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From: Ian Munsie <imunsie@au1.ibm.com>
To: Frederic Barrat <fbarrat@linux.vnet.ibm.com>
Cc: Michael Neuling <michael.neuling@au1.ibm.com>,
 linuxppc-dev <linuxppc-dev@lists.ozlabs.org>
Subject: Re: [PATCH v3 16/18] cxl: Support the cxl kernel API from a guest
In-reply-to: <1454765345-7417-17-git-send-email-fbarrat@linux.vnet.ibm.com>
References: <1454765345-7417-1-git-send-email-fbarrat@linux.vnet.ibm.com>
 <1454765345-7417-17-git-send-email-fbarrat@linux.vnet.ibm.com>
Date: Wed, 10 Feb 2016 22:26:21 +1100
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> +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@au1.ibm.com>