Displaying 15 results from an estimated 15 matches for "iotlb_translate".
2023 Mar 21
1
[PATCH v3 4/8] vringh: support VA with iotlb
...a/drivers/vhost/vringh.c
+++ b/drivers/vhost/vringh.c
@@ -1094,10 +1094,18 @@ EXPORT_SYMBOL(vringh_need_notify_kern);
#if IS_REACHABLE(CONFIG_VHOST_IOTLB)
+struct iotlb_vec {
+ union {
+ struct iovec *iovec;
+ struct bio_vec *bvec;
+ } iov;
+ size_t count;
+ bool is_iovec;
+};
+
static int iotlb_translate(const struct vringh *vrh,
u64 addr, u64 len, u64 *translated,
- struct bio_vec iov[],
- int iov_size, u32 perm)
+ struct iotlb_vec *ivec, u32 perm)
{
struct vhost_iotlb_map *map;
struct vhost_iotlb *iotlb = vrh->iotlb;
@@ -1107,9 +1115,9 @@ static int iotlb_translate(c...
2023 Mar 23
1
[PATCH v3 4/8] vringh: support VA with iotlb
...b_vec {
> + union {
> + struct iovec *iovec;
> + struct bio_vec *bvec;
> + } iov;
> + size_t count;
> + bool is_iovec;
I wonder if this is needed (if vringh is passed to every iotlb_vec helper).
> +};
> +
> static int iotlb_translate(const struct vringh *vrh,
> u64 addr, u64 len, u64 *translated,
> - struct bio_vec iov[],
> - int iov_size, u32 perm)
> + struct iotlb_vec *ivec, u32 perm)
> {
> struct v...
2023 Mar 21
5
[PATCH v3 0/8] vdpa_sim: add support for user VA
This series adds support for the use of user virtual addresses in the
vDPA simulator devices.
The main reason for this change is to lift the pinning of all guest memory.
Especially with virtio devices implemented in software.
The next step would be to generalize the code in vdpa-sim to allow the
implementation of in-kernel software devices. Similar to vhost, but using vDPA
so we can reuse the
2023 Jan 30
2
[PATCH 22/23] vring: use bvec_set_page to initialize a bvec
...h at lst.de>
---
drivers/vhost/vringh.c | 5 ++---
1 file changed, 2 insertions(+), 3 deletions(-)
diff --git a/drivers/vhost/vringh.c b/drivers/vhost/vringh.c
index 33eb941fcf1546..a1e27da544814a 100644
--- a/drivers/vhost/vringh.c
+++ b/drivers/vhost/vringh.c
@@ -1126,9 +1126,8 @@ static int iotlb_translate(const struct vringh *vrh,
size = map->size - addr + map->start;
pa = map->addr + addr - map->start;
pfn = pa >> PAGE_SHIFT;
- iov[ret].bv_page = pfn_to_page(pfn);
- iov[ret].bv_len = min(len - s, size);
- iov[ret].bv_offset = pa & (PAGE_SIZE - 1);
+ bvec_set_page(...
2023 Apr 04
9
[PATCH v5 0/9] vdpa_sim: add support for user VA
This series adds support for the use of user virtual addresses in the
vDPA simulator devices.
The main reason for this change is to lift the pinning of all guest memory.
Especially with virtio devices implemented in software.
The next step would be to generalize the code in vdpa-sim to allow the
implementation of in-kernel software devices. Similar to vhost, but using vDPA
so we can reuse the
2020 Apr 01
2
[PATCH] virtio/test: fix up after IOTLB changes
...<linux/vhost_iotlb.h>
+#endif
#include <uapi/linux/virtio_config.h>
static __printf(1,2) __cold void vringh_bad(const char *fmt, ...)
@@ -1059,6 +1061,8 @@ int vringh_need_notify_kern(struct vringh *vrh)
}
EXPORT_SYMBOL(vringh_need_notify_kern);
+#ifdef VHOST_IOTLB
+
static int iotlb_translate(const struct vringh *vrh,
u64 addr, u64 len, struct bio_vec iov[],
int iov_size, u32 perm)
@@ -1416,5 +1420,6 @@ int vringh_need_notify_iotlb(struct vringh *vrh)
}
EXPORT_SYMBOL(vringh_need_notify_iotlb);
+#endif
MODULE_LICENSE("GPL");
diff --git a/include/linux/vring...
2020 Apr 01
2
[PATCH] virtio/test: fix up after IOTLB changes
...<linux/vhost_iotlb.h>
+#endif
#include <uapi/linux/virtio_config.h>
static __printf(1,2) __cold void vringh_bad(const char *fmt, ...)
@@ -1059,6 +1061,8 @@ int vringh_need_notify_kern(struct vringh *vrh)
}
EXPORT_SYMBOL(vringh_need_notify_kern);
+#ifdef VHOST_IOTLB
+
static int iotlb_translate(const struct vringh *vrh,
u64 addr, u64 len, struct bio_vec iov[],
int iov_size, u32 perm)
@@ -1416,5 +1420,6 @@ int vringh_need_notify_iotlb(struct vringh *vrh)
}
EXPORT_SYMBOL(vringh_need_notify_iotlb);
+#endif
MODULE_LICENSE("GPL");
diff --git a/include/linux/vring...
2020 Apr 02
1
[PATCH] virtio/test: fix up after IOTLB changes
...nfig.h>
> > static __printf(1,2) __cold void vringh_bad(const char *fmt, ...)
> > @@ -1059,6 +1061,8 @@ int vringh_need_notify_kern(struct vringh *vrh)
> > }
> > EXPORT_SYMBOL(vringh_need_notify_kern);
> > +#ifdef VHOST_IOTLB
> > +
> > static int iotlb_translate(const struct vringh *vrh,
> > u64 addr, u64 len, struct bio_vec iov[],
> > int iov_size, u32 perm)
> > @@ -1416,5 +1420,6 @@ int vringh_need_notify_iotlb(struct vringh *vrh)
> > }
> > EXPORT_SYMBOL(vringh_need_notify_iotlb);
> > +#endif
> &...
2023 Mar 02
8
[PATCH v2 0/8] vdpa_sim: add support for user VA
v2:
- rebased on Linus' tree, commit ae3419fbac84 ("vc_screen: don't clobber
return value in vcs_read")
- removed `struct task_struct *owner` param (unused for now, maybe
?useful to support cgroups) [Jason]
- add unbind_mm callback [Jason]
- call the new unbind_mm callback during the release [Jason]
- avoid to call bind_mm callback after the reset, since the device
?is not
2020 Apr 02
1
[PATCH v2] virtio/test: fix up after IOTLB changes
...tlb.h>
+#endif
#include <uapi/linux/virtio_config.h>
static __printf(1,2) __cold void vringh_bad(const char *fmt, ...)
@@ -1059,6 +1061,8 @@ int vringh_need_notify_kern(struct vringh *vrh)
}
EXPORT_SYMBOL(vringh_need_notify_kern);
+#if IS_REACHABLE(CONFIG_VHOST_IOTLB)
+
static int iotlb_translate(const struct vringh *vrh,
u64 addr, u64 len, struct bio_vec iov[],
int iov_size, u32 perm)
@@ -1416,5 +1420,6 @@ int vringh_need_notify_iotlb(struct vringh *vrh)
}
EXPORT_SYMBOL(vringh_need_notify_iotlb);
+#endif
MODULE_LICENSE("GPL");
diff --git a/include/linux/vring...
2020 Apr 02
0
[PATCH] virtio/test: fix up after IOTLB changes
...api/linux/virtio_config.h>
>
> static __printf(1,2) __cold void vringh_bad(const char *fmt, ...)
> @@ -1059,6 +1061,8 @@ int vringh_need_notify_kern(struct vringh *vrh)
> }
> EXPORT_SYMBOL(vringh_need_notify_kern);
>
> +#ifdef VHOST_IOTLB
> +
> static int iotlb_translate(const struct vringh *vrh,
> u64 addr, u64 len, struct bio_vec iov[],
> int iov_size, u32 perm)
> @@ -1416,5 +1420,6 @@ int vringh_need_notify_iotlb(struct vringh *vrh)
> }
> EXPORT_SYMBOL(vringh_need_notify_iotlb);
>
> +#endif
>
> MODULE_LICENS...
2020 Apr 03
0
[PATCH v3 1/2] virtio/test: fix up after IOTLB changes
...tlb.h>
+#endif
#include <uapi/linux/virtio_config.h>
static __printf(1,2) __cold void vringh_bad(const char *fmt, ...)
@@ -1059,6 +1061,8 @@ int vringh_need_notify_kern(struct vringh *vrh)
}
EXPORT_SYMBOL(vringh_need_notify_kern);
+#if IS_REACHABLE(CONFIG_VHOST_IOTLB)
+
static int iotlb_translate(const struct vringh *vrh,
u64 addr, u64 len, struct bio_vec iov[],
int iov_size, u32 perm)
@@ -1416,5 +1420,6 @@ int vringh_need_notify_iotlb(struct vringh *vrh)
}
EXPORT_SYMBOL(vringh_need_notify_iotlb);
+#endif
MODULE_LICENSE("GPL");
diff --git a/include/linux/vring...
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
2020 Feb 20
9
[PATCH V3 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
2020 Feb 10
9
[PATCH V2 0/5] vDPA support
Hi all:
This is an updated version of kernel support for vDPA device. Various
changes were made based on the feedback since last verion. One major
change is to drop the sysfs API and leave the management interface for
future development, and introudce the incremental DMA bus
operations. Please see changelog for more information.
The work on vhost, IFCVF (intel VF driver for vDPA) and qemu is