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Fri, 26 Sep 2025 17:21:44 -0700 (PDT) From: anisa.su887@gmail.com To: qemu-devel@nongnu.org Cc: Jonathan.Cameron@huawei.com, dave@stgolabs.net, linux-cxl@vger.kernel.org, Anisa Su Subject: [QEMU PATCH 1/1] hw/cxl/cxl-mailbox-utils: Enable FMAPI Initiate Add for MHSLD Date: Sat, 27 Sep 2025 00:18:07 +0000 Message-ID: <20250927002125.860668-2-anisa.su887@gmail.com> X-Mailer: git-send-email 2.51.0 In-Reply-To: <20250927002125.860668-1-anisa.su887@gmail.com> References: <20250927002125.860668-1-anisa.su887@gmail.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable 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=2607:f8b0:4864:20::431; envelope-from=anisa.su887@gmail.com; helo=mail-pf1-x431.google.com X-Spam_score_int: -17 X-Spam_score: -1.8 X-Spam_bar: - X-Spam_report: (-1.8 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, FREEMAIL_ENVFROM_END_DIGIT=0.25, FREEMAIL_FROM=0.001, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, T_SPF_TEMPERROR=0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: 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 @gmail.com) X-ZM-MESSAGEID: 1758932650448116600 Content-Type: text/plain; charset="utf-8" From: Anisa Su Call mhd_reserve_extents in FMAPI Init Add (5604h)to enable sending FMAPI Add command to MHSLD. Signed-off-by: Anisa Su --- hw/cxl/cxl-mailbox-utils.c | 25 +++++++++++++++++++++++++ 1 file changed, 25 insertions(+) diff --git a/hw/cxl/cxl-mailbox-utils.c b/hw/cxl/cxl-mailbox-utils.c index c5177dfd92..9ac60db4e1 100644 --- a/hw/cxl/cxl-mailbox-utils.c +++ b/hw/cxl/cxl-mailbox-utils.c @@ -24,6 +24,7 @@ #include "system/hostmem.h" #include "qemu/range.h" #include "qapi/qapi-types-cxl.h" +#include "hw/cxl/mhsld/mhsld.h" =20 #define CXL_CAPACITY_MULTIPLIER (256 * MiB) #define CXL_DC_EVENT_LOG_SIZE 8 @@ -4163,6 +4164,8 @@ static CXLRetCode cmd_fm_initiate_dc_add(const struct= cxl_cmd *cmd, CXLDCExtentRaw extents[]; } QEMU_PACKED *in =3D (void *)payload_in; CXLType3Dev *ct3d =3D CXL_TYPE3(cci->d); + CXLType3Class *cvc =3D CXL_TYPE3_GET_CLASS(ct3d); + CXLDCRegion *region =3D &ct3d->dc.regions[in->reg_num]; int i, rc; =20 switch (in->selection_policy) { @@ -4201,6 +4204,28 @@ static CXLRetCode cmd_fm_initiate_dc_add(const struc= t cxl_cmd *cmd, return rc; } =20 + /* If this is an MHD, attempt to reserve the extents */ + if (cvc->mhd_reserve_extents) { + g_autofree CxlDynamicCapacityExtentList *records =3D + g_malloc0(in->ext_count * sizeof(*records)); + g_autofree CxlDynamicCapacityExtent *dc_exts =3D + g_malloc0(in->ext_count * sizeof(*dc_exts)); + + for (i =3D 0; i < in->ext_count; i++) { + CxlDynamicCapacityExtent *value =3D &dc_exts[i]; + value->offset =3D + in->extents[i].start_dpa - region->base; + value->len =3D in->extents[i].len; + + records[i].value =3D value; + records[i].next =3D &records[i + 1]; + } + records[in->ext_count - 1].next =3D NULL; + if (!cvc->mhd_reserve_extents(&ct3d->parent_obj, records, = in->reg_num)) { + return CXL_MBOX_INVALID_INPUT; + } + } + CXLDCExtentGroup *group =3D NULL; for (i =3D 0; i < in->ext_count; i++) { CXLDCExtentRaw *ext =3D &in->extents[i]; --=20 2.51.0