Displaying 4 results from an estimated 4 matches for "viommu_parse_nod".
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viommu_parse_node
2020 Aug 21
0
[PATCH v3 5/6] iommu/virtio: Support topology description in config space
...iommu.h>
+
+#include "topology-helpers.h"
+
+struct viommu_cap_config {
+ u8 bar;
+ u32 length; /* structure size */
+ u32 offset; /* structure offset within the bar */
+};
+
+struct viommu_topo_header {
+ u8 type;
+ u8 reserved;
+ u16 length;
+};
+
+static struct virt_topo_endpoint *
+viommu_parse_node(void __iomem *buf, size_t len)
+{
+ int ret = -EINVAL;
+ union {
+ struct viommu_topo_header hdr;
+ struct virtio_iommu_topo_pci_range pci;
+ struct virtio_iommu_topo_mmio mmio;
+ } __iomem *cfg = buf;
+ struct virt_topo_endpoint *spec;
+
+ spec = kzalloc(sizeof(*spec), GFP_KERNEL);
+ if (!spec...
2020 Sep 04
1
[PATCH v3 5/6] iommu/virtio: Support topology description in config space
...viommu_cap_config {
> + u8 bar;
> + u32 length; /* structure size */
> + u32 offset; /* structure offset within the bar */
> +};
> +
> +struct viommu_topo_header {
> + u8 type;
> + u8 reserved;
> + u16 length;
> +};
> +
> +static struct virt_topo_endpoint *
> +viommu_parse_node(void __iomem *buf, size_t len)
> +{
> + int ret = -EINVAL;
> + union {
> + struct viommu_topo_header hdr;
> + struct virtio_iommu_topo_pci_range pci;
> + struct virtio_iommu_topo_mmio mmio;
> + } __iomem *cfg = buf;
> + struct virt_topo_endpoint *spec;
> +
> + spec...
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