Re: [RFC PATCH v2 0/3] KVM: allow mapping of compound tail pages for IO or PFNMAP mapping

On Wed, Jan 03, 2024, Yan Zhao wrote:

This is a v2 for previous series [1] to allow mapping for compound tail pages for IO or PFNMAP mapping.

Compared to v1, this version provides selftest to check functionality in KVM to map memslots for MMIO BARs (VMAs with flag VM_IO | VM_PFNMAP), as requested by Sean in [1].

Doh. So I didn't intend for you to have to create a mock device just to be able to run a selftest. I assumed it would be easy-ish to utilize an existing generic device. I take it that's not the case?