linux-kernel - Re: [PATCH v8 1/6] cxl/mbox: Add GET_POISON

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Date:   Mon, 13 Mar 2023 15:45:20 -0700
From:   Ira Weiny <ira.weiny@...el.com>
To:     <alison.schofield@...el.com>,
        Dan Williams <dan.j.williams@...el.com>,
        Ira Weiny <ira.weiny@...el.com>,
        Vishal Verma <vishal.l.verma@...el.com>,
        Dave Jiang <dave.jiang@...el.com>,
        Ben Widawsky <bwidawsk@...nel.org>,
        Steven Rostedt <rostedt@...dmis.org>
CC:     Alison Schofield <alison.schofield@...el.com>,
        <linux-cxl@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        Jonathan Cameron <Jonathan.Cameron@...wei.com>
Subject: Re: [PATCH v8 1/6] cxl/mbox: Add GET_POISON_LIST mailbox command

alison.schofield@ wrote:
> From: Alison Schofield <alison.schofield@...el.com>
> 
> CXL devices maintain a list of locations that are poisoned or result
> in poison if the addresses are accessed by the host.
> 
> Per the spec (CXL 3.0 8.2.9.8.4.1), the device returns this Poison
> list as a set of  Media Error Records that include the source of the
> error, the starting device physical address and length. The length is
> the number of adjacent DPAs in the record and is in units of 64 bytes.
> 
> Retrieve the poison list.
> 
> Signed-off-by: Alison Schofield <alison.schofield@...el.com>
> Reviewed-by: Jonathan Cameron <Jonathan.Cameron@...wei.com>

Reviewed-by: Ira Weiny <ira.weiny@...el.com>