vsie.c (fe722d13e3638470a7eef5dad6c9ded7f6653773) vsie.c (730cd632c4e485b90f97fe998e300045da094938)
1/*
2 * kvm nested virtualization support for s390x
3 *
4 * Copyright IBM Corp. 2016
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License (version 2 only)
8 * as published by the Free Software Foundation.

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112 newflags |= CPUSTAT_GED2;
113 }
114 if (test_kvm_cpu_feat(vcpu->kvm, KVM_S390_VM_CPU_FEAT_GPERE))
115 newflags |= cpuflags & CPUSTAT_P;
116 if (test_kvm_cpu_feat(vcpu->kvm, KVM_S390_VM_CPU_FEAT_GSLS))
117 newflags |= cpuflags & CPUSTAT_SM;
118 if (test_kvm_cpu_feat(vcpu->kvm, KVM_S390_VM_CPU_FEAT_IBS))
119 newflags |= cpuflags & CPUSTAT_IBS;
1/*
2 * kvm nested virtualization support for s390x
3 *
4 * Copyright IBM Corp. 2016
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License (version 2 only)
8 * as published by the Free Software Foundation.

--- 103 unchanged lines hidden (view full) ---

112 newflags |= CPUSTAT_GED2;
113 }
114 if (test_kvm_cpu_feat(vcpu->kvm, KVM_S390_VM_CPU_FEAT_GPERE))
115 newflags |= cpuflags & CPUSTAT_P;
116 if (test_kvm_cpu_feat(vcpu->kvm, KVM_S390_VM_CPU_FEAT_GSLS))
117 newflags |= cpuflags & CPUSTAT_SM;
118 if (test_kvm_cpu_feat(vcpu->kvm, KVM_S390_VM_CPU_FEAT_IBS))
119 newflags |= cpuflags & CPUSTAT_IBS;
120 if (test_kvm_cpu_feat(vcpu->kvm, KVM_S390_VM_CPU_FEAT_KSS))
121 newflags |= cpuflags & CPUSTAT_KSS;
120
121 atomic_set(&scb_s->cpuflags, newflags);
122 return 0;
123}
124
125/*
126 * Create a shadow copy of the crycb block and setup key wrapping, if
127 * requested for guest 3 and enabled for guest 2.

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284 scb_s->lctl = scb_o->lctl;
285 scb_s->svcc = scb_o->svcc;
286 scb_s->ictl = scb_o->ictl;
287 /*
288 * SKEY handling functions can't deal with false setting of PTE invalid
289 * bits. Therefore we cannot provide interpretation and would later
290 * have to provide own emulation handlers.
291 */
122
123 atomic_set(&scb_s->cpuflags, newflags);
124 return 0;
125}
126
127/*
128 * Create a shadow copy of the crycb block and setup key wrapping, if
129 * requested for guest 3 and enabled for guest 2.

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286 scb_s->lctl = scb_o->lctl;
287 scb_s->svcc = scb_o->svcc;
288 scb_s->ictl = scb_o->ictl;
289 /*
290 * SKEY handling functions can't deal with false setting of PTE invalid
291 * bits. Therefore we cannot provide interpretation and would later
292 * have to provide own emulation handlers.
293 */
292 scb_s->ictl |= ICTL_ISKE | ICTL_SSKE | ICTL_RRBE;
294 if (!(atomic_read(&scb_s->cpuflags) & CPUSTAT_KSS))
295 scb_s->ictl |= ICTL_ISKE | ICTL_SSKE | ICTL_RRBE;
296
293 scb_s->icpua = scb_o->icpua;
294
295 if (!(atomic_read(&scb_s->cpuflags) & CPUSTAT_SM))
296 new_mso = scb_o->mso & 0xfffffffffff00000UL;
297 /* if the hva of the prefix changes, we have to remap the prefix */
298 if (scb_s->mso != new_mso || scb_s->prefix != scb_o->prefix)
299 prefix_unmapped(vsie_page);
300 /* SIE will do mso/msl validity and exception checks for us */

--- 834 unchanged lines hidden --- 		297 scb_s->icpua = scb_o->icpua;
298
299 if (!(atomic_read(&scb_s->cpuflags) & CPUSTAT_SM))
300 new_mso = scb_o->mso & 0xfffffffffff00000UL;
301 /* if the hva of the prefix changes, we have to remap the prefix */
302 if (scb_s->mso != new_mso || scb_s->prefix != scb_o->prefix)
303 prefix_unmapped(vsie_page);
304 /* SIE will do mso/msl validity and exception checks for us */

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