[PATCH v3 16/18] cxl: Support the cxl kernel API from a guest

[Ian Munsie]

> +static int guest_afu_cr_write32(struct cxl_afu *afu, int cr, u64 off, u32 in)
> +{
> +    /* config record is not writable from guest */
> +    return -EIO;

Perhaps -EPERM might be a better choice for these three?

Acked-by: Ian Munsie <imunsie at au1.ibm.com>