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Mon, 13 Mar 2023 15:38:50 +0000 (GMT) From: Ilya Leoshkevich To: Richard Henderson , David Hildenbrand Cc: Thomas Huth , qemu-s390x@nongnu.org, qemu-devel@nongnu.org, Ilya Leoshkevich , Harold Grovesteen , Nina Schoetterl-Glausch Subject: [PATCH v2 01/12] target/s390x: Handle branching to odd addresses Date: Mon, 13 Mar 2023 16:38:33 +0100 Message-Id: <20230313153844.9231-2-iii@linux.ibm.com> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20230313153844.9231-1-iii@linux.ibm.com> References: <20230313153844.9231-1-iii@linux.ibm.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-TM-AS-GCONF: 00 X-Proofpoint-ORIG-GUID: tQA5vtNce3-Hwfgrhh61eTnNudHMaAyx X-Proofpoint-GUID: bKokJ1qVYpmWxix4mGmNl3D08N095xzL X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.254,Aquarius:18.0.942,Hydra:6.0.573,FMLib:17.11.170.22 definitions=2023-03-13_07,2023-03-13_02,2023-02-09_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 suspectscore=0 mlxscore=0 phishscore=0 spamscore=0 impostorscore=0 lowpriorityscore=0 priorityscore=1501 mlxlogscore=981 bulkscore=0 malwarescore=0 clxscore=1015 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2212070000 definitions=main-2303130121 Received-SPF: pass client-ip=148.163.156.1; envelope-from=iii@linux.ibm.com; helo=mx0a-001b2d01.pphosted.com X-Spam_score_int: -19 X-Spam_score: -2.0 X-Spam_bar: -- X-Spam_report: (-2.0 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_EF=-0.1, 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+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Let branching happen and try to generate a new translation block with an odd address. Generate a specification exception in cpu_get_tb_cpu_state(). Reported-by: Harold Grovesteen Reported-by: Nina Schoetterl-Glausch Signed-off-by: Ilya Leoshkevich --- target/s390x/cpu.h | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/target/s390x/cpu.h b/target/s390x/cpu.h index 7d6d01325b2..0a76e96e078 100644 --- a/target/s390x/cpu.h +++ b/target/s390x/cpu.h @@ -29,6 +29,7 @@ #include "cpu_models.h" #include "exec/cpu-defs.h" #include "qemu/cpu-float.h" +#include "tcg/tcg_s390x.h" #define ELF_MACHINE_UNAME "S390X" @@ -381,6 +382,14 @@ static inline int cpu_mmu_index(CPUS390XState *env, bool ifetch) static inline void cpu_get_tb_cpu_state(CPUS390XState* env, target_ulong *pc, target_ulong *cs_base, uint32_t *flags) { + if (env->psw.addr & 1) { + /* + * Instructions must be at even addresses. + * This needs to be checked before address translation. + */ + env->int_pgm_ilen = 2; /* see s390_cpu_tlb_fill() */ + tcg_s390_program_interrupt(env, PGM_SPECIFICATION, 0); + } *pc = env->psw.addr; *cs_base = env->ex_value; *flags = (env->psw.mask >> FLAG_MASK_PSW_SHIFT) & FLAG_MASK_PSW; -- 2.39.2