhost_virtqueue *vq,
+ void *addr, unsigned int size,
+ int type)
{
int ret;
- /* This function should be called after iotlb
- * prefetch, which means we're sur...
2016 Dec 14
2
[PATCH] vhost: introduce O(1) vq metadata cache
...ser(to, uaddr, size);
+
ret = translate_desc(vq, (u64)(uintptr_t)from, size, vq->iotlb_iov,
ARRAY_SIZE(vq->iotlb_iov),
VHOST_ACCESS_RO);
@@ -782,17 +823,12 @@ static int vhost_copy_from_user(struct vhost_virtqueue *vq, void *to,
return ret;
}
-static void __user *__vhost_get_user(struct vhost_virtqueue *vq,
- void *addr, unsigned size)
+static void __user *__vhost_get_user_slow(struct vhost_virtqueue *vq,
+ void *addr, unsigned int size,
+ int type)
{
int ret;
- /* This function should be called after iotlb
- * prefetch, which means we're sur...
2016 Dec 14
2
[PATCH] vhost: introduce O(1) vq metadata cache
...ser(to, uaddr, size);
+
ret = translate_desc(vq, (u64)(uintptr_t)from, size, vq->iotlb_iov,
ARRAY_SIZE(vq->iotlb_iov),
VHOST_ACCESS_RO);
@@ -782,17 +823,12 @@ static int vhost_copy_from_user(struct vhost_virtqueue *vq, void *to,
return ret;
}
-static void __user *__vhost_get_user(struct vhost_virtqueue *vq,
- void *addr, unsigned size)
+static void __user *__vhost_get_user_slow(struct vhost_virtqueue *vq,
+ void *addr, unsigned int size,
+ int type)
{
int ret;
- /* This function should be called after iotlb
- * prefetch, which means we're sur...
2018 Jul 22
2
[PATCH net-next v6 1/4] net: vhost: lock the vqs one by one
...d->nvqs; ++i) {
> + mutex_lock(&d->vqs[i]->mutex);
> __vhost_vq_meta_reset(d->vqs[i]);
> + mutex_unlock(&d->vqs[i]->mutex);
> + }
> }
>
> static void vhost_vq_reset(struct vhost_dev *dev,
> @@ -890,20 +893,6 @@ static inline void __user *__vhost_get_user(struct vhost_virtqueue *vq,
> #define vhost_get_used(vq, x, ptr) \
> vhost_get_user(vq, x, ptr, VHOST_ADDR_USED)
>
> -static void vhost_dev_lock_vqs(struct vhost_dev *d)
> -{
> - int i = 0;
> - for (i = 0; i < d->nvqs; ++i)
> - mutex_lock_nested(&d->vqs[...
2018 Nov 29
2
[REBASE PATCH net-next v9 1/4] net: vhost: lock the vqs one by one
...d->nvqs; ++i) {
> + mutex_lock(&d->vqs[i]->mutex);
> __vhost_vq_meta_reset(d->vqs[i]);
> + mutex_unlock(&d->vqs[i]->mutex);
> + }
> }
>
> static void vhost_vq_reset(struct vhost_dev *dev,
> @@ -891,20 +894,6 @@ static inline void __user *__vhost_get_user(struct vhost_virtqueue *vq,
> #define vhost_get_used(vq, x, ptr) \
> vhost_get_user(vq, x, ptr, VHOST_ADDR_USED)
>
> -static void vhost_dev_lock_vqs(struct vhost_dev *d)
> -{
> - int i = 0;
> - for (i = 0; i < d->nvqs; ++i)
> - mutex_lock_nested(&d->vqs[...
2018 Jul 22
2
[PATCH net-next v6 1/4] net: vhost: lock the vqs one by one
...d->nvqs; ++i) {
> + mutex_lock(&d->vqs[i]->mutex);
> __vhost_vq_meta_reset(d->vqs[i]);
> + mutex_unlock(&d->vqs[i]->mutex);
> + }
> }
>
> static void vhost_vq_reset(struct vhost_dev *dev,
> @@ -890,20 +893,6 @@ static inline void __user *__vhost_get_user(struct vhost_virtqueue *vq,
> #define vhost_get_used(vq, x, ptr) \
> vhost_get_user(vq, x, ptr, VHOST_ADDR_USED)
>
> -static void vhost_dev_lock_vqs(struct vhost_dev *d)
> -{
> - int i = 0;
> - for (i = 0; i < d->nvqs; ++i)
> - mutex_lock_nested(&d->vqs[...
2018 Nov 29
2
[REBASE PATCH net-next v9 1/4] net: vhost: lock the vqs one by one
...d->nvqs; ++i) {
> + mutex_lock(&d->vqs[i]->mutex);
> __vhost_vq_meta_reset(d->vqs[i]);
> + mutex_unlock(&d->vqs[i]->mutex);
> + }
> }
>
> static void vhost_vq_reset(struct vhost_dev *dev,
> @@ -891,20 +894,6 @@ static inline void __user *__vhost_get_user(struct vhost_virtqueue *vq,
> #define vhost_get_used(vq, x, ptr) \
> vhost_get_user(vq, x, ptr, VHOST_ADDR_USED)
>
> -static void vhost_dev_lock_vqs(struct vhost_dev *d)
> -{
> - int i = 0;
> - for (i = 0; i < d->nvqs; ++i)
> - mutex_lock_nested(&d->vqs[...
2019 Mar 06
1
[RFC PATCH V2 2/5] vhost: fine grain userspace memory accessors
...++++++++----------
> 1 file changed, 77 insertions(+), 17 deletions(-)
>
> diff --git a/drivers/vhost/vhost.c b/drivers/vhost/vhost.c
> index 400aa78..29709e7 100644
> --- a/drivers/vhost/vhost.c
> +++ b/drivers/vhost/vhost.c
> @@ -869,6 +869,34 @@ static inline void __user *__vhost_get_user(struct vhost_virtqueue *vq,
> ret; \
> })
>
> +static inline int vhost_put_avail_event(struct vhost_virtqueue *vq)
> +{
> + return vhost_put_user(vq, cpu_to_vhost16(vq, vq->avail_idx),
> + vhost_avail_event(vq));
> +}
> +
> +static inline int vhost_put_u...
2019 Mar 06
1
[RFC PATCH V2 2/5] vhost: fine grain userspace memory accessors
...++++++++----------
> 1 file changed, 77 insertions(+), 17 deletions(-)
>
> diff --git a/drivers/vhost/vhost.c b/drivers/vhost/vhost.c
> index 400aa78..29709e7 100644
> --- a/drivers/vhost/vhost.c
> +++ b/drivers/vhost/vhost.c
> @@ -869,6 +869,34 @@ static inline void __user *__vhost_get_user(struct vhost_virtqueue *vq,
> ret; \
> })
>
> +static inline int vhost_put_avail_event(struct vhost_virtqueue *vq)
> +{
> + return vhost_put_user(vq, cpu_to_vhost16(vq, vq->avail_idx),
> + vhost_avail_event(vq));
> +}
> +
> +static inline int vhost_put_u...
2017 Jan 06
2
[PATCH V4 net-next 1/3] vhost: better detection of available buffers
...rs/vhost/vhost.c
> +++ b/drivers/vhost/vhost.c
> @@ -2241,11 +2241,15 @@ bool vhost_vq_avail_empty(struct vhost_dev *dev, struct vhost_virtqueue *vq)
> __virtio16 avail_idx;
> int r;
>
> + if (vq->avail_idx != vq->last_avail_idx)
> + return false;
> +
> r = vhost_get_user(vq, avail_idx, &vq->avail->idx);
> - if (r)
> + if (unlikely(r))
> return false;
> + vq->avail_idx = vhost16_to_cpu(vq, avail_idx);
>
> - return vhost16_to_cpu(vq, avail_idx) == vq->avail_idx;
> + return vq->avail_idx == vq->last_avail_idx;
> }...
2017 Jan 06
2
[PATCH V4 net-next 1/3] vhost: better detection of available buffers
...rs/vhost/vhost.c
> +++ b/drivers/vhost/vhost.c
> @@ -2241,11 +2241,15 @@ bool vhost_vq_avail_empty(struct vhost_dev *dev, struct vhost_virtqueue *vq)
> __virtio16 avail_idx;
> int r;
>
> + if (vq->avail_idx != vq->last_avail_idx)
> + return false;
> +
> r = vhost_get_user(vq, avail_idx, &vq->avail->idx);
> - if (r)
> + if (unlikely(r))
> return false;
> + vq->avail_idx = vhost16_to_cpu(vq, avail_idx);
>
> - return vhost16_to_cpu(vq, avail_idx) == vq->avail_idx;
> + return vq->avail_idx == vq->last_avail_idx;
> }...
2019 Mar 06
0
[RFC PATCH V2 2/5] vhost: fine grain userspace memory accessors
...+++++++++++++++++++++++++++++++++++++++++----------
1 file changed, 77 insertions(+), 17 deletions(-)
diff --git a/drivers/vhost/vhost.c b/drivers/vhost/vhost.c
index 400aa78..29709e7 100644
--- a/drivers/vhost/vhost.c
+++ b/drivers/vhost/vhost.c
@@ -869,6 +869,34 @@ static inline void __user *__vhost_get_user(struct vhost_virtqueue *vq,
ret; \
})
+static inline int vhost_put_avail_event(struct vhost_virtqueue *vq)
+{
+ return vhost_put_user(vq, cpu_to_vhost16(vq, vq->avail_idx),
+ vhost_avail_event(vq));
+}
+
+static inline int vhost_put_used(struct vhost_virtqueue *vq,
+ struct vr...
2019 Mar 07
0
[RFC PATCH V2 2/5] vhost: fine grain userspace memory accessors
...1 file changed, 77 insertions(+), 17 deletions(-)
>>
>> diff --git a/drivers/vhost/vhost.c b/drivers/vhost/vhost.c
>> index 400aa78..29709e7 100644
>> --- a/drivers/vhost/vhost.c
>> +++ b/drivers/vhost/vhost.c
>> @@ -869,6 +869,34 @@ static inline void __user *__vhost_get_user(struct vhost_virtqueue *vq,
>> ret; \
>> })
>>
>> +static inline int vhost_put_avail_event(struct vhost_virtqueue *vq)
>> +{
>> + return vhost_put_user(vq, cpu_to_vhost16(vq, vq->avail_idx),
>> + vhost_avail_event(vq));
>> +}
>> +...
2017 Feb 07
0
[PATCH] vhost: try avoiding avail index access when getting descriptor
....c
index 9f11838..bffbeeb 100644
--- a/drivers/vhost/vhost.c
+++ b/drivers/vhost/vhost.c
@@ -1932,25 +1932,32 @@ int vhost_get_vq_desc(struct vhost_virtqueue *vq,
/* Check it isn't doing very strange things with descriptor numbers. */
last_avail_idx = vq->last_avail_idx;
- if (unlikely(vhost_get_user(vq, avail_idx, &vq->avail->idx))) {
- vq_err(vq, "Failed to access avail idx at %p\n",
- &vq->avail->idx);
- return -EFAULT;
- }
- vq->avail_idx = vhost16_to_cpu(vq, avail_idx);
- if (unlikely((u16)(vq->avail_idx - last_avail_idx) > vq->num))...
2018 Jun 30
0
[PATCH net-next v3 1/4] net: vhost: lock the vqs one by one
...t; d->nvqs; ++i)
+ for (i = 0; i < d->nvqs; ++i) {
+ mutex_lock(&d->vqs[i]->mutex);
__vhost_vq_meta_reset(d->vqs[i]);
+ mutex_unlock(&d->vqs[i]->mutex);
+ }
}
static void vhost_vq_reset(struct vhost_dev *dev,
@@ -887,20 +890,6 @@ static inline void __user *__vhost_get_user(struct vhost_virtqueue *vq,
#define vhost_get_used(vq, x, ptr) \
vhost_get_user(vq, x, ptr, VHOST_ADDR_USED)
-static void vhost_dev_lock_vqs(struct vhost_dev *d)
-{
- int i = 0;
- for (i = 0; i < d->nvqs; ++i)
- mutex_lock_nested(&d->vqs[i]->mutex, i);
-}
-
-static void vhos...
2018 Jul 21
0
[PATCH net-next v6 1/4] net: vhost: lock the vqs one by one
...t; d->nvqs; ++i)
+ for (i = 0; i < d->nvqs; ++i) {
+ mutex_lock(&d->vqs[i]->mutex);
__vhost_vq_meta_reset(d->vqs[i]);
+ mutex_unlock(&d->vqs[i]->mutex);
+ }
}
static void vhost_vq_reset(struct vhost_dev *dev,
@@ -890,20 +893,6 @@ static inline void __user *__vhost_get_user(struct vhost_virtqueue *vq,
#define vhost_get_used(vq, x, ptr) \
vhost_get_user(vq, x, ptr, VHOST_ADDR_USED)
-static void vhost_dev_lock_vqs(struct vhost_dev *d)
-{
- int i = 0;
- for (i = 0; i < d->nvqs; ++i)
- mutex_lock_nested(&d->vqs[i]->mutex, i);
-}
-
-static void vhos...
2018 Sep 25
0
[REBASE PATCH net-next v9 1/4] net: vhost: lock the vqs one by one
...t; d->nvqs; ++i)
+ for (i = 0; i < d->nvqs; ++i) {
+ mutex_lock(&d->vqs[i]->mutex);
__vhost_vq_meta_reset(d->vqs[i]);
+ mutex_unlock(&d->vqs[i]->mutex);
+ }
}
static void vhost_vq_reset(struct vhost_dev *dev,
@@ -891,20 +894,6 @@ static inline void __user *__vhost_get_user(struct vhost_virtqueue *vq,
#define vhost_get_used(vq, x, ptr) \
vhost_get_user(vq, x, ptr, VHOST_ADDR_USED)
-static void vhost_dev_lock_vqs(struct vhost_dev *d)
-{
- int i = 0;
- for (i = 0; i < d->nvqs; ++i)
- mutex_lock_nested(&d->vqs[i]->mutex, i);
-}
-
-static void vhos...
2018 Dec 12
0
[PATCH net V2 3/4] Revert "net: vhost: lock the vqs one by one"
...t; d->nvqs; ++i) {
- mutex_lock(&d->vqs[i]->mutex);
+ for (i = 0; i < d->nvqs; ++i)
__vhost_vq_meta_reset(d->vqs[i]);
- mutex_unlock(&d->vqs[i]->mutex);
- }
}
static void vhost_vq_reset(struct vhost_dev *dev,
@@ -895,6 +892,20 @@ static inline void __user *__vhost_get_user(struct vhost_virtqueue *vq,
#define vhost_get_used(vq, x, ptr) \
vhost_get_user(vq, x, ptr, VHOST_ADDR_USED)
+static void vhost_dev_lock_vqs(struct vhost_dev *d)
+{
+ int i = 0;
+ for (i = 0; i < d->nvqs; ++i)
+ mutex_lock_nested(&d->vqs[i]->mutex, i);
+}
+
+static void vhos...
2017 Feb 07
0
[PATCH] vhost: try avoiding avail index access when getting descriptor
....c
index 9f11838..bffbeeb 100644
--- a/drivers/vhost/vhost.c
+++ b/drivers/vhost/vhost.c
@@ -1932,25 +1932,32 @@ int vhost_get_vq_desc(struct vhost_virtqueue *vq,
/* Check it isn't doing very strange things with descriptor numbers. */
last_avail_idx = vq->last_avail_idx;
- if (unlikely(vhost_get_user(vq, avail_idx, &vq->avail->idx))) {
- vq_err(vq, "Failed to access avail idx at %p\n",
- &vq->avail->idx);
- return -EFAULT;
- }
- vq->avail_idx = vhost16_to_cpu(vq, avail_idx);
- if (unlikely((u16)(vq->avail_idx - last_avail_idx) > vq->num))...