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c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1772816265; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=bixJFigiCkrl9cifpW4RVb45ej0zL75PQtxcTkRAlW4=; b=drH6kQ6BaxocwD6fXppxgBKarPvd6eVtimCfTNJuGBiN00FrwsNKD0QQSt8cQt58PfOEOP oXhrBzcjmo+3bO/n7isIWCDMSonu/o/xBEwOK5PyB5LrKMKUTJxGO1EpEwIFVWf5WKJk7A y1P/QYkukf7u3HHatv/8791dL/PYGCw= X-MC-Unique: tngVE4uSM_-rldvWeSK-Uw-1 X-Mimecast-MFC-AGG-ID: tngVE4uSM_-rldvWeSK-Uw_1772816260 From: =?UTF-8?q?Daniel=20P=2E=20Berrang=C3=A9?= To: qemu-devel@nongnu.org Cc: Pierrick Bouvier , =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= , Keith Busch , Kevin Wolf , Stefan Hajnoczi , Avi Kivity , Fam Zheng , Hanna Reitz , Jesper Devantier , qemu-block@nongnu.org, Klaus Jensen , =?UTF-8?q?Daniel=20P=2E=20Berrang=C3=A9?= Subject: [PATCH 3/4] hw/nvme: add user controlled 'model' property Date: Fri, 6 Mar 2026 16:57:16 +0000 Message-ID: <20260306165717.3360110-4-berrange@redhat.com> In-Reply-To: <20260306165717.3360110-1-berrange@redhat.com> References: <20260306165717.3360110-1-berrange@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable X-Scanned-By: MIMEDefang 3.4.1 on 10.30.177.93 Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=170.10.129.124; envelope-from=berrange@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -9 X-Spam_score: -1.0 X-Spam_bar: - X-Spam_report: (-1.0 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.001, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H4=0.001, RCVD_IN_MSPIKE_WL=0.001, RCVD_IN_VALIDITY_RPBL_BLOCKED=0.411, RCVD_IN_VALIDITY_SAFE_BLOCKED=0.679, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001 autolearn=no autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: qemu development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @redhat.com) X-ZM-MESSAGEID: 1772816348892158500 This enables overriding the built in default "QEMU NVMe Ctrl" string with a user specified string. The value can be at most 40 characters in length. Signed-off-by: Daniel P. Berrang=C3=A9 --- docs/system/devices/nvme.rst | 5 +++++ hw/nvme/ctrl.c | 14 ++++++++++++-- hw/nvme/nvme.h | 1 + 3 files changed, 18 insertions(+), 2 deletions(-) diff --git a/docs/system/devices/nvme.rst b/docs/system/devices/nvme.rst index 6509b35fcb..109c01a70d 100644 --- a/docs/system/devices/nvme.rst +++ b/docs/system/devices/nvme.rst @@ -60,6 +60,11 @@ parameters. the SMART / Health information extended log become available in the controller. We emulate version 5 of this log page. =20 +``model`` (default: ``QEMU NVMe Ctrl``) + Override the default reported model, which can be used when needing + to more closely impersonate a particular device type. The model name + can be a maximum of 40 characters in length. + Additional Namespaces --------------------- =20 diff --git a/hw/nvme/ctrl.c b/hw/nvme/ctrl.c index e6b2e3b70a..4067443309 100644 --- a/hw/nvme/ctrl.c +++ b/hw/nvme/ctrl.c @@ -43,7 +43,8 @@ * atomic.dn=3D, \ * atomic.awun, \ * atomic.awupf, \ - * subsys=3D + * subsys=3D, \ + * model=3D * -device nvme-ns,drive=3D,bus=3D,nsid=3D,\ * zoned=3D, \ * subsys=3D,shared=3D, \ @@ -8606,6 +8607,13 @@ static bool nvme_check_params(NvmeCtrl *n, Error **e= rrp) return false; } =20 + if (params->model && + strlen(params->model) > NVME_ID_CTRL_MN_MAX_LEN) { + error_setg(errp, "'model' parameter '%s' can be at most '%d' chara= cters", + params->model, NVME_ID_CTRL_MN_MAX_LEN); + return false; + } + if (params->mqes < 1) { error_setg(errp, "mqes property cannot be less than 1"); return false; @@ -9099,7 +9107,8 @@ static void nvme_init_ctrl(NvmeCtrl *n, PCIDevice *pc= i_dev) =20 id->vid =3D cpu_to_le16(pci_get_word(pci_conf + PCI_VENDOR_ID)); id->ssvid =3D cpu_to_le16(pci_get_word(pci_conf + PCI_SUBSYSTEM_VENDOR= _ID)); - strpadcpy((char *)id->mn, sizeof(id->mn), "QEMU NVMe Ctrl", ' '); + strpadcpy((char *)id->mn, sizeof(id->mn), + n->params.model ? n->params.model : "QEMU NVMe Ctrl", ' '); strpadcpy((char *)id->fr, sizeof(id->fr), QEMU_VERSION, ' '); strpadcpy((char *)id->sn, sizeof(id->sn), n->params.serial, ' '); =20 @@ -9379,6 +9388,7 @@ static const Property nvme_props[] =3D { DEFINE_PROP_LINK("subsys", NvmeCtrl, subsys, TYPE_NVME_SUBSYS, NvmeSubsystem *), DEFINE_PROP_STRING("serial", NvmeCtrl, params.serial), + DEFINE_PROP_STRING("model", NvmeCtrl, params.model), DEFINE_PROP_UINT32("cmb_size_mb", NvmeCtrl, params.cmb_size_mb, 0), DEFINE_PROP_UINT32("num_queues", NvmeCtrl, params.num_queues, 0), DEFINE_PROP_UINT32("max_ioqpairs", NvmeCtrl, params.max_ioqpairs, 64), diff --git a/hw/nvme/nvme.h b/hw/nvme/nvme.h index d66f7dc82d..ebf1fcfdcd 100644 --- a/hw/nvme/nvme.h +++ b/hw/nvme/nvme.h @@ -542,6 +542,7 @@ typedef struct NvmeCQueue { =20 typedef struct NvmeParams { char *serial; + char *model; uint32_t num_queues; /* deprecated since 5.1 */ uint32_t max_ioqpairs; uint16_t msix_qsize; --=20 2.53.0