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docs: Update url in kata vra document
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docs/design/kata-vra.md
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@ -43,7 +43,7 @@ and perform DMA transactions _anywhere_.
The second feature is ACS (Access Control Services), which controls which The second feature is ACS (Access Control Services), which controls which
devices are allowed to communicate with one another and thus avoids improper devices are allowed to communicate with one another and thus avoids improper
routing of packets irrespectively of whether IOMMU is enabled or not. routing of packets `irrespectively` of whether IOMMU is enabled or not.
When IOMMU is enabled, ACS is normally configured to force all PCI Express DMA When IOMMU is enabled, ACS is normally configured to force all PCI Express DMA
to go through the root complex so IOMMU can translate it, impacting performance to go through the root complex so IOMMU can translate it, impacting performance
@ -126,7 +126,7 @@ efficient P2P communication.
## PCI Express Virtual P2P Approval Capability ## PCI Express Virtual P2P Approval Capability
Most of the time, the PCI Express topology is flattened and obfuscated to ensure Most of the time, the PCI Express topology is flattened and obfuscated to ensure
easy migration of the VM image between different physical hardware topologies. easy migration of the VM image between different physical hardware `topologies`.
In Kata, we can configure the hypervisor to use PCI Express root ports to In Kata, we can configure the hypervisor to use PCI Express root ports to
hotplug the VFIO  devices one is passing through. A user can select how many PCI hotplug the VFIO  devices one is passing through. A user can select how many PCI
Express root ports to allocate depending on how many devices are passed through. Express root ports to allocate depending on how many devices are passed through.
@ -220,7 +220,7 @@ containers that he wants to run with Kata. The goal is to make such things as
transparent as possible, so we also introduced transparent as possible, so we also introduced
[CDI](https://github.com/container-orchestrated-devices/container-device-interface) [CDI](https://github.com/container-orchestrated-devices/container-device-interface)
(Container Device Interface) to Kata. CDI is a[ (Container Device Interface) to Kata. CDI is a[
specification](https://github.com/container-orchestrated-devices/container-device-interface/blob/master/SPEC.md) specification](https://github.com/container-orchestrated-devices/container-device-interface/blob/main/SPEC.md)
for container runtimes to support third-party devices. for container runtimes to support third-party devices.
As written before, we can provide a clique ID for the devices that belong As written before, we can provide a clique ID for the devices that belong
@ -300,7 +300,7 @@ pcie_switch_port = 8
``` ```
Each device that is passed through is attached to a PCI Express downstream port Each device that is passed through is attached to a PCI Express downstream port
as illustrated below. We can even replicate the host’s two DPUs topologies with as illustrated below. We can even replicate the host’s two DPUs `topologies` with
added metadata through the CDI. Most of the time, a container only needs one added metadata through the CDI. Most of the time, a container only needs one
pair of GPU and NIC for GPUDirect RDMA. This is more of a showcase of what we pair of GPU and NIC for GPUDirect RDMA. This is more of a showcase of what we
can do with the power of Kata and CDI. One could even think of adding groups of can do with the power of Kata and CDI. One could even think of adding groups of
@ -328,7 +328,7 @@ $ lspci -tv
``` ```
The configuration of using either the root port or switch port can be applied on The configuration of using either the root port or switch port can be applied on
a per Container or Pod basis, meaning we can switch PCI Express topologies on a per Container or Pod basis, meaning we can switch PCI Express `topologies` on
each run of an application. each run of an application.
## Hypervisor Resource Limits ## Hypervisor Resource Limits