12191d657SAlexander Graf /* 22191d657SAlexander Graf * This program is free software; you can redistribute it and/or modify 32191d657SAlexander Graf * it under the terms of the GNU General Public License, version 2, as 42191d657SAlexander Graf * published by the Free Software Foundation. 52191d657SAlexander Graf * 62191d657SAlexander Graf * This program is distributed in the hope that it will be useful, 72191d657SAlexander Graf * but WITHOUT ANY WARRANTY; without even the implied warranty of 82191d657SAlexander Graf * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 92191d657SAlexander Graf * GNU General Public License for more details. 102191d657SAlexander Graf * 112191d657SAlexander Graf * You should have received a copy of the GNU General Public License 122191d657SAlexander Graf * along with this program; if not, write to the Free Software 132191d657SAlexander Graf * Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. 142191d657SAlexander Graf * 152191d657SAlexander Graf * Copyright SUSE Linux Products GmbH 2009 162191d657SAlexander Graf * 172191d657SAlexander Graf * Authors: Alexander Graf <agraf@suse.de> 182191d657SAlexander Graf */ 192191d657SAlexander Graf 202191d657SAlexander Graf #include <asm/kvm_ppc.h> 212191d657SAlexander Graf #include <asm/disassemble.h> 222191d657SAlexander Graf #include <asm/kvm_book3s.h> 232191d657SAlexander Graf #include <asm/reg.h> 242191d657SAlexander Graf 252191d657SAlexander Graf #define OP_19_XOP_RFID 18 262191d657SAlexander Graf #define OP_19_XOP_RFI 50 272191d657SAlexander Graf 282191d657SAlexander Graf #define OP_31_XOP_MFMSR 83 292191d657SAlexander Graf #define OP_31_XOP_MTMSR 146 302191d657SAlexander Graf #define OP_31_XOP_MTMSRD 178 312191d657SAlexander Graf #define OP_31_XOP_MTSR 210 322191d657SAlexander Graf #define OP_31_XOP_MTSRIN 242 332191d657SAlexander Graf #define OP_31_XOP_TLBIEL 274 342191d657SAlexander Graf #define OP_31_XOP_TLBIE 306 352191d657SAlexander Graf #define OP_31_XOP_SLBMTE 402 362191d657SAlexander Graf #define OP_31_XOP_SLBIE 434 372191d657SAlexander Graf #define OP_31_XOP_SLBIA 498 382191d657SAlexander Graf #define OP_31_XOP_MFSR 595 392191d657SAlexander Graf #define OP_31_XOP_MFSRIN 659 402191d657SAlexander Graf #define OP_31_XOP_DCBA 758 412191d657SAlexander Graf #define OP_31_XOP_SLBMFEV 851 422191d657SAlexander Graf #define OP_31_XOP_EIOIO 854 432191d657SAlexander Graf #define OP_31_XOP_SLBMFEE 915 442191d657SAlexander Graf 452191d657SAlexander Graf /* DCBZ is actually 1014, but we patch it to 1010 so we get a trap */ 462191d657SAlexander Graf #define OP_31_XOP_DCBZ 1010 472191d657SAlexander Graf 482191d657SAlexander Graf #define OP_LFS 48 492191d657SAlexander Graf #define OP_LFD 50 502191d657SAlexander Graf #define OP_STFS 52 512191d657SAlexander Graf #define OP_STFD 54 522191d657SAlexander Graf 532191d657SAlexander Graf #define SPRN_GQR0 912 542191d657SAlexander Graf #define SPRN_GQR1 913 552191d657SAlexander Graf #define SPRN_GQR2 914 562191d657SAlexander Graf #define SPRN_GQR3 915 572191d657SAlexander Graf #define SPRN_GQR4 916 582191d657SAlexander Graf #define SPRN_GQR5 917 592191d657SAlexander Graf #define SPRN_GQR6 918 602191d657SAlexander Graf #define SPRN_GQR7 919 612191d657SAlexander Graf 6207b0907dSAlexander Graf /* Book3S_32 defines mfsrin(v) - but that messes up our abstract 6307b0907dSAlexander Graf * function pointers, so let's just disable the define. */ 6407b0907dSAlexander Graf #undef mfsrin 6507b0907dSAlexander Graf 66317a8fa3SAlexander Graf enum priv_level { 67317a8fa3SAlexander Graf PRIV_PROBLEM = 0, 68317a8fa3SAlexander Graf PRIV_SUPER = 1, 69317a8fa3SAlexander Graf PRIV_HYPER = 2, 70317a8fa3SAlexander Graf }; 71317a8fa3SAlexander Graf 72317a8fa3SAlexander Graf static bool spr_allowed(struct kvm_vcpu *vcpu, enum priv_level level) 73317a8fa3SAlexander Graf { 74317a8fa3SAlexander Graf /* PAPR VMs only access supervisor SPRs */ 75317a8fa3SAlexander Graf if (vcpu->arch.papr_enabled && (level > PRIV_SUPER)) 76317a8fa3SAlexander Graf return false; 77317a8fa3SAlexander Graf 78317a8fa3SAlexander Graf /* Limit user space to its own small SPR set */ 79317a8fa3SAlexander Graf if ((vcpu->arch.shared->msr & MSR_PR) && level > PRIV_PROBLEM) 80317a8fa3SAlexander Graf return false; 81317a8fa3SAlexander Graf 82317a8fa3SAlexander Graf return true; 83317a8fa3SAlexander Graf } 84317a8fa3SAlexander Graf 852191d657SAlexander Graf int kvmppc_core_emulate_op(struct kvm_run *run, struct kvm_vcpu *vcpu, 862191d657SAlexander Graf unsigned int inst, int *advance) 872191d657SAlexander Graf { 882191d657SAlexander Graf int emulated = EMULATE_DONE; 892191d657SAlexander Graf 902191d657SAlexander Graf switch (get_op(inst)) { 912191d657SAlexander Graf case 19: 922191d657SAlexander Graf switch (get_xop(inst)) { 932191d657SAlexander Graf case OP_19_XOP_RFID: 942191d657SAlexander Graf case OP_19_XOP_RFI: 95de7906c3SAlexander Graf kvmppc_set_pc(vcpu, vcpu->arch.shared->srr0); 96de7906c3SAlexander Graf kvmppc_set_msr(vcpu, vcpu->arch.shared->srr1); 972191d657SAlexander Graf *advance = 0; 982191d657SAlexander Graf break; 992191d657SAlexander Graf 1002191d657SAlexander Graf default: 1012191d657SAlexander Graf emulated = EMULATE_FAIL; 1022191d657SAlexander Graf break; 1032191d657SAlexander Graf } 1042191d657SAlexander Graf break; 1052191d657SAlexander Graf case 31: 1062191d657SAlexander Graf switch (get_xop(inst)) { 1072191d657SAlexander Graf case OP_31_XOP_MFMSR: 108666e7252SAlexander Graf kvmppc_set_gpr(vcpu, get_rt(inst), 109666e7252SAlexander Graf vcpu->arch.shared->msr); 1102191d657SAlexander Graf break; 1112191d657SAlexander Graf case OP_31_XOP_MTMSRD: 1122191d657SAlexander Graf { 1132191d657SAlexander Graf ulong rs = kvmppc_get_gpr(vcpu, get_rs(inst)); 1142191d657SAlexander Graf if (inst & 0x10000) { 115666e7252SAlexander Graf vcpu->arch.shared->msr &= ~(MSR_RI | MSR_EE); 116666e7252SAlexander Graf vcpu->arch.shared->msr |= rs & (MSR_RI | MSR_EE); 1172191d657SAlexander Graf } else 1182191d657SAlexander Graf kvmppc_set_msr(vcpu, rs); 1192191d657SAlexander Graf break; 1202191d657SAlexander Graf } 1212191d657SAlexander Graf case OP_31_XOP_MTMSR: 1222191d657SAlexander Graf kvmppc_set_msr(vcpu, kvmppc_get_gpr(vcpu, get_rs(inst))); 1232191d657SAlexander Graf break; 1242191d657SAlexander Graf case OP_31_XOP_MFSR: 1252191d657SAlexander Graf { 1262191d657SAlexander Graf int srnum; 1272191d657SAlexander Graf 1282191d657SAlexander Graf srnum = kvmppc_get_field(inst, 12 + 32, 15 + 32); 1292191d657SAlexander Graf if (vcpu->arch.mmu.mfsrin) { 1302191d657SAlexander Graf u32 sr; 1312191d657SAlexander Graf sr = vcpu->arch.mmu.mfsrin(vcpu, srnum); 1322191d657SAlexander Graf kvmppc_set_gpr(vcpu, get_rt(inst), sr); 1332191d657SAlexander Graf } 1342191d657SAlexander Graf break; 1352191d657SAlexander Graf } 1362191d657SAlexander Graf case OP_31_XOP_MFSRIN: 1372191d657SAlexander Graf { 1382191d657SAlexander Graf int srnum; 1392191d657SAlexander Graf 1402191d657SAlexander Graf srnum = (kvmppc_get_gpr(vcpu, get_rb(inst)) >> 28) & 0xf; 1412191d657SAlexander Graf if (vcpu->arch.mmu.mfsrin) { 1422191d657SAlexander Graf u32 sr; 1432191d657SAlexander Graf sr = vcpu->arch.mmu.mfsrin(vcpu, srnum); 1442191d657SAlexander Graf kvmppc_set_gpr(vcpu, get_rt(inst), sr); 1452191d657SAlexander Graf } 1462191d657SAlexander Graf break; 1472191d657SAlexander Graf } 1482191d657SAlexander Graf case OP_31_XOP_MTSR: 1492191d657SAlexander Graf vcpu->arch.mmu.mtsrin(vcpu, 1502191d657SAlexander Graf (inst >> 16) & 0xf, 1512191d657SAlexander Graf kvmppc_get_gpr(vcpu, get_rs(inst))); 1522191d657SAlexander Graf break; 1532191d657SAlexander Graf case OP_31_XOP_MTSRIN: 1542191d657SAlexander Graf vcpu->arch.mmu.mtsrin(vcpu, 1552191d657SAlexander Graf (kvmppc_get_gpr(vcpu, get_rb(inst)) >> 28) & 0xf, 1562191d657SAlexander Graf kvmppc_get_gpr(vcpu, get_rs(inst))); 1572191d657SAlexander Graf break; 1582191d657SAlexander Graf case OP_31_XOP_TLBIE: 1592191d657SAlexander Graf case OP_31_XOP_TLBIEL: 1602191d657SAlexander Graf { 1612191d657SAlexander Graf bool large = (inst & 0x00200000) ? true : false; 1622191d657SAlexander Graf ulong addr = kvmppc_get_gpr(vcpu, get_rb(inst)); 1632191d657SAlexander Graf vcpu->arch.mmu.tlbie(vcpu, addr, large); 1642191d657SAlexander Graf break; 1652191d657SAlexander Graf } 1662191d657SAlexander Graf case OP_31_XOP_EIOIO: 1672191d657SAlexander Graf break; 1682191d657SAlexander Graf case OP_31_XOP_SLBMTE: 1692191d657SAlexander Graf if (!vcpu->arch.mmu.slbmte) 1702191d657SAlexander Graf return EMULATE_FAIL; 1712191d657SAlexander Graf 1722191d657SAlexander Graf vcpu->arch.mmu.slbmte(vcpu, 1732191d657SAlexander Graf kvmppc_get_gpr(vcpu, get_rs(inst)), 1742191d657SAlexander Graf kvmppc_get_gpr(vcpu, get_rb(inst))); 1752191d657SAlexander Graf break; 1762191d657SAlexander Graf case OP_31_XOP_SLBIE: 1772191d657SAlexander Graf if (!vcpu->arch.mmu.slbie) 1782191d657SAlexander Graf return EMULATE_FAIL; 1792191d657SAlexander Graf 1802191d657SAlexander Graf vcpu->arch.mmu.slbie(vcpu, 1812191d657SAlexander Graf kvmppc_get_gpr(vcpu, get_rb(inst))); 1822191d657SAlexander Graf break; 1832191d657SAlexander Graf case OP_31_XOP_SLBIA: 1842191d657SAlexander Graf if (!vcpu->arch.mmu.slbia) 1852191d657SAlexander Graf return EMULATE_FAIL; 1862191d657SAlexander Graf 1872191d657SAlexander Graf vcpu->arch.mmu.slbia(vcpu); 1882191d657SAlexander Graf break; 1892191d657SAlexander Graf case OP_31_XOP_SLBMFEE: 1902191d657SAlexander Graf if (!vcpu->arch.mmu.slbmfee) { 1912191d657SAlexander Graf emulated = EMULATE_FAIL; 1922191d657SAlexander Graf } else { 1932191d657SAlexander Graf ulong t, rb; 1942191d657SAlexander Graf 1952191d657SAlexander Graf rb = kvmppc_get_gpr(vcpu, get_rb(inst)); 1962191d657SAlexander Graf t = vcpu->arch.mmu.slbmfee(vcpu, rb); 1972191d657SAlexander Graf kvmppc_set_gpr(vcpu, get_rt(inst), t); 1982191d657SAlexander Graf } 1992191d657SAlexander Graf break; 2002191d657SAlexander Graf case OP_31_XOP_SLBMFEV: 2012191d657SAlexander Graf if (!vcpu->arch.mmu.slbmfev) { 2022191d657SAlexander Graf emulated = EMULATE_FAIL; 2032191d657SAlexander Graf } else { 2042191d657SAlexander Graf ulong t, rb; 2052191d657SAlexander Graf 2062191d657SAlexander Graf rb = kvmppc_get_gpr(vcpu, get_rb(inst)); 2072191d657SAlexander Graf t = vcpu->arch.mmu.slbmfev(vcpu, rb); 2082191d657SAlexander Graf kvmppc_set_gpr(vcpu, get_rt(inst), t); 2092191d657SAlexander Graf } 2102191d657SAlexander Graf break; 2112191d657SAlexander Graf case OP_31_XOP_DCBA: 2122191d657SAlexander Graf /* Gets treated as NOP */ 2132191d657SAlexander Graf break; 2142191d657SAlexander Graf case OP_31_XOP_DCBZ: 2152191d657SAlexander Graf { 2162191d657SAlexander Graf ulong rb = kvmppc_get_gpr(vcpu, get_rb(inst)); 2172191d657SAlexander Graf ulong ra = 0; 2182191d657SAlexander Graf ulong addr, vaddr; 2192191d657SAlexander Graf u32 zeros[8] = { 0, 0, 0, 0, 0, 0, 0, 0 }; 2202191d657SAlexander Graf u32 dsisr; 2212191d657SAlexander Graf int r; 2222191d657SAlexander Graf 2232191d657SAlexander Graf if (get_ra(inst)) 2242191d657SAlexander Graf ra = kvmppc_get_gpr(vcpu, get_ra(inst)); 2252191d657SAlexander Graf 2262191d657SAlexander Graf addr = (ra + rb) & ~31ULL; 227666e7252SAlexander Graf if (!(vcpu->arch.shared->msr & MSR_SF)) 2282191d657SAlexander Graf addr &= 0xffffffff; 2292191d657SAlexander Graf vaddr = addr; 2302191d657SAlexander Graf 2312191d657SAlexander Graf r = kvmppc_st(vcpu, &addr, 32, zeros, true); 2322191d657SAlexander Graf if ((r == -ENOENT) || (r == -EPERM)) { 2332191d657SAlexander Graf *advance = 0; 2345e030186SAlexander Graf vcpu->arch.shared->dar = vaddr; 235c7f38f46SAlexander Graf to_svcpu(vcpu)->fault_dar = vaddr; 2362191d657SAlexander Graf 2372191d657SAlexander Graf dsisr = DSISR_ISSTORE; 2382191d657SAlexander Graf if (r == -ENOENT) 2392191d657SAlexander Graf dsisr |= DSISR_NOHPTE; 2402191d657SAlexander Graf else if (r == -EPERM) 2412191d657SAlexander Graf dsisr |= DSISR_PROTFAULT; 2422191d657SAlexander Graf 243d562de48SAlexander Graf vcpu->arch.shared->dsisr = dsisr; 244c7f38f46SAlexander Graf to_svcpu(vcpu)->fault_dsisr = dsisr; 2452191d657SAlexander Graf 2462191d657SAlexander Graf kvmppc_book3s_queue_irqprio(vcpu, 2472191d657SAlexander Graf BOOK3S_INTERRUPT_DATA_STORAGE); 2482191d657SAlexander Graf } 2492191d657SAlexander Graf 2502191d657SAlexander Graf break; 2512191d657SAlexander Graf } 2522191d657SAlexander Graf default: 2532191d657SAlexander Graf emulated = EMULATE_FAIL; 2542191d657SAlexander Graf } 2552191d657SAlexander Graf break; 2562191d657SAlexander Graf default: 2572191d657SAlexander Graf emulated = EMULATE_FAIL; 2582191d657SAlexander Graf } 2592191d657SAlexander Graf 2602191d657SAlexander Graf if (emulated == EMULATE_FAIL) 2612191d657SAlexander Graf emulated = kvmppc_emulate_paired_single(run, vcpu); 2622191d657SAlexander Graf 2632191d657SAlexander Graf return emulated; 2642191d657SAlexander Graf } 2652191d657SAlexander Graf 2662191d657SAlexander Graf void kvmppc_set_bat(struct kvm_vcpu *vcpu, struct kvmppc_bat *bat, bool upper, 2672191d657SAlexander Graf u32 val) 2682191d657SAlexander Graf { 2692191d657SAlexander Graf if (upper) { 2702191d657SAlexander Graf /* Upper BAT */ 2712191d657SAlexander Graf u32 bl = (val >> 2) & 0x7ff; 2722191d657SAlexander Graf bat->bepi_mask = (~bl << 17); 2732191d657SAlexander Graf bat->bepi = val & 0xfffe0000; 2742191d657SAlexander Graf bat->vs = (val & 2) ? 1 : 0; 2752191d657SAlexander Graf bat->vp = (val & 1) ? 1 : 0; 2762191d657SAlexander Graf bat->raw = (bat->raw & 0xffffffff00000000ULL) | val; 2772191d657SAlexander Graf } else { 2782191d657SAlexander Graf /* Lower BAT */ 2792191d657SAlexander Graf bat->brpn = val & 0xfffe0000; 2802191d657SAlexander Graf bat->wimg = (val >> 3) & 0xf; 2812191d657SAlexander Graf bat->pp = val & 3; 2822191d657SAlexander Graf bat->raw = (bat->raw & 0x00000000ffffffffULL) | ((u64)val << 32); 2832191d657SAlexander Graf } 2842191d657SAlexander Graf } 2852191d657SAlexander Graf 286c1c88e2fSAlexander Graf static struct kvmppc_bat *kvmppc_find_bat(struct kvm_vcpu *vcpu, int sprn) 2872191d657SAlexander Graf { 2882191d657SAlexander Graf struct kvmppc_vcpu_book3s *vcpu_book3s = to_book3s(vcpu); 2892191d657SAlexander Graf struct kvmppc_bat *bat; 2902191d657SAlexander Graf 2912191d657SAlexander Graf switch (sprn) { 2922191d657SAlexander Graf case SPRN_IBAT0U ... SPRN_IBAT3L: 2932191d657SAlexander Graf bat = &vcpu_book3s->ibat[(sprn - SPRN_IBAT0U) / 2]; 2942191d657SAlexander Graf break; 2952191d657SAlexander Graf case SPRN_IBAT4U ... SPRN_IBAT7L: 2962191d657SAlexander Graf bat = &vcpu_book3s->ibat[4 + ((sprn - SPRN_IBAT4U) / 2)]; 2972191d657SAlexander Graf break; 2982191d657SAlexander Graf case SPRN_DBAT0U ... SPRN_DBAT3L: 2992191d657SAlexander Graf bat = &vcpu_book3s->dbat[(sprn - SPRN_DBAT0U) / 2]; 3002191d657SAlexander Graf break; 3012191d657SAlexander Graf case SPRN_DBAT4U ... SPRN_DBAT7L: 3022191d657SAlexander Graf bat = &vcpu_book3s->dbat[4 + ((sprn - SPRN_DBAT4U) / 2)]; 3032191d657SAlexander Graf break; 3042191d657SAlexander Graf default: 3052191d657SAlexander Graf BUG(); 3062191d657SAlexander Graf } 3072191d657SAlexander Graf 308c1c88e2fSAlexander Graf return bat; 3092191d657SAlexander Graf } 3102191d657SAlexander Graf 3112191d657SAlexander Graf int kvmppc_core_emulate_mtspr(struct kvm_vcpu *vcpu, int sprn, int rs) 3122191d657SAlexander Graf { 3132191d657SAlexander Graf int emulated = EMULATE_DONE; 3142191d657SAlexander Graf ulong spr_val = kvmppc_get_gpr(vcpu, rs); 3152191d657SAlexander Graf 3162191d657SAlexander Graf switch (sprn) { 3172191d657SAlexander Graf case SPRN_SDR1: 318317a8fa3SAlexander Graf if (!spr_allowed(vcpu, PRIV_HYPER)) 319317a8fa3SAlexander Graf goto unprivileged; 3202191d657SAlexander Graf to_book3s(vcpu)->sdr1 = spr_val; 3212191d657SAlexander Graf break; 3222191d657SAlexander Graf case SPRN_DSISR: 323d562de48SAlexander Graf vcpu->arch.shared->dsisr = spr_val; 3242191d657SAlexander Graf break; 3252191d657SAlexander Graf case SPRN_DAR: 3265e030186SAlexander Graf vcpu->arch.shared->dar = spr_val; 3272191d657SAlexander Graf break; 3282191d657SAlexander Graf case SPRN_HIOR: 3292191d657SAlexander Graf to_book3s(vcpu)->hior = spr_val; 3302191d657SAlexander Graf break; 3312191d657SAlexander Graf case SPRN_IBAT0U ... SPRN_IBAT3L: 3322191d657SAlexander Graf case SPRN_IBAT4U ... SPRN_IBAT7L: 3332191d657SAlexander Graf case SPRN_DBAT0U ... SPRN_DBAT3L: 3342191d657SAlexander Graf case SPRN_DBAT4U ... SPRN_DBAT7L: 335c1c88e2fSAlexander Graf { 336c1c88e2fSAlexander Graf struct kvmppc_bat *bat = kvmppc_find_bat(vcpu, sprn); 337c1c88e2fSAlexander Graf 338c1c88e2fSAlexander Graf kvmppc_set_bat(vcpu, bat, !(sprn % 2), (u32)spr_val); 3392191d657SAlexander Graf /* BAT writes happen so rarely that we're ok to flush 3402191d657SAlexander Graf * everything here */ 3412191d657SAlexander Graf kvmppc_mmu_pte_flush(vcpu, 0, 0); 3422191d657SAlexander Graf kvmppc_mmu_flush_segments(vcpu); 3432191d657SAlexander Graf break; 344c1c88e2fSAlexander Graf } 3452191d657SAlexander Graf case SPRN_HID0: 3462191d657SAlexander Graf to_book3s(vcpu)->hid[0] = spr_val; 3472191d657SAlexander Graf break; 3482191d657SAlexander Graf case SPRN_HID1: 3492191d657SAlexander Graf to_book3s(vcpu)->hid[1] = spr_val; 3502191d657SAlexander Graf break; 3512191d657SAlexander Graf case SPRN_HID2: 3522191d657SAlexander Graf to_book3s(vcpu)->hid[2] = spr_val; 3532191d657SAlexander Graf break; 3542191d657SAlexander Graf case SPRN_HID2_GEKKO: 3552191d657SAlexander Graf to_book3s(vcpu)->hid[2] = spr_val; 3562191d657SAlexander Graf /* HID2.PSE controls paired single on gekko */ 3572191d657SAlexander Graf switch (vcpu->arch.pvr) { 3582191d657SAlexander Graf case 0x00080200: /* lonestar 2.0 */ 3592191d657SAlexander Graf case 0x00088202: /* lonestar 2.2 */ 3602191d657SAlexander Graf case 0x70000100: /* gekko 1.0 */ 3612191d657SAlexander Graf case 0x00080100: /* gekko 2.0 */ 3622191d657SAlexander Graf case 0x00083203: /* gekko 2.3a */ 3632191d657SAlexander Graf case 0x00083213: /* gekko 2.3b */ 3642191d657SAlexander Graf case 0x00083204: /* gekko 2.4 */ 3652191d657SAlexander Graf case 0x00083214: /* gekko 2.4e (8SE) - retail HW2 */ 366b83d4a9cSAlexander Graf case 0x00087200: /* broadway */ 367b83d4a9cSAlexander Graf if (vcpu->arch.hflags & BOOK3S_HFLAG_NATIVE_PS) { 368b83d4a9cSAlexander Graf /* Native paired singles */ 369b83d4a9cSAlexander Graf } else if (spr_val & (1 << 29)) { /* HID2.PSE */ 3702191d657SAlexander Graf vcpu->arch.hflags |= BOOK3S_HFLAG_PAIRED_SINGLE; 3712191d657SAlexander Graf kvmppc_giveup_ext(vcpu, MSR_FP); 3722191d657SAlexander Graf } else { 3732191d657SAlexander Graf vcpu->arch.hflags &= ~BOOK3S_HFLAG_PAIRED_SINGLE; 3742191d657SAlexander Graf } 3752191d657SAlexander Graf break; 3762191d657SAlexander Graf } 3772191d657SAlexander Graf break; 3782191d657SAlexander Graf case SPRN_HID4: 3792191d657SAlexander Graf case SPRN_HID4_GEKKO: 3802191d657SAlexander Graf to_book3s(vcpu)->hid[4] = spr_val; 3812191d657SAlexander Graf break; 3822191d657SAlexander Graf case SPRN_HID5: 3832191d657SAlexander Graf to_book3s(vcpu)->hid[5] = spr_val; 3842191d657SAlexander Graf /* guest HID5 set can change is_dcbz32 */ 3852191d657SAlexander Graf if (vcpu->arch.mmu.is_dcbz32(vcpu) && 3862191d657SAlexander Graf (mfmsr() & MSR_HV)) 3872191d657SAlexander Graf vcpu->arch.hflags |= BOOK3S_HFLAG_DCBZ32; 3882191d657SAlexander Graf break; 3892191d657SAlexander Graf case SPRN_GQR0: 3902191d657SAlexander Graf case SPRN_GQR1: 3912191d657SAlexander Graf case SPRN_GQR2: 3922191d657SAlexander Graf case SPRN_GQR3: 3932191d657SAlexander Graf case SPRN_GQR4: 3942191d657SAlexander Graf case SPRN_GQR5: 3952191d657SAlexander Graf case SPRN_GQR6: 3962191d657SAlexander Graf case SPRN_GQR7: 3972191d657SAlexander Graf to_book3s(vcpu)->gqr[sprn - SPRN_GQR0] = spr_val; 3982191d657SAlexander Graf break; 3992191d657SAlexander Graf case SPRN_ICTC: 4002191d657SAlexander Graf case SPRN_THRM1: 4012191d657SAlexander Graf case SPRN_THRM2: 4022191d657SAlexander Graf case SPRN_THRM3: 4032191d657SAlexander Graf case SPRN_CTRLF: 4042191d657SAlexander Graf case SPRN_CTRLT: 4052191d657SAlexander Graf case SPRN_L2CR: 4062191d657SAlexander Graf case SPRN_MMCR0_GEKKO: 4072191d657SAlexander Graf case SPRN_MMCR1_GEKKO: 4082191d657SAlexander Graf case SPRN_PMC1_GEKKO: 4092191d657SAlexander Graf case SPRN_PMC2_GEKKO: 4102191d657SAlexander Graf case SPRN_PMC3_GEKKO: 4112191d657SAlexander Graf case SPRN_PMC4_GEKKO: 4122191d657SAlexander Graf case SPRN_WPAR_GEKKO: 4132191d657SAlexander Graf break; 414317a8fa3SAlexander Graf unprivileged: 4152191d657SAlexander Graf default: 4162191d657SAlexander Graf printk(KERN_INFO "KVM: invalid SPR write: %d\n", sprn); 4172191d657SAlexander Graf #ifndef DEBUG_SPR 4182191d657SAlexander Graf emulated = EMULATE_FAIL; 4192191d657SAlexander Graf #endif 4202191d657SAlexander Graf break; 4212191d657SAlexander Graf } 4222191d657SAlexander Graf 4232191d657SAlexander Graf return emulated; 4242191d657SAlexander Graf } 4252191d657SAlexander Graf 4262191d657SAlexander Graf int kvmppc_core_emulate_mfspr(struct kvm_vcpu *vcpu, int sprn, int rt) 4272191d657SAlexander Graf { 4282191d657SAlexander Graf int emulated = EMULATE_DONE; 4292191d657SAlexander Graf 4302191d657SAlexander Graf switch (sprn) { 4312191d657SAlexander Graf case SPRN_IBAT0U ... SPRN_IBAT3L: 4322191d657SAlexander Graf case SPRN_IBAT4U ... SPRN_IBAT7L: 4332191d657SAlexander Graf case SPRN_DBAT0U ... SPRN_DBAT3L: 4342191d657SAlexander Graf case SPRN_DBAT4U ... SPRN_DBAT7L: 435c1c88e2fSAlexander Graf { 436c1c88e2fSAlexander Graf struct kvmppc_bat *bat = kvmppc_find_bat(vcpu, sprn); 437c1c88e2fSAlexander Graf 438c1c88e2fSAlexander Graf if (sprn % 2) 439c1c88e2fSAlexander Graf kvmppc_set_gpr(vcpu, rt, bat->raw >> 32); 440c1c88e2fSAlexander Graf else 441c1c88e2fSAlexander Graf kvmppc_set_gpr(vcpu, rt, bat->raw); 442c1c88e2fSAlexander Graf 4432191d657SAlexander Graf break; 444c1c88e2fSAlexander Graf } 4452191d657SAlexander Graf case SPRN_SDR1: 446317a8fa3SAlexander Graf if (!spr_allowed(vcpu, PRIV_HYPER)) 447317a8fa3SAlexander Graf goto unprivileged; 4482191d657SAlexander Graf kvmppc_set_gpr(vcpu, rt, to_book3s(vcpu)->sdr1); 4492191d657SAlexander Graf break; 4502191d657SAlexander Graf case SPRN_DSISR: 451d562de48SAlexander Graf kvmppc_set_gpr(vcpu, rt, vcpu->arch.shared->dsisr); 4522191d657SAlexander Graf break; 4532191d657SAlexander Graf case SPRN_DAR: 4545e030186SAlexander Graf kvmppc_set_gpr(vcpu, rt, vcpu->arch.shared->dar); 4552191d657SAlexander Graf break; 4562191d657SAlexander Graf case SPRN_HIOR: 4572191d657SAlexander Graf kvmppc_set_gpr(vcpu, rt, to_book3s(vcpu)->hior); 4582191d657SAlexander Graf break; 4592191d657SAlexander Graf case SPRN_HID0: 4602191d657SAlexander Graf kvmppc_set_gpr(vcpu, rt, to_book3s(vcpu)->hid[0]); 4612191d657SAlexander Graf break; 4622191d657SAlexander Graf case SPRN_HID1: 4632191d657SAlexander Graf kvmppc_set_gpr(vcpu, rt, to_book3s(vcpu)->hid[1]); 4642191d657SAlexander Graf break; 4652191d657SAlexander Graf case SPRN_HID2: 4662191d657SAlexander Graf case SPRN_HID2_GEKKO: 4672191d657SAlexander Graf kvmppc_set_gpr(vcpu, rt, to_book3s(vcpu)->hid[2]); 4682191d657SAlexander Graf break; 4692191d657SAlexander Graf case SPRN_HID4: 4702191d657SAlexander Graf case SPRN_HID4_GEKKO: 4712191d657SAlexander Graf kvmppc_set_gpr(vcpu, rt, to_book3s(vcpu)->hid[4]); 4722191d657SAlexander Graf break; 4732191d657SAlexander Graf case SPRN_HID5: 4742191d657SAlexander Graf kvmppc_set_gpr(vcpu, rt, to_book3s(vcpu)->hid[5]); 4752191d657SAlexander Graf break; 4762191d657SAlexander Graf case SPRN_GQR0: 4772191d657SAlexander Graf case SPRN_GQR1: 4782191d657SAlexander Graf case SPRN_GQR2: 4792191d657SAlexander Graf case SPRN_GQR3: 4802191d657SAlexander Graf case SPRN_GQR4: 4812191d657SAlexander Graf case SPRN_GQR5: 4822191d657SAlexander Graf case SPRN_GQR6: 4832191d657SAlexander Graf case SPRN_GQR7: 4842191d657SAlexander Graf kvmppc_set_gpr(vcpu, rt, 4852191d657SAlexander Graf to_book3s(vcpu)->gqr[sprn - SPRN_GQR0]); 4862191d657SAlexander Graf break; 4872191d657SAlexander Graf case SPRN_THRM1: 4882191d657SAlexander Graf case SPRN_THRM2: 4892191d657SAlexander Graf case SPRN_THRM3: 4902191d657SAlexander Graf case SPRN_CTRLF: 4912191d657SAlexander Graf case SPRN_CTRLT: 4922191d657SAlexander Graf case SPRN_L2CR: 4932191d657SAlexander Graf case SPRN_MMCR0_GEKKO: 4942191d657SAlexander Graf case SPRN_MMCR1_GEKKO: 4952191d657SAlexander Graf case SPRN_PMC1_GEKKO: 4962191d657SAlexander Graf case SPRN_PMC2_GEKKO: 4972191d657SAlexander Graf case SPRN_PMC3_GEKKO: 4982191d657SAlexander Graf case SPRN_PMC4_GEKKO: 4992191d657SAlexander Graf case SPRN_WPAR_GEKKO: 5002191d657SAlexander Graf kvmppc_set_gpr(vcpu, rt, 0); 5012191d657SAlexander Graf break; 5022191d657SAlexander Graf default: 503317a8fa3SAlexander Graf unprivileged: 5042191d657SAlexander Graf printk(KERN_INFO "KVM: invalid SPR read: %d\n", sprn); 5052191d657SAlexander Graf #ifndef DEBUG_SPR 5062191d657SAlexander Graf emulated = EMULATE_FAIL; 5072191d657SAlexander Graf #endif 5082191d657SAlexander Graf break; 5092191d657SAlexander Graf } 5102191d657SAlexander Graf 5112191d657SAlexander Graf return emulated; 5122191d657SAlexander Graf } 5132191d657SAlexander Graf 5142191d657SAlexander Graf u32 kvmppc_alignment_dsisr(struct kvm_vcpu *vcpu, unsigned int inst) 5152191d657SAlexander Graf { 5162191d657SAlexander Graf u32 dsisr = 0; 5172191d657SAlexander Graf 5182191d657SAlexander Graf /* 5192191d657SAlexander Graf * This is what the spec says about DSISR bits (not mentioned = 0): 5202191d657SAlexander Graf * 5212191d657SAlexander Graf * 12:13 [DS] Set to bits 30:31 5222191d657SAlexander Graf * 15:16 [X] Set to bits 29:30 5232191d657SAlexander Graf * 17 [X] Set to bit 25 5242191d657SAlexander Graf * [D/DS] Set to bit 5 5252191d657SAlexander Graf * 18:21 [X] Set to bits 21:24 5262191d657SAlexander Graf * [D/DS] Set to bits 1:4 5272191d657SAlexander Graf * 22:26 Set to bits 6:10 (RT/RS/FRT/FRS) 5282191d657SAlexander Graf * 27:31 Set to bits 11:15 (RA) 5292191d657SAlexander Graf */ 5302191d657SAlexander Graf 5312191d657SAlexander Graf switch (get_op(inst)) { 5322191d657SAlexander Graf /* D-form */ 5332191d657SAlexander Graf case OP_LFS: 5342191d657SAlexander Graf case OP_LFD: 5352191d657SAlexander Graf case OP_STFD: 5362191d657SAlexander Graf case OP_STFS: 5372191d657SAlexander Graf dsisr |= (inst >> 12) & 0x4000; /* bit 17 */ 5382191d657SAlexander Graf dsisr |= (inst >> 17) & 0x3c00; /* bits 18:21 */ 5392191d657SAlexander Graf break; 5402191d657SAlexander Graf /* X-form */ 5412191d657SAlexander Graf case 31: 5422191d657SAlexander Graf dsisr |= (inst << 14) & 0x18000; /* bits 15:16 */ 5432191d657SAlexander Graf dsisr |= (inst << 8) & 0x04000; /* bit 17 */ 5442191d657SAlexander Graf dsisr |= (inst << 3) & 0x03c00; /* bits 18:21 */ 5452191d657SAlexander Graf break; 5462191d657SAlexander Graf default: 5472191d657SAlexander Graf printk(KERN_INFO "KVM: Unaligned instruction 0x%x\n", inst); 5482191d657SAlexander Graf break; 5492191d657SAlexander Graf } 5502191d657SAlexander Graf 5512191d657SAlexander Graf dsisr |= (inst >> 16) & 0x03ff; /* bits 22:31 */ 5522191d657SAlexander Graf 5532191d657SAlexander Graf return dsisr; 5542191d657SAlexander Graf } 5552191d657SAlexander Graf 5562191d657SAlexander Graf ulong kvmppc_alignment_dar(struct kvm_vcpu *vcpu, unsigned int inst) 5572191d657SAlexander Graf { 5582191d657SAlexander Graf ulong dar = 0; 5592191d657SAlexander Graf ulong ra; 5602191d657SAlexander Graf 5612191d657SAlexander Graf switch (get_op(inst)) { 5622191d657SAlexander Graf case OP_LFS: 5632191d657SAlexander Graf case OP_LFD: 5642191d657SAlexander Graf case OP_STFD: 5652191d657SAlexander Graf case OP_STFS: 5662191d657SAlexander Graf ra = get_ra(inst); 5672191d657SAlexander Graf if (ra) 5682191d657SAlexander Graf dar = kvmppc_get_gpr(vcpu, ra); 5692191d657SAlexander Graf dar += (s32)((s16)inst); 5702191d657SAlexander Graf break; 5712191d657SAlexander Graf case 31: 5722191d657SAlexander Graf ra = get_ra(inst); 5732191d657SAlexander Graf if (ra) 5742191d657SAlexander Graf dar = kvmppc_get_gpr(vcpu, ra); 5752191d657SAlexander Graf dar += kvmppc_get_gpr(vcpu, get_rb(inst)); 5762191d657SAlexander Graf break; 5772191d657SAlexander Graf default: 5782191d657SAlexander Graf printk(KERN_INFO "KVM: Unaligned instruction 0x%x\n", inst); 5792191d657SAlexander Graf break; 5802191d657SAlexander Graf } 5812191d657SAlexander Graf 5822191d657SAlexander Graf return dar; 5832191d657SAlexander Graf } 584