Re: [PATCH v3 11/15] vfio: add region info cache

2025-05-09 Thread Cédric Le Goater
On 5/7/25 17:20, John Levon wrote: Instead of requesting region information on demand with VFIO_DEVICE_GET_REGION_INFO, maintain a cache: this will become necessary for performance for vfio-user, where this call becomes a message over the control socket, so is of higher overhead than the traditio

[PATCH v3 11/15] vfio: add region info cache

2025-05-07 Thread John Levon
Instead of requesting region information on demand with VFIO_DEVICE_GET_REGION_INFO, maintain a cache: this will become necessary for performance for vfio-user, where this call becomes a message over the control socket, so is of higher overhead than the traditional path. We will also need it to ge