From: Markus Armbruster <armbru@redhat.com>
To: Alireza Sanaee <alireza.sanaee@huawei.com>
Cc: <qemu-devel@nongnu.org>, <anisa.su@samsung.com>,
<berrange@redhat.com>, <eblake@redhat.com>,
<jonathan.cameron@huawei.com>, <linux-cxl@vger.kernel.org>,
<linuxarm@huawei.com>, <lizhijian@fujitsu.com>,
<mst@redhat.com>, <pbonzini@redhat.com>, <gourry@gourry.net>,
<nifan.cxl@gmail.com>, <me@linux.beauty>
Subject: Re: [PATCH 1/9] hw/mem: Add tag support to generic host memory backends
Date: Thu, 26 Mar 2026 11:42:17 +0100 [thread overview]
Message-ID: <87a4vuhnxy.fsf@pond.sub.org> (raw)
In-Reply-To: <20260325184259.366-2-alireza.sanaee@huawei.com> (Alireza Sanaee's message of "Wed, 25 Mar 2026 18:42:49 +0000")
Alireza Sanaee <alireza.sanaee@huawei.com> writes:
> Add a string tag property to HostMemoryBackend so that backends can be
> identified by a user-assigned name at runtime. Expose the property through
> QOM and add a host_memory_backend_find_by_tag() helper that walks the
> object tree to locate a backend by its tag.
Why can't you use the QOM ID?
$ qemu-system-x86_64 -S -display none -monitor stdio -object memory-backend-ram,id=fred,size=1M
QEMU 10.2.90 monitor - type 'help' for more information
(qemu) info qom-tree /objects/fred
/fred (memory-backend-ram)
/fred[0] (memory-region)
next prev parent reply other threads:[~2026-03-26 10:42 UTC|newest]
Thread overview: 38+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-03-25 18:42 [QEMU PATCH 0/9] Application Specific Tagged Memory Support in CXL Type 3 Devices Alireza Sanaee
2026-03-25 18:42 ` Alireza Sanaee via qemu development
2026-03-25 18:42 ` [PATCH 1/9] hw/mem: Add tag support to generic host memory backends Alireza Sanaee
2026-03-25 18:42 ` Alireza Sanaee via qemu development
2026-03-26 10:42 ` Markus Armbruster [this message]
2026-03-26 11:29 ` Alireza Sanaee
2026-03-26 11:29 ` Alireza Sanaee via qemu development
2026-03-26 13:01 ` Markus Armbruster
2026-03-26 13:04 ` Alireza Sanaee
2026-03-26 13:04 ` Alireza Sanaee via qemu development
2026-03-25 18:42 ` [PATCH 2/9] hw/cxl: Allow initializing type3 device with no backing device Alireza Sanaee
2026-03-25 18:42 ` Alireza Sanaee via qemu development
2026-03-25 18:42 ` [PATCH 3/9] hw/cxl: Hook up tagged host memory backends at runtime for DC extents Alireza Sanaee
2026-03-25 18:42 ` Alireza Sanaee via qemu development
2026-03-25 18:42 ` [PATCH 4/9] hw/cxl: Carry backend metadata in DC extent records Alireza Sanaee
2026-03-25 18:42 ` Alireza Sanaee via qemu development
2026-03-25 18:42 ` [PATCH 5/9] hw/cxl: Map lazy memory backend after host acceptance Alireza Sanaee
2026-03-25 18:42 ` Alireza Sanaee via qemu development
2026-03-30 8:24 ` Anisa Su
2026-03-30 17:18 ` Anisa Su
2026-03-25 18:42 ` [PATCH 6/9] hw/cxl: Create direct fixed-window aliases for accepted extents Alireza Sanaee
2026-03-25 18:42 ` Alireza Sanaee via qemu development
2026-03-25 18:42 ` [PATCH 7/9] hw/cxl: Add release-time teardown for direct-mapped extents Alireza Sanaee
2026-03-25 18:42 ` Alireza Sanaee via qemu development
2026-03-25 18:42 ` [PATCH 8/9] hw/cxl: Add tag-based dynamic-capacity release support Alireza Sanaee
2026-03-25 18:42 ` Alireza Sanaee via qemu development
2026-03-30 18:03 ` Anisa Su
2026-03-31 14:53 ` Alireza Sanaee
2026-03-31 14:53 ` Alireza Sanaee via qemu development
2026-03-25 18:42 ` [PATCH 9/9] hw/cxl: Add QMP status query for dynamic-capacity extent release Alireza Sanaee
2026-03-25 18:42 ` Alireza Sanaee via qemu development
2026-03-26 15:15 ` Markus Armbruster
2026-03-27 15:18 ` Alireza Sanaee
2026-03-27 15:18 ` Alireza Sanaee via qemu development
2026-03-28 6:01 ` Markus Armbruster
2026-03-31 14:50 ` Alireza Sanaee
2026-03-31 14:50 ` Alireza Sanaee via qemu development
2026-04-01 11:39 ` Markus Armbruster
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