linux-kernel - Re: [PATCH 2/2] cxl/mbox: Wire up irq support

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <20221021172324.efg7vzrguvd7m44r@offworld>
Date:   Fri, 21 Oct 2022 10:23:24 -0700
From:   Davidlohr Bueso <dave@...olabs.net>
To:     Jonathan Cameron <Jonathan.Cameron@...wei.com>
Cc:     dan.j.williams@...el.com, ira.weiny@...el.com,
        dave.jiang@...el.com, alison.schofield@...el.com,
        bwidawsk@...nel.org, vishal.l.verma@...el.com,
        a.manzanares@...sung.com, linux-cxl@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH 2/2] cxl/mbox: Wire up irq support

On Tue, 18 Oct 2022, Jonathan Cameron wrote:

>Whilst I get the need for an example, I'd rather this didn't
>go in until we have that background handler in place.

One of the reasons why the bg stuff hasn't been re-posted is
because the only user currently is the sanitation work
(and hopefully maybe scan media soon), which in turn depends
on the cache-flushing thing to be picked up (unless someone
starts ranting again against wbinvd). And that is in Dave's
pmem security series which I'm hoping will be picked up for
v6.3 at some point.

So I guess we're a while away from the irq thing. I was mostly
suggesting sending an mbox-only just to layout the
pci_alloc_irq_vectors if we're not using the common table,
but per the above this might not be sooner than the pmu or
events stuff...

>Unused infrastructure tends to rot or not be quite what is
>needed.

No arguing there.

Thanks,
Davidlohr