Displaying 13 results from an estimated 13 matches for "vpci_field".
2019 Nov 22
0
[RFC 13/13] iommu/virtio: Add topology description to
..._topology {
+ union {
+ struct virtio_iommu_topo_head head;
+ struct virtio_iommu_topo_pci_range pci;
+ struct virtio_iommu_topo_endpoint ep;
+ };
+ /* Index into viommu_spec->topology */
+ struct list_head list;
+};
+
+static LIST_HEAD(viommus);
+static DEFINE_MUTEX(viommus_lock);
+
+#define VPCI_FIELD(field) offsetof(struct virtio_pci_cap, field)
+
+static inline int viommu_find_capability(struct pci_dev *dev, u8 cfg_type,
+ struct viommu_cap_config *cap)
+{
+ int pos;
+ u8 bar;
+
+ for (pos = pci_find_capability(dev, PCI_CAP_ID_VNDR);
+ pos > 0;
+ pos = pci_find_next_capabilit...
2020 Aug 21
0
[PATCH v3 5/6] iommu/virtio: Support topology description in config space
...list_for_each_entry_safe(ep, next, &endpoints, list)
+ /* Moves ep to the helpers list */
+ virt_topo_add_endpoint(ep);
+ virt_topo_add_iommu(viommu);
+
+ return 0;
+err_free:
+ list_for_each_entry_safe(ep, next, &endpoints, list)
+ kfree(ep);
+ kfree(viommu);
+ return ret;
+}
+
+#define VPCI_FIELD(field) offsetof(struct virtio_pci_cap, field)
+
+static inline int viommu_pci_find_capability(struct pci_dev *dev, u8 cfg_type,
+ struct viommu_cap_config *cap)
+{
+ int pos;
+ u8 bar;
+
+ for (pos = pci_find_capability(dev, PCI_CAP_ID_VNDR);
+ pos > 0;
+ pos = pci_find_next_c...
2020 Sep 04
1
[PATCH v3 5/6] iommu/virtio: Support topology description in config space
.../* Moves ep to the helpers list */
> + virt_topo_add_endpoint(ep);
> + virt_topo_add_iommu(viommu);
> +
> + return 0;
> +err_free:
> + list_for_each_entry_safe(ep, next, &endpoints, list)
> + kfree(ep);
> + kfree(viommu);
> + return ret;
> +}
> +
> +#define VPCI_FIELD(field) offsetof(struct virtio_pci_cap, field)
> +
> +static inline int viommu_pci_find_capability(struct pci_dev *dev, u8 cfg_type,
> + struct viommu_cap_config *cap)
not sure the inline is useful here
> +{
> + int pos;
> + u8 bar;
> +
> + for (pos = pci_find_capabi...
2019 Nov 22
1
[RFC 13/13] iommu/virtio: Add topology description to
...head;
> + struct virtio_iommu_topo_pci_range pci;
> + struct virtio_iommu_topo_endpoint ep;
> + };
> + /* Index into viommu_spec->topology */
> + struct list_head list;
> +};
> +
> +static LIST_HEAD(viommus);
> +static DEFINE_MUTEX(viommus_lock);
> +
> +#define VPCI_FIELD(field) offsetof(struct virtio_pci_cap, field)
> +
> +static inline int viommu_find_capability(struct pci_dev *dev, u8 cfg_type,
> + struct viommu_cap_config *cap)
> +{
> + int pos;
> + u8 bar;
> +
> + for (pos = pci_find_capability(dev, PCI_CAP_ID_VNDR);
> + pos...
2020 Mar 01
0
[PATCH v2 1/3] iommu/virtio: Add topology description to virtio-iommu config space
...> + struct iommu_ops *ops;
> + struct list_head list;
> + size_t num_items;
> + /* The config array of length num_items follows */
> + union viommu_topo_cfg cfg[];
> +};
> +
> +static LIST_HEAD(viommus);
> +static DEFINE_MUTEX(viommus_lock);
> +
> +#define VPCI_FIELD(field) offsetof(struct virtio_pci_cap, field)
> +
> +static inline int viommu_pci_find_capability(struct pci_dev *dev, u8 cfg_type,
> + struct viommu_cap_config *cap)
> +{
> + int pos;
> + u8 bar;
> +
> + for (pos = pci_find_capability(dev, PCI_CAP_ID_VNDR);
> +...
2020 Mar 05
2
[PATCH v2 1/3] iommu/virtio: Add topology description to virtio-iommu config space
...> + struct iommu_ops *ops;
> + struct list_head list;
> + size_t num_items;
> + /* The config array of length num_items follows */
> + union viommu_topo_cfg cfg[];
> +};
> +
> +static LIST_HEAD(viommus);
> +static DEFINE_MUTEX(viommus_lock);
> +
> +#define VPCI_FIELD(field) offsetof(struct virtio_pci_cap, field)
> +
> +static inline int viommu_pci_find_capability(struct pci_dev *dev, u8 cfg_type,
> + struct viommu_cap_config *cap)
> +{
> + int pos;
> + u8 bar;
> +
> + for (pos = pci_find_capability(dev, PCI_CAP_ID_VNDR);
> +...
2020 Mar 05
2
[PATCH v2 1/3] iommu/virtio: Add topology description to virtio-iommu config space
...> + struct iommu_ops *ops;
> + struct list_head list;
> + size_t num_items;
> + /* The config array of length num_items follows */
> + union viommu_topo_cfg cfg[];
> +};
> +
> +static LIST_HEAD(viommus);
> +static DEFINE_MUTEX(viommus_lock);
> +
> +#define VPCI_FIELD(field) offsetof(struct virtio_pci_cap, field)
> +
> +static inline int viommu_pci_find_capability(struct pci_dev *dev, u8 cfg_type,
> + struct viommu_cap_config *cap)
> +{
> + int pos;
> + u8 bar;
> +
> + for (pos = pci_find_capability(dev, PCI_CAP_ID_VNDR);
> +...
2020 Apr 21
1
[PATCH v2 1/3] iommu/virtio: Add topology description to virtio-iommu config space
...nly topology info is required, it makes the enumeration process
much simpler.
Thanks
Kevin
> + /* The config array of length num_items follows */
> + union viommu_topo_cfg cfg[];
> +};
> +
> +static LIST_HEAD(viommus);
> +static DEFINE_MUTEX(viommus_lock);
> +
> +#define VPCI_FIELD(field) offsetof(struct virtio_pci_cap, field)
> +
> +static inline int viommu_pci_find_capability(struct pci_dev *dev, u8 cfg_type,
> + struct viommu_cap_config *cap)
> +{
> + int pos;
> + u8 bar;
> +
> + for (pos = pci_find_capability(dev, PCI_CAP_ID_VNDR);
> +...
2020 Feb 14
5
[PATCH 0/3] virtio-iommu on non-devicetree platforms
Add topology description to the virtio-iommu driver and enable x86
platforms. Since the RFC [1] I've mostly given up on ACPI tables, since
the internal discussions seem to have reached a dead end. The built-in
topology description presented here isn't ideal, but it is simple to
implement and doesn't impose a dependency on ACPI or device-tree, which
can be beneficial to lightweight
2019 Nov 22
16
[RFC 00/13] virtio-iommu on non-devicetree platforms
I'm seeking feedback on multi-platform support for virtio-iommu. At the
moment only devicetree (DT) is supported and we don't have a pleasant
solution for other platforms. Once we figure out the topology
description, x86 support is trivial.
Since the IOMMU manages memory accesses from other devices, the guest
kernel needs to initialize the IOMMU before endpoints start issuing DMA.
2019 Nov 22
16
[RFC 00/13] virtio-iommu on non-devicetree platforms
I'm seeking feedback on multi-platform support for virtio-iommu. At the
moment only devicetree (DT) is supported and we don't have a pleasant
solution for other platforms. Once we figure out the topology
description, x86 support is trivial.
Since the IOMMU manages memory accesses from other devices, the guest
kernel needs to initialize the IOMMU before endpoints start issuing DMA.
2020 Aug 21
17
[PATCH v3 0/6] Add virtio-iommu built-in topology
Add a topology description to the virtio-iommu driver and enable x86
platforms.
Since [v2] we have made some progress on adding ACPI support for
virtio-iommu, which is the preferred boot method on x86. It will be a
new vendor-agnostic table describing para-virtual topologies in a
minimal format. However some platforms don't use either ACPI or DT for
booting (for example microvm), and will
2020 Aug 21
17
[PATCH v3 0/6] Add virtio-iommu built-in topology
Add a topology description to the virtio-iommu driver and enable x86
platforms.
Since [v2] we have made some progress on adding ACPI support for
virtio-iommu, which is the preferred boot method on x86. It will be a
new vendor-agnostic table describing para-virtual topologies in a
minimal format. However some platforms don't use either ACPI or DT for
booting (for example microvm), and will