diff options
| author | Jasper Ras <jras@hostnet.nl> | 2025-01-08 10:48:09 +0100 |
|---|---|---|
| committer | Jasper Ras <jras@hostnet.nl> | 2025-01-08 10:48:09 +0100 |
| commit | ed0753ad224f0c65133bd7a63180257eecd9f5e3 (patch) | |
| tree | cc662868574fe17db58be9e0faadd452c84dc59c /3 resources/libvirt | |
| parent | 493be30dc981eaf762a95a1218f96893b1976727 (diff) | |
vault backup: 2025-01-08 10:48:09
Diffstat (limited to '3 resources/libvirt')
| -rw-r--r-- | 3 resources/libvirt/mediated-devices.md | 8 | ||||
| -rw-r--r-- | 3 resources/libvirt/sr-iov.md | 6 |
2 files changed, 14 insertions, 0 deletions
diff --git a/3 resources/libvirt/mediated-devices.md b/3 resources/libvirt/mediated-devices.md new file mode 100644 index 0000000..3011a28 --- /dev/null +++ b/3 resources/libvirt/mediated-devices.md @@ -0,0 +1,8 @@ +https://libvirt.org/drvnodedev.html#mediated-devices-mdevs + +They are virtual devices that share a single physical device. + +Similar to [[sr-iov]] but sr-iov required registering and unregistering devices with the host PCIe bus via a host driver. +Mediated devices don't have to do this. + +So why would we still choose sriov?
\ No newline at end of file diff --git a/3 resources/libvirt/sr-iov.md b/3 resources/libvirt/sr-iov.md new file mode 100644 index 0000000..e7eec8e --- /dev/null +++ b/3 resources/libvirt/sr-iov.md @@ -0,0 +1,6 @@ +Single root input/output virtualization: enables sharing of single PCI-e devices with multiple guests. + +Physical device = PF (Physical Function) +Virtual device = VF (Virtual Function) + +A PF is divided (by manufacturer) into *n* VFs. Thus a PF can be shared at most with *n* guests.
\ No newline at end of file |