diff --git a/gofurther/vfio-mdev.md b/gofurther/vfio-mdev.md index 1767265..6ad602f 100644 --- a/gofurther/vfio-mdev.md +++ b/gofurther/vfio-mdev.md @@ -2,7 +2,7 @@ title: Virtual Function I/O Mediated devices (vfio-mdev) description: Create and Configure Virtual Function I/O Mediated devices (vfio-mdev) published: true -date: 2025-03-31T17:18:30.931Z +date: 2025-03-31T17:21:00.391Z tags: editor: markdown dateCreated: 2022-07-21T21:10:41.046Z @@ -13,7 +13,7 @@ dateCreated: 2022-07-21T21:10:41.046Z > These instructions only cover **Intel GPUs** that are compatible with *vfio-mdev* (5th to 10th generation). Since generation 11th, *vfio-mdev* has been superseded by *SR-IOV*. {.is-warning} -[Virtual Function I/O Mediated devices](https://www.kernel.org/doc/html/latest/driver-api/vfio-mediated-device.html) (vfio-mdev) allows a phyiscal GPU to be split into multiple virtual GPUs (vGPU). Such a vGPU can then be assigned to a virtual machine or a container. +[Virtual Function I/O Mediated devices](https://www.kernel.org/doc/html/latest/driver-api/vfio-mediated-device.html) (vfio-mdev) allows a physical GPU to be split into multiple virtual GPUs (vGPU). Such a vGPU can then be assigned to a virtual machine or a container. Contrary to paravirtualized GPUs (e.g. *virtio-gpu*), vGPUs can use the same driver as their parent GPU (e.g. a guest compatible with an Intel GPUs will be able to leverage an Intel-based vGPUs) @@ -186,10 +186,10 @@ On some computers, it is possible to increase the system memory allocated to the * Before the host operating system boots up, enter the BIOS/UEFI and look for a setting called *GPU aperture size* or *GPU shared memory* -* Use the highest possible value, but not higher than the available system memory. +* Use the highest possible value, but not higher than the available system memory -> System memory will be reserved for the GPU, so make sure you have enough system memory to accomodate both the GPU and your operating system. For instance, if you have a total of 16GB of system memory, it is recommanded to not allocate more than 4GB to the GPU. -{.is-warning} +> System memory will be reserved for the GPU, so make sure you have enough system memory to accomodate both the GPU and your operating system. For instance, if you have a total of 16GB of system memory, it is recommended to allocate no more than 4GB to the GPU +{.is-info} ## Resources