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envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=148.163.158.5; envelope-from=iii@linux.ibm.com; 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, 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_CERTIFIED_BLOCKED=0.001, RCVD_IN_VALIDITY_RPBL_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: 1760637659870158500 Content-Type: text/plain; charset="utf-8" After reset, CKC value is set to 0, so if clock-comparator interrupts are enabled, one should occur very shortly thereafter. Currently the code that loads the respective control register does not set tod_timer, so this does not happen. Fix by adding a tcg_s390_tod_updated() call to LCTL and LCTLG. Cc: qemu-stable@nongnu.org Suggested-by: Thomas Huth Reviewed-by: Thomas Huth Signed-off-by: Ilya Leoshkevich --- target/s390x/tcg/mem_helper.c | 11 ++++++++++- 1 file changed, 10 insertions(+), 1 deletion(-) diff --git a/target/s390x/tcg/mem_helper.c b/target/s390x/tcg/mem_helper.c index f1acb1618f7..24675fc818d 100644 --- a/target/s390x/tcg/mem_helper.c +++ b/target/s390x/tcg/mem_helper.c @@ -1959,6 +1959,10 @@ void HELPER(lctlg)(CPUS390XState *env, uint32_t r1, = uint64_t a2, uint32_t r3) if (env->cregs[i] !=3D val && i >=3D 9 && i <=3D 11) { PERchanged =3D true; } + if (i =3D=3D 0 && !(env->cregs[i] & CR0_CKC_SC) && (val & CR0_CKC_= SC)) { + BQL_LOCK_GUARD(); + tcg_s390_tod_updated(env_cpu(env), RUN_ON_CPU_NULL); + } env->cregs[i] =3D val; HELPER_LOG("load ctl %d from 0x%" PRIx64 " =3D=3D 0x%" PRIx64 "\n", i, src, val); @@ -1989,10 +1993,15 @@ void HELPER(lctl)(CPUS390XState *env, uint32_t r1, = uint64_t a2, uint32_t r3) =20 for (i =3D r1;; i =3D (i + 1) % 16) { uint32_t val =3D cpu_ldl_data_ra(env, src, ra); + uint64_t val64 =3D deposit64(env->cregs[i], 0, 32, val); if ((uint32_t)env->cregs[i] !=3D val && i >=3D 9 && i <=3D 11) { PERchanged =3D true; } - env->cregs[i] =3D deposit64(env->cregs[i], 0, 32, val); + if (i =3D=3D 0 && !(env->cregs[i] & CR0_CKC_SC) && (val64 & CR0_CK= C_SC)) { + BQL_LOCK_GUARD(); + tcg_s390_tod_updated(env_cpu(env), RUN_ON_CPU_NULL); + } + env->cregs[i] =3D val64; HELPER_LOG("load ctl %d from 0x%" PRIx64 " =3D=3D 0x%x\n", i, src,= val); src +=3D sizeof(uint32_t); =20 --=20 2.51.0