Displaying 20 results from an estimated 96 matches for "nregions".
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regions
2015 Jun 24
0
[PATCH RFC] vhost: add ioctl to query nregions upper limit
...e/uapi/linux/vhost.h
> @@ -80,7 +80,7 @@ struct vhost_memory {
> * Allows subsequent call to VHOST_OWNER_SET to succeed. */
> #define VHOST_RESET_OWNER _IO(VHOST_VIRTIO, 0x02)
>
> -/* Set up/modify memory layout */
> +/* Set up/modify memory layout: see also VHOST_GET_MEM_MAX_NREGIONS below. */
> #define VHOST_SET_MEM_TABLE _IOW(VHOST_VIRTIO, 0x03, struct vhost_memory)
>
> /* Write logging setup. */
> @@ -127,6 +127,21 @@ struct vhost_memory {
> /* Set eventfd to signal an error */
> #define VHOST_SET_VRING_ERR _IOW(VHOST_VIRTIO, 0x22, struct vhost_vring_...
2015 Jun 24
2
[PATCH RFC] vhost: add ioctl to query nregions upper limit
...api/linux/vhost.h
+++ b/include/uapi/linux/vhost.h
@@ -80,7 +80,7 @@ struct vhost_memory {
* Allows subsequent call to VHOST_OWNER_SET to succeed. */
#define VHOST_RESET_OWNER _IO(VHOST_VIRTIO, 0x02)
-/* Set up/modify memory layout */
+/* Set up/modify memory layout: see also VHOST_GET_MEM_MAX_NREGIONS below. */
#define VHOST_SET_MEM_TABLE _IOW(VHOST_VIRTIO, 0x03, struct vhost_memory)
/* Write logging setup. */
@@ -127,6 +127,21 @@ struct vhost_memory {
/* Set eventfd to signal an error */
#define VHOST_SET_VRING_ERR _IOW(VHOST_VIRTIO, 0x22, struct vhost_vring_file)
+/* Query upper limit...
2015 Jun 24
2
[PATCH RFC] vhost: add ioctl to query nregions upper limit
...api/linux/vhost.h
+++ b/include/uapi/linux/vhost.h
@@ -80,7 +80,7 @@ struct vhost_memory {
* Allows subsequent call to VHOST_OWNER_SET to succeed. */
#define VHOST_RESET_OWNER _IO(VHOST_VIRTIO, 0x02)
-/* Set up/modify memory layout */
+/* Set up/modify memory layout: see also VHOST_GET_MEM_MAX_NREGIONS below. */
#define VHOST_SET_MEM_TABLE _IOW(VHOST_VIRTIO, 0x03, struct vhost_memory)
/* Write logging setup. */
@@ -127,6 +127,21 @@ struct vhost_memory {
/* Set eventfd to signal an error */
#define VHOST_SET_VRING_ERR _IOW(VHOST_VIRTIO, 0x22, struct vhost_vring_file)
+/* Query upper limit...
2015 Jun 24
0
[PATCH RFC] vhost: add ioctl to query nregions upper limit
...vhost_memory {
> > > * Allows subsequent call to VHOST_OWNER_SET to succeed. */
> > > #define VHOST_RESET_OWNER _IO(VHOST_VIRTIO, 0x02)
> > >
> > > -/* Set up/modify memory layout */
> > > +/* Set up/modify memory layout: see also VHOST_GET_MEM_MAX_NREGIONS below. */
> > > #define VHOST_SET_MEM_TABLE _IOW(VHOST_VIRTIO, 0x03, struct vhost_memory)
> > >
> > > /* Write logging setup. */
> > > @@ -127,6 +127,21 @@ struct vhost_memory {
> > > /* Set eventfd to signal an error */
> > > #define VHOS...
2015 Jun 24
2
[PATCH RFC] vhost: add ioctl to query nregions upper limit
...@@ -80,7 +80,7 @@ struct vhost_memory {
> > * Allows subsequent call to VHOST_OWNER_SET to succeed. */
> > #define VHOST_RESET_OWNER _IO(VHOST_VIRTIO, 0x02)
> >
> > -/* Set up/modify memory layout */
> > +/* Set up/modify memory layout: see also VHOST_GET_MEM_MAX_NREGIONS below. */
> > #define VHOST_SET_MEM_TABLE _IOW(VHOST_VIRTIO, 0x03, struct vhost_memory)
> >
> > /* Write logging setup. */
> > @@ -127,6 +127,21 @@ struct vhost_memory {
> > /* Set eventfd to signal an error */
> > #define VHOST_SET_VRING_ERR _IOW(VHOST_VIR...
2015 Jun 24
2
[PATCH RFC] vhost: add ioctl to query nregions upper limit
...@@ -80,7 +80,7 @@ struct vhost_memory {
> > * Allows subsequent call to VHOST_OWNER_SET to succeed. */
> > #define VHOST_RESET_OWNER _IO(VHOST_VIRTIO, 0x02)
> >
> > -/* Set up/modify memory layout */
> > +/* Set up/modify memory layout: see also VHOST_GET_MEM_MAX_NREGIONS below. */
> > #define VHOST_SET_MEM_TABLE _IOW(VHOST_VIRTIO, 0x03, struct vhost_memory)
> >
> > /* Write logging setup. */
> > @@ -127,6 +127,21 @@ struct vhost_memory {
> > /* Set eventfd to signal an error */
> > #define VHOST_SET_VRING_ERR _IOW(VHOST_VIR...
2015 Jun 24
1
[PATCH RFC] vhost: add ioctl to query nregions upper limit
...> > * Allows subsequent call to VHOST_OWNER_SET to succeed. */
> > > > #define VHOST_RESET_OWNER _IO(VHOST_VIRTIO, 0x02)
> > > >
> > > > -/* Set up/modify memory layout */
> > > > +/* Set up/modify memory layout: see also VHOST_GET_MEM_MAX_NREGIONS below. */
> > > > #define VHOST_SET_MEM_TABLE _IOW(VHOST_VIRTIO, 0x03, struct vhost_memory)
> > > >
> > > > /* Write logging setup. */
> > > > @@ -127,6 +127,21 @@ struct vhost_memory {
> > > > /* Set eventfd to signal an error */
>...
2015 Jun 24
1
[PATCH RFC] vhost: add ioctl to query nregions upper limit
...> > * Allows subsequent call to VHOST_OWNER_SET to succeed. */
> > > > #define VHOST_RESET_OWNER _IO(VHOST_VIRTIO, 0x02)
> > > >
> > > > -/* Set up/modify memory layout */
> > > > +/* Set up/modify memory layout: see also VHOST_GET_MEM_MAX_NREGIONS below. */
> > > > #define VHOST_SET_MEM_TABLE _IOW(VHOST_VIRTIO, 0x03, struct vhost_memory)
> > > >
> > > > /* Write logging setup. */
> > > > @@ -127,6 +127,21 @@ struct vhost_memory {
> > > > /* Set eventfd to signal an error */
>...
2016 Jan 18
2
[PATCH RFC] vhost: convert pre sorted vhost memory array to interval tree
...aller should have device mutex */
-void vhost_dev_reset_owner(struct vhost_dev *dev, struct vhost_memory *memory)
+void vhost_dev_reset_owner(struct vhost_dev *dev, struct vhost_umem *umem)
{
int i;
vhost_dev_cleanup(dev, true);
/* Restore memory to default empty mapping. */
- memory->nregions = 0;
- dev->memory = memory;
+ INIT_LIST_HEAD(&umem->umem_list);
+ dev->umem = umem;
/* We don't need VQ locks below since vhost_dev_cleanup makes sure
* VQs aren't running.
*/
for (i = 0; i < dev->nvqs; ++i)
- dev->vqs[i]->memory = memory;
+ dev->vqs...
2016 Jan 18
2
[PATCH RFC] vhost: convert pre sorted vhost memory array to interval tree
...aller should have device mutex */
-void vhost_dev_reset_owner(struct vhost_dev *dev, struct vhost_memory *memory)
+void vhost_dev_reset_owner(struct vhost_dev *dev, struct vhost_umem *umem)
{
int i;
vhost_dev_cleanup(dev, true);
/* Restore memory to default empty mapping. */
- memory->nregions = 0;
- dev->memory = memory;
+ INIT_LIST_HEAD(&umem->umem_list);
+ dev->umem = umem;
/* We don't need VQ locks below since vhost_dev_cleanup makes sure
* VQs aren't running.
*/
for (i = 0; i < dev->nvqs; ++i)
- dev->vqs[i]->memory = memory;
+ dev->vqs...
2016 Mar 25
0
[RFC PATCH V2 1/2] vhost: convert pre sorted vhost memory array to interval tree
...aller should have device mutex */
-void vhost_dev_reset_owner(struct vhost_dev *dev, struct vhost_memory *memory)
+void vhost_dev_reset_owner(struct vhost_dev *dev, struct vhost_umem *umem)
{
int i;
vhost_dev_cleanup(dev, true);
/* Restore memory to default empty mapping. */
- memory->nregions = 0;
- dev->memory = memory;
+ INIT_LIST_HEAD(&umem->umem_list);
+ dev->umem = umem;
/* We don't need VQ locks below since vhost_dev_cleanup makes sure
* VQs aren't running.
*/
for (i = 0; i < dev->nvqs; ++i)
- dev->vqs[i]->memory = memory;
+ dev->vqs...
2016 Jan 19
0
[PATCH RFC] vhost: convert pre sorted vhost memory array to interval tree
...vhost_dev_reset_owner(struct vhost_dev *dev, struct vhost_memory *memory)
> +void vhost_dev_reset_owner(struct vhost_dev *dev, struct vhost_umem *umem)
> {
> int i;
>
> vhost_dev_cleanup(dev, true);
>
> /* Restore memory to default empty mapping. */
> - memory->nregions = 0;
> - dev->memory = memory;
> + INIT_LIST_HEAD(&umem->umem_list);
> + dev->umem = umem;
> /* We don't need VQ locks below since vhost_dev_cleanup makes sure
> * VQs aren't running.
> */
> for (i = 0; i < dev->nvqs; ++i)
> - dev->vq...
2016 Apr 27
1
[RFC PATCH V2 1/2] vhost: convert pre sorted vhost memory array to interval tree
...vhost_dev_reset_owner(struct vhost_dev *dev, struct vhost_memory *memory)
> +void vhost_dev_reset_owner(struct vhost_dev *dev, struct vhost_umem *umem)
> {
> int i;
>
> vhost_dev_cleanup(dev, true);
>
> /* Restore memory to default empty mapping. */
> - memory->nregions = 0;
> - dev->memory = memory;
> + INIT_LIST_HEAD(&umem->umem_list);
> + dev->umem = umem;
> /* We don't need VQ locks below since vhost_dev_cleanup makes sure
> * VQs aren't running.
> */
> for (i = 0; i < dev->nvqs; ++i)
> - dev->vq...
2016 Apr 27
1
[RFC PATCH V2 1/2] vhost: convert pre sorted vhost memory array to interval tree
...vhost_dev_reset_owner(struct vhost_dev *dev, struct vhost_memory *memory)
> +void vhost_dev_reset_owner(struct vhost_dev *dev, struct vhost_umem *umem)
> {
> int i;
>
> vhost_dev_cleanup(dev, true);
>
> /* Restore memory to default empty mapping. */
> - memory->nregions = 0;
> - dev->memory = memory;
> + INIT_LIST_HEAD(&umem->umem_list);
> + dev->umem = umem;
> /* We don't need VQ locks below since vhost_dev_cleanup makes sure
> * VQs aren't running.
> */
> for (i = 0; i < dev->nvqs; ++i)
> - dev->vq...
2007 Apr 23
1
automating merging operations from multiple dataframes
Hi,
I have a set of dataframes names AINDSLIM, BINDSLIM, CINDSLIM ... NINDSLIM
In each dataframe I want to extract two variables, “pid” and “{w}region”,
where {w} means “a”, “b”, “c”, ...”n”
At the moment my code looks like:
> PidRegion <- data.frame(pid=XWAVEID$pid)
> this.region <- AINDSLIM[,c("pid", "aregion")]
> PidRegion <- merge(PidRegion,
2009 Dec 20
0
[PATCH 3/3] vhost: make default mapping empty by default
...= kmalloc(offsetof(struct vhost_memory, regions) +
- 2 * sizeof *memory->regions, GFP_KERNEL);
+ /* Restore memory to default empty mapping. */
+ memory = kmalloc(offsetof(struct vhost_memory, regions), GFP_KERNEL);
if (!memory)
return -ENOMEM;
vhost_dev_cleanup(dev);
- memory->nregions = 2;
- memory->regions[0].guest_phys_addr = 1;
- memory->regions[0].userspace_addr = 1;
- memory->regions[0].memory_size = ~0ULL;
- memory->regions[1].guest_phys_addr = 0;
- memory->regions[1].userspace_addr = 0;
- memory->regions[1].memory_size = 1;
+ memory->nregions = 0;
d...
2010 Apr 13
1
[PATCH] vhost-net: fix vq_memory_access_ok error checking
...ost.c
> +++ b/drivers/vhost/vhost.c
> @@ -235,6 +235,10 @@ static int vq_memory_access_ok(void __user *log_base, struct vhost_memory *mem,
> int log_all)
> {
> int i;
> +
> + if (!mem)
> + return 0;
> +
> for (i = 0; i < mem->nregions; ++i) {
> struct vhost_memory_region *m = mem->regions + i;
> unsigned long a = m->userspace_addr;
> --
> 1.7.0.2.280.gc6f05
2009 Dec 20
0
[PATCH 3/3] vhost: make default mapping empty by default
...= kmalloc(offsetof(struct vhost_memory, regions) +
- 2 * sizeof *memory->regions, GFP_KERNEL);
+ /* Restore memory to default empty mapping. */
+ memory = kmalloc(offsetof(struct vhost_memory, regions), GFP_KERNEL);
if (!memory)
return -ENOMEM;
vhost_dev_cleanup(dev);
- memory->nregions = 2;
- memory->regions[0].guest_phys_addr = 1;
- memory->regions[0].userspace_addr = 1;
- memory->regions[0].memory_size = ~0ULL;
- memory->regions[1].guest_phys_addr = 0;
- memory->regions[1].userspace_addr = 0;
- memory->regions[1].memory_size = 1;
+ memory->nregions = 0;
d...
2010 Apr 13
1
[PATCH] vhost-net: fix vq_memory_access_ok error checking
...ost.c
> +++ b/drivers/vhost/vhost.c
> @@ -235,6 +235,10 @@ static int vq_memory_access_ok(void __user *log_base, struct vhost_memory *mem,
> int log_all)
> {
> int i;
> +
> + if (!mem)
> + return 0;
> +
> for (i = 0; i < mem->nregions; ++i) {
> struct vhost_memory_region *m = mem->regions + i;
> unsigned long a = m->userspace_addr;
> --
> 1.7.0.2.280.gc6f05
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