linux-kernel - Re: [PATCH RFC v4 5/6] firmware/efi: Process CXL Component Events

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Message-ID: <657a2ff3bcc0b_25c9c7294ab@iweiny-mobl.notmuch>
Date:   Wed, 13 Dec 2023 14:28:03 -0800
From:   Ira Weiny <ira.weiny@...el.com>
To:     Jonathan Cameron <Jonathan.Cameron@...wei.com>,
        Ira Weiny <ira.weiny@...el.com>
CC:     Smita Koralahalli <Smita.KoralahalliChannabasappa@....com>,
        Dan Williams <dan.j.williams@...el.com>,
        Shiju Jose <shiju.jose@...wei.com>,
        Yazen Ghannam <yazen.ghannam@....com>,
        Davidlohr Bueso <dave@...olabs.net>,
        Dave Jiang <dave.jiang@...el.com>,
        Alison Schofield <alison.schofield@...el.com>,
        Vishal Verma <vishal.l.verma@...el.com>,
        Ard Biesheuvel <ardb@...nel.org>, <linux-efi@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>, <linux-cxl@...r.kernel.org>
Subject: Re: [PATCH RFC v4 5/6] firmware/efi: Process CXL Component Events

Jonathan Cameron wrote:
> On Wed, 29 Nov 2023 06:28:01 -0800
> Ira Weiny <ira.weiny@...el.com> wrote:
> 

[snip]

> > > __packed attribute just for cper_cxl_event_rec still fails to properly 
> > > align structure elements. Looks like, __packed attribute is needed for 
> > > all structs (cper_cxl_event_devid and cper_cxl_event_sn) inside 
> > > cper_cxl_event_rec.
> > > 
> > > Seems easier to use global pragma instead.. I could test and obtain the 
> > > output as expected using pragma..  
> > 
> > I did not know that was acceptable in the kernel but I see you used it in
> > cper_cxl.h before...
> > 
> > Ok I'll do that and spin again.
> > 
> > Thanks so much for testing this!  I was out last week and still don't have
> > a test environment.
> 
> Easy to hack into QEMU :)  Hmm. I have a CCIX patch set from years ago
> somewhere that does similar. Would be easy to repurposed. Looks like
> I never published them (just told people to ask if they wanted them :( ).
> 
> Anyhow, if useful I can dig them out.

If you have a branch with them with a somewhat latest qemu that could work
too.

Ira