From: Alison Schofield <alison.schofield@intel.com>
To: Smita Koralahalli <Smita.KoralahalliChannabasappa@amd.com>
Cc: <linux-cxl@vger.kernel.org>, <linux-kernel@vger.kernel.org>,
<nvdimm@lists.linux.dev>, <linux-fsdevel@vger.kernel.org>,
<linux-pm@vger.kernel.org>, Davidlohr Bueso <dave@stgolabs.net>,
"Jonathan Cameron" <jonathan.cameron@huawei.com>,
Dave Jiang <dave.jiang@intel.com>,
Vishal Verma <vishal.l.verma@intel.com>,
Ira Weiny <ira.weiny@intel.com>,
"Dan Williams" <dan.j.williams@intel.com>,
Matthew Wilcox <willy@infradead.org>, Jan Kara <jack@suse.cz>,
"Rafael J . Wysocki" <rafael@kernel.org>,
Len Brown <len.brown@intel.com>, Pavel Machek <pavel@kernel.org>,
Li Ming <ming.li@zohomail.com>,
Jeff Johnson <jeff.johnson@oss.qualcomm.com>,
"Ying Huang" <huang.ying.caritas@gmail.com>,
Yao Xingtao <yaoxt.fnst@fujitsu.com>,
Peter Zijlstra <peterz@infradead.org>,
Greg KH <gregkh@linuxfoundation.org>,
Nathan Fontenot <nathan.fontenot@amd.com>,
Terry Bowman <terry.bowman@amd.com>,
Robert Richter <rrichter@amd.com>,
Benjamin Cheatham <benjamin.cheatham@amd.com>,
Zhijian Li <lizhijian@fujitsu.com>,
"Borislav Petkov" <bp@alien8.de>,
Ard Biesheuvel <ardb@kernel.org>
Subject: Re: [PATCH v3 0/5] dax/hmem, cxl: Coordinate Soft Reserved handling with CXL
Date: Mon, 6 Oct 2025 18:16:24 -0700 [thread overview]
Message-ID: <aORp6MpbPMIamNBh@aschofie-mobl2.lan> (raw)
In-Reply-To: <20250930044757.214798-1-Smita.KoralahalliChannabasappa@amd.com>
On Tue, Sep 30, 2025 at 04:47:52AM +0000, Smita Koralahalli wrote:
> This series aims to address long-standing conflicts between dax_hmem and
> CXL when handling Soft Reserved memory ranges.
Hi Smita,
Thanks for the updates Smita!
About those "long-standing conflicts": In the next rev, can you resurrect,
or recreate the issues list that this set is addressing. It's been a
long and winding road with several handoffs (me included) and it'll help
keep the focus.
Hotplug works :) Auto region comes up, we tear it down and can recreate it,
in place, because the soft reserved resource is gone (no longer occupying
the CXL Window and causing recreate to fail.)
!CONFIG_CXL_REGION works :) All resources go directly to DAX.
The scenario that is failing is handoff to DAX after region assembly
failure. (Dan reminded me to check that today.) That is mostly related
to Patch4, so I'll respond there.
--Alison
next prev parent reply other threads:[~2025-10-07 1:16 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-09-30 4:47 [PATCH v3 0/5] dax/hmem, cxl: Coordinate Soft Reserved handling with CXL Smita Koralahalli
2025-09-30 4:47 ` [PATCH v3 1/5] dax/hmem, e820, resource: Defer Soft Reserved registration until hmem is ready Smita Koralahalli
2025-09-30 4:47 ` [PATCH v3 2/5] dax/hmem: Request cxl_acpi and cxl_pci before walking Soft Reserved ranges Smita Koralahalli
2025-09-30 4:47 ` [PATCH v3 3/5] dax/hmem: Use DEV_DAX_CXL instead of CXL_REGION for deferral Smita Koralahalli
2025-09-30 4:47 ` [PATCH v3 4/5] dax/hmem: Defer Soft Reserved overlap handling until CXL region assembly completes Smita Koralahalli
2025-10-07 1:27 ` Alison Schofield
2025-10-07 2:03 ` Alison Schofield
2025-09-30 4:47 ` [PATCH v3 5/5] dax/hmem: Reintroduce Soft Reserved ranges back into the iomem tree Smita Koralahalli
2025-10-07 1:16 ` Alison Schofield [this message]
2025-10-10 20:49 ` [PATCH v3 0/5] dax/hmem, cxl: Coordinate Soft Reserved handling with CXL Alison Schofield
2025-10-14 17:52 ` Koralahalli Channabasappa, Smita
2025-10-21 0:06 ` Alison Schofield
2025-10-24 20:08 ` Koralahalli Channabasappa, Smita
2025-10-28 2:12 ` Alison Schofield
2025-11-03 11:18 ` Tomasz Wolski
2025-11-05 2:59 ` Koralahalli Channabasappa, Smita
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