Displaying 5 results from an estimated 5 matches for "vhost_vdpa_vm_op".
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vhost_vdpa_vm_ops
2020 May 29
1
[PATCH 4/6] vhost_vdpa: support doorbell mapping via mmap
...amp; PAGE_MASK,
> + notify.addr >> PAGE_SHIFT, PAGE_SIZE,
> + vma->vm_page_prot))
> + return VM_FAULT_SIGBUS;
> +
> + return VM_FAULT_NOPAGE;
> +}
> +
> +static const struct vm_operations_struct vhost_vdpa_vm_ops = {
> + .fault = vhost_vdpa_fault,
> +};
> +
> +static int vhost_vdpa_mmap(struct file *file, struct vm_area_struct *vma)
> +{
> + struct vhost_vdpa *v = vma->vm_file->private_data;
> + struct vdpa_device *vdpa = v->vdpa;
> + const struct vd...
2020 May 29
0
[PATCH 4/6] vhost_vdpa: support doorbell mapping via mmap
...vm_page_prot = pgprot_noncached(vma->vm_page_prot);
+ if (remap_pfn_range(vma, vmf->address & PAGE_MASK,
+ notify.addr >> PAGE_SHIFT, PAGE_SIZE,
+ vma->vm_page_prot))
+ return VM_FAULT_SIGBUS;
+
+ return VM_FAULT_NOPAGE;
+}
+
+static const struct vm_operations_struct vhost_vdpa_vm_ops = {
+ .fault = vhost_vdpa_fault,
+};
+
+static int vhost_vdpa_mmap(struct file *file, struct vm_area_struct *vma)
+{
+ struct vhost_vdpa *v = vma->vm_file->private_data;
+ struct vdpa_device *vdpa = v->vdpa;
+ const struct vdpa_config_ops *ops = vdpa->config;
+ struct vdpa_notification...
2020 May 29
0
[PATCH 4/6] vhost_vdpa: support doorbell mapping via mmap
...amp; PAGE_MASK,
>> +??????????????? notify.addr >> PAGE_SHIFT, PAGE_SIZE,
>> +??????????????? vma->vm_page_prot))
>> +??????? return VM_FAULT_SIGBUS;
>> +
>> +??? return VM_FAULT_NOPAGE;
>> +}
>> +
>> +static const struct vm_operations_struct vhost_vdpa_vm_ops = {
>> +??? .fault = vhost_vdpa_fault,
>> +};
>> +
>> +static int vhost_vdpa_mmap(struct file *file, struct vm_area_struct
>> *vma)
>> +{
>> +??? struct vhost_vdpa *v = vma->vm_file->private_data;
>> +??? struct vdpa_device *vdpa = v->vdpa;...
2020 May 29
12
[PATCH 0/6] vDPA: doorbell mapping
Hi all:
This series introduce basic functionality of doorbell mapping support
for vhost-vDPA. Userspace program may use mmap() to map a the doorbell
of a specific virtqueue into its address space. This is help to reudce
the syscall or vmexit overhead.
A new vdpa_config_ops was introduced to report the location of the
doorbell, vhost_vdpa may then choose to map the doorbell when:
- The doorbell
2020 May 29
12
[PATCH 0/6] vDPA: doorbell mapping
Hi all:
This series introduce basic functionality of doorbell mapping support
for vhost-vDPA. Userspace program may use mmap() to map a the doorbell
of a specific virtqueue into its address space. This is help to reudce
the syscall or vmexit overhead.
A new vdpa_config_ops was introduced to report the location of the
doorbell, vhost_vdpa may then choose to map the doorbell when:
- The doorbell