{"id":2175730,"url":"http://patchwork.ozlabs.org/api/1.0/patches/2175730/?format=json","project":{"id":14,"url":"http://patchwork.ozlabs.org/api/1.0/projects/14/?format=json","name":"QEMU Development","link_name":"qemu-devel","list_id":"qemu-devel.nongnu.org","list_email":"qemu-devel@nongnu.org","web_url":"","scm_url":"","webscm_url":""},"msgid":"<20251218200353.301866-3-calebs@linux.ibm.com>","date":"2025-12-18T20:03:51","name":"[2/4] ppc/pnv: Support for SECURITY_SWITCH XSCOM register access","commit_ref":null,"pull_url":null,"state":"new","archived":false,"hash":"a110fe52c6233584f456367a6363d7e61e424f12","submitter":{"id":90855,"url":"http://patchwork.ozlabs.org/api/1.0/people/90855/?format=json","name":"Caleb Schlossin","email":"calebs@linux.ibm.com"},"delegate":null,"mbox":"http://patchwork.ozlabs.org/project/qemu-devel/patch/20251218200353.301866-3-calebs@linux.ibm.com/mbox/","series":[{"id":485910,"url":"http://patchwork.ozlabs.org/api/1.0/series/485910/?format=json","date":"2025-12-18T20:03:50","name":"Power10 PowerVM bringup fixes","version":1,"mbox":"http://patchwork.ozlabs.org/series/485910/mbox/"}],"check":"pending","checks":"http://patchwork.ozlabs.org/api/patches/2175730/checks/","tags":{},"headers":{"Return-Path":"","X-Original-To":"incoming@patchwork.ozlabs.org","Delivered-To":"patchwork-incoming@legolas.ozlabs.org","Authentication-Results":["legolas.ozlabs.org;\n\tdkim=pass (2048-bit key;\n unprotected) header.d=ibm.com header.i=@ibm.com header.a=rsa-sha256\n header.s=pp1 header.b=p64s9Uyb;\n\tdkim-atps=neutral","legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=nongnu.org\n (client-ip=209.51.188.17; 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a=rsa-sha256; c=relaxed/relaxed; d=ibm.com; h=cc\n :content-transfer-encoding:date:from:in-reply-to:message-id\n :mime-version:references:subject:to; s=pp1; bh=QCHr7wh/M1pwrrHRP\n PKSET60zsQsctfyDm+VTTG/IZg=; b=p64s9UybvnyydznL4NAtgYUc3aEzrj5D6\n 3R4e1LM7GATzDaPrxXSkEUfnZK145TrKRrumle4Ph3l2bDXnM2I47UlAPCpznoS2\n xzlHo0YnDQDKs7EnkIfk4ze3HmEqwEcqrF95khQhCNkFHeJHSXIGn4d3k2GWP1n4\n N0qpZpqwe/ZA9w+7Fy1FauRpJTbxxJAh3OMPHcMouezK/GKrUU5FPu6yK4/kC8vg\n Ifc5VwUPP58EVnKikb1hKp+ax3YVPhVQcjE1bon4B2sHba1Vzw+sONAzTsHBTL0v\n u89Tg/W4wbhgL0pX3G5ZttMeyfkxsBjBSyWycS+YblKtoeEBL9GnA==","From":"Caleb Schlossin ","To":"qemu-devel@nongnu.org","Cc":"qemu-ppc@nongnu.org, npiggin@gmail.com, adityag@linux.ibm.com,\n milesg@linux.ibm.com, chalapathi.v@linux.ibm.com, calebs@linux.ibm.com","Subject":"[PATCH 2/4] ppc/pnv: Support for SECURITY_SWITCH XSCOM register\n access","Date":"Thu, 18 Dec 2025 14:03:51 -0600","Message-ID":"<20251218200353.301866-3-calebs@linux.ibm.com>","X-Mailer":"git-send-email 2.47.3","In-Reply-To":"<20251218200353.301866-1-calebs@linux.ibm.com>","References":"<20251218200353.301866-1-calebs@linux.ibm.com>","MIME-Version":"1.0","Content-Transfer-Encoding":"8bit","X-TM-AS-GCONF":"00","X-Proofpoint-Spam-Details-Enc":"AW1haW4tMjUxMjE4MDE2NCBTYWx0ZWRfX/EExGydf+EWK\n LKETNLIoPjvpiCwJmC7aHyAhWLngCtng9irVl+iFaUKdnsdanqnp+7/qa/oDuMRKIJZNVy7SW28\n UdecgM5XhD8UMeciJ90mlYzTrhGs9FHQhoXQVxya9XqPPAt+9bECna2lPfLRNjXf0MhiddukoAP\n wfBA4swjSYRZtiPinQsarWAprlPnpm+IyYpA+51OxUZJ8KPxPjhnpTv+QyV1E/hWAr7zS8Kjw7A\n u1ryx248sCoYHCZUZVQySWrKl9tdkroDdvpk3ajzLTfKaOvy+XsaLD3pNpk3LFu6F7MNjZwQXPV\n hHjKntzzm3gLc9pNOV79AzHBjEG+UMnk+ePL4HqSy+g4moml3q6Vj1sVU2EpKNb/aMVSkVluqUv\n wWSLqbGcFUcZrkcJrDuiMblZ7q9KDVZ8X5uolUWLmnBwMr6TqZsGFleLC2/pBumHPtdLLIVnEp+\n yjzIgk0btNoAPD2kCMQ==","X-Proofpoint-ORIG-GUID":"7-9nNQMoEOU-3Rz9jjfjPHTIhHw_5pWY","X-Proofpoint-GUID":"rYoutBMcZJvB0V3wTZoYKvpmp_1rwLyF","X-Authority-Analysis":"v=2.4 cv=KqJAGGWN c=1 sm=1 tr=0 ts=69445e33 cx=c_pps\n a=5BHTudwdYE3Te8bg5FgnPg==:117 a=5BHTudwdYE3Te8bg5FgnPg==:17\n a=wP3pNCr1ah4A:10 a=VkNPw1HP01LnGYTKEx00:22 a=VnNF1IyMAAAA:8\n a=_ttvAf2Y2UeZ28-z6QkA:9 a=ZXulRonScM0A:10 a=zZCYzV9kfG8A:10","X-Proofpoint-Virus-Version":"vendor=baseguard\n engine=ICAP:2.0.293,Aquarius:18.0.1121,Hydra:6.1.9,FMLib:17.12.100.49\n definitions=2025-12-18_03,2025-12-17_02,2025-10-01_01","X-Proofpoint-Spam-Details":"rule=outbound_notspam policy=outbound score=0\n priorityscore=1501 clxscore=1015 phishscore=0 malwarescore=0 bulkscore=0\n adultscore=0 impostorscore=0 lowpriorityscore=0 suspectscore=0 spamscore=0\n classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0\n reason=mlx scancount=1 engine=8.19.0-2512120000 definitions=main-2512180164","Received-SPF":"pass client-ip=148.163.158.5;\n envelope-from=calebs@linux.ibm.com;\n helo=mx0b-001b2d01.pphosted.com","X-Spam_score_int":"-26","X-Spam_score":"-2.7","X-Spam_bar":"--","X-Spam_report":"(-2.7 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1,\n DKIM_VALID=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_LOW=-0.7,\n RCVD_IN_MSPIKE_H4=0.001, RCVD_IN_MSPIKE_WL=0.001,\n RCVD_IN_VALIDITY_RPBL_BLOCKED=0.001, RCVD_IN_VALIDITY_SAFE_BLOCKED=0.001,\n SPF_HELO_NONE=0.001, SPF_PASS=-0.001 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":",\n ","List-Archive":"","List-Post":"","List-Help":"","List-Subscribe":",\n ","Errors-To":"qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org","Sender":"qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org"},"content":"Power Hypervisor code requires access to the SECURITY_SWITCH\nXSCOM register at MMIO address 0x80028 (scom address 0x10005).\nAdding basic read support for now so that is doesn't cause\nerror messages to be posted.\n\nSigned-off-by: Glenn Miles \nSigned-off-by: Caleb Schlossin \n---\n hw/ppc/pnv_xscom.c | 2 ++\n 1 file changed, 2 insertions(+)","diff":"diff --git a/hw/ppc/pnv_xscom.c b/hw/ppc/pnv_xscom.c\nindex fbfec829d5..308430def7 100644\n--- a/hw/ppc/pnv_xscom.c\n+++ b/hw/ppc/pnv_xscom.c\n@@ -61,6 +61,8 @@ static uint32_t pnv_xscom_pcba(PnvChip *chip, uint64_t addr)\n static uint64_t xscom_read_default(PnvChip *chip, uint32_t pcba)\n {\n switch (pcba) {\n+ case 0x10005: /* SECURITY SWITCH */\n+ return 0;\n case 0xf000f:\n return PNV_CHIP_GET_CLASS(chip)->chip_cfam_id;\n case 0x18002: /* ECID2 */\n","prefixes":["2/4"]}