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charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-TM-AS-GCONF: 00 X-Proofpoint-ORIG-GUID: Ge6-RyiA4fhC4fGxYq9Sg7QfWr--9rGs X-Proofpoint-GUID: BXeppyvQaEWHNCR-JqG0GM-uSRoS36R6 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1039,Hydra:6.0.680,FMLib:17.12.28.16 definitions=2024-08-06_11,2024-08-06_01,2024-05-17_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 bulkscore=0 phishscore=0 lowpriorityscore=0 spamscore=0 clxscore=1015 malwarescore=0 impostorscore=0 priorityscore=1501 mlxscore=0 adultscore=0 suspectscore=0 mlxlogscore=893 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.19.0-2407110000 definitions=main-2408060093 On 8/2/24 5:59 PM, Christoph Schlameuss wrote: > Add a test case manipulating s390 storage keys from within the ucontrol > VM. > > Signed-off-by: Christoph Schlameuss > --- > .../selftests/kvm/s390x/ucontrol_test.c | 78 +++++++++++++++++++ > 1 file changed, 78 insertions(+) > [...] > +TEST_F(uc_kvm, uc_skey) > +{ > + u64 test_vaddr = self->base_gpa + VM_MEM_SIZE - (SZ_1M / 2); > + struct kvm_sync_regs *sync_regs = &self->run->s.regs; > + struct kvm_run *run = self->run; > + u8 skeyvalue = 0x34; > + > + init_st_pt(self); > + > + /* copy test_skey_asm to code_hva / code_gpa */ > + TH_LOG("copy code %p to vm mapped memory %p / %p", > + &test_skey_asm, (void *)self->code_hva, (void *)self->code_gpa); > + memcpy((void *)self->code_hva, &test_skey_asm, PAGE_SIZE); > + > + /* set register content for test_skey_asm to access not mapped memory */ > + sync_regs->gprs[1] = skeyvalue; > + sync_regs->gprs[5] = self->base_gpa; > + sync_regs->gprs[6] = test_vaddr; > + run->kvm_dirty_regs |= KVM_SYNC_GPRS; > + > + run->kvm_dirty_regs |= KVM_SYNC_CRS; > + TH_LOG("set CR0 to 0x%llx", sync_regs->crs[0]); You haven't touched any CRs here or am I missing something? > + > + self->sie_block->ictl |= ICTL_OPEREXC | ICTL_PINT; > + self->sie_block->cpuflags &= ~CPUSTAT_KSS; > + /* DAT enabled + 64 bit mode */ > + run->psw_mask = 0x0400000180000000ULL; > + run->psw_addr = self->code_gpa; > + > + ASSERT_EQ(0, uc_run_once(self)); > + ASSERT_EQ(false, uc_handle_exit(self)); > + ASSERT_EQ(2, sync_regs->gprs[0]); > + ASSERT_EQ(0x06, sync_regs->gprs[1]); /* ACC = 0, F & R = 1 */ > + uc_assert_diag44(self); > + > + sync_regs->gprs[1] = skeyvalue; > + run->kvm_dirty_regs |= KVM_SYNC_GPRS; > + ASSERT_EQ(0, uc_run_once(self)); > + ASSERT_EQ(false, uc_handle_exit(self)); > + ASSERT_EQ(3, sync_regs->gprs[0]); > + ASSERT_EQ(skeyvalue, sync_regs->gprs[1]); > + uc_assert_diag44(self); Rest LGTM