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> 2495327d08SBenjamin Herrenschmidt #include <asm/switch_to.h> 25b0a94d4eSPaul Mackerras #include <asm/time.h> 262191d657SAlexander Graf 272191d657SAlexander Graf #define OP_19_XOP_RFID 18 282191d657SAlexander Graf #define OP_19_XOP_RFI 50 292191d657SAlexander Graf 302191d657SAlexander Graf #define OP_31_XOP_MFMSR 83 312191d657SAlexander Graf #define OP_31_XOP_MTMSR 146 322191d657SAlexander Graf #define OP_31_XOP_MTMSRD 178 332191d657SAlexander Graf #define OP_31_XOP_MTSR 210 342191d657SAlexander Graf #define OP_31_XOP_MTSRIN 242 352191d657SAlexander Graf #define OP_31_XOP_TLBIEL 274 362191d657SAlexander Graf #define OP_31_XOP_TLBIE 306 3750c7bb80SAlexander Graf /* Opcode is officially reserved, reuse it as sc 1 when sc 1 doesn't trap */ 3850c7bb80SAlexander Graf #define OP_31_XOP_FAKE_SC1 308 392191d657SAlexander Graf #define OP_31_XOP_SLBMTE 402 402191d657SAlexander Graf #define OP_31_XOP_SLBIE 434 412191d657SAlexander Graf #define OP_31_XOP_SLBIA 498 422191d657SAlexander Graf #define OP_31_XOP_MFSR 595 432191d657SAlexander Graf #define OP_31_XOP_MFSRIN 659 442191d657SAlexander Graf #define OP_31_XOP_DCBA 758 452191d657SAlexander Graf #define OP_31_XOP_SLBMFEV 851 462191d657SAlexander Graf #define OP_31_XOP_EIOIO 854 472191d657SAlexander Graf #define OP_31_XOP_SLBMFEE 915 482191d657SAlexander Graf 492191d657SAlexander Graf /* DCBZ is actually 1014, but we patch it to 1010 so we get a trap */ 502191d657SAlexander Graf #define OP_31_XOP_DCBZ 1010 512191d657SAlexander Graf 522191d657SAlexander Graf #define OP_LFS 48 532191d657SAlexander Graf #define OP_LFD 50 542191d657SAlexander Graf #define OP_STFS 52 552191d657SAlexander Graf #define OP_STFD 54 562191d657SAlexander Graf 572191d657SAlexander Graf #define SPRN_GQR0 912 582191d657SAlexander Graf #define SPRN_GQR1 913 592191d657SAlexander Graf #define SPRN_GQR2 914 602191d657SAlexander Graf #define SPRN_GQR3 915 612191d657SAlexander Graf #define SPRN_GQR4 916 622191d657SAlexander Graf #define SPRN_GQR5 917 632191d657SAlexander Graf #define SPRN_GQR6 918 642191d657SAlexander Graf #define SPRN_GQR7 919 652191d657SAlexander Graf 6607b0907dSAlexander Graf /* Book3S_32 defines mfsrin(v) - but that messes up our abstract 6707b0907dSAlexander Graf * function pointers, so let's just disable the define. */ 6807b0907dSAlexander Graf #undef mfsrin 6907b0907dSAlexander Graf 70317a8fa3SAlexander Graf enum priv_level { 71317a8fa3SAlexander Graf PRIV_PROBLEM = 0, 72317a8fa3SAlexander Graf PRIV_SUPER = 1, 73317a8fa3SAlexander Graf PRIV_HYPER = 2, 74317a8fa3SAlexander Graf }; 75317a8fa3SAlexander Graf 76317a8fa3SAlexander Graf static bool spr_allowed(struct kvm_vcpu *vcpu, enum priv_level level) 77317a8fa3SAlexander Graf { 78317a8fa3SAlexander Graf /* PAPR VMs only access supervisor SPRs */ 79317a8fa3SAlexander Graf if (vcpu->arch.papr_enabled && (level > PRIV_SUPER)) 80317a8fa3SAlexander Graf return false; 81317a8fa3SAlexander Graf 82317a8fa3SAlexander Graf /* Limit user space to its own small SPR set */ 835deb8e7aSAlexander Graf if ((kvmppc_get_msr(vcpu) & MSR_PR) && level > PRIV_PROBLEM) 84317a8fa3SAlexander Graf return false; 85317a8fa3SAlexander Graf 86317a8fa3SAlexander Graf return true; 87317a8fa3SAlexander Graf } 88317a8fa3SAlexander Graf 893a167beaSAneesh Kumar K.V int kvmppc_core_emulate_op_pr(struct kvm_run *run, struct kvm_vcpu *vcpu, 902191d657SAlexander Graf unsigned int inst, int *advance) 912191d657SAlexander Graf { 922191d657SAlexander Graf int emulated = EMULATE_DONE; 93c46dc9a8SAlexander Graf int rt = get_rt(inst); 94c46dc9a8SAlexander Graf int rs = get_rs(inst); 95c46dc9a8SAlexander Graf int ra = get_ra(inst); 96c46dc9a8SAlexander Graf int rb = get_rb(inst); 9742188365SAlexander Graf u32 inst_sc = 0x44000002; 982191d657SAlexander Graf 992191d657SAlexander Graf switch (get_op(inst)) { 10042188365SAlexander Graf case 0: 10142188365SAlexander Graf emulated = EMULATE_FAIL; 10242188365SAlexander Graf if ((kvmppc_get_msr(vcpu) & MSR_LE) && 10342188365SAlexander Graf (inst == swab32(inst_sc))) { 10442188365SAlexander Graf /* 10542188365SAlexander Graf * This is the byte reversed syscall instruction of our 10642188365SAlexander Graf * hypercall handler. Early versions of LE Linux didn't 10742188365SAlexander Graf * swap the instructions correctly and ended up in 10842188365SAlexander Graf * illegal instructions. 10942188365SAlexander Graf * Just always fail hypercalls on these broken systems. 11042188365SAlexander Graf */ 11142188365SAlexander Graf kvmppc_set_gpr(vcpu, 3, EV_UNIMPLEMENTED); 11242188365SAlexander Graf kvmppc_set_pc(vcpu, kvmppc_get_pc(vcpu) + 4); 11342188365SAlexander Graf emulated = EMULATE_DONE; 11442188365SAlexander Graf } 11542188365SAlexander Graf break; 1162191d657SAlexander Graf case 19: 1172191d657SAlexander Graf switch (get_xop(inst)) { 1182191d657SAlexander Graf case OP_19_XOP_RFID: 1192191d657SAlexander Graf case OP_19_XOP_RFI: 1205deb8e7aSAlexander Graf kvmppc_set_pc(vcpu, kvmppc_get_srr0(vcpu)); 1215deb8e7aSAlexander Graf kvmppc_set_msr(vcpu, kvmppc_get_srr1(vcpu)); 1222191d657SAlexander Graf *advance = 0; 1232191d657SAlexander Graf break; 1242191d657SAlexander Graf 1252191d657SAlexander Graf default: 1262191d657SAlexander Graf emulated = EMULATE_FAIL; 1272191d657SAlexander Graf break; 1282191d657SAlexander Graf } 1292191d657SAlexander Graf break; 1302191d657SAlexander Graf case 31: 1312191d657SAlexander Graf switch (get_xop(inst)) { 1322191d657SAlexander Graf case OP_31_XOP_MFMSR: 1335deb8e7aSAlexander Graf kvmppc_set_gpr(vcpu, rt, kvmppc_get_msr(vcpu)); 1342191d657SAlexander Graf break; 1352191d657SAlexander Graf case OP_31_XOP_MTMSRD: 1362191d657SAlexander Graf { 137c46dc9a8SAlexander Graf ulong rs_val = kvmppc_get_gpr(vcpu, rs); 1382191d657SAlexander Graf if (inst & 0x10000) { 1395deb8e7aSAlexander Graf ulong new_msr = kvmppc_get_msr(vcpu); 140c46dc9a8SAlexander Graf new_msr &= ~(MSR_RI | MSR_EE); 141c46dc9a8SAlexander Graf new_msr |= rs_val & (MSR_RI | MSR_EE); 1425deb8e7aSAlexander Graf kvmppc_set_msr_fast(vcpu, new_msr); 1432191d657SAlexander Graf } else 144c46dc9a8SAlexander Graf kvmppc_set_msr(vcpu, rs_val); 1452191d657SAlexander Graf break; 1462191d657SAlexander Graf } 1472191d657SAlexander Graf case OP_31_XOP_MTMSR: 148c46dc9a8SAlexander Graf kvmppc_set_msr(vcpu, kvmppc_get_gpr(vcpu, rs)); 1492191d657SAlexander Graf break; 1502191d657SAlexander Graf case OP_31_XOP_MFSR: 1512191d657SAlexander Graf { 1522191d657SAlexander Graf int srnum; 1532191d657SAlexander Graf 1542191d657SAlexander Graf srnum = kvmppc_get_field(inst, 12 + 32, 15 + 32); 1552191d657SAlexander Graf if (vcpu->arch.mmu.mfsrin) { 1562191d657SAlexander Graf u32 sr; 1572191d657SAlexander Graf sr = vcpu->arch.mmu.mfsrin(vcpu, srnum); 158c46dc9a8SAlexander Graf kvmppc_set_gpr(vcpu, rt, sr); 1592191d657SAlexander Graf } 1602191d657SAlexander Graf break; 1612191d657SAlexander Graf } 1622191d657SAlexander Graf case OP_31_XOP_MFSRIN: 1632191d657SAlexander Graf { 1642191d657SAlexander Graf int srnum; 1652191d657SAlexander Graf 166c46dc9a8SAlexander Graf srnum = (kvmppc_get_gpr(vcpu, rb) >> 28) & 0xf; 1672191d657SAlexander Graf if (vcpu->arch.mmu.mfsrin) { 1682191d657SAlexander Graf u32 sr; 1692191d657SAlexander Graf sr = vcpu->arch.mmu.mfsrin(vcpu, srnum); 170c46dc9a8SAlexander Graf kvmppc_set_gpr(vcpu, rt, sr); 1712191d657SAlexander Graf } 1722191d657SAlexander Graf break; 1732191d657SAlexander Graf } 1742191d657SAlexander Graf case OP_31_XOP_MTSR: 1752191d657SAlexander Graf vcpu->arch.mmu.mtsrin(vcpu, 1762191d657SAlexander Graf (inst >> 16) & 0xf, 177c46dc9a8SAlexander Graf kvmppc_get_gpr(vcpu, rs)); 1782191d657SAlexander Graf break; 1792191d657SAlexander Graf case OP_31_XOP_MTSRIN: 1802191d657SAlexander Graf vcpu->arch.mmu.mtsrin(vcpu, 181c46dc9a8SAlexander Graf (kvmppc_get_gpr(vcpu, rb) >> 28) & 0xf, 182c46dc9a8SAlexander Graf kvmppc_get_gpr(vcpu, rs)); 1832191d657SAlexander Graf break; 1842191d657SAlexander Graf case OP_31_XOP_TLBIE: 1852191d657SAlexander Graf case OP_31_XOP_TLBIEL: 1862191d657SAlexander Graf { 1872191d657SAlexander Graf bool large = (inst & 0x00200000) ? true : false; 188c46dc9a8SAlexander Graf ulong addr = kvmppc_get_gpr(vcpu, rb); 1892191d657SAlexander Graf vcpu->arch.mmu.tlbie(vcpu, addr, large); 1902191d657SAlexander Graf break; 1912191d657SAlexander Graf } 1922ba9f0d8SAneesh Kumar K.V #ifdef CONFIG_PPC_BOOK3S_64 19350c7bb80SAlexander Graf case OP_31_XOP_FAKE_SC1: 19450c7bb80SAlexander Graf { 19550c7bb80SAlexander Graf /* SC 1 papr hypercalls */ 19650c7bb80SAlexander Graf ulong cmd = kvmppc_get_gpr(vcpu, 3); 19750c7bb80SAlexander Graf int i; 19850c7bb80SAlexander Graf 1995deb8e7aSAlexander Graf if ((kvmppc_get_msr(vcpu) & MSR_PR) || 20050c7bb80SAlexander Graf !vcpu->arch.papr_enabled) { 20150c7bb80SAlexander Graf emulated = EMULATE_FAIL; 20250c7bb80SAlexander Graf break; 20350c7bb80SAlexander Graf } 20450c7bb80SAlexander Graf 20550c7bb80SAlexander Graf if (kvmppc_h_pr(vcpu, cmd) == EMULATE_DONE) 20650c7bb80SAlexander Graf break; 20750c7bb80SAlexander Graf 20850c7bb80SAlexander Graf run->papr_hcall.nr = cmd; 20950c7bb80SAlexander Graf for (i = 0; i < 9; ++i) { 21050c7bb80SAlexander Graf ulong gpr = kvmppc_get_gpr(vcpu, 4 + i); 21150c7bb80SAlexander Graf run->papr_hcall.args[i] = gpr; 21250c7bb80SAlexander Graf } 21350c7bb80SAlexander Graf 2140f47f9b5SBharat Bhushan run->exit_reason = KVM_EXIT_PAPR_HCALL; 2150f47f9b5SBharat Bhushan vcpu->arch.hcall_needed = 1; 216c402a3f4SBharat Bhushan emulated = EMULATE_EXIT_USER; 21750c7bb80SAlexander Graf break; 21850c7bb80SAlexander Graf } 21950c7bb80SAlexander Graf #endif 2202191d657SAlexander Graf case OP_31_XOP_EIOIO: 2212191d657SAlexander Graf break; 2222191d657SAlexander Graf case OP_31_XOP_SLBMTE: 2232191d657SAlexander Graf if (!vcpu->arch.mmu.slbmte) 2242191d657SAlexander Graf return EMULATE_FAIL; 2252191d657SAlexander Graf 2262191d657SAlexander Graf vcpu->arch.mmu.slbmte(vcpu, 227c46dc9a8SAlexander Graf kvmppc_get_gpr(vcpu, rs), 228c46dc9a8SAlexander Graf kvmppc_get_gpr(vcpu, rb)); 2292191d657SAlexander Graf break; 2302191d657SAlexander Graf case OP_31_XOP_SLBIE: 2312191d657SAlexander Graf if (!vcpu->arch.mmu.slbie) 2322191d657SAlexander Graf return EMULATE_FAIL; 2332191d657SAlexander Graf 2342191d657SAlexander Graf vcpu->arch.mmu.slbie(vcpu, 235c46dc9a8SAlexander Graf kvmppc_get_gpr(vcpu, rb)); 2362191d657SAlexander Graf break; 2372191d657SAlexander Graf case OP_31_XOP_SLBIA: 2382191d657SAlexander Graf if (!vcpu->arch.mmu.slbia) 2392191d657SAlexander Graf return EMULATE_FAIL; 2402191d657SAlexander Graf 2412191d657SAlexander Graf vcpu->arch.mmu.slbia(vcpu); 2422191d657SAlexander Graf break; 2432191d657SAlexander Graf case OP_31_XOP_SLBMFEE: 2442191d657SAlexander Graf if (!vcpu->arch.mmu.slbmfee) { 2452191d657SAlexander Graf emulated = EMULATE_FAIL; 2462191d657SAlexander Graf } else { 247c46dc9a8SAlexander Graf ulong t, rb_val; 2482191d657SAlexander Graf 249c46dc9a8SAlexander Graf rb_val = kvmppc_get_gpr(vcpu, rb); 250c46dc9a8SAlexander Graf t = vcpu->arch.mmu.slbmfee(vcpu, rb_val); 251c46dc9a8SAlexander Graf kvmppc_set_gpr(vcpu, rt, t); 2522191d657SAlexander Graf } 2532191d657SAlexander Graf break; 2542191d657SAlexander Graf case OP_31_XOP_SLBMFEV: 2552191d657SAlexander Graf if (!vcpu->arch.mmu.slbmfev) { 2562191d657SAlexander Graf emulated = EMULATE_FAIL; 2572191d657SAlexander Graf } else { 258c46dc9a8SAlexander Graf ulong t, rb_val; 2592191d657SAlexander Graf 260c46dc9a8SAlexander Graf rb_val = kvmppc_get_gpr(vcpu, rb); 261c46dc9a8SAlexander Graf t = vcpu->arch.mmu.slbmfev(vcpu, rb_val); 262c46dc9a8SAlexander Graf kvmppc_set_gpr(vcpu, rt, t); 2632191d657SAlexander Graf } 2642191d657SAlexander Graf break; 2652191d657SAlexander Graf case OP_31_XOP_DCBA: 2662191d657SAlexander Graf /* Gets treated as NOP */ 2672191d657SAlexander Graf break; 2682191d657SAlexander Graf case OP_31_XOP_DCBZ: 2692191d657SAlexander Graf { 270c46dc9a8SAlexander Graf ulong rb_val = kvmppc_get_gpr(vcpu, rb); 271c46dc9a8SAlexander Graf ulong ra_val = 0; 2722191d657SAlexander Graf ulong addr, vaddr; 2732191d657SAlexander Graf u32 zeros[8] = { 0, 0, 0, 0, 0, 0, 0, 0 }; 2742191d657SAlexander Graf u32 dsisr; 2752191d657SAlexander Graf int r; 2762191d657SAlexander Graf 277c46dc9a8SAlexander Graf if (ra) 278c46dc9a8SAlexander Graf ra_val = kvmppc_get_gpr(vcpu, ra); 2792191d657SAlexander Graf 280c46dc9a8SAlexander Graf addr = (ra_val + rb_val) & ~31ULL; 2815deb8e7aSAlexander Graf if (!(kvmppc_get_msr(vcpu) & MSR_SF)) 2822191d657SAlexander Graf addr &= 0xffffffff; 2832191d657SAlexander Graf vaddr = addr; 2842191d657SAlexander Graf 2852191d657SAlexander Graf r = kvmppc_st(vcpu, &addr, 32, zeros, true); 2862191d657SAlexander Graf if ((r == -ENOENT) || (r == -EPERM)) { 2872191d657SAlexander Graf *advance = 0; 2885deb8e7aSAlexander Graf kvmppc_set_dar(vcpu, vaddr); 289a2d56020SPaul Mackerras vcpu->arch.fault_dar = vaddr; 2902191d657SAlexander Graf 2912191d657SAlexander Graf dsisr = DSISR_ISSTORE; 2922191d657SAlexander Graf if (r == -ENOENT) 2932191d657SAlexander Graf dsisr |= DSISR_NOHPTE; 2942191d657SAlexander Graf else if (r == -EPERM) 2952191d657SAlexander Graf dsisr |= DSISR_PROTFAULT; 2962191d657SAlexander Graf 2975deb8e7aSAlexander Graf kvmppc_set_dsisr(vcpu, dsisr); 298a2d56020SPaul Mackerras vcpu->arch.fault_dsisr = dsisr; 2992191d657SAlexander Graf 3002191d657SAlexander Graf kvmppc_book3s_queue_irqprio(vcpu, 3012191d657SAlexander Graf BOOK3S_INTERRUPT_DATA_STORAGE); 3022191d657SAlexander Graf } 3032191d657SAlexander Graf 3042191d657SAlexander Graf break; 3052191d657SAlexander Graf } 3062191d657SAlexander Graf default: 3072191d657SAlexander Graf emulated = EMULATE_FAIL; 3082191d657SAlexander Graf } 3092191d657SAlexander Graf break; 3102191d657SAlexander Graf default: 3112191d657SAlexander Graf emulated = EMULATE_FAIL; 3122191d657SAlexander Graf } 3132191d657SAlexander Graf 3142191d657SAlexander Graf if (emulated == EMULATE_FAIL) 3152191d657SAlexander Graf emulated = kvmppc_emulate_paired_single(run, vcpu); 3162191d657SAlexander Graf 3172191d657SAlexander Graf return emulated; 3182191d657SAlexander Graf } 3192191d657SAlexander Graf 3202191d657SAlexander Graf void kvmppc_set_bat(struct kvm_vcpu *vcpu, struct kvmppc_bat *bat, bool upper, 3212191d657SAlexander Graf u32 val) 3222191d657SAlexander Graf { 3232191d657SAlexander Graf if (upper) { 3242191d657SAlexander Graf /* Upper BAT */ 3252191d657SAlexander Graf u32 bl = (val >> 2) & 0x7ff; 3262191d657SAlexander Graf bat->bepi_mask = (~bl << 17); 3272191d657SAlexander Graf bat->bepi = val & 0xfffe0000; 3282191d657SAlexander Graf bat->vs = (val & 2) ? 1 : 0; 3292191d657SAlexander Graf bat->vp = (val & 1) ? 1 : 0; 3302191d657SAlexander Graf bat->raw = (bat->raw & 0xffffffff00000000ULL) | val; 3312191d657SAlexander Graf } else { 3322191d657SAlexander Graf /* Lower BAT */ 3332191d657SAlexander Graf bat->brpn = val & 0xfffe0000; 3342191d657SAlexander Graf bat->wimg = (val >> 3) & 0xf; 3352191d657SAlexander Graf bat->pp = val & 3; 3362191d657SAlexander Graf bat->raw = (bat->raw & 0x00000000ffffffffULL) | ((u64)val << 32); 3372191d657SAlexander Graf } 3382191d657SAlexander Graf } 3392191d657SAlexander Graf 340c1c88e2fSAlexander Graf static struct kvmppc_bat *kvmppc_find_bat(struct kvm_vcpu *vcpu, int sprn) 3412191d657SAlexander Graf { 3422191d657SAlexander Graf struct kvmppc_vcpu_book3s *vcpu_book3s = to_book3s(vcpu); 3432191d657SAlexander Graf struct kvmppc_bat *bat; 3442191d657SAlexander Graf 3452191d657SAlexander Graf switch (sprn) { 3462191d657SAlexander Graf case SPRN_IBAT0U ... SPRN_IBAT3L: 3472191d657SAlexander Graf bat = &vcpu_book3s->ibat[(sprn - SPRN_IBAT0U) / 2]; 3482191d657SAlexander Graf break; 3492191d657SAlexander Graf case SPRN_IBAT4U ... SPRN_IBAT7L: 3502191d657SAlexander Graf bat = &vcpu_book3s->ibat[4 + ((sprn - SPRN_IBAT4U) / 2)]; 3512191d657SAlexander Graf break; 3522191d657SAlexander Graf case SPRN_DBAT0U ... SPRN_DBAT3L: 3532191d657SAlexander Graf bat = &vcpu_book3s->dbat[(sprn - SPRN_DBAT0U) / 2]; 3542191d657SAlexander Graf break; 3552191d657SAlexander Graf case SPRN_DBAT4U ... SPRN_DBAT7L: 3562191d657SAlexander Graf bat = &vcpu_book3s->dbat[4 + ((sprn - SPRN_DBAT4U) / 2)]; 3572191d657SAlexander Graf break; 3582191d657SAlexander Graf default: 3592191d657SAlexander Graf BUG(); 3602191d657SAlexander Graf } 3612191d657SAlexander Graf 362c1c88e2fSAlexander Graf return bat; 3632191d657SAlexander Graf } 3642191d657SAlexander Graf 3653a167beaSAneesh Kumar K.V int kvmppc_core_emulate_mtspr_pr(struct kvm_vcpu *vcpu, int sprn, ulong spr_val) 3662191d657SAlexander Graf { 3672191d657SAlexander Graf int emulated = EMULATE_DONE; 3682191d657SAlexander Graf 3692191d657SAlexander Graf switch (sprn) { 3702191d657SAlexander Graf case SPRN_SDR1: 371317a8fa3SAlexander Graf if (!spr_allowed(vcpu, PRIV_HYPER)) 372317a8fa3SAlexander Graf goto unprivileged; 3732191d657SAlexander Graf to_book3s(vcpu)->sdr1 = spr_val; 3742191d657SAlexander Graf break; 3752191d657SAlexander Graf case SPRN_DSISR: 3765deb8e7aSAlexander Graf kvmppc_set_dsisr(vcpu, spr_val); 3772191d657SAlexander Graf break; 3782191d657SAlexander Graf case SPRN_DAR: 3795deb8e7aSAlexander Graf kvmppc_set_dar(vcpu, spr_val); 3802191d657SAlexander Graf break; 3812191d657SAlexander Graf case SPRN_HIOR: 3822191d657SAlexander Graf to_book3s(vcpu)->hior = spr_val; 3832191d657SAlexander Graf break; 3842191d657SAlexander Graf case SPRN_IBAT0U ... SPRN_IBAT3L: 3852191d657SAlexander Graf case SPRN_IBAT4U ... SPRN_IBAT7L: 3862191d657SAlexander Graf case SPRN_DBAT0U ... SPRN_DBAT3L: 3872191d657SAlexander Graf case SPRN_DBAT4U ... SPRN_DBAT7L: 388c1c88e2fSAlexander Graf { 389c1c88e2fSAlexander Graf struct kvmppc_bat *bat = kvmppc_find_bat(vcpu, sprn); 390c1c88e2fSAlexander Graf 391c1c88e2fSAlexander Graf kvmppc_set_bat(vcpu, bat, !(sprn % 2), (u32)spr_val); 3922191d657SAlexander Graf /* BAT writes happen so rarely that we're ok to flush 3932191d657SAlexander Graf * everything here */ 3942191d657SAlexander Graf kvmppc_mmu_pte_flush(vcpu, 0, 0); 3952191d657SAlexander Graf kvmppc_mmu_flush_segments(vcpu); 3962191d657SAlexander Graf break; 397c1c88e2fSAlexander Graf } 3982191d657SAlexander Graf case SPRN_HID0: 3992191d657SAlexander Graf to_book3s(vcpu)->hid[0] = spr_val; 4002191d657SAlexander Graf break; 4012191d657SAlexander Graf case SPRN_HID1: 4022191d657SAlexander Graf to_book3s(vcpu)->hid[1] = spr_val; 4032191d657SAlexander Graf break; 4042191d657SAlexander Graf case SPRN_HID2: 4052191d657SAlexander Graf to_book3s(vcpu)->hid[2] = spr_val; 4062191d657SAlexander Graf break; 4072191d657SAlexander Graf case SPRN_HID2_GEKKO: 4082191d657SAlexander Graf to_book3s(vcpu)->hid[2] = spr_val; 4092191d657SAlexander Graf /* HID2.PSE controls paired single on gekko */ 4102191d657SAlexander Graf switch (vcpu->arch.pvr) { 4112191d657SAlexander Graf case 0x00080200: /* lonestar 2.0 */ 4122191d657SAlexander Graf case 0x00088202: /* lonestar 2.2 */ 4132191d657SAlexander Graf case 0x70000100: /* gekko 1.0 */ 4142191d657SAlexander Graf case 0x00080100: /* gekko 2.0 */ 4152191d657SAlexander Graf case 0x00083203: /* gekko 2.3a */ 4162191d657SAlexander Graf case 0x00083213: /* gekko 2.3b */ 4172191d657SAlexander Graf case 0x00083204: /* gekko 2.4 */ 4182191d657SAlexander Graf case 0x00083214: /* gekko 2.4e (8SE) - retail HW2 */ 419b83d4a9cSAlexander Graf case 0x00087200: /* broadway */ 420b83d4a9cSAlexander Graf if (vcpu->arch.hflags & BOOK3S_HFLAG_NATIVE_PS) { 421b83d4a9cSAlexander Graf /* Native paired singles */ 422b83d4a9cSAlexander Graf } else if (spr_val & (1 << 29)) { /* HID2.PSE */ 4232191d657SAlexander Graf vcpu->arch.hflags |= BOOK3S_HFLAG_PAIRED_SINGLE; 4242191d657SAlexander Graf kvmppc_giveup_ext(vcpu, MSR_FP); 4252191d657SAlexander Graf } else { 4262191d657SAlexander Graf vcpu->arch.hflags &= ~BOOK3S_HFLAG_PAIRED_SINGLE; 4272191d657SAlexander Graf } 4282191d657SAlexander Graf break; 4292191d657SAlexander Graf } 4302191d657SAlexander Graf break; 4312191d657SAlexander Graf case SPRN_HID4: 4322191d657SAlexander Graf case SPRN_HID4_GEKKO: 4332191d657SAlexander Graf to_book3s(vcpu)->hid[4] = spr_val; 4342191d657SAlexander Graf break; 4352191d657SAlexander Graf case SPRN_HID5: 4362191d657SAlexander Graf to_book3s(vcpu)->hid[5] = spr_val; 4372191d657SAlexander Graf /* guest HID5 set can change is_dcbz32 */ 4382191d657SAlexander Graf if (vcpu->arch.mmu.is_dcbz32(vcpu) && 4392191d657SAlexander Graf (mfmsr() & MSR_HV)) 4402191d657SAlexander Graf vcpu->arch.hflags |= BOOK3S_HFLAG_DCBZ32; 4412191d657SAlexander Graf break; 4422191d657SAlexander Graf case SPRN_GQR0: 4432191d657SAlexander Graf case SPRN_GQR1: 4442191d657SAlexander Graf case SPRN_GQR2: 4452191d657SAlexander Graf case SPRN_GQR3: 4462191d657SAlexander Graf case SPRN_GQR4: 4472191d657SAlexander Graf case SPRN_GQR5: 4482191d657SAlexander Graf case SPRN_GQR6: 4492191d657SAlexander Graf case SPRN_GQR7: 4502191d657SAlexander Graf to_book3s(vcpu)->gqr[sprn - SPRN_GQR0] = spr_val; 4512191d657SAlexander Graf break; 452616dff86SAlexander Graf case SPRN_FSCR: 453616dff86SAlexander Graf vcpu->arch.fscr = spr_val; 454616dff86SAlexander Graf break; 4552e23f544SAlexander Graf #ifdef CONFIG_PPC_BOOK3S_64 4562e23f544SAlexander Graf case SPRN_BESCR: 4572e23f544SAlexander Graf vcpu->arch.bescr = spr_val; 4582e23f544SAlexander Graf break; 4592e23f544SAlexander Graf case SPRN_EBBHR: 4602e23f544SAlexander Graf vcpu->arch.ebbhr = spr_val; 4612e23f544SAlexander Graf break; 4622e23f544SAlexander Graf case SPRN_EBBRR: 4632e23f544SAlexander Graf vcpu->arch.ebbrr = spr_val; 4642e23f544SAlexander Graf break; 4659916d57eSAlexander Graf #ifdef CONFIG_PPC_TRANSACTIONAL_MEM 4669916d57eSAlexander Graf case SPRN_TFHAR: 4679916d57eSAlexander Graf vcpu->arch.tfhar = spr_val; 4689916d57eSAlexander Graf break; 4699916d57eSAlexander Graf case SPRN_TEXASR: 4709916d57eSAlexander Graf vcpu->arch.texasr = spr_val; 4719916d57eSAlexander Graf break; 4729916d57eSAlexander Graf case SPRN_TFIAR: 4739916d57eSAlexander Graf vcpu->arch.tfiar = spr_val; 4749916d57eSAlexander Graf break; 4759916d57eSAlexander Graf #endif 4762e23f544SAlexander Graf #endif 4772191d657SAlexander Graf case SPRN_ICTC: 4782191d657SAlexander Graf case SPRN_THRM1: 4792191d657SAlexander Graf case SPRN_THRM2: 4802191d657SAlexander Graf case SPRN_THRM3: 4812191d657SAlexander Graf case SPRN_CTRLF: 4822191d657SAlexander Graf case SPRN_CTRLT: 4832191d657SAlexander Graf case SPRN_L2CR: 484b0a94d4eSPaul Mackerras case SPRN_DSCR: 4852191d657SAlexander Graf case SPRN_MMCR0_GEKKO: 4862191d657SAlexander Graf case SPRN_MMCR1_GEKKO: 4872191d657SAlexander Graf case SPRN_PMC1_GEKKO: 4882191d657SAlexander Graf case SPRN_PMC2_GEKKO: 4892191d657SAlexander Graf case SPRN_PMC3_GEKKO: 4902191d657SAlexander Graf case SPRN_PMC4_GEKKO: 4912191d657SAlexander Graf case SPRN_WPAR_GEKKO: 492f2be6550SMihai Caraman case SPRN_MSSSR0: 493f3532028SAlexander Graf case SPRN_DABR: 494f8f6eb0dSAlexander Graf #ifdef CONFIG_PPC_BOOK3S_64 495f8f6eb0dSAlexander Graf case SPRN_MMCRS: 496f8f6eb0dSAlexander Graf case SPRN_MMCRA: 497f8f6eb0dSAlexander Graf case SPRN_MMCR0: 498f8f6eb0dSAlexander Graf case SPRN_MMCR1: 499f8f6eb0dSAlexander Graf case SPRN_MMCR2: 500f8f6eb0dSAlexander Graf #endif 5012191d657SAlexander Graf break; 502317a8fa3SAlexander Graf unprivileged: 5032191d657SAlexander Graf default: 5042191d657SAlexander Graf printk(KERN_INFO "KVM: invalid SPR write: %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 5143a167beaSAneesh Kumar K.V int kvmppc_core_emulate_mfspr_pr(struct kvm_vcpu *vcpu, int sprn, ulong *spr_val) 5152191d657SAlexander Graf { 5162191d657SAlexander Graf int emulated = EMULATE_DONE; 5172191d657SAlexander Graf 5182191d657SAlexander Graf switch (sprn) { 5192191d657SAlexander Graf case SPRN_IBAT0U ... SPRN_IBAT3L: 5202191d657SAlexander Graf case SPRN_IBAT4U ... SPRN_IBAT7L: 5212191d657SAlexander Graf case SPRN_DBAT0U ... SPRN_DBAT3L: 5222191d657SAlexander Graf case SPRN_DBAT4U ... SPRN_DBAT7L: 523c1c88e2fSAlexander Graf { 524c1c88e2fSAlexander Graf struct kvmppc_bat *bat = kvmppc_find_bat(vcpu, sprn); 525c1c88e2fSAlexander Graf 526c1c88e2fSAlexander Graf if (sprn % 2) 52754771e62SAlexander Graf *spr_val = bat->raw >> 32; 528c1c88e2fSAlexander Graf else 52954771e62SAlexander Graf *spr_val = bat->raw; 530c1c88e2fSAlexander Graf 5312191d657SAlexander Graf break; 532c1c88e2fSAlexander Graf } 5332191d657SAlexander Graf case SPRN_SDR1: 534317a8fa3SAlexander Graf if (!spr_allowed(vcpu, PRIV_HYPER)) 535317a8fa3SAlexander Graf goto unprivileged; 53654771e62SAlexander Graf *spr_val = to_book3s(vcpu)->sdr1; 5372191d657SAlexander Graf break; 5382191d657SAlexander Graf case SPRN_DSISR: 5395deb8e7aSAlexander Graf *spr_val = kvmppc_get_dsisr(vcpu); 5402191d657SAlexander Graf break; 5412191d657SAlexander Graf case SPRN_DAR: 5425deb8e7aSAlexander Graf *spr_val = kvmppc_get_dar(vcpu); 5432191d657SAlexander Graf break; 5442191d657SAlexander Graf case SPRN_HIOR: 54554771e62SAlexander Graf *spr_val = to_book3s(vcpu)->hior; 5462191d657SAlexander Graf break; 5472191d657SAlexander Graf case SPRN_HID0: 54854771e62SAlexander Graf *spr_val = to_book3s(vcpu)->hid[0]; 5492191d657SAlexander Graf break; 5502191d657SAlexander Graf case SPRN_HID1: 55154771e62SAlexander Graf *spr_val = to_book3s(vcpu)->hid[1]; 5522191d657SAlexander Graf break; 5532191d657SAlexander Graf case SPRN_HID2: 5542191d657SAlexander Graf case SPRN_HID2_GEKKO: 55554771e62SAlexander Graf *spr_val = to_book3s(vcpu)->hid[2]; 5562191d657SAlexander Graf break; 5572191d657SAlexander Graf case SPRN_HID4: 5582191d657SAlexander Graf case SPRN_HID4_GEKKO: 55954771e62SAlexander Graf *spr_val = to_book3s(vcpu)->hid[4]; 5602191d657SAlexander Graf break; 5612191d657SAlexander Graf case SPRN_HID5: 56254771e62SAlexander Graf *spr_val = to_book3s(vcpu)->hid[5]; 5632191d657SAlexander Graf break; 564aacf9aa3SAlexander Graf case SPRN_CFAR: 565b0a94d4eSPaul Mackerras case SPRN_DSCR: 56654771e62SAlexander Graf *spr_val = 0; 567aacf9aa3SAlexander Graf break; 568b0a94d4eSPaul Mackerras case SPRN_PURR: 5693cd60e31SAneesh Kumar K.V /* 5703cd60e31SAneesh Kumar K.V * On exit we would have updated purr 5713cd60e31SAneesh Kumar K.V */ 5723cd60e31SAneesh Kumar K.V *spr_val = vcpu->arch.purr; 573b0a94d4eSPaul Mackerras break; 574b0a94d4eSPaul Mackerras case SPRN_SPURR: 5753cd60e31SAneesh Kumar K.V /* 5763cd60e31SAneesh Kumar K.V * On exit we would have updated spurr 5773cd60e31SAneesh Kumar K.V */ 5783cd60e31SAneesh Kumar K.V *spr_val = vcpu->arch.spurr; 579b0a94d4eSPaul Mackerras break; 5808f42ab27SAneesh Kumar K.V case SPRN_VTB: 5818f42ab27SAneesh Kumar K.V *spr_val = vcpu->arch.vtb; 5828f42ab27SAneesh Kumar K.V break; 5832191d657SAlexander Graf case SPRN_GQR0: 5842191d657SAlexander Graf case SPRN_GQR1: 5852191d657SAlexander Graf case SPRN_GQR2: 5862191d657SAlexander Graf case SPRN_GQR3: 5872191d657SAlexander Graf case SPRN_GQR4: 5882191d657SAlexander Graf case SPRN_GQR5: 5892191d657SAlexander Graf case SPRN_GQR6: 5902191d657SAlexander Graf case SPRN_GQR7: 59154771e62SAlexander Graf *spr_val = to_book3s(vcpu)->gqr[sprn - SPRN_GQR0]; 5922191d657SAlexander Graf break; 593616dff86SAlexander Graf case SPRN_FSCR: 594616dff86SAlexander Graf *spr_val = vcpu->arch.fscr; 595616dff86SAlexander Graf break; 5962e23f544SAlexander Graf #ifdef CONFIG_PPC_BOOK3S_64 5972e23f544SAlexander Graf case SPRN_BESCR: 5982e23f544SAlexander Graf *spr_val = vcpu->arch.bescr; 5992e23f544SAlexander Graf break; 6002e23f544SAlexander Graf case SPRN_EBBHR: 6012e23f544SAlexander Graf *spr_val = vcpu->arch.ebbhr; 6022e23f544SAlexander Graf break; 6032e23f544SAlexander Graf case SPRN_EBBRR: 6042e23f544SAlexander Graf *spr_val = vcpu->arch.ebbrr; 6052e23f544SAlexander Graf break; 6069916d57eSAlexander Graf #ifdef CONFIG_PPC_TRANSACTIONAL_MEM 6079916d57eSAlexander Graf case SPRN_TFHAR: 6089916d57eSAlexander Graf *spr_val = vcpu->arch.tfhar; 6099916d57eSAlexander Graf break; 6109916d57eSAlexander Graf case SPRN_TEXASR: 6119916d57eSAlexander Graf *spr_val = vcpu->arch.texasr; 6129916d57eSAlexander Graf break; 6139916d57eSAlexander Graf case SPRN_TFIAR: 6149916d57eSAlexander Graf *spr_val = vcpu->arch.tfiar; 6159916d57eSAlexander Graf break; 6169916d57eSAlexander Graf #endif 6172e23f544SAlexander Graf #endif 6182191d657SAlexander Graf case SPRN_THRM1: 6192191d657SAlexander Graf case SPRN_THRM2: 6202191d657SAlexander Graf case SPRN_THRM3: 6212191d657SAlexander Graf case SPRN_CTRLF: 6222191d657SAlexander Graf case SPRN_CTRLT: 6232191d657SAlexander Graf case SPRN_L2CR: 6242191d657SAlexander Graf case SPRN_MMCR0_GEKKO: 6252191d657SAlexander Graf case SPRN_MMCR1_GEKKO: 6262191d657SAlexander Graf case SPRN_PMC1_GEKKO: 6272191d657SAlexander Graf case SPRN_PMC2_GEKKO: 6282191d657SAlexander Graf case SPRN_PMC3_GEKKO: 6292191d657SAlexander Graf case SPRN_PMC4_GEKKO: 6302191d657SAlexander Graf case SPRN_WPAR_GEKKO: 631f2be6550SMihai Caraman case SPRN_MSSSR0: 632f3532028SAlexander Graf case SPRN_DABR: 633f8f6eb0dSAlexander Graf #ifdef CONFIG_PPC_BOOK3S_64 634f8f6eb0dSAlexander Graf case SPRN_MMCRS: 635f8f6eb0dSAlexander Graf case SPRN_MMCRA: 636f8f6eb0dSAlexander Graf case SPRN_MMCR0: 637f8f6eb0dSAlexander Graf case SPRN_MMCR1: 638f8f6eb0dSAlexander Graf case SPRN_MMCR2: 639a5948fa0SAlexander Graf case SPRN_TIR: 640f8f6eb0dSAlexander Graf #endif 64154771e62SAlexander Graf *spr_val = 0; 6422191d657SAlexander Graf break; 6432191d657SAlexander Graf default: 644317a8fa3SAlexander Graf unprivileged: 6452191d657SAlexander Graf printk(KERN_INFO "KVM: invalid SPR read: %d\n", sprn); 6462191d657SAlexander Graf #ifndef DEBUG_SPR 6472191d657SAlexander Graf emulated = EMULATE_FAIL; 6482191d657SAlexander Graf #endif 6492191d657SAlexander Graf break; 6502191d657SAlexander Graf } 6512191d657SAlexander Graf 6522191d657SAlexander Graf return emulated; 6532191d657SAlexander Graf } 6542191d657SAlexander Graf 6552191d657SAlexander Graf u32 kvmppc_alignment_dsisr(struct kvm_vcpu *vcpu, unsigned int inst) 6562191d657SAlexander Graf { 657ddca156aSAneesh Kumar K.V return make_dsisr(inst); 6582191d657SAlexander Graf } 6592191d657SAlexander Graf 6602191d657SAlexander Graf ulong kvmppc_alignment_dar(struct kvm_vcpu *vcpu, unsigned int inst) 6612191d657SAlexander Graf { 6627310f3a5SAneesh Kumar K.V #ifdef CONFIG_PPC_BOOK3S_64 6637310f3a5SAneesh Kumar K.V /* 6647310f3a5SAneesh Kumar K.V * Linux's fix_alignment() assumes that DAR is valid, so can we 6657310f3a5SAneesh Kumar K.V */ 6667310f3a5SAneesh Kumar K.V return vcpu->arch.fault_dar; 6677310f3a5SAneesh Kumar K.V #else 6682191d657SAlexander Graf ulong dar = 0; 669c46dc9a8SAlexander Graf ulong ra = get_ra(inst); 670c46dc9a8SAlexander Graf ulong rb = get_rb(inst); 6712191d657SAlexander Graf 6722191d657SAlexander Graf switch (get_op(inst)) { 6732191d657SAlexander Graf case OP_LFS: 6742191d657SAlexander Graf case OP_LFD: 6752191d657SAlexander Graf case OP_STFD: 6762191d657SAlexander Graf case OP_STFS: 6772191d657SAlexander Graf if (ra) 6782191d657SAlexander Graf dar = kvmppc_get_gpr(vcpu, ra); 6792191d657SAlexander Graf dar += (s32)((s16)inst); 6802191d657SAlexander Graf break; 6812191d657SAlexander Graf case 31: 6822191d657SAlexander Graf if (ra) 6832191d657SAlexander Graf dar = kvmppc_get_gpr(vcpu, ra); 684c46dc9a8SAlexander Graf dar += kvmppc_get_gpr(vcpu, rb); 6852191d657SAlexander Graf break; 6862191d657SAlexander Graf default: 6872191d657SAlexander Graf printk(KERN_INFO "KVM: Unaligned instruction 0x%x\n", inst); 6882191d657SAlexander Graf break; 6892191d657SAlexander Graf } 6902191d657SAlexander Graf 6912191d657SAlexander Graf return dar; 6927310f3a5SAneesh Kumar K.V #endif 6932191d657SAlexander Graf } 694