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charset="utf-8" This commit suppresses the following informational messages regarding unimplemented pnv_chiptod registers: pnv_chiptod: unimplemented register: Ox0 pnv_chiptod: unimplemented register: Ox1 pnv_chiptod: unimplemented register: Ox2 pnv_chiptod: unimplemented register: Ox3 pnv_chiptod: unimplemented register: Ox4 pnv_chiptod: unimplemented register: Ox5 pnv_chiptod: unimplemented register: Ox13 Signed-off-by: Glenn Miles Signed-off-by: Caleb Schlossin Reviewed-by: Chalapathi V =20 Reviewed-by: Glenn Miles --- hw/ppc/pnv_chiptod.c | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+) diff --git a/hw/ppc/pnv_chiptod.c b/hw/ppc/pnv_chiptod.c index f887a18cde..cd9b8ee348 100644 --- a/hw/ppc/pnv_chiptod.c +++ b/hw/ppc/pnv_chiptod.c @@ -145,6 +145,15 @@ static uint64_t pnv_chiptod_xscom_read(void *opaque, h= waddr addr, val |=3D PPC_BIT(4); } break; + case TOD_M_PATH_CTRL_REG: + case TOD_PRI_PORT_0_CTRL_REG: + case TOD_PRI_PORT_1_CTRL_REG: + case TOD_SEC_PORT_0_CTRL_REG: + case TOD_SEC_PORT_1_CTRL_REG: + case TOD_S_PATH_CTRL_REG: + case TOD_TX_TTYPE_2_REG: + /* unimplemented, but suppressing logging for now */ + break; default: qemu_log_mask(LOG_UNIMP, "pnv_chiptod: unimplemented register: Ox%" HWADDR_PRIx "\n", addr >> 3); @@ -420,6 +429,15 @@ static void pnv_chiptod_xscom_write(void *opaque, hwad= dr addr, case TOD_TX_TTYPE_5_REG: pctc->broadcast_ttype(chiptod, offset); break; + case TOD_M_PATH_CTRL_REG: + case TOD_PRI_PORT_0_CTRL_REG: + case TOD_PRI_PORT_1_CTRL_REG: + case TOD_SEC_PORT_0_CTRL_REG: + case TOD_SEC_PORT_1_CTRL_REG: + case TOD_S_PATH_CTRL_REG: + case TOD_TX_TTYPE_2_REG: + /* unimplemented, but suppressing logging for now */ + break; default: qemu_log_mask(LOG_UNIMP, "pnv_chiptod: unimplemented register: Ox%" HWADDR_PRIx "\n", addr >> 3); --=20 2.47.3 From nobody Sun Feb 8 05:28:32 2026 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=pass; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=pass(p=reject dis=none) header.from=linux.ibm.com ARC-Seal: i=1; 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charset="utf-8" Power Hypervisor code requires access to the SECURITY_SWITCH XSCOM register at MMIO address 0x80028 (scom address 0x10005). Adding basic read support for now so that is doesn't cause error messages to be posted. Signed-off-by: Glenn Miles Signed-off-by: Caleb Schlossin Reviewed-by: Aditya Gupta Reviewed-by: Chalapathi V =20 Reviewed-by: Glenn Miles --- hw/ppc/pnv_xscom.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/hw/ppc/pnv_xscom.c b/hw/ppc/pnv_xscom.c index fbfec829d5..308430def7 100644 --- a/hw/ppc/pnv_xscom.c +++ b/hw/ppc/pnv_xscom.c @@ -61,6 +61,8 @@ static uint32_t pnv_xscom_pcba(PnvChip *chip, uint64_t ad= dr) static uint64_t xscom_read_default(PnvChip *chip, uint32_t pcba) { switch (pcba) { + case 0x10005: /* SECURITY SWITCH */ + return 0; case 0xf000f: return PNV_CHIP_GET_CLASS(chip)->chip_cfam_id; case 0x18002: /* ECID2 */ --=20 2.47.3 From nobody Sun Feb 8 05:28:32 2026 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=pass; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=pass(p=reject dis=none) header.from=linux.ibm.com ARC-Seal: i=1; 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charset="utf-8" This commit adds the read/write functionality for few core and quad registers. Signed-off-by: Chalapathi V Signed-off-by: Caleb Schlossin Reviewed-by: Aditya Gupta Reviewed-by: Chalapathi V --- hw/ppc/pnv_core.c | 81 +++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 81 insertions(+) diff --git a/hw/ppc/pnv_core.c b/hw/ppc/pnv_core.c index fb2dfc7ba2..84a2fa6364 100644 --- a/hw/ppc/pnv_core.c +++ b/hw/ppc/pnv_core.c @@ -184,10 +184,18 @@ static const MemoryRegionOps pnv_core_power9_xscom_op= s =3D { * POWER10 core controls */ =20 +#define PNV10_XSCOM_EC_IMA_EVENT_MASK 0x400 #define PNV10_XSCOM_EC_CORE_THREAD_STATE 0x412 #define PNV10_XSCOM_EC_CORE_THREAD_INFO 0x413 +#define PNV10_XSCOM_EC_CORE_FIRMASK 0x443 +#define PNV10_XSCOM_EC_CORE_FIRMASK_AND 0x444 +#define PNV10_XSCOM_EC_CORE_FIRMASK_OR 0x445 #define PNV10_XSCOM_EC_CORE_DIRECT_CONTROLS 0x449 #define PNV10_XSCOM_EC_CORE_RAS_STATUS 0x454 +#define PNV10_XSCOM_EC_SPATTN_OR 0x497 +#define PNV10_XSCOM_EC_SPATTN_AND 0x498 +#define PNV10_XSCOM_EC_SPATTN 0x499 +#define PNV10_XSCOM_EC_SPATTN_MASK 0x49A =20 static uint64_t pnv_core_power10_xscom_read(void *opaque, hwaddr addr, unsigned int width) @@ -223,6 +231,19 @@ static uint64_t pnv_core_power10_xscom_read(void *opaq= ue, hwaddr addr, } } break; + case PNV10_XSCOM_EC_IMA_EVENT_MASK: + case PNV10_XSCOM_EC_CORE_FIRMASK: + return 0; + case PNV10_XSCOM_EC_CORE_FIRMASK_OR: + case PNV10_XSCOM_EC_CORE_FIRMASK_AND: + case PNV10_XSCOM_EC_SPATTN_OR: + case PNV10_XSCOM_EC_SPATTN_AND: + qemu_log_mask(LOG_GUEST_ERROR, "%s: Write only register, ignoring " + "xscom read at 0x%08x\n", __func__, offset); + break; + case PNV10_XSCOM_EC_SPATTN: + case PNV10_XSCOM_EC_SPATTN_MASK: + return 0; default: qemu_log_mask(LOG_UNIMP, "%s: unimp read 0x%08x\n", __func__, offset); @@ -283,6 +304,15 @@ static void pnv_core_power10_xscom_write(void *opaque,= hwaddr addr, } break; =20 + case PNV10_XSCOM_EC_IMA_EVENT_MASK: + case PNV10_XSCOM_EC_CORE_FIRMASK: + case PNV10_XSCOM_EC_CORE_FIRMASK_OR: + case PNV10_XSCOM_EC_CORE_FIRMASK_AND: + case PNV10_XSCOM_EC_SPATTN_OR: + case PNV10_XSCOM_EC_SPATTN_AND: + case PNV10_XSCOM_EC_SPATTN: + case PNV10_XSCOM_EC_SPATTN_MASK: + break; default: qemu_log_mask(LOG_UNIMP, "%s: unimp write 0x%08x\n", __func__, offset); @@ -568,6 +598,23 @@ static const MemoryRegionOps pnv_quad_power9_xscom_ops= =3D { * POWER10 Quads */ =20 +#define P10_XSCOM_EQ3_MODE_REG1 0x1160a +#define P10_XSCOM_EQ3_NCU_SPEC_BAR_REG 0x11650 +#define P10_XSCOM_EQ3_HTM_MODE 0x11680 +#define P10_XSCOM_EQ3_HTM_IMA_PDBAR 0x1168b +#define P10_XSCOM_EQ2_MODE_REG1 0x1260a +#define P10_XSCOM_EQ2_NCU_SPEC_BAR_REG 0x12650 +#define P10_XSCOM_EQ2_HTM_MODE 0x12680 +#define P10_XSCOM_EQ2_HTM_IMA_PDBAR 0x1268b +#define P10_XSCOM_EQ1_MODE_REG1 0x1460a +#define P10_XSCOM_EQ1_NCU_SPEC_BAR_REG 0x14650 +#define P10_XSCOM_EQ1_HTM_MODE 0x14680 +#define P10_XSCOM_EQ1_HTM_IMA_PDBAR 0x1468b +#define P10_XSCOM_EQ0_MODE_REG1 0x1860a +#define P10_XSCOM_EQ0_NCU_SPEC_BAR_REG 0x18650 +#define P10_XSCOM_EQ0_HTM_MODE 0x18680 +#define P10_XSCOM_EQ0_HTM_IMA_PDBAR 0x1868b + static uint64_t pnv_quad_power10_xscom_read(void *opaque, hwaddr addr, unsigned int width) { @@ -575,6 +622,23 @@ static uint64_t pnv_quad_power10_xscom_read(void *opaq= ue, hwaddr addr, uint64_t val =3D -1; =20 switch (offset) { + case P10_XSCOM_EQ0_MODE_REG1: + case P10_XSCOM_EQ0_NCU_SPEC_BAR_REG: + case P10_XSCOM_EQ0_HTM_MODE: + case P10_XSCOM_EQ0_HTM_IMA_PDBAR: + case P10_XSCOM_EQ1_MODE_REG1: + case P10_XSCOM_EQ1_NCU_SPEC_BAR_REG: + case P10_XSCOM_EQ1_HTM_MODE: + case P10_XSCOM_EQ1_HTM_IMA_PDBAR: + case P10_XSCOM_EQ2_MODE_REG1: + case P10_XSCOM_EQ2_NCU_SPEC_BAR_REG: + case P10_XSCOM_EQ2_HTM_MODE: + case P10_XSCOM_EQ2_HTM_IMA_PDBAR: + case P10_XSCOM_EQ3_MODE_REG1: + case P10_XSCOM_EQ3_NCU_SPEC_BAR_REG: + case P10_XSCOM_EQ3_HTM_MODE: + case P10_XSCOM_EQ3_HTM_IMA_PDBAR: + return 0; default: qemu_log_mask(LOG_UNIMP, "%s: unimp read 0x%08x\n", __func__, offset); @@ -589,6 +653,23 @@ static void pnv_quad_power10_xscom_write(void *opaque,= hwaddr addr, uint32_t offset =3D addr >> 3; =20 switch (offset) { + case P10_XSCOM_EQ0_MODE_REG1: + case P10_XSCOM_EQ0_NCU_SPEC_BAR_REG: + case P10_XSCOM_EQ0_HTM_MODE: + case P10_XSCOM_EQ0_HTM_IMA_PDBAR: + case P10_XSCOM_EQ1_MODE_REG1: + case P10_XSCOM_EQ1_NCU_SPEC_BAR_REG: + case P10_XSCOM_EQ1_HTM_MODE: + case P10_XSCOM_EQ1_HTM_IMA_PDBAR: + case P10_XSCOM_EQ2_MODE_REG1: + case P10_XSCOM_EQ2_NCU_SPEC_BAR_REG: + case P10_XSCOM_EQ2_HTM_MODE: + case P10_XSCOM_EQ2_HTM_IMA_PDBAR: + case P10_XSCOM_EQ3_MODE_REG1: + case P10_XSCOM_EQ3_NCU_SPEC_BAR_REG: + case P10_XSCOM_EQ3_HTM_MODE: + case P10_XSCOM_EQ3_HTM_IMA_PDBAR: + break; 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Thu, 18 Dec 2025 20:04:03 +0000 (GMT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ibm.com; h=cc :content-transfer-encoding:date:from:in-reply-to:message-id :mime-version:references:subject:to; s=pp1; bh=MFD3WOaxWcOQcNyMi MydX6i0nQ0MTp12mG8yxLmezf0=; b=Mx0YuxQGokNpsM0tXVFd1wT1317sxVU2U r/3oFacgIjNcEHD2SPUbPkIa8eclwEKWKcLlh9uN6X+BlQ/WasahUp0fDlFy6EQO xhd+UCv5LWgEyqyP++Ez0ghIDVh9q3Tq6/cCoSL5fSMgomakNcdATqoCcMrck3fI LSSNOsPJWC1Adae8EI32r24yesBije8RRdYu/U3KEuYxLDWwD5zAbKuuwCRtNd1s oZh1mzALKgH4Aef6pfH9dhnmUYvwP7D4RVwgs6PWLG+UynYkVE4ByTQrEgUo4A9w fcGfOzzYXypsyAupeKOF6tdjQtyvCQ8K/4ZTCOsomAiY2iNufBuog== From: Caleb Schlossin To: qemu-devel@nongnu.org Cc: qemu-ppc@nongnu.org, npiggin@gmail.com, adityag@linux.ibm.com, milesg@linux.ibm.com, chalapathi.v@linux.ibm.com, calebs@linux.ibm.com Subject: [PATCH 4/4] ppc/pnv: Add OCC FLAG registers Date: Thu, 18 Dec 2025 14:03:53 -0600 Message-ID: <20251218200353.301866-5-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: quoted-printable X-TM-AS-GCONF: 00 X-Authority-Analysis: v=2.4 cv=WYkBqkhX c=1 sm=1 tr=0 ts=69445e37 cx=c_pps a=AfN7/Ok6k8XGzOShvHwTGQ==:117 a=AfN7/Ok6k8XGzOShvHwTGQ==:17 a=wP3pNCr1ah4A:10 a=VkNPw1HP01LnGYTKEx00:22 a=VnNF1IyMAAAA:8 a=C6aVSkDANSdmHkZ1WT0A:9 X-Proofpoint-GUID: uBhkv_ehkZOhH3M6BkNQTRDxduOu7sw7 X-Proofpoint-ORIG-GUID: 8L7A2eHLtH8hvvkYOBspBYGAX1LAcz0o X-Proofpoint-Spam-Details-Enc: AW1haW4tMjUxMjE4MDE2NCBTYWx0ZWRfX7gvaX2o8Y76T /rci6LKvWokVF8Wgc2BY4UeZdvahDjfZhF7dkWgyjMOQd2OeFYqjFj2AE9Vu3irbIpKLwwRos1c hMG5Gf94bdsGZyaLis9p1hFZ5LutCuwsmlOEi1FJnsJoChsdzHTOYDeXiVFjD0KmZWd/pyGT4sZ UZwY9bZwMR1Ick5gx1ZN3jO6Zz0uxMlBxdLvHSyzNSIm9eozR3TCK0h1mG349qzRB0C+oaPNWIJ cyS/HxgKYQCefeXgnhshGax5YUNmgST7BHAiLSHmDIMTQD4Q4BiU76BNarE2LPluUk+KkBZ74vP +/4TtGSponEgnsNpMtVGI4lRzPE9818qsZsTiX7SrIjVs7jEyM25NLsHb6ASYXDRxkb/fOLMceC vg160qIFFfT0Q1BnvkxgnqiHzPNBmVjzd4oVOHq0sWAYJToqfPEiYIQ0PT7I1hwz4CAPr/xvhRS P6+/0ogXyOxQ2zdqfDQ== X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1121,Hydra:6.1.9,FMLib:17.12.100.49 definitions=2025-12-18_03,2025-12-17_02,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 lowpriorityscore=0 adultscore=0 impostorscore=0 priorityscore=1501 bulkscore=0 malwarescore=0 spamscore=0 phishscore=0 clxscore=1015 suspectscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.19.0-2512120000 definitions=main-2512180164 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 (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=148.163.156.1; envelope-from=calebs@linux.ibm.com; helo=mx0a-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, DKIM_VALID=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_LOW=-0.7, RCVD_IN_MSPIKE_H4=0.001, RCVD_IN_MSPIKE_WL=0.001, RCVD_IN_VALIDITY_RPBL_BLOCKED=0.001, RCVD_IN_VALIDITY_SAFE_BLOCKED=0.001, 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: , 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 @ibm.com) X-ZM-MESSAGEID: 1766088343688158500 Content-Type: text/plain; charset="utf-8" OCCFLG are scratch registers that can be shared with OCC firmware. Log reads and writes to the registers as a reminder when we run into more OCC code. Add RW, WO_CLEAR and WO_OR SCOM Type enums in pnv_occ.c Signed-off-by: Chalapathi V Signed-off-by: Caleb Schlossin Reviewed-by: Aditya Gupta Reviewed-by: Chalapathi V --- hw/ppc/pnv_occ.c | 55 +++++++++++++++++++++++++++++++++++++--- include/hw/ppc/pnv_occ.h | 4 +++ 2 files changed, 56 insertions(+), 3 deletions(-) diff --git a/hw/ppc/pnv_occ.c b/hw/ppc/pnv_occ.c index 24b789c191..e605ae0fbc 100644 --- a/hw/ppc/pnv_occ.c +++ b/hw/ppc/pnv_occ.c @@ -195,6 +195,49 @@ static const TypeInfo pnv_occ_power8_type_info =3D { #define P9_OCB_OCI_OCCMISC_CLEAR 0x6081 #define P9_OCB_OCI_OCCMISC_OR 0x6082 =20 +/* OCC scratch registers for flag setting */ +#define P9_OCCFLG0 0x60ac +#define P9_OCCFLG7_OR 0x60c3 + +enum ScomType { + SCOM_TYPE_RW =3D 0, + SCOM_TYPE_WO_CLEAR =3D 1, + SCOM_TYPE_WO_OR =3D 2, +}; + +static void rw_occ_flag_regs(PnvOCC *occ, uint32_t offset, bool read, + uint64_t *val) +{ + int flag_num; + int flag_type; + + /* + * Each OCCFLG register has SCOM0 - RW, SCOM1 - WO_CLEAR, SCOM2 - WO_OR + * hence devide by 3 to get flag index and mod 3 to get SCOM type. + */ + flag_num =3D (offset - P9_OCCFLG0) / 3; + flag_type =3D (offset - P9_OCCFLG0) % 3; + + if (read) { + if (flag_type) { + qemu_log_mask(LOG_GUEST_ERROR, "OCC: Write only register: Ox%" + PRIx32 "\n", offset); + return; + } + *val =3D occ->occflags[flag_num]; + } else { + switch (flag_type) { + case SCOM_TYPE_RW: + occ->occflags[flag_num] =3D *val; + break; + case SCOM_TYPE_WO_CLEAR: + occ->occflags[flag_num] &=3D ~(*val); + break; + case SCOM_TYPE_WO_OR: + occ->occflags[flag_num] |=3D *val; + } + } +} =20 static uint64_t pnv_occ_power9_xscom_read(void *opaque, hwaddr addr, unsigned size) @@ -207,8 +250,11 @@ static uint64_t pnv_occ_power9_xscom_read(void *opaque= , hwaddr addr, case P9_OCB_OCI_OCCMISC: val =3D occ->occmisc; break; + case P9_OCCFLG0 ... P9_OCCFLG7_OR: + rw_occ_flag_regs(occ, offset, 1, &val); + break; default: - qemu_log_mask(LOG_UNIMP, "OCC Unimplemented register: Ox%" + qemu_log_mask(LOG_UNIMP, "OCC Unimplemented register read: Ox%" HWADDR_PRIx "\n", addr >> 3); } return val; @@ -229,9 +275,12 @@ static void pnv_occ_power9_xscom_write(void *opaque, h= waddr addr, break; case P9_OCB_OCI_OCCMISC: pnv_occ_set_misc(occ, val); - break; + break; + case P9_OCCFLG0 ... P9_OCCFLG7_OR: + rw_occ_flag_regs(occ, offset, 0, &val); + break; default: - qemu_log_mask(LOG_UNIMP, "OCC Unimplemented register: Ox%" + qemu_log_mask(LOG_UNIMP, "OCC Unimplemented register write: Ox%" HWADDR_PRIx "\n", addr >> 3); } } diff --git a/include/hw/ppc/pnv_occ.h b/include/hw/ppc/pnv_occ.h index 013ea2e53e..8c9f1416eb 100644 --- a/include/hw/ppc/pnv_occ.h +++ b/include/hw/ppc/pnv_occ.h @@ -47,6 +47,10 @@ struct PnvOCC { /* OCC Misc interrupt */ uint64_t occmisc; =20 + /* OCC Flags */ +#define NR_FLAG_REGS 8 + uint32_t occflags[NR_FLAG_REGS]; + qemu_irq psi_irq; =20 /* OCCs operate on regions of HOMER memory */ --=20 2.47.3