powerpc/kvm/book3s_hv.c

130 /* If set, guests are allowed to create and control nested guests */
131 static bool nested = true;
132 module_param(nested, bool, S_IRUGO | S_IWUSR);
133 MODULE_PARM_DESC(nested, "Enable nested virtualization (only on POWER9)");
187 	/* If we're a nested hypervisor, fall back to ordinary IPIs for now */
1081  * H_RPT_INVALIDATE hcall handler for nested guests.
1083  * Handles only nested process-scoped invalidation requests in L0.
1101 	do_h_rpt_invalidate_prt(pid, vcpu->arch.nested->shadow_lpid,
1120 	 * Partition-scoped invalidation for nested guests.
1749 				 * Radix guests can not run PR KVM or nested HV
1974 		pr_emerg("KVM trap in HV mode while nested!\n");
1996 	/* These need to go to the nested HV */
2097 		 * The H_RPT_INVALIDATE hcalls issued by nested
3240 	struct kvm_nested_guest *nested = vcpu->arch.nested;
3244 	if (nested)
3245 		need_tlb_flush = &nested->need_tlb_flush;
3293 	struct kvm_nested_guest *nested = vcpu->arch.nested;
3300 	if (nested)
3301 		prev_cpu = nested->prev_cpu[vcpu->arch.nested_vcpu_id];
3325 		if (nested)
3326 			nested->prev_cpu[vcpu->arch.nested_vcpu_id] = pcpu;
4199 	if (vcpu->arch.nested) {
4200 		hvregs.lpid = vcpu->arch.nested->shadow_lpid;
4217 	 * nested hv case which needs to abort the hcall or zero the
4262 	struct kvm_nested_guest *nested = vcpu->arch.nested;
4271 	else if (*tb >= time_limit) /* nested time limit */
4285 		if (trap == BOOK3S_INTERRUPT_SYSCALL && !nested &&
4292 	} else if (nested) {
4721 	struct kvm_nested_guest *nested = vcpu->arch.nested;
4782 	if (!nested) {
4788 			 * For nested HV, don't synthesize but always pass MER,
4857 	 * entering a nested guest in which case the decrementer is now owned
4869 		if (!nested)
5085 	/* If running as a nested hypervisor, we don't support HPT guests */
5780 	/* POWER9 in radix mode is capable of being a nested hypervisor. */
5991 		/* If we're a nested hypervisor, we currently only support radix */
6118 	/* If we're a nested hypervisor, we currently only support radix */
6156 	if (!nested)
6183 	/* For now quadrants are the only way to access nested guest memory */
6184 	if (rc && vcpu->arch.nested)
6202 	/* For now quadrants are the only way to access nested guest memory */
6203 	if (rc && vcpu->arch.nested)