176 static void setup_32bit_idt(struct kvm_sregs* sregs, char* host_mem, uintptr_t guest_mem)  in setup_32bit_idt()  argument
178 	sregs->idt.base = guest_mem + ADDR_VAR_IDT;  in setup_32bit_idt()
179 	sregs->idt.limit = 0x1ff;  in setup_32bit_idt()
180 	uint64* idt = (uint64*)(host_mem + sregs->idt.base);  in setup_32bit_idt()
229 static void setup_64bit_idt(struct kvm_sregs* sregs, char* host_mem, uintptr_t guest_mem)  in setup_64bit_idt()  argument
231 	sregs->idt.base = guest_mem + ADDR_VAR_IDT;  in setup_64bit_idt()
232 	sregs->idt.limit = 0x1ff;  in setup_64bit_idt()
233 	uint64* idt = (uint64*)(host_mem + sregs->idt.base);  in setup_64bit_idt()
317 	struct kvm_sregs sregs;  in syz_kvm_setup_cpu()  local
318 	if (ioctl(cpufd, KVM_GET_SREGS, &sregs))  in syz_kvm_setup_cpu()
326 	sregs.gdt.base = guest_mem + ADDR_GDT;  in syz_kvm_setup_cpu()
327 	sregs.gdt.limit = 256 * sizeof(uint64) - 1;  in syz_kvm_setup_cpu()
328 	uint64* gdt = (uint64*)(host_mem + sregs.gdt.base);  in syz_kvm_setup_cpu()
341 	sregs.ldt = seg_ldt;  in syz_kvm_setup_cpu()
342 	uint64* ldt = (uint64*)(host_mem + sregs.ldt.base);  in syz_kvm_setup_cpu()
500 				sregs.cs = seg_cs16;  in syz_kvm_setup_cpu()
501 				sregs.ds = sregs.es = sregs.fs = sregs.gs = sregs.ss = seg_ds16;  in syz_kvm_setup_cpu()
502 				sregs.cr0 |= CR0_PE;  in syz_kvm_setup_cpu()
504 				sregs.cs.selector = 0;  in syz_kvm_setup_cpu()
505 				sregs.cs.base = 0;  in syz_kvm_setup_cpu()
513 			sregs.cs = seg_cs32;  in syz_kvm_setup_cpu()
514 			sregs.ds = sregs.es = sregs.fs = sregs.gs = sregs.ss = seg_ds32;  in syz_kvm_setup_cpu()
515 			sregs.cr0 |= CR0_PE;  in syz_kvm_setup_cpu()
516 			sregs.efer |= EFER_SCE;  in syz_kvm_setup_cpu()
519 			setup_32bit_idt(&sregs, host_mem, guest_mem);  in syz_kvm_setup_cpu()
526 				sregs.cr3 = pd_addr;  in syz_kvm_setup_cpu()
527 				sregs.cr4 |= CR4_PSE;  in syz_kvm_setup_cpu()
536 			sregs.cs.selector = 0;  in syz_kvm_setup_cpu()
537 			sregs.cs.base = 0;  in syz_kvm_setup_cpu()
541 			sregs.cs = seg_cs16;  in syz_kvm_setup_cpu()
542 			sregs.ds = sregs.es = sregs.fs = sregs.gs = sregs.ss = seg_ds16;  in syz_kvm_setup_cpu()
547 			sregs.cr0 |= CR0_PE;  in syz_kvm_setup_cpu()
548 			sregs.cs = seg_cs16;  in syz_kvm_setup_cpu()
549 			sregs.ds = sregs.es = sregs.fs = sregs.gs = sregs.ss = seg_ds16;  in syz_kvm_setup_cpu()
552 		sregs.cr0 |= CR0_PE;  in syz_kvm_setup_cpu()
553 		sregs.efer |= EFER_SCE;  in syz_kvm_setup_cpu()
556 		setup_32bit_idt(&sregs, host_mem, guest_mem);  in syz_kvm_setup_cpu()
559 			sregs.cs = seg_cs32;  in syz_kvm_setup_cpu()
560 			sregs.ds = sregs.es = sregs.fs = sregs.gs = sregs.ss = seg_ds32;  in syz_kvm_setup_cpu()
567 			sregs.cs = seg_cs32;  in syz_kvm_setup_cpu()
568 			sregs.ds = sregs.es = sregs.fs = sregs.gs = sregs.ss = seg_ds32;  in syz_kvm_setup_cpu()
574 			sregs.cr3 = pd_addr;  in syz_kvm_setup_cpu()
575 			sregs.cr4 |= CR4_PSE;  in syz_kvm_setup_cpu()
580 			sregs.cs = seg_cs32_cpl3;  in syz_kvm_setup_cpu()
581 			sregs.ds = sregs.es = sregs.fs = sregs.gs = sregs.ss = seg_ds32_cpl3;  in syz_kvm_setup_cpu()
583 			sregs.cs = seg_cs32;  in syz_kvm_setup_cpu()
584 			sregs.ds = sregs.es = sregs.fs = sregs.gs = sregs.ss = seg_ds32;  in syz_kvm_setup_cpu()
587 		sregs.efer |= EFER_LME | EFER_SCE;  in syz_kvm_setup_cpu()
588 		sregs.cr0 |= CR0_PE;  in syz_kvm_setup_cpu()
591 		setup_64bit_idt(&sregs, host_mem, guest_mem);  in syz_kvm_setup_cpu()
593 		sregs.cs = seg_cs32;  in syz_kvm_setup_cpu()
594 		sregs.ds = sregs.es = sregs.fs = sregs.gs = sregs.ss = seg_ds32;  in syz_kvm_setup_cpu()
605 		sregs.cr3 = pml4_addr;  in syz_kvm_setup_cpu()
606 		sregs.cr4 |= CR4_PAE;  in syz_kvm_setup_cpu()
609 			sregs.cr0 |= CR0_NE;  in syz_kvm_setup_cpu()
657 	tss32.cr3 = sregs.cr3;  in syz_kvm_setup_cpu()
667 	tss32.cr3 = sregs.cr3;  in syz_kvm_setup_cpu()
671 	tss32.cr3 = sregs.cr3;  in syz_kvm_setup_cpu()
730 			sregs.cr0 ^= val & (CR0_MP | CR0_EM | CR0_ET | CR0_NE | CR0_WP | CR0_AM | CR0_NW | CR0_CD);  in syz_kvm_setup_cpu()
733 			sregs.cr4 ^= val & (CR4_VME | CR4_PVI | CR4_TSD | CR4_DE | CR4_MCE | CR4_PGE | CR4_PCE |  in syz_kvm_setup_cpu()
738 			sregs.efer ^= val & (EFER_SCE | EFER_NXE | EFER_SVME | EFER_LMSLE | EFER_FFXSR | EFER_TCE);  in syz_kvm_setup_cpu()
807 	if (ioctl(cpufd, KVM_SET_SREGS, &sregs))  in syz_kvm_setup_cpu()