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Tue, 09 Sep 2025 09:10:18 -0700 (PDT) X-Google-Smtp-Source: AGHT+IE7uXqTcCHtKK+IAStDMTF/GyKPFW+DXhncOW9Gln+4mzW3hRv5RzMNOwV9jK72QS7ToE4pMA== X-Received: by 2002:a17:902:f684:b0:24c:be1f:c1f9 with SMTP id d9443c01a7336-2516d33d2demr137694095ad.8.1757434217799; Tue, 09 Sep 2025 09:10:17 -0700 (PDT) From: Vacha Bhavsar To: qemu-devel@nongnu.org Cc: =?UTF-8?q?Alex=20Benn=C3=A9e?= , Thomas Huth , =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= , Peter Maydell , Paolo Bonzini , qemu-arm@nongnu.org, Vacha Bhavsar Subject: [PATCH v8 3/3] target/arm: Added test case for SME register exposure to GDB Date: Tue, 9 Sep 2025 16:10:12 +0000 Message-Id: <20250909161012.2561593-4-vacha.bhavsar@oss.qualcomm.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20250909161012.2561593-1-vacha.bhavsar@oss.qualcomm.com> References: <20250909161012.2561593-1-vacha.bhavsar@oss.qualcomm.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-Authority-Analysis: v=2.4 cv=H7Dbw/Yi c=1 sm=1 tr=0 ts=68c0516b cx=c_pps a=0uOsjrqzRL749jD1oC5vDA==:117 a=JYp8KDb2vCoCEuGobkYCKw==:17 a=yJojWOMRYYMA:10 a=EUspDBNiAAAA:8 a=xJcYWlU_UAsFVtOlWloA:9 a=mQ_c8vxmzFEMiUWkPHU9:22 X-Proofpoint-GUID: DyI5H061f-rZ-a660mXBvjPzFGwBOB3C X-Proofpoint-ORIG-GUID: DyI5H061f-rZ-a660mXBvjPzFGwBOB3C X-Proofpoint-Spam-Details-Enc: AW1haW4tMjUwOTA2MDAzOSBTYWx0ZWRfX8CpZxVgWhR/3 RIvsifcLlML4GSgRqRHKi6Zj/IzO3pGpS7MqylA1z/4xN/7sxub94YF+ClbmcToBgc1GZewODQf R1owl0H7lcKk6esJrjGyECJzAflLS3ueU0MNfyn4Wa7Gl5wLp7bzvgzDXIDLHSLTBrbdikRdpWo Bvu+a0vnpaKcMmyOwTZaPWumjuAf1Bcyjjw7RNYN6E0IrzFyoy7Ph7A5tVsRZNW9Lxn3d2Lqzl7 EO9JzGnQf218CfraYgCQOLfBBVynyeACgWthRVBNshYdamy/TvZkj/VwAFUZh1uU6dvyrtZ8sxy yHJJ17X0xqDyQwy4YuHNVc6keOGQe6CAjLCsV781Bjxrgw/nEKaz9h92w5ne2cLY5+mFU5zcTuv ESvEzUxb X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1117,Hydra:6.1.9,FMLib:17.12.80.40 definitions=2025-09-09_02,2025-09-08_02,2025-03-28_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 malwarescore=0 bulkscore=0 impostorscore=0 adultscore=0 phishscore=0 clxscore=1015 suspectscore=0 priorityscore=1501 spamscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.19.0-2507300000 definitions=main-2509060039 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=205.220.168.131; envelope-from=vacha.bhavsar@oss.qualcomm.com; helo=mx0a-0031df01.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_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 @qualcomm.com) X-ZM-MESSAGEID: 1757434370785124100 Content-Type: text/plain; charset="utf-8" This patch adds a test case to test SME register exposure to a remote gdb debugging session. This test simply sets and reads SME registers. Signed-off-by: Vacha Bhavsar --- Changes since v7: - removed int casting in test and removed checks for appropriate gdb versions which support the required int casting - merged quadword and doubleword tile slice support test into a single tile slice support test --- configure | 6 ++ tests/tcg/aarch64/Makefile.target | 29 +++++++ tests/tcg/aarch64/gdbstub/test-sme.py | 116 ++++++++++++++++++++++++++ 3 files changed, 151 insertions(+) create mode 100644 tests/tcg/aarch64/gdbstub/test-sme.py diff --git a/configure b/configure index 274a778764..9aea02cf6a 100755 --- a/configure +++ b/configure @@ -1839,6 +1839,12 @@ for target in $target_list; do echo "GDB=3D$gdb_bin" >> $config_target_mak fi =20 + if test "${gdb_arches#*$arch}" !=3D "$gdb_arches" && version_ge $gdb= _version 14.1; then + echo "GDB_HAS_SME_TILES=3Dy" >> $config_target_mak + else + echo "GDB_HAS_SME_TILES=3Dn" >> $config_target_mak + fi + if test "${gdb_arches#*aarch64}" !=3D "$gdb_arches" && version_ge $g= db_version 15.1; then echo "GDB_HAS_MTE=3Dy" >> $config_target_mak fi diff --git a/tests/tcg/aarch64/Makefile.target b/tests/tcg/aarch64/Makefile= .target index 16ddcf4f88..41b31c9353 100644 --- a/tests/tcg/aarch64/Makefile.target +++ b/tests/tcg/aarch64/Makefile.target @@ -134,6 +134,35 @@ run-gdbstub-sve-ioctls: sve-ioctls =20 EXTRA_RUNS +=3D run-gdbstub-sysregs run-gdbstub-sve-ioctls =20 +ifneq ($(CROSS_AS_HAS_ARMV9_SME),) +# SME gdbstub tests + +run-gdbstub-sysregs-sme: sysregs + $(call run-test, $@, $(GDB_SCRIPT) \ + --gdb $(GDB) \ + --qemu $(QEMU) --qargs "$(QEMU_OPTS)" \ + --bin $< --test $(AARCH64_SRC)/gdbstub/test-sme.py \ + -- test_sme --gdb_basic_za_test, \ + basic gdbstub SME support) + +ifeq ($(GDB_HAS_SME_TILES),y) +run-gdbstub-sysregs-sme-tile-slice: sysregs + $(call run-test, $@, $(GDB_SCRIPT) \ + --gdb $(GDB) \ + --qemu $(QEMU) --qargs "$(QEMU_OPTS)" \ + --bin $< --test $(AARCH64_SRC)/gdbstub/test-sme.py \ + -- test_sme --gdb_tile_slice_test, \ + gdbstub SME ZA tile slice support) +else +run-gdbstub-sysregs-sme-tile-slice: sysregs + $(call skip-test,"gdbstub SME ZA tile slice support", \ + "selected gdb ($(GDB)) does not support SME ZA tile slices") +endif + +EXTRA_RUNS +=3D run-gdbstub-sysregs-sme run-gdbstub-sysregs-sme-tile-slice + =20 +endif + ifeq ($(GDB_HAS_MTE),y) run-gdbstub-mte: mte-8 $(call run-test, $@, $(GDB_SCRIPT) \ diff --git a/tests/tcg/aarch64/gdbstub/test-sme.py b/tests/tcg/aarch64/gdbs= tub/test-sme.py new file mode 100644 index 0000000000..ef3a4fcaee --- /dev/null +++ b/tests/tcg/aarch64/gdbstub/test-sme.py @@ -0,0 +1,116 @@ +# +# Copyright (c) Qualcomm Technologies, Inc. and/or its subsidiaries. +# +# SPDX-License-Identifier: GPL-2.0-or-later + +from __future__ import print_function +# +# Test the SME registers are visible and changeable via gdbstub +# +# This is launched via tests/guest-debug/run-test.py +# + +import argparse +import gdb +from test_gdbstub import main, report + +MAGIC =3D 0x01020304 +BASIC_ZA_TEST =3D 0 +TILE_SLICE_TEST =3D 0 + +def run_test(): + =20 + # Run the requested test(s) for SME ZA gdbstub support + + if BASIC_ZA_TEST: + run_basic_sme_za_gdbstub_support_test() + if TILE_SLICE_TEST: + run_basic_sme_za_tile_slice_gdbstub_support_test() + +def run_basic_sme_za_gdbstub_support_test(): + + # This test will check for gdbstub support for correctly reading + # and writing to the SME ZA register at the byte level. + =20 + frame =3D gdb.selected_frame() + rname =3D "za" + za =3D frame.read_register(rname) + report(True, "Reading %s" % rname) + + # Writing to the ZA register, byte by byte. + for i in range(0, 16): + for j in range(0, 16): + cmd =3D "set $za[%d][%d] =3D 0x01" % (i, j) + gdb.execute(cmd) + report(True, "%s" % cmd) + + # Reading from the ZA register, byte by byte. + for i in range(0, 16): + for j in range(0, 16): + reg =3D "$za[%d][%d]" % (i, j) + v =3D gdb.parse_and_eval(reg) + report(str(v.type) =3D=3D "uint8_t", "size of %s" % (reg)) + report(v =3D=3D 0x1, "%s is 0x%x" % (reg, 0x1)) + +def run_basic_sme_za_tile_slice_gdbstub_support_test(): + + # Test if SME ZA tile slices, both horizontal and vertical, + # can be correctly read and written to. The sizes to test + # are quadwords and doublewords. + + sizes =3D {} + sizes["q"] =3D "uint128_t" + sizes["d"] =3D "uint64_t" + =20 + # Accessing requested sizes of elements of ZA + for size in sizes: + + # Accessing various ZA tiles + for i in range(0, 4): + + # Accessing various horizontal slices for each ZA tile + for j in range(0, 4): + # Writing to various elements in each tile slice + for k in range(0, 4): + cmd =3D "set $za%dh%c%d[%d] =3D 0x%x" % (i, size, j, k= , MAGIC) + gdb.execute(cmd) + report(True, "%s" % cmd) + + # Reading from the written elements in each tile slice + for k in range(0, 4): + reg =3D "$za%dh%c%d[%d]" % (i, size, j, k) + v =3D gdb.parse_and_eval(reg) + report(str(v.type) =3D=3D sizes[size], "size of %s" % = (reg)) + report(v =3D=3D MAGIC, "%s is 0x%x" % (reg, MAGIC)) + =20 + # Accessing various vertical slices for each ZA tile + for j in range(0, 4): + # Writing to various elements in each tile slice + for k in range(0, 4): + cmd =3D "set $za%dv%c%d[%d] =3D 0x%x" % (i, size, j, k= , MAGIC) + gdb.execute(cmd) + report(True, "%s" % cmd) + + # Reading from the written elements in each tile slice + for k in range(0, 4): + reg =3D "$za%dv%c%d[%d]" % (i, size, j, k) + v =3D gdb.parse_and_eval(reg) + report(str(v.type) =3D=3D sizes[size], "size of %s" % = (reg)) + report(v =3D=3D MAGIC, "%s is 0x%x" % (reg, MAGIC)) + + +parser =3D argparse.ArgumentParser(description=3D"A gdbstub test for SME s= upport") +parser.add_argument("--gdb_basic_za_test", + help=3D"Enable test for basic SME ZA support", + action=3D"store_true") +parser.add_argument("--gdb_tile_slice_test", + help=3D"Enable test for ZA tile slice support", + action=3D"store_true") +args =3D parser.parse_args() + +if args.gdb_basic_za_test: + BASIC_ZA_TEST =3D 1 +if args.gdb_tile_slice_test: + TILE_SLICE_TEST =3D 1 + +main(run_test, expected_arch=3D"aarch64") --=20 2.34.1